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Yokohama Product Catalog

1. mam oe ma 402 19 124 187 520 66100120 8056 20 30989 27250630 75 1825 es e mm 85 75 108 414 19 120 193 504 61750105 58400105 28000720 26500720 75 1825 025 mm 85 78 108 En 19 180 193 04 em BOO5 120 200098 27250830 75 25795455 Qoo 168 nm 835 108 414 19 118 192 503 61750110 222610 28000760 25750760 75 1845 e e 15 B25 750 107 64 19 118 200 483 8808 05 60056105 30000720 27258720 75 1845 229 18H 15 85 750 107 4 19 118 an 83 71600120 5100120 82509630 men 75 eer Serice 41 YOKOHAMA 7O03ZL On Highway Line Haul Drive Axle Operations The 703ZL was the first tire created from our revolutionary Zenvironment concept Utilizing the latest advances in tire technology to offer longer treadwear and the lowest rolling resistance in its category the 703ZL can significantly lower your operating costs for both fuel and tires FEATURES AND BENEFITS Derived from Zenvironment technology our latest compound helps distribute contact pressure more evenly across the tread surface for longer more even treadwear The 703Zs revolutionary casing is backed by a 7 year warranty and offers increased durability and stabilized performance over the life of the tire 32 32 Original Tread Depth is the deepest of any line haul drive tire in the industry for extremely long original treadwear Ga C4 eenvironment 7032L replaces Michelin XD4 XDA HT Goodyear G372 Bridgestone M726EL ply npe NEE INFLATED DIMENSIO
2. LO Box Fullerton CA 92834 4550 800 423 4544 714 870 3800 COMMERCIAL CUSTOMER SERVICE For Dealer Orders Call 800 241 7051 Dealer Fax Orders Call 800 455 9656 770 932 0560 CONSUMER AFFAIRS 800 722 9888 yokohamatire com SmartWay Ti rt Part eee luciana 800 282 1570 M 300 0410 gt YOKOHAMA 0RIGINAL TREAD DEPTH CHART 10 RYB17 RYOB3A 103ZR 104ZR R 750815 FRT TT una B25R15TR TT DND 1000R15TR TT G 18 J 18 825R20 TL 415 500824 9817 5HC TL HAB 108175 TL M7 11R17 5HG TL HAB 215 75817 5 TL HIG 285 75R17 5 TL HB 9R22 5 TL 817 FAS 108225 TL one 6 16 WA 618 og 649 623853 19H19 6882 6 3 6 92 6 30 68 W28 11R245 TL 618 68 649 623853 Gugnmg 622 843 6 92 G 30 68 H 28 158525 W20 W20 225 70R19 5 TL 818 45 708195 TL 6 6 265 70R19 5 TL 6 17 2857081895 TL HA7 245 75R22 5 TL GA7 265 75R22 5 TL G7 255 70R22 5 TL HAB 275 70R22 5 TL HAZ 285758225 Ge 648 649 623853 Gugnmg 8 2 843 6 92 G 30 68 H 28 295 808225 TL W20 285 75R24 5TL 68 648 649 6 23 6 9 6 32 843 6 92 6 90 6 28 315 80R22 5 TL 385 65R22 5 TL 425 858225 TL 445 65R22 5 TL 780R15 FAT TT B25R15TH TT 1000R15TR TT 825R20 TT 1200R24 TL w23 9R17 5HC 108175 TL 11R17 5HC TL 215 75817 5 TL 235 75R17 5 TL 98295 108525 19R22 5 TL 658 558 858 881 H26 He 11H245 TL H28 628 58 81 H26 He6 158525 W20 225 70R19 5TL Fon 819 5457708195 TL 265 70R19 5TL Gen 285 708195TL W21 245 75R22 5 TL 2
3. Chevrolet W4 06 GMC W4 E 04 06 Isuzu NPR E 09 10 pty tine PMSZE INFLATED DIMENSIONS p LOADED DIMENSIONS MAX LOAD CAPACITY AT Tine size PART mariNG WeicHT MEAS ALT OVERALL OVERALL DEpTH SECTION STATIC RPM NUMBER LR LBS WIDTH DIAMETER 1 32 WIDTH RADIUS LB PSI LE PS KG KPA KEKPA INCH INCH NCH NOCH SINGLE DUAL SINGLE DUAL 02888 6 oan 1 4 80 85 70 85 205 8 an 142 2650000 200980 12150550 11200550 YOKOHAMA o RY103 RY103A LIGHT TRUCK CDMMERCIAI Highway All Steel Steel Belted Radial Rib Low profile all position radial for on highway and in city haul operations It is also manufactured in a number of sizes for special applications and is recommended for light duty vans and pickups The versatile reliable RY103 RY103A incorporates low profile engineering with proven quality construction for more miles per gallon greater tire mileage more payload potential improved handling and better stability in steer drive trailer and dolly applications FEATURES AND BENEFITS Straight Five rib Tread Design with four grooves inhibits stone retention promotes even wear and provides a smooth ride improved handling and superior wet traction Wide Shoulder Ribs reduce shoulder step wear Each size is manufactured with a specific tread depth to meet a greater range of applications Excellent performance on all free rolling positio
4. 285 775245 MS mm am 108 410 13 118 192 50 6175010 5575010 2006760 25756760 25 118545 MG 5 8 75 108 430 13 120 200 485 een 60056105 30006720 27250720 25 8 Verified 49 YOKOHAMA TRUCK STEEL RADI On Highway In City Low Profile All Position The RY103 is available in a number of sizes for special applications and is recommended for light duty vans and pickups The versatile and reliable RY103 incorporates low profile engineering with proven quality construction for more miles per gallon greater tier mileage more payload potential improved handling and better stability in steer drive trailer and dolly applications FEATURES AND BENEFITS Straight Five rib Tread Design with four grooves inhibits stone retention promotes even wear and provides a smooth ride improved handling and superior wet traction Wide Shoulder Ribs reduce shoulder step wear Each size is manufactured with a specific tread depth to meet a greater range of applications emm Strain nergy Minimization RY103 replaces Michelin XZA Goodyear G169 Bridgestone R250 py tine BN 82 INFLATED DIMENSIONS LOADED DIMENSIONS MAX LOAD CAPACITY AT tine size PART patine wg MEAS ALT OVERALL OVERALL peprH SECTION STATIC RPM ARS WOU BREESE MAX NUMBER ai LBS WIDTH DIAMETER 1 32 WIDTH RADIUS LBPS LBPSI KGKPA KGKPA SPEED INCH NCH ONCH ONCH ONCH SINGLE DUAL SINGLE DUAL MPH 24575H225 403p
5. 50751 50752 50753 TIRE Al IM SIZE y RATING WEIGHT MEAS ALT LR 18 H LBS 178 5 220 57 YOKOHAMA 1128 1800 11751225 1400 INCH 1825 1800 INFLATED DIMENSIONS OVERALL WIDTH INCH 149 185 177 LOADED DIMENSIONS COS MAX LOAD CAPACITY AT OVERALL DEPTH SECTION STATIC RPM MAX DIAMETER 1 32 WIDTH RADIUS LBPS pp ve KGKPA SPEED ONCH ONCH INCH SINGLE DUAL SINGLE DUAL MPH 408 a mn 197 45 62 09 9 NA eem e e 23 ma 205 920 MAOO MA neen ww 65 457 B ma 20 e 12390120 5909 e TRUCK STEEL RADI Wide Base On Highway All Position The RY253 is a low profile wide base all position radial for on highway line haul operations This wide base performer offers several advantages over dual tire assemblies lower initial cost greater payload potential better fuel economy and easier maintenance The six rib tread design delivers top traction in wet driving conditions and excellent lateral stability Special tread compounds generate less heat to provide reliable high speed operation and extend the life of the tire FEATURES AND BENEFITS Heat resistant Tread Compounds produce a cool running tire Six rib Tread Design provides superior traction on wet roads a smooth ride and even wear Wide Rigid Shoulder Ribs help prevent sidewall cutting and scuffing Special Risers in the groove corners and St
6. EXAMPLE 146 3000 6610 295 75822 5 144 1411 147 3075 6780 148 3150 6940 144 corresponds to a single tire carrying capacity of 6175 Ibs at maximum cold 149 3250 7180 inflation at or below 75 miles per hour Speed Symbol L 150 3350 7390 141 corresponds to a dual tire carrying capacity of 5675 Ibs at maximum cold dB ADD SE inflation at or below 75 miles per hour Speed Symbol L 152 Sonn SE 153 3650 8050 154 3750 8270 155 3875 8540 156 4000 8820 157 4125 9090 158 4250 9370 159 4375 9650 160 4500 9950 161 4625 10200 162 4750 10500 163 4875 10700 164 5000 11000 165 5150 11400 166 5300 11700 167 5450 12000 168 5600 12300 169 5800 12800 170 6000 13200 For cold inflation pressures see pages 33 amp 34 load inflation pressure tables YOKOHAMA 12 TRUCK TIRE BASICS PROPER MATCHING AND SPACING OF DUALS FROM RMA CARE AND SERVICE OF LIGHT TRUCK AND TRUCK TIRES Paired tires should be of the same size designation construction tread design and as close as possible to same outside diameter Never pair a radial and a non radial tire as duals Mismatching duals forces the larger diameter tire to carry an overload causing it to overdeflect and overheat The smaller diameter tire lacking proper road contact wears faster and irregularly Tread or ply separation tire body breaks and blowouts can develop from mismatched duals DUAL MATCHING TOLERANCES Maximum allowable diameter differences between a tire and its du
7. Heavy duty Two Ply Steel Belts deliver handling stability and puncture resistance Polyester Body Plies increase your comfort on the road py RIM SIZE INFLATED DIMENSIONS nr LOADED DIMENSIONS MAX LOAD CAPACITY AT gine size PART pamine WElGHT MEAS ALT OVERALL OVERALL DEPTH SECTION STATIC RPM ZER NUMBER ER 88 WIDTH DIAMETER 1 32 WIDTH RADIUS LBPS LBPS KGAPA KGAPA mu INCH INCH INCH ONCH SINGLE DUAL SINGLE DUAL LE1565R16 7885 WE 42 60 5570 85 304 13 90 141 BE3 269068 2470080 12150550 112659 Ue3SG5R16 78810 8D 4 85 8070 83 317 8 10 1 147 65 25266 2381665 11900450 10000450 0256889 6 78809 1 8 85 8070 83 317 8 11 147 E55 20508 2770880 12150550 12600550 59 YOKOHAMA TY213A LIGHT TRUCK COMMERCIA Highway Steel Belted Radial Rib The TY213A is designed for all position use in commercial light truck applications The five rib tread design offers outstanding stability and water drainage for highway or urban use The constant contact tread block keeps an optimum amount of rubber on the road for improved handling and resistance to irregular wear FEATURES AND BENEFITS Five rib Tread Design for improved handling and excellent wet traction Combination Construction of polyester casing and steel belts provide outstanding durability Load Range E Load Capacity for heavy duty applications OE FITMENT ON Isuzu NPR 05 Mitsubishi Fuso FE HD 04 10
8. LONGER WEAR amp LOWER IMPROPER CAMBER SETTINGS POSITIVE CAMBER WHEEL IS TILTED OUTWARD AT THE TOP Result Smooth fast wear on the outer half of the steer tires NEGATIVE CAMBER WHEEL IS TILTED INWARD AT THE TOP Result Smooth fast wear on the inner half of the steer tires Camber Wear On newer trucks camber wear should not be a major problem Heavy duty trucks leave the factory with zero to slightly positive camber Unless the tire and wheel assembly tilt is visibly obvious it can be disregarded Correcting camber involves either bending the front axle which voids most manufacturer s warrantees or replacing the axle If an alignment shop print out indicates that camber is out of spec the front bearings should be checked This looseness may contribute to this out of spec camber reading OTHER FACTORS AFFECTING TIRE WEAR AND TIRE LIFE Factors other than air pressure which prevent a tire from rolling stable and Straight through its footprint Speed in excess of tire design i e 75 mph Speeds in excess of a tire s designed capability lengthens the footprint This lengthening will cause premature wear on the shoulders of the tires RECAP The five major factors which result in premature steer tire shoulder wear Improper air pressure either under inflation or over inflation Loose wheel bearings which cause cupping type wear Improper toe setting which cause one shoulder wear on both t
9. 2765 2755 2930 3085 31788 333016 D Sonn 2470 2855 2470 2790 3020 20200 3175 8 light Truck Tire Load Limits Ihs at Various Cold Inflation Pressures psi Tire pressure is minimum for the load Commercial Tubeless i Tire Size Designation 38 8 30 5 E 5 78 7 E 55 700868 8 1950 1480 1610 1710 1830 1940 208 D 190 1310 4420 1520 1620 1718 18200 185708155 8 1345 1450 1555 1660 1760 1860 1980 20908 D 1800 1400 1500 1600 170 1795 1890 1980 1T235 85R16 8 1700 1870 2080 2050 2335 2485 26200 2765 2905 2049 D 1700 185 20080 2125 20 23800 2515 255 278016 1T215 85R16 8 1495 1840 1785 1940 2050 2180 23350 2430 2550 26800 D 1880 4490 1625 1785 185 195 2000 220 2320 240 88 25 8 1920 2075 2225 2370 2515 2660 279016 D 185 1830 1980 2090 2220 2345 24606 Light Truck Commercial Tuheless Metric Tire Load Limits Ibs at Various Cold Inflation Pressures psi Tire pressure is minimum for the load High Capacity Tire Size Designation 5 C D E 8 100 105 118 115 120 155 130 g1575R175G 8 2040 3095 3250 8405 5 27500 D 270 215 3060 205 335 353016 2157581758 8 4065 4225 4385 456 4705 485 1 uo 3840 3995 4145 425 4445 45001 215 708175G 2920 2985 200 3 5 3260 34123 D 2755 220 ee 3020 2085 31 9 2357581758 5E 5165 5380 5550 5745 5925 600501 D 48 5 506 5265 5490 5610 5675H 33 YOKOHAMA Tubeless Tire Load Limits 5 at Various Cold Inflation Pressures psi Tire pressure is minimu
10. 85 485455 mp 149 mm ae 780 mu 433 18 123 22 1 Available 3 Quarter 2010 SmartWay Verified 27 YOKOHAMA C4 environment MAX LOAD CAPACITY AT COLD INFLATION PRESSURE LB PSI SINGLE 61750110 61750105 61750110 66100105 LB PSI DUAL 56750110 58406105 529110 605916 KG KPA SINGLE 28000760 28008720 28000760 30000720 Zenvironment construction compensates for casing growth while greatly reducing strain in shoulder and bead areas resulting in lower rolling resistance and better fuel efficiency Contact Pressure Equalizer Sipes optimize rib contact pressure to resist uneven wear and improve wet weather braking and handling KG KPA DUAL 25750760 88500720 25750760 27250720 s easy to Stress Equalizer Ribs increase road contact at the shoulder edge while serpentine grooves add rigidity to the shoulder rib for greater tear resistance Multiple Sipes create an ideal footprint for optimal rib edge contact pressure which helps MAX SPEED MPH 75 75 75 75 RY617 Highway Line Haul Steer and All Position FEATURES AND BENEFITS Five rib Tread Design is the perfect all position high performer Now enhanced with over 6 000 Stress Control Sipes this premium feature provides excellent water evacuation and uniform wear The stress control sipes are also especially effective in combating river wear Variable Contour Groove Wall provides added rib stiffness that further combats une
11. MG mom 87 25 17 404 175 586 2500 4300e110 21200780 19500760 75 25725 1034 G e 750 825 90 284 17 us 81 51 225810 485810 220670 21800760 25 227825 me 108 85 75 108 27 17 48 6 553 eme 6175e125 3 500900 290090 25 YOKOHAMA so Y ZP TRU EEL RADIA On Highway In City All Position The Y785R is ideal for all position radial tire use for in city haulers such as package delivery vehicles oil delivery vehicles light duty vans and pickups It has proven for over a decade that it s an excellent tire in its class and that it delivers great fuel economy Its straight five rib tread design promotes even treadwear and together with the wide shoulder ribs delivers a smooth ride easy handling and improved shoulder step wear It s manufactured in a number of specialty sizes for specific applications including low platform heavy load and on off road FEATURES AND BENEFITS Straight Five rib Tread Design with Four Wide Grooves reduces stone retention and provides a smooth ride improved handling and superior wet traction Wide Shoulder Ribs reduce shoulder step wear Extremely Fuel efficient Compounds ensure ultimate fuel economy while providing excellent integrity and durability Y785R replaces Michelin XZA Goodyear G149 Bridgestone R187 py tine BMMSIZE INFLATED DIMENSIONS weu LOADED DIMENSIONS MAX LOAD CAPACITY AT tine size PART RATING w n MEAS ALT OVERALL OVERALL pepTH SECTION STATIC R
12. broken bent or otherwise damaged rims wheels must not be reworked welded brazed or otherwise heated but must be properly scrapped Apply a nonflammable rubber lubricant on the tire bead and rim wheel mating surfaces before tire and rim wheel assembly x Current safety and matching charts or rim manuals containing instructions for the types of wheels being serviced must be available in the service area TIRE AND RIM SAFETY PROCEDURES page 14 18 SOURCE Technology amp Maintenance Council TMC of American Trucking Associations 2200 Mill Road Alexandria VA 22314 703 838 1763 http tmc truckline com BEAD LUBE Preferred materials for usage as bead lubricants are 1 Vegetable oil soaps 2 Animal soaps These materials will have no adverse affect on tires or rims If the approved lubricants are applied in water solutions they must contain 10 to 20 percent solids and a rust inhibitor When dry the lubricant should have no residual lubricity and should not flake from the surface upon which it is applied It is recommended the lubricant be purchased in a ready to use state decreasing the possibility of contamination due to improper dilution Mounting procedures and safety precautions as outlined by tire or rim manufacturers or as contained in such publications as the Rubber Manufacturer s Association care and service manuals should be adhered to To avoid damage to tires and rims the following materials should
13. chipping With up to a 26 32 tread depth the MY507 delivers incredible steer axle and overall mileage during original tread life FEATURES AND BENEFITS Four Rugged Contra diagonal Ribs with Aggressive Buttressed Shoulders give full directional and steering stability on steering axles as well as excellent traction and braking on drive axles Newly Developed Steel Cord Top Belt helps protect against rust and stone penetration damage while also minimizing tread distortion and heat generation emm Sirainergy Minimization MY507 replaces Michelin XZY 2 XZY 3 Goodyear G288 Bridgestone M843 py nae PMSIZE INFLATED DIMENSIONS wu LOADED DIMENSIONS MAX LOAD CAPACITY AT size PART pamine weight MEAS ALT OVERALL OVERALL Geen SECTION STATIC RPM GNIERESSUBE MAX NUMBER uni 88 WIDTH DIAMETER 1 32 WIDTH RADIUS LB PSI LB PS KGKPA KG KPA SPEED NH ONCH ONCH INCH NCH SINGLE DUAL SINGLE DUAL MPH 257925 57 8 em 6 85 72 o 358 m 408 172 557 55100120 50700120 25000630 2300830 75 BIIORPBS 870 e nm 85 750 109 384 2 408 177 58 69400130 63950130 31508000 29000900 75 1825 ams J amp H 1 8 ae 750 mm 424 180 187 495 a 60050120 30000630 272508630 65 14R245 am e 198 ae 750 99 a 481 207 o 7600120 66100120 32500830 30000630 e YOKOHAMA 54 IMI 6e 7Ww TRUCK STEEL RADIAL All Position Waste Sanitation The all new MY627W is engineered to meet the rugged demands of front load residential waste ve
14. compounds with special properties to ensure the integrity and durability of the tire TREAD DESIGN The function of the tread is to increase the durability and operational life of the tire It is the pattern of the tread combined with specially formulated rubber compounds that gives each tire its specific performance characteristics Recognized as a leader in tread design Yokohama is continually researching new tread compounds and innovative tread patterns to improve tire performance and fuel efficiency The Yokohama tread designs below are examples of basic types used throughout the industry Yokohama combines the best of these basic designs as in the rib block example to create a wide range of tires that enhance quality and durability to meet all consumer needs Combined Rib Block Type This pattern combines block type tread in the center with a shoulder rib design and has the following advantages Low rolling resistance Comfortable ride Relatively low noise generation Good traction on snow or in muddy terrain Lug Type In this pattern the grooves are cut across the tread and has the following advantages High braking force Excellent traction on unpaved surfaces Block Type This tread pattern is composed of independent blocks and has the following advantages Outstanding braking force and traction Good traction on snow or in muddy terrain Rib Type In the r
15. is repaired and reinspected Devices that need structural repair requiring component replacement or rewelding must be certified by either the manufacturer or a registered professional engineer as meeting the strength requirements noted in paragraph a of this section SAFE OPERATING PROCEDURES FOR MULTI PIECE RIMS WHEELS TIRE DEMOUNTING FOR MULTI PIECE RIMS WHEELS All tires must be completely deflated prior to demounting Remove the valve core to ensure complete deflation The valve stem can be checked by running a piece of wire through the stem to make sure it is not plugged A tire both tires of a dual assembly on multi piece rims wheels must be completely deflated before removal from the axle in either of the following situations 1 When the tire has been driven underinflated at 80 percent or less of its recommended pressure 2 When there is obvious or suspected damage to the tire or wheel components A CAUTION Stay out of the rim wheel and air blast trajectory during deflation YOKOHAMA 14 RUCK TIRE BASICS Follow all recommended demounting procedures and use the proper well maintained tools as specified in rim wheel manufacturer service manuals Apply nonflammable rubber lubricant to both bead seat areas of the rim wheel to ease demounting and reduce tire damage See page 18 for appropriate bead lubricants The use of volatile materials is strictly prohibited After demounting inspect the rim wheel component
16. manufacturer RETREAD TIRE CODES All retread tires must have an additional DOT code affixed to their sidewalls as well There is no specific location designated for the retreader code however it is recommended that it be placed on the lower sidewall near the original tire DOT code The National Highway Traffic and Safety Administration NHTSA assigns each retreader a three letter shop identification code The retreader can designate the next two letters or digits to signify the matrix or chamber the tire was cured in or the tire size The third group of no more than four symbols is optional and may be used by the retreader as a descriptive code for the purpose of identifying significant characteristics of the tire This nomenclature is then followed by the production date of the next retread The first two digits identify the production week and the last two digits identify the production year GUIDELINES FOR RETREADS WITHOUT MARKINGS Optional decade identifier or odd numbered decades Le 1990s Manufacturer Tire 3 4 Spaces icturer Date and Plant THIS CODE MUST APPEAR ON THE LOWER SIDEWALL ONE SIDE OF THE TIRE Tire Type Code DOT A FB4K VAB 02 09 Manufactur f TireSiz Type Code W ekof Year of Manufacture and Plant 0 4 Spaces Optional Manufacture THIS CODE MUST APPEAR ON THE LOWER SIDEWALL ONE SIDE OF THE TIRE Identifier for 2000 and after R ANY BC FNA 4008 ERAS
17. point Rotate to match the high point of the assembly run out with the wheel low point If the assembly run out is still too high and the wheel is within specification replace the tire Lateral run out Achieved by using a run out gauge to check both the tire and wheel Chalk mark the highest point of run out on both the wheel and tire Replace whichever wheel tire or both is out of specification VIBRATION DIAGNOSIS Visually inspect tires wheels rims and vehicle for irregular wear damaged wheels rims or vehicle component damage Replace or adjust as required M Check to be certain tires are inflated according to vehicle manufacturer recommendations and the vehicle suspension is working correctly and vehicle is not tilting e Check tire to be certain it is mounted properly on the wheel rim The tire fitting line should be concentric with the rim flange If the tire has a yellow or red mark on the tire it should be oriented to the rim correctly See Match Mounting section a Test drive vehicle on a smooth road surface and diagnose symptoms Five to ten mile warm up is recommended to remove any flat spotting Steering wheel vibration diagnosis should begin with front axle wheel and tire conditions and floor or seat vibration diagnosis should begin with drive axle wheel and tire conditions Power train and brake conditions can be diagnosed by alternate brake application and transmission being placed in neutral d
18. shaped Grooved Wall provides enhanced traction while reducing stone retention increased block rigidity for added traction and even wear with superior ride comfort Closed Shoulder Rib enables more rubber to road contact for long even wear Mud and snow rating provides outstanding traction in any weather TV577 replace Michelin XD4 XDA HT Goodyear G372 Bridgestone M726 RIM SIZE INFLATED DIMENSIONS un LOADED DIMENSIONS MAX LOAD CAPACITY AT TIRE size PART RATING WEIGHT MEAS ALT OVERALL OVERALL DEPrH SECTION STATIC RPM BOLO UNCER ON EBESSUBE MAX NUMBER uni 088 WIDTH DIAMETER 1 32 WIDTH RADIUS LB PSI LE PSI KG KPA KGKPA SPEED CINCH ONCH INCH INCH ONCH SINGLE DUAL SINGLE DUAL MPH 25785 emm we 18 om 825 4 408 2 mu mu 89 61750110 56750110 28000760 25758760 5 msn ag 19 e ae 750 109 423 30 120 196 495 61750105 58400105 28000720 26500720 5 38575H245 em 146 18 85 408 e a mn 86 48 6175110 55910 28000760 25758760 5 85455 570 9 191 B25 750 109 443 30 90 22 472 66108105 60050105 30000720 27256720 75 25795 eer 4 e om 825 na 408 pu mu 53 6509 0 eo mua 27256860 75 4825 27 wm 198 ae 750 109 423 2 0 196 495 66108120 eo 30000630 2725060 75 mes a mm ae 750 068 443 2 90 207 82 71600120 ema 32500630 300692 75 SmartWay Verified YOKOHAMA 44 TY517 TY517 MC On Highway Line Haul Drive Axle Operations The TY517 is a highly efficient drive axle on high
19. the tire s sidewall Tires on single piece wheels may also be inflated when bolted on the vehicle with the lug nuts fully tightened A CAUTION All persons must stay out of the rim wheel and air blast trajectory when inflating a tire Always use a clip on air chuck with enough hose to permit the employee to stand clear of the potential trajectory of the tire and rim wheel The air line must have an in line valve with a gauge or a pressure regulator with a gauge preset to the desired valve Do not exceed the inflation pressure molded on the tire sidewall or the maximum pressure of the rim wheel unless a higher pressure is recommended by the manufacturer Never inflate above 40 psi to seat any tire bead If the beads are not seated against the rim flange stop deflate the tire and determine the problem Tires may be inflated on the vehicle providing they have more than 80 percent of the recommended pressure A clip on air chuck and enough air line to allow the employee to stand clear of the trajectory must be used The air line must have an in line valve with a gauge or a pressure regulator with a gauge pre set to the desired value A CAUTION All persons must stay out of the rim wheel and air blast trajectory when inflating a tire YOKOHAMA ie TRUCK TIRE BASICS GENERAL PROCEDURES FOR MULTI PIECE AND SINGLE PIECE RIMS WHEELS DURING VEHICLE OPERATIONS Do not overload tires or rims wheels Ensure that the combination of load a
20. tires only when in a restraining device Tires with over 80 percent of the recommended pressure may be inflated on a vehicle if a clip on air chuck is used with a regulated air line long enough to allow the employee to stand outside the trajectory 6 When a tire is being partially inflated without using a restraining device inflate only to a pressure sufficient to seat the tire bead onto the rim ledge not to exceed five psi 7 Tires must not be inflated on the floor or where any other solid surface is within one foot of the tire s sidewall 8 When inflating a tire in a restraining device all persons must stand clear of the trajectory 9 Tires must not be inflated to more than the inflation pressure molded on their sidewall or the maximum pressure of the rim wheel used unless a higher pressure is recommended by the manufacturer 10 After tire inflation inspect the tire and rim wheel components while still in the restraining device to ensure they are properly seated and locked If adjustment is required the tire must be completely deflated by removing its valve core while the tire is still in the restraining device before the adjustment is made Never attempt to correct the seating of side and lock rings be hammering or forcing the components while the tire is inflated 1 1 S Never rework weld braze or otherwise heat cracked broken or damaged rim wheel components If you cannot identify the rim or rings by si
21. training if needed to ensure all employees maintain their proficiency Current charts or rim wheel manuals containing instructions for the type of wheels being serviced must be available in the service area RESTRAINING DEVICES OSHA requires that the employer provides a restraining device for inflating tires on multi piece wheels and tires on single piece wheels when not bolted onto a vehicle during inflation Each restraining device must a Be able to withstand the force transferred to it should a wheel rim separation occur at 150 percent of the maximum pressure for the type of tires and wheels being serviced b Be able to prevent the wheel rim components from being thrown outside or beyond the device or barrier once the assembly is placed inside the device c Be physically inspected before each day s use and after any separation of the rim wheel components or sudden release of contained air that can occur during a tire explosion Restraining devices that have any of the following conditions must be immediately put out of service Cracks at welds Cracked or broken components Bent or sprung components caused by mishandling abuse tire explosion or rim wheel separation Pitting of components caused by corrosion Any other structural damage that would decrease the effectiveness of the restraining device Should a restraining device be removed from service due to damage it cannot be returned to service until it
22. trucks THE EVIDENCE OF UNDER INFLATION had the steer tires set at Maximum Single Inflation Pressure 110 psi At nearly 100 000 miles the tread shows no irregular wear Heat build up in the casing is caused by the excessive flexing of the tires sidewalls and tread area The close up photos shows the abrasion across Good Wear the face of the tread where the Rib Punch Depression is seen This abrasion is evidence of excessive flexing in the tread area of the tire LF P468 TIRE 1 98 792 miles 110 psi e s S S E Good Wear LF P468 TIRE 2 98 792 miles 110 psi e s S S S E 5 Close up Rib Punch Close up Adjacent Rib Note abrasion pattern across Note little Tread Face Tread Face Abrasion pattem Two similar vehicles were tested at 90 psi At less than 50 000 miles the worn appearance was unacceptable and both drivers complained of excessive vibration Rib Punch RF P467 TIRE 4 48 130 miles 90 psi quvosino Rib Punch RF P467 TIRE 3 48 130 miles 90 psi a quvosino P YOKOHAMA 24 LONGER WEAR amp LOWER C YOKOHAMA TIRE INFLATION RECOMMENDATIONS The following load and inflation recommendations are provided for use on all Yokohama truck bus tires used in highway and other heavy duty operations The use of these guidelines will result in increased tire tread mileage fuel economy and casing durability while improving steering stability
23. 0 4205 4410 4525 4685 85 5557708225 8 4190 4379 4550 4875 4895 5065 520516 5400 551091 D 890 4119 4275 4410 4455 4610 4829 4915 5070H 7570H225 16PR 8 4550 4785 5095 5325 5555 5865 6095 6405 6635 634000 DINE 4190 4410 4685 4905 5115 5400 5610 5895 6105 6395H 295 75R22 5 S 4940 5155 5370 55108 5780 5980 61756 6379 681091 D 4540 4890 4885 50708 5260 5440 567516 5795 60058 295 80R22 5 SL D fase 5820 6110 6370 6635 6900 7185 7410 7675 D 4930 5160 5400 5645 5885 6130 6350 6570 6815 31580R225 578 S 7450 7705 80 5 8300 8555 8885 9125 9445 9610 10000 MY627W D 6140 6360 65 5 6855 7065 7830 7540 7805 7935 82250 315 808225 228 S 7450 776 8045 8300 8555 8885 9125 9445 9610 100000M Y778 D 6149 6360 6645 6855 7085 7830 7540 7805 7835 825560 285 75R24 5 S 49 5210 5420 58758 5835 6040 61756 6440 678094 oam 4799 4930 52058 5310 5495 567516 5860 617599 558082 10428 Load Range H Max Load Single 7830 Ib 123 PSI Dual 6945 Ib 123 PSI Wide Base Tubeless Tire Load Limits Ibs at Various Cold Inflation Pressures psi Tire pressure is minimum for the load Tire Size Designation 80 85 E 95 100 185 118 115 128 3265859255 5 6 7850 7650 8050 8230 8510 8820 9050 93701 425 85R22 5 8 8270 8740 9100 9379 9790 10100 10500 10700 114000 445889225 8 9090 9480 9870 10200 10600 11000 11400 11709 123000 Tire load limits at various inflation pressures are based upon and Rim Association TRA standards and tab
24. 3 219 18 101 148 60 3042e80 2778080 13800550 12600550 65 YOKOHAMA HL HH Hi Ge Highway Steel Belted Radial All Position The Y735B is designed to provide outstanding handling and traction for heavy duty light truck applications Original equipment on the Mitsubishi Fuso FG the Y735B delivers traction and handling for on highway applications FEATURES AND BENEFITS Outside Tread blocks provide extra traction on snow and mud covered roads Center Tread Blocks are specially arranged to give improved stability and handling Constant Contact Center Blocks reduce tread noise Load Range E Construction provides extra load carrying capacity OE FITMENT ON Mitsubishi Fuso FG 06 ply tine PMSIZE INFLATED DIMENSIONS wen LOADED DIMENSIONS MAX LOAD CAPACITY AT tine size PART aus WEleHT MEAS ALT OVERALL OVERALL peprH SECTION STATIC RPM E NUMBER uni 88 WIDTH DIAMETER 1 32 WIDTH RADIUS LB PSI LB PS KGKPA KG KPA NCH INCH INCH INCH SINGLE DUAL SINGLE DUAL 7586 756 e 49 80 55 70 85 2 18 84 148 2755080 2470080 12500550 11200550 YOKOHAMA ee TYO25 CK COMMERCIA Highway All Steel Radial All Position The TY025 is a sure footed traction tire for the roughest highway conditions Its wide shoulder ribs add miles and tread life Handling and ride comfort are provided by its straight five rib tread design FEATURES AND BENEFITS Computer designed Uniform Profile maintai
25. 30000720 27250720 75 1 845 725 15H 4M 85 750 108 438 101 5 476 mem 66100120 250680 3022 2 SmartWay Verified 1042R replaces Michelin XZE Goodyear G149 Bridgestone R260 RIM SIZE INFLATED DIMENSIONS un LOADED DIMENSIONS MAX LOAD CAPACITY AT TIRE 805 PART RATING WEHT MEAS ALT OVERALL OVERALL Depth SECTION STATIC RPM OOLO NELATION PRESSURE MAX NUMBER LAJ Bg WIDTH DIAMETER 1 32 WIDTH RADIUS LB PSI LB PSI KGPA KGPA SPEED UNCHI UNCHI NCH ONCH SINGLE DUAL SINGLE DUAL MPH 295GnH225 74734 mm 134 am 8 118 418 20 180 993 502 78300123 6945123 zeen 31500850 75 9225 WA we e 875 600750 81 381 7 99 179 546 45400105 43000105 20600720 19500720 5 125 wm we 7 675825 100 404 18 114 187 520 56756115 53556115 25750790 24900790 75 2225 74733 18H 1 5 am 8 118 427 20 130 98 490 73900120 67800120 33500690 30750630 75 RYO23 TRUCK STEEL RADIAL Regional Highway All Position The RYO23 is available in both broadline sizes as well as 19 5 sizes for specific applications All sizes have a five rib tread design The semi rounded shoulder treatment reduces shoulder tearing and step wear and provides lateral stability and water dispersion The RYO23 series is designed for city and regional applications and has improved performance and traction FEATURES AND BENEFITS Sidewall Abrasion Guard reduces damage to sidewall caused by curbing Five rib Tread Design with semi rounded shoulder reduces potential for sho
26. 65 75R22 5 TL 255 70R22 5TL He4 W20 275 70R22 5 TL Hee 295 75R22 57L 6 28 295 80R22 5 TL 285 75R24 5TL Gg S15 80R22 5 TL 23 Me1 385 65R22 5 TL JA9 3 4258858525 TL 19 u23 445 858225 TL L Le4 YOKOHAMA TRUCK AND BUS RADIAL TIRE SALES AND REFERENCE GUIDE YOKOHAMA TIRE REPLACEMENT GUIDE YOKOHAMA HIGHWAY SERVICES 101ZL RY617 RY083A SmariWqy SmartWay Verified Verified C4 erg C4 environment mmm environment Michelin XZA 3 XZA 3 XZA 1 XZE 2 Goodyear G395 G397 6397 G661 Bridgestone H287 R280 R287 R227 R260 RY587 TY287 RY587 MC RY103 Y785R SmartWay Verified Jed Michelin XDS2 XT1 XZA XZA Boodyear 6622 6316 6189 6149 Bridgestone M724F R195 R250 R187 68 YOKOHAMA 104ZR RY023 703ZL TY527 SmartWay Verified XZE XZA XZE XD4 XDA HT XD4 XDA HT 6149 6169 6372 6338 8680 8550 M726EL M726EL M728 LY053 501ZA MY507 MY627W environment Strainer ay Minimization XDY 3 XDY 2 XZY 3 XZUS G177 6 88 6 88 G287HSS L320 M843 M843 M860 TY517 TY577 TY517 MC TY303 SY767 SmartWay martWay Verified Verified XD4 XDA HT XDE MS XDN2 6372 6362 6182 6305 M728 M720 M726 M720 M711 M725 Y773 MY547 MY507A RY253 emm XZY 2 XZY 4 XZL XTE 2 G287 6178 G286ASS M844 MB44F R194 YOKOHAMA 7 TABLE OF CONTENTS The Yokohama Difference Zenvironment STEM STEM 2 and MC Truck Tire Basics
27. 720 RIM SIZE INFLATED DIMENSIONS ppap LOADED DIMENSIONS MAX LOAD CAPACITY AT TIRE alzE PART RATING Welgut MEAS ALT OVERALL OVERALL Gi SECTION STATIC RPM EE MAX NUMBER LR LBS WIDTH DIAMETER 1 32 WIDTH RADIUS LB PSI LE PSI KGKPA KGKPA SPEED INCH INCH INCH INCH NCH SINGLE DUAL SINGLE DUAL MPH 257185 30319 1 7 878 80 87 20 20 94 pn e aoas 3 5985 16800660 15500660 75 288708185 am 1 8 9 79 85 103 544 2a 112 160 82 80206110 4575010 23000760 21200760 75 38570R195 am 46H 99 8 75 90 114 354 a 121 14 5m em 60050120 29000890 2725060 5 288708225 am 18 98 750 82 100 270 108 173 563 55100120 50700120 e 230006900 75 29575225 2021 1 5 12 am 85 14 407 28 193 190 an 6175010 5675010 28000760 25750760 75 1 2023 1 8 mm 85 7 114 420 28 122 88 2 61750105 oam 28000720 26500720 75 38575R245 2028 1 5 195 8 108 420 28 117 127 e 8126110 song 28000760 25750700 75 1 45 2094 we 145 85 750 14 122 8 474 ee 8059 05 30000720 27250720 75 YOKOHAMA 46 SY767 TRU 87787 replace TIRE SIZE 1155 118225 1145 118245 47 PART NUMBER 76702 76722 76704 78724 EEL RADIA PLY TIRE RATING WEIGHT LR 088 4 129 16H 129 4 196 16H 136 YOKOHAMA RIM SIZE MEAS ALT INCH 825 75 825 75 825 75 825 75 On Highway Drive Axle Operations The SY767 is designed to provide exceptional traction capabilities throughout all four seasons Fea
28. 830 27250630 75 29575H295 51725 18 a am 85 14 407 28 184 491 se 66100120 60050120 30000630 27250630 75 mes ap 16 48 8 7580 ou 420 28 180 196 4g 61750105 5840105 28000720 26500720 75 11825 8122 16H 45 oe 78 mu 420 28 180 186 437 mag 60050120 30000830 27250630 75 28575R245 81703 we 125 8 108 420 28 118 197 42 8175010 56750110 28000760 25750760 75 1 845 SUD 16 485 825 78 04 440 28 182 8 474 es 60050105 30000720 27260720 75 1 845 am mm 4839 85 7580 mu 440 28 102 6 474 71600120 eem 3250g830 men 75 MS SmartWay Verified 45 YOKOHAMA TYSOS3 On Highway Drive Axle Operations The TY303 is a deep tread drive axle workhorse for on highway operations Its advanced shoulder lug groove pattern promotes flat even treadwear throughout the long life of the tire The special tread compound not only extends tire mileage but also delivers increased fuel economy Precise casing construction allows excellent retreadability The TY303 is ideal for 2 or 3 axle tractors and is available in low profile sizes FEATURES AND BENEFITS Special Tread Compound generates fuel efficiency and long tread life Advanced Arrangement of Shoulder Lug Grooves promotes flat even treadwear Rib block Tread Design combined with a 28 32 Tread Depth provides low rolling resistance outstanding traction on snow and muddy terrain and excellent durability TY303 replaces Michelin XDE MS Goodyear G182 Bridgestone M
29. Apply a nonflammable rubber lubricant to both rim wheel bead seat areas to ease demounting and eliminate tire damage Demounting tires from single pieced rims wheels must be done only from the narrow ledge side of the rim wheel Care must be taken to avoid damaging the tire beads TIRE MOUNTING AND INFLATION FOR SINGLE PIECE RIMS WHEELS The rim wheel must be inspected prior to tire mounting Check all metal surfaces for rust or corrosion build up cracks in metal and bent flanges Rims that are pitted from corrosion broken or cracked must not be used and must be rendered unusable and discarded Do not under any circumstances attempt to rework weld heat or braze any rim wheel that is cracked broken or damaged Clean the bead seat areas and rim flanges thoroughly to remove any dirt surface rust scale and rubber build up prior to tire mounting and inflation Damaged and leaky valve stems O rings and grommets must be replaced Itis a good practice to paint steel rims wheels with fast drying paint after the wheels are cleaned to prevent new rust from forming or use a rust preventative made especially for rims wheels Allow the paint to dry A filter installed on the air inflation equipment to remove the moisture form the air line also prevents most corrosion Theses filters should be checked periodically to ensure that they are working properly and air tanks should be drained on a regular basis The size and type of both the tire and t
30. CT RATIO R RADI manea SINGLE DUAL cree METRIC SIZES 255 70 R 525 6 188 184 M 10 00 R 20 H 148 142 L CONVENTIONAL 44 00 R 225 H 146 148 D sizes 11 00 R 15TR H 144 142 800 R 17 5HC F 112 117 L 10 00 R 20 ML F 1100 8 22 5 ML F TR Indicates a tire for rims having a specified rim diameter plus 156 or 250 HC for use on HC rims ML Mining and Logging tires YOKOHAMA 10 TRUCK TIRE BASICS DOT TIRE IDENTIFICATION CODES Understanding tire DOT codes is important in cases of product recall warranty claims and tire record keeping By utilizing these codes a fleet can simplify its tire records and tire identification procedures All new tires sold in the United States must have a DOT number cured into the lower sidewall of one side of the tire This code has a standard format which has been designated by the federal government NEW TIRE IDENTIFICATION NUMBER Due to the nature of DOT tire codes hundreds or even thousands of tires can have the same code The manufacturing date of the code is changed weekly usually on Sunday at most tire manufacturing plants TIRE SERIAL NUMBERS Some manufacturers cure a specific serial number into each tire they make which identifies specific tires This optional number is located on the sidewall opposite the DOT number and should not be confused with the DOT number which is required by law The meaning of the optional serial number in many cases is known only to the
31. EAVY SPOTS RUN OUT IMBALANCE Excessive radial and or lateral movement resulting from tire or wheel rim non uniformity improper bead seating or improper match mounting of the tire and wheel rim assembly This can be corrected by measuring the amount of tire and wheel rim assembly run out lateral and radial with a gauge and replacing the component having excessive run out or remounting the tire correctly RADIAL LATERAL Place Checking Gauge Here Place Checking SN l Gauge Here Place Checking Gauge Here Place Checking Gauge Here YOKOHAMA VEHICLE IMBALANCE Vibration due to faulty vehicle components other than the tire or wheel rim assembly such as hubs brake rotors and drums and drive lines Correction requires checking for any irregularities and replacement as required SOURCES OF IMBALANCE Two sources of imbalance occur in tires heavy or light spots in the tire and radial or lateral run out Imbalance also can be caused by Variations within the wheel such as thickness and welds Rotor and axle imbalances HEAVY OR LIGHT SPOT IMBALANCE There are two types of imbalance caused by heavy or light spots static and dynamic Static Imbalance Occurs when there is a heavy or light spot in the tire so that the tire won t roll evenly and the tire wheel assembly undergoes an up and down movement Dynamic Imbalance Occurs when there is unequal weight on both sides of the tire wheel assembl
32. FEATURES AND BENEFITS Wide Twin Straight Grooves provide outstanding water evacuation Sipes located between the blocks helps control block stiffness enabling long even wear and enhanced traction over the life of the tire L III Open Shoulder Block Design provides increased wet and dry traction Three Pitch Variation reduces noise at the shoulder for a comfortable and quiet ride Unique Center Block Shape enables increased all season traction OE FITMENT ON Isuzu NQR 04 10 ae 1 4 a em Minimization TY287 replaces Michelin XDS2 Goodyear G622 Bridgestone M724F pry nap PMSIZE INFLATED DIMENSIONS wu LOADED DIMENSIONS MAX LOAD CAPACITY AT tine size PART 6 WElGHT MEAS ALT OVERALL OVERALL DEPTH SECTION STATIC RPM 1 MAX NUMBER uni 88 WIDTH DIAMETER 1 32 WIDTH RADIUS LB PSI LE PSD KGKPA KBKPA SPEED CINCH NH INCH INCH ONCH SINGLE DUAL SINGLE DUAL MPH ge570R195 em 1 m 87 80 87 87 29 19 94 150 60 3540005 315685 16500660 15500660 75 YOKOHAMA 48 RY587 mRY587 MIC TRU EEL RADIA Highway Line Haul Trailer Position The latest in Yokohama technology has been brought to the long haul trailer market with the RY587 With a unique combination of long even original tread mileage lower fuel consumption outstanding durability and trouble free operation the RY587 is the perfect choice for today s long h
33. LOAD AND INFLATION CHARTS A good starting point for air pressure maintenance in regional and highway tractor trailer operations is provided in the following example lf tire wear patterns or casing durability issues suggest tires are set at incorrect air pressures actual vehicle weightings will be required 25 YOKOHAMA AN EXAMPLE Recommendation for an 80 000 Ibs GVW operation Vehicle 6 X 4 tractor 48 foot long box trailer STEER 12 000 Ibs DRIVE 34 000 Ibs TRAILER 34 000 Ibs zum Recommended Cold Inflation Pressures requires truck to be parked 3 4 hours STEER DRIVE TRAILER TIRE SIZE SINGLE DUALS DUALS 28575R22 5 14PR TO ps 0 80 285758245 14PR 110 psi 80 90 118525 98 405 psi 90 psi 118543 1488 100 psi 80 80 psi Steer tires in the first three examples are set at max cold inflation In all examples the drive and trailer duals are set at 80 psi plus 10 psi for compensation between airing NOTE Never bleed excessive air from a hot tire ACTUAL VEHICLE WEIGHTINGS Actual vehicle weightings is the most accurate method of determining a fleet vehicle s recommended air pressure It should be used in non standard vehicle configurations and on vehicles which the tire wear pattern suggests an improper air pressure specification 1 Determine actual tire loads Weigh several tractor trailer vehicle combinations that best represent actual maximum load conditions for
34. Longer Wear and Lower Costs Load Inflation Charts 1 2 5 22 23 32 33 34 Truck Steel Radial Tires Line Haul Steer All Position RY083A Regional Steer All Position 103ZR 104ZR RY023 Line Haul Regional Drive Line Haul Trailer and Other RY587 RY587MC Wide Base MY507A want RY253 Light Truck Commercial Tires Highway All Position Replacement Guide Original Tread Depth YOKOHAMA smar choic UFOENCYTAUAARUTY Set Ub Yokohama is dedicated to your success Our industry leading tire lineup has helped us build and maintain many successful partnerships for nearly 100 years And when it comes to the business and performance requirements most critical to today s fleets Yokohama leads the industry by offering a winning combination of Longevity Efficiency Availability and Dependability Longevity Featuring durable casings and deep original tread depths Yokohama tires are engineered to last Efficiency Our dedication to technology results in tires that deliver incredible fuel efficiency Availability An expansive dealer network provides comprehensive coverage across the country Dependability Yokohama tires are recognized industry wide for their durable casings an exceptional retreadability Yokohama s leadership in these areas makes us the only tire supplier to deliver so completely on these four essential attributes That s why we re the S
35. NS un LOADED DIMENSIONS MAX LOAD CAPACITY AT Tine size PART RATING WEIGHT MEAS ALT OVERALL OVERALL DEPTH SECTION STATIC RPM CORO UNEEATION PRESSURE MAX NUMBER 5j LBS WIDTH DIAMETER 1 32 WIDTH RADIUS LE PSI LB PSI KGKPA KGKPA SPEED ma NCH NCH INCH NOH SINGLE DUAL SINGLE DUAL MPH 2525 mm we mm 900 825 ma 408 2 125 191 50 8075010 56750110 28000780 25750760 5 18225 me e mm 85 750 493 2 101 187 484 61750105 mem 29000720 26500720 5 257455 77 0 6 mm 8 414 422 2 120 198 48 8175010 56750110 28000760 25750760 75 ma mm e 12 825 750 43 2 182 207 o 68109105 mem 30000720 27250720 25 Smart Way Verified YOKOHAMA 42 TRUCK STEEL HADIAI On Highway Line Haul Drive Axle Operations The 1527 MSC drive axle tire meets today s modern fleet challenges for supreme performance and long life Every feature of the TY527 is designed to maximize original tread life durability retreadability and to reduce rolling resistance Together these features make the 1527 MSC the premium drive tire choice for fleets looking for the long haul payoff during the entire life of the tire FEATURES AND BENEFITS Deepest Original Tread Depth 32 32 of any line haul drive tire in the industry providing long original tread wear without sacrificing high speed durability New Cap Base Compound fights heat that might otherwise be generated by the deep tread Distinctive Directional Tread Design promot
36. ONS en LOADED DIMENSIONS MAX LOAD CAPACITY AT TE size PART patine welGHT MEAS ALT OVERALL OVERALL SECTION STATIC RPM EE NUMBER oi LBS WIDTH DIAMETER 1 32 WIDTH RADIUS LBPS or KGKPA KGPA ONCH ONCH ONCH ONCH ONCH SINGLE DUAL SINGLE DUAL 7085 aan 85 50 65 77 264 E 85 96 78 2040805 1820005 9250450 82660 758665 265 e e 60 60 70 84 as 13 93 6 e 3175895 ae 14400650 13700650 63 Y ZP LIGHT TIRE SIZE 750818 88175 CK COMMERCIAI Ce ape LE NUMBER RATING WEIGHT MEAS ALT L A 88 28546 19 80 80 725 WE 40 80 525 675 YOKOHAMA Highway All Steel Steel Belted Radial Rib All position radial for in city haulers such as package delivery vehicles oil delivery vehicles light duty vans and pickups etc The Y785R has proven that it is an excellent tire in its class and that it delivers good fuel economy Its straight five rib tread design promotes even treadwear and together with the wide shoulder ribs delivers a smooth ride easy handling and improved shoulder step wear It is manufactured in a number of specialty sizes for special applications including low platform heavy load and on off road FEATURES AND BENEFITS Straight Five rib Tread Design with four wide grooves reduces stone retention and provides a smooth ride improved handling and superior wet traction Wide Shoulder Ribs reduce shoulder step wear Extremely Fuel efficient Com
37. PM ER MAX NUMBER LR LBS WIDTH DIAMETER 1 32 WIDTH RADIUS LBPSI rg vue KGKPA SPEED INCH NCH ONCH ONCH INCH SINGLE DUAL SINGLE DUAL MPH 825 ep mn mmm a 20 D 90 83 65 emm wes es 28860 ORR en e a 750 mum 107 ER 118 e 82 gem spe aen 2892 6858 en wm mmm 87 25 D na 87 22 man wees mes 266 e muss en 85 eme 81 20 5 38 83 85 mono eme mem emm mm en mn 8 8 78 88 25 v 98 58 a emm amoeno 2289 men a msn mn mm ven 107 3 8 117 98 S7 rem 2260 on een e pn 898 Bm2m 81 a i 38 o se een eran zm 20080 75 me TED 4 85 8 25 88 i i 37 98 52 4509105 map zem emm ms Se we 9 789 em 8 80 6 108 87 20 em men 2290 26922 51 YOKOHAMA On and Off Highway Drive Axle Operations An aggressive drive axle radial for off road use the LY053 is ideal for use in logging construction or rock and quarry operations with some very short on highway use possible The LY053 is an excellent choice for on and off road surfaces It is designed primarily to deliver good tire mileage in applications that require outstanding traction and cutting chipping resistance FEATURES AND BENEFITS Aggressive Lug Design with Large Blocks at tread center provides excellent traction and braking on rough roads with mud or gravel and is self cleaning for ease of maintenance Wide Tread Footprint combined with a 31 32 tread depth ensures excellent
38. R LBS mu vores am 19 e 85 90 Y773 MY547 TRUCK STEEL RADIAL profile radial tires for on and off highway tires against stone penetration and provides Buttressed Shoulders give full as well as excellent traction NOTE Atire upgrade alone does not upgrade the carrying capacity of the front ae d the vede To lagay and safely carry 20000 ls on the front xe requires front end components Wheels and tires to all e rated at 20 000 55 Wheel ratings are stamped on the wheel e capacities can be verfed by checking the veice line sheet or contacting he axe manufacturer with the axle tag number Carrying capacities of tires are marked on the sidewall ATONS The 22 ply rated 773 is appropriate for use on vehicles with front 8 9 capacities of ihr 18 000 Is or 20000 be The design rim width is 9 00 inches for this tire Maximum air pressura is 130 psi for hs tire SUMMARY The legal and maximum carrying capacity in these applications is dependent on the lightest rated item tire wheel or front suspensin teeing component mm Operational Spes 65 mph Strainer 6 Y773 replaces Michelin XZY 2 XZY 4 Goodyear G287 Bridgestone M844 INFLATED DIMENSIONS LOADED DIMENSIONS MAX LOAD CAPACITY AT OVERALL OVERALL pepTH SECTION STATIC RPM PRESSURE MAX WIDTH DIAMETER 1 3g WIDTH RADIUS 187 LB PSI KGKPA KGKPA SPEED ONCH NCH INCH ONCH SINGLE DUAL SINGLE DUAL MPH 23 e
39. RE BASICS RETREADING Operational costs are steadily on the rise To combat this trend truck tire retreading continues to be a valuable practice in the industry Today a tire must not only exhibit exceptional original treadwear but afford multiple retread opportunities Recent technological advancements in retreading help to accommodate multiple retreads to significantly extend tire life and therefore reduce tire expense Yokohama understands the value of retreading and concentrates on designing radial truck tire casings that will continue to perform well after the original treadlife Retread manufacturers nationwide have consistently rated Yokohama casings among the best in the industry This coupled with one of the best casing warranties available strengthens Yokohama s commitment to quality dependability and value TIRE COMPOUNDS One of the challenges faced by the tire industry had been how to produce a high quality durable fuel efficient tire that does not sacrifice traction Focusing our research and development efforts in this direction we broke industry barriers and proved in independent tests that Yokohama tires successfully match the fuel efficiency of the other leading brands Yokohama has invested millions of dollars in researching and developing new rubber compounds and tread designs to meet the increasing demand for specialized applications Each Yokohama tire is a combination of more than ten different rubber
40. SURE NUMBER LR LBS WIDTH DIAMETER 1 32 WIDTH RADIUS LB PSI LBPSI KG KPA KG KPA mon INCH INCHY INCH ONCH SINGLE DUAL SINGLE DUAL 278175 2098 16 5 80 875 81 304 18 88 141 694 emm 35300105 17000720 16000720 2575175 30365 e 56 80 875 81 204 18 88 141 65 amoo 34200100 16008690 15500690 g15708175 S038 16 56 80 875 80 297 19 187 700 3 5910 31950110 11508760 14500760 YOKOHAMA s4 Y742S Lanmen mLHEELHEHHH Highway Steel Belted Radial All Position The rugged steel belted construction conquers snow and mud in and out of the trenches With its heavy duty two ply steel belts the Y7425 delivers long mileage and handling stability FEATURES AND BENEFITS Aggressive Block Design for an iron grip in snow and mud Buttressed Shoulder Block Design enhances traction Open channel Self cleaning Tread cuts through mud and snow Long mileage and high traction engineered with a special tread compound Polyester Body Plies increase driver s comfort on the road ply tine PMSZE INFLATED DIMENSIONS rap LOADED DIMENSIONS MAX LOAD CAPACITY AT tine size PART patine wg MEAS ALT OVERALL OVERALL pnEprH SECTION STATIC RPM DOLD INELATION PRESSURE NUMBER LR 88 WIDTH DIAMETER 1 32 WIDTH RADIUS LB PSI LB PS KG KPA KG KPA INCH NCH NCH INCH ONCH SINGLE DUAL SINGLE DUAL 7085 729 o 271185 50 88 78 8 8 88 138 er 2047065 1820065 9250450 8250450 258816 74250 1 49 85 60 70 8
41. T mam weg Y773MY547 TY597 mem du 1053 RY103 mee pe wem H CO RY253 RY108 RY103 mees 73 547 HYS RY253 Y7B5R Y785R 7858 RY103 9 YOKOHAMA TRUCK TIRE BASICS TIRE IDENTIFICATION The following letters may be used as part of truck tire size designations to identify the type of service or rim for which the tire is designed IT Identifies a light truck tire for service on trucks buses trailers and multipurpose passenger vehicles for normal highway service and to be used on a five degree tapered bead seat or on a 15 degree bead seat rim TR Differentiates certain tires from passenger car light truck and other vehicles which use similar designations but are designed to fit rims of different bead seat diameters ML identifies mining and logging tires used in intermittent highway service MH Identifies tires for mobile homes NHS Designates tires not for highway service ST Indicates special tires for trailers in highway service HC Designates tires for heavy trucks having 15 degree tapered bead seat rims of 17 5 diameter designated HC The HC suffix differentiates these tires from light truck tires 17 5 bead diameter EXPLANATION OF TRUCK TIRE DESIGNATIONS Examples of light truck and commercial truck tire size designations LOAD TIRE TYPE TIRE SIZE DESIGNATION RIM IDENTIFICATION OPTIONAL SERVICE DESCRIPTION DIAMETER NOMINAL SIZE NOMINAL CONSTRUCTION CODE LOAD INDEX WIDTH MM ASPE
42. Tire Size or Matrix Tire Type Etc Manufacturer Date 0 4 Spaces Optional NHTSA Retreader Retr ad Retr ad Manufacture ID Code Rotreader Standard Format THIS CODE MUST APPEAR ON THE LOWER SIDEWALL ONE SIDE OF THE TIRE ADDITION TO NEW TIRE SERIAL NUMBER NOTE DON T USE SELL OR RETREAD TIRES IF MANUFACTURER S DOT MARKING HAS BEEN REMOVED OBLITERATED OR BRANDED OVER Tires on which the tire manufacturer s DOT symbol and or the accompanying tire identification number has been removed must not be used or sold in the United States The DOT marking consists of the DOT symbol followed by a 10 or 11 character tire identification number Removal branding over or obliteration of any portion of this DOT marking indicates that the tire is no longer suitable for any use on or off the road Some tires do not have DOT markings Federal regulations permit the following Those who retread tires for their own use and not for resale are not required to mark a tire identification number on those tires Tires which are manufactured or retreaded exclusively for mileage contract purchasers are not required to bear the tire s identification number if the tre contains the phrase for mileage contract use only molded into or onto the tre sidewall The DOT symbol is not required for retreaded truck tires However a retreader s tire identification number is required Imported truck tire casings which do not have an
43. a np 97 42 1000013 eme 4500890 37450900 e M5 e 20 126 an e 7300120 67808120 3506 0 30750030 e MYV547 replaces Michelin XZY 3 XZY 2 Goodyear G286 Bridgestone M857 M843 R296 INFLATED DIMENSIONS LOADED DIMENSIONS MAX LOAD CAPACITY AT COLD INFLATION PRESSURE OVERALL OVERALL DEPTH SECTION STATIC RPM MAX WIDTH DIAMETER 1 32 WIDTH RADIUS LBPS org KG KPA KG KPA SPEED INCH INCH INCH INCH SINGLE DUAL SINGLE DUAL MPH 183 484 2 137 mu mm 88200110 80500110 40000758 36510758 e YOKOHAMA ss MY507A TRUC EEL RADI Wide Base On and Off Highway All Position The MY507A is designed to provide outstanding durability and tire life for wide base on and off highway applications Equipped with the latest Yokohama technology the MY507A extends casing life in tough applications FEATURES AND BENEFITS High Strength Belt Construction for added durability in off highway applications Stone Ejectors in tread grooves for added durability and retreadability STEM 2 Casing Profile for internal strain reduction and longer casing life Special Anti chip Tread Compound for on and off highway durability Additional Steel Reinforcement in the bead area gives added protection against bead damage Funnel shaped Grooves provides improved traction in off highway applications MV507A replaces Michelin XZL Goodyear G178 Bridgestone MB44F TIRE SIZE 285 858225 42558225 445 858225 PART NUMBER
44. aining tread wear is a poor gauge of tire serviceability on these vehicles Over time the bonds between the rubber and reinforcing materials deteriorate regardless of remaining tread Unserviceable tires should be scrapped by cutting beads or Cutting through sidewalls to prevent reuse by unsuspecting persons YOKOHAMA ss LOAD INFLATION PRESSURE TABLES Medium Truck Tube Type Tire Load Limits Ibs at Various Cold Inflation Pressures psi Tire pressure is minimum for the load Tire Size Designation 80 85 80 85 189 185 118 115 128 155 138 708188 S 20 2690 2800 2108 3040 3170 3305F D 240 2550 2640 27556 2865 2975 3085F B2SRIBTRMPR 8 3080 3200 3340 3470 3590 27508 3860 3970 40808 D 2930 3040 3150 3260 2580 3525P 3635 3745 3880 BP5RIBIRAEPR 8 4125 4275 4420 4565 4700 4835 497001 D 4080 4215 4340 4485 4590 4710 68901 100R15TR s 4170 4370 45408 4715 4890 50708 5270 5470 emm 59050 p 3980 4130 43008 4470 4840 4808 4990 5175 5355H 54 00 8220 8 2730 3890 4080 4235 4390 45908 4875 4810 490 a 8550 3690 2880 4005 4150 42008 4425 4550 48758 1200824 8 6960 7280 7580 80506 8310 8570 882001 9100 93709 p 6650 6810 7160 78808 7819 7830 805001 8300 65400 Operating speed less than 55 MPH Light Truck Tube Type Tire Load Limits Ibs at Various Cold Inflation Pressures psi Tire pressure is minimum for the load Tire Size Designation 55 78 75 81 85 80 85 180 72818 8 204010 2590
45. al mate at equal inflation pressures RADIAL TIRE SIZE RADIUS INCHES AL 57 DIAMETER INCHES CIRCUMFERENCE INCHES DOUT D Determine the actual difference in diameter by measuring the tires with a steel tape at least 24 hours after initial inflation Matching should be done before installing tires on the vehicle However after tires are installed measurements can be made by a straight edge stationary tire meter or large square To avoid excessive or irregular treadwear and damage to differential duals on tandem drive axles should not have an average difference in diameter of more than 1 4 between the two axles whatever the tire size Proper spacing between duals minimum dual spacing is necessary for optimum tire performance Consult tire or vehicle manufacturer s literature or representative for recommendations If chains are used particular care must be taken to assure adequate clearance between loaded tires to avoid damage from chains 13 YOKOHAMA TIRE MIXING There are many different truck tire sizes and constructions available today The various radial and bias tire constructions and or sizes should not usually be mixed on the same vehicle Using the same tire size and construction that was specified as the original equipment for that vehicle will normally produce the best performance from the vehicle and the tires Improper mixing of tire sizes and constructions can cause irregular rapid tire wear tir
46. and overall vehicle handling Included within this Sales and Reference Guide are the current tire load inflation pressure tables for all Yokohama truck bus tires These standards are for Yokohama tires only and should be exclusively used for the recommended tractor trailer inflation pressure set ups as described below There are two recommended ways to correctly determine and set operational inflation pressures for a straight truck or a tractor and trailer combination in a given fleet Yokohama tire load inflation charts Actual vehicle weight Field testing of Yokohama truck bus tires has determined the following In General our tires perform best at higher inflation pressures Steer Tires in many fleets steer tires will require the maximum inflation pressure to carry the steer axle load Drive Tires on 6 X 4 tractors field and laboratory testing has proven that irregular wear on drive axle tires is minimized by maintaining the inflation pressures prescribed in the following tables However many fleets will add 10 psi to compensate for pressure loss between airings Trailer Tires should be set at pressures corresponding to actual tire loading An additional 10 psi cold inflation is recommended to compensate for pressure loss between airing for all tire positions Under no circumstances should a Yokohama tire be inflated lower than the lowest pressure on the chart for a given tire size and ply rating YOKOHAMA TIRE
47. ass FEATURES AND BENEFITS 23 32 Original Tread Depth is the deepest in its category for extremely long tread life and high speed durability coupled with excellent fuel economy The unique Serpentine Groove Pattern is designed to reduce premature shoulder step down and irregular wear further preserving overall tread life Our All New Compound incorporates Zenvironment technology which produces stronger more pliable rubber that improves treadwear and provides low rolling resistance for better fuel efficiency we environment 103ZR replaces Michelin XZE 2 Goodyear BBB1 Bridgestone R260 RIM SIZE INFLATED DIMENSIONS pepp LOADED DIMENSIONS MAX LOAD CAPACITY AT szE PART patina welguT MEAS ALT OVERALL OVERALL DEPTH SECTION STATIC RPM DER MAX NUMBER uni LBS WIDTH DIAMETER 1 32 WIDTH RADIUS LB PSI LBPSI KGKPA KEKPA SPEED UNCHI UNCH mu ONCH SINGLE DUAL SINGLE DUAL MPH 9575R225 mam 146 e 900 825 20 ns 23 188 188 am 815910 56750110 28000760 27250720 25 89575R825 73721 16H a 800 85 5 404 28 188 188 517 ema eem 30000060 27250630 75 mens mm 148 123 o 780 9 47 28 180 195 500 61750105 55615 28000750 26500720 2 1825 73722 184 mm 85 750 108 417 28 180 185 500 mea 605120 30000830 27250630 75 2BS7SROAS 78709 146 124 85 828 108 a7 28 118 185 500 61750110 56750110 28000750 25750780 75 11R245 7870 148 m 828 750 108 438 28 121 205 476 6509 5 oe
48. aul trucking fleets FEATURES AND BENEFITS Ultra long Mileage is the hallmark of this hard working trailer tire This state of the art tire will provide thousands of trouble free miles use less fuel and provide protection from scuffing Stress Wear Control Grooves SCG enable long even wear combating shoulder step down wear The SCG minimizes pressure at the edge of the tread resulting in a dramatic reduction of free rolling wear Built in Stone Ejector Ribs prevent stones from reaching the bottom of the groove where damage can occur Five rib Directional Design allows for effective water evacuation from under the tread reduced hydroplaning and increased wet traction Wet grip is enhanced with extra deep sipes RY587 now available with MC technology for even better fuel efficiency SmartWay Verified E RY587 replaces Michelin XT 1 Goodyear G316 Bridgestone R195 py Ting RMMSIZE INFLATED DIMENSIONS pepp LOADED DIMENSIONS MAX LOAD CAPACITY AT size PART atin weight MEAS ALT OVERALL OVERALL DEPTH SECTION STATIC RPM EE MAX NUMBER Toi 88 WIDTH DIAMETER 1 32 WIDTH RADIUS LBPS LBPS KGKPA KGAKPA SPEED mu mu INCH INCH ONCH SINGLE DUAL SINGLE DUAL MPH 29575225 MS 123 am 85 na 398 m 124 185 525 61750110 5675e110 20950 52950 25 275 25 MS mm am am 114 28 13 124 185 525 6175010 56750110 28000760 25758760 2 188225 MS 140 85 75 99 410 m 120 193 56 61750105 5840e105 28006720 26508720 25
49. customers with ride complaints especially those with original equipment tires should be serviced according to Rubber Manufacturers Association RMA guidelines and this Yokohama bulletin RMA publications can be obtained directly by calling 202 682 4800 www rma org Ask for Care amp Service of Truck Tires publication To properly diagnose vibration complaints it is important to first understand the types and causes of imbalance VEHICLE RELATED FACTORS Wear rattle or component damage may cause vibration resonance Drive mechanism Chassis Transmission Steering Axle shaft Uniformity Tire manufacturing TIRE RELATED FACTORS Clutch Rear suspension Propeller shaft Tire inflation Tire wear Wheel run out Suspension Engine Engine body Engine Intake exhaust mounting system system Front suspension VIBRATION Road surface Concentric tire mounting Flat spot Road amp environment Tire setup TIRE USAGE FACTORS YOKOHAMA 20 TRUCK TIRE BASICS TYPES OF IMBALANCE STATIC IMBALANCE Vertical movement resulting from heavy or light spots in a tire Can be corrected using either a bubble or spin balancer DYNAMIC IMBALANCE Lateral movement wobble or shimmy resulting from unequal weight on both sides of the tire and wheel rim assembly s circumferential centerline can only be corrected using a spin balancer H
50. d must be 27 to accommodate the 8 25 rim width The load should 107160 bs 130 ps dual oniy 4 Tires to be reinstalled on 80 rim widths fter rereading must be buffed to 28 betore the retread is installed and the 056000 process 8 comple 4 Vehicle speeds should not exceed 65 miles per og 5 Norma maintenance procedures involving inion pressures repairs or rereading must be performed according to Yokohama s recommendations and those of the reread and repair material manufacturers 6 rimae specications state a lower maximum weht cag capacty at a ower maximum ar pressure than the 86 the maximum load carrying capacity af the 88 is lessened That in goves he maximum ad capacity of the 9 469 assembly emm MY627W replaces Michelin XZ US Goodyear G287HSS Bridgestone M860 RIM SIZE INFLATED DIMENSIONS LOADED DIMENSIONS cu HER us TREAD TIRE SIZE RATING WEIGHT MEAS ALT OVERALL OVERALL DEPTH SECTION STATIC RPM NUMBER pa es WIDTH DIAMETER 1 32 WIDTH RADIUS INCH INCH ONCH INCH INCH 358825 em a 158 90 8 3 ep n 87 87 a Available 2 Quarter 2010 55 YOKOHAMA Atire upgrade alone does not upgrade the caring capacity of the front ae d the vehicle Tolegal and safely carry 20 000 is on the front ade requires front end components wheels and 65 8 all be rated at 20 000 85 Wheel ratings are stamped on the wheel Pale capacities can be verified by checking the vehicle line she
51. d on the tire sidewall or the rim wheel maximum pressure unless a higher pressure is recommended by the manufacturer Recheck the multi piece assembly after tire inflation and while still within the restraining device to make sure the rim and ring s are properly seated and locked If further adjustment of the tire rim and rings are necessary the tire must be completely deflated before the adjustment is made CAUTION Do not attempt to correct the seating of the side and lock rings of a multi piece assembly by hammering striking or forcing the components while the tire is still under pressure Tire may be inflated on the vehicle providing they have more than 80 percent of the recommended pressure and a clip on air chuck is used to ensure that nobody is in the rim wheel components trajectory path AII employees must stay out of the rim wheel and air blast trajectory when inflating tires on a vehicle Whenever multi piece rims or wheels are handled all persons must stay out of the rim wheel air blast trajectory unless the employer can demonstrate that performance of the servicing requires a person s presence in the trajectory SAFE OPERATING PROCEDURES FOR SINGLE PIECE RIMS WHEELS TIRE DEMOUNTING FOR SINGLE PIECED RIMS WHEELS All tires must be completely deflated prior to demounting Remove the valve core to ensure compete deflation The valve stem can be checked by running a piece of wire through the stem to make sure it is not plugged
52. dd up to more miles for every tire dollar spent MC CONSERVATION TO THE N DEGREE When the enemy is fuel consumption the solution is our Maximized Conservation Concept IMC technology Utilizing an advanced compound that minimizes the effects of heat on the casing and tread MC tires provide ultra low rolling resistance to reduce your cost per mile The end result is a long lasting smooth running tire that maximizes your truck s operating efficiency for increased profitability FUEL SAVINGS 4 more savings orporating Mi Standard Yokohama casing with MC Standard Yokohama casing without MC ing of identical Yokohama t jard compounding clearly il iting in appreciable fuel THE YOKOHAMA DIFFERENCE LONG WEARING TREAD SUPERIOR RETREADABILITY EXCELLENT EVEN TREADWEAR RESISTANCE TO STONE RETENTION SUPERIOR FUEL EFFICIENCY CUT AND CHIP RESISTANCE LOW COST PER MILE Advanced design technology and superior engineering are the reasons why Yokohama tires are so frequently chosen for tough situations Yokohama s goal is to produce radial truck tires that are the most trouble free with the lowest cost per mile when compared with any other tire in the industry 3 YOKOHAMA FINITE ELEMENT METHOD FEM DESIGN AND TESTING The developmental design phase of each Yokohama radial truck tire incorporates state of the art computer models to examine individual tire elements T
53. e failure vehicle mechanical and or handling problems However there are times when mixing of different tire sizes and constructions on a vehicle is necessary Some mixing of tires can be allowed if certain rules are followed The following rules give general guidelines for proper mixing procedures Never mix different tire sizes or construction types on the same axle 3 Bias ply tires can be mounted on steer axles and radial tires on single axle drive positions of two axle vehicles Reversing these positions may result in handling problems e Either bias ply or radial tires can be mounted on the steer axles if the vehicle has multiple drive axles All multiple drive axles should have the same size and construction tires a Tires mounted on trailers may be bias or radial as long as all tires on each individual axle are the same size and construction o No mixing of tire sizes and constructions are allowed on four wheel drive type vehicles 4WD If there are any other questions about possible tire mixing combinations the vehicle manufacturer should be consulted before actual changes are made TRUCK TIRE BASICS TIRE AND RIM SAFETY PROCEDURES An inflated tire and rim can be very dangerous if misused or worn out Many accidents some fatal have resulted from improper handling of and operations with truck rims and wheels As a result the U S Occupational Safety and Health Administrati
54. ee of debris dirt and moisture Dirt and debris can block the tire valve after mounting Moisture can permeate the casing and initiate oxidation rust of steel cords which reduces tire strength and casing integrity TIRES INSTALLED ON VEHICLES Storage area should be level and well drained Care should be taken to avoid prolonged contact with petroleum based substances oils fuels and asphalt Long term storage or storage of seasonal vehicles i e RV s boat trailers and show vehicles require special preparations Vehicles should be raised on blocks so weight is removed from the tires If blocking is not possible tire pressure should be increased 25 percent from inflation required for the loaded vehicle Vehicles should be moved every three months to prevent flat spotting and ozone cracking at the tire sidewall flex point Flat spots usually disappear when the tires warm up after a 25 mile drive Flat spotting which occurs on vehicles not moved for six or more months may not disappear Tires on vehicles stored outdoors should be protected by opaque covers to prevent damage from sunlight PRIOR TO RETURNING VEHICLES TO SERVICE Tire pressure needs to be adjusted to required inflation before the vehicle is returned to service REPLACEMENT OF TIRES ON FREQUENTLY STORED VEHICLES Owners of RV s boat trailers show cars etc should have their tires inspected by a qualified tire dealer if sidewall cracking and crazing occurs Rem
55. einen wheel weights which Ser Mas 86 do 6 Kleed Dear 6 20g Se Bo Lee ee Steere ag oe ur us Tralee nu ug m DEE Steevie ag 06 Or ue KN osas ug t o ROTATING DISC WHEEL RUN 0UT LIMITS Redi Ru Qu 892 D Tubeless steel disc wheels Lateral un Qut vom 0 Tubeless aluminum disc wheels iQ Bau Lateral un Qut um SOURCE Technology amp Maintenance Council TMC of American Trucking Associations 2200 Mill Road Alexandria VA 22314 703 838 1763 http tmc truckline com YOKOHAMA ss Radial tire construction and vocation specific tires have dramatically improved original tire tread life casing durability and retreadability Despite on going product improvements there is much a truck or fleet owner can do to increase tire life Maximum tire mileage depends on the tire rolling smoothly though the footprint Industry experts have determined the six primary factors which contribute to irregular wear on mechanically sound vehicles i e those without bent frames or axles Air pressure Loose wheel bearings Improper toe settings Mis aligned drive axles Improper camber settings Speed in excess of tire s designed speed AIR PRESSURE TIRE FOOTPRINT AND LOAD How a tire wears depends on the forces that act upon the contact patch of that tire as it meets the road Therefore it is important to maintain proper inflation pressure If a tire s load is equal on all ribs
56. es even wear Edge Cover Sheet incorporates specially designed rubber that increases durability at belt edges Stone Damage Prevention Grooves keep stones from reaching the bottom of the groove where premature casing damage can start TY527 replaces Michelin XD4 XDA HT Goodyear G338 Bridgestone M726EL M726 py nae 825 INFLATED DIMENSIONS ppap LOADED DIMENSIONS MAX LOAD CAPACITY AT size PART panne WEeHT MEAS ALT OVERALL OVERALL SECTION am RPM GE MAX NUMBER LR 88 WIDTH DIAMETER 1 32 WIDTH RADIUS LBPS LB PS KGKPA KG KPA SPEED ONCH wu NCH ONCH ONCH SINGLE DUAL SINGLE DUAL MPH 2525 209 18 mm 90 8 mu 410 3 e 192 512 6175010 mat 28000760 2575070 75 1825 sm e mm am 750 98 424 32 en 198 4 61750105 550 5 28000720 26500720 75 257945 2239 18 mm 855 108 403 MB 198 45 812980 mat 29070 25750780 75 1865 sm e e 85 750 no 44 en 209 an 850905 85915 300720 27250720 75 43 YOKOHAMA TRUCK STEEL HADIA On Highway Line Haul Drive Axle Operations FEATURES AND BENEFITS 30 32 Deep Groove Depth provides extremely long wear plus a firm grip with minimum heat generation Stress Wear Control Groove SCG reduces the occurrence of shoulder step down wear by redistributing the load on the outside rib Contoured Bead Shape allows the tire to seat evenly against the rim for extremely uniform rolling Provides long even wear reduced friction and smoother ride Funnel
57. essures and varies by manufacturer Some manufactures recommend lower inflation pressure since their design deflection is set at that inflation pressure If there are any questions regarding these recommendations please contact your Yokohama Representative YOKOHAMA se LONGER WEAR amp LOWER COST L00SE WHEEL BEARINGS READING TIRE WEAR PATTERNS TO IMPROVE DIAGNOSIS OF VEHICLE AND SUSPENSION PROBLEMS Loose wheel bearings often cause irregular cupping type wear on steer tires as seen below The wavy wear seen on the inboard right shoulder is typical of excessive wheel endplay This endplay may be due to loose wheel bearings On dualled tires both drive and trailer tires loose wheel bearings often cause inner shoulder inner dual tire step wear Techniques to detect loose bearings and other worn front end components are described in materials from The Maintenance Council TMC of the American Trucking Association ATA 27 YOKOHAMA IMPROPER TOE SETTINGS MORE READING STEER TIRE WEAR PATTERNS Toe wear and wear due to misaligned drive axles can be detected by rubbing your hand back and forth over the tread surface to feel for raised surfaces Tire scrubbing will cause feathering of the tread elements If the tread feels smooth as you slide your hand inboard and rough as you slide it outboard this indicates toe in The opposite is true for toe out The easiest way to remember this is Sm
58. et or contacting the axe manufacturer with the ae tag number Carrying capacities 55 are marked on the sidewall ATONS The 20 ply rated MYGZTW is appropriate for use on vehicles with front axe capacities of either 18 000 bs or 20 00 be The design width is 900 inches for tire Maximum air pressure is 130 pi for this tire SUMMARY The legal and maximum caring capacity in these applications 8 dependent onthe lightest rated item tire wheel or font suspensin steeing component Operational Speed 65 mph MAX LOAD CAPACITY AT COLD INFLATION PRESSURE MAX LB PSI LBPSI KG KPA KG KPA SPEED SINGLE DUAL SINGLE DUAL MPH 100000190 en 45409900 37450900 amp On and Off Highway All Position The Y773 and MY547 are all position conventional logging cement and construction operations Available in a range of sizes these tire s sturdy wide tread construction and thick undertread protects against cutting and chipping The top belt of newly developed steel cord material protects these outstanding retreadability FEATURES AND BENEFITS Five Rugged Contra diagonal Ribs with Aggressive directional and steering stability on steering axles and braking on drive axles Newly Developed Steel Cord Top Belt helps protect against rust and stone penetration damage while minimizing tread distortion and heat generation The Yokohama S15 808225 Y773 22 tes were specialy developed for gata vehicle ope
59. g durability and superior retread characteristics Fig 2 Casing fatigue is also addressed by Yokohama It occurs when strain and stress result in the failure of one or more of the casing s many elements Like a chain a tire is only as strong as its weakest point The resulting force of these strains and stresses is called strain energy strain x stress strain energy Yokohama uses this method to uniquely test radial truck tires and return results for design refinements In operation truck tires are subjected to many more stress variables than passenger tires e g higher inflation pressures frequent load changes and multiple retreading Therefore the effect of strain energy on tire durability is particularly important THE KNOWLEDGE GAINED FROM THIS ANALYSIS IS INCORPORATED INTO YOKOHAMA S NEWEST GENERATION OF RADIAL TRUCK TIRES New casing shapes optimized for durability have a six percent to 21 percent strain energy reduction at the belt edge and bead turn up areas over conventional designs New compounds for cap treads undertreads and sidewalls reduce the effects of fatigue on the tire and provide resistance to environmental pollutants Post production verification combined with computer aided design extensive off vehicle testing and stringent on vehicle monitoring ensures products that are proven to meet Yokohama s high standards Only after passing all these tests will Yokohama allow a product to be sold It i
60. gth and integrity of the casing which includes all parts of the tire except the tread and shoulder The quality of the Yokohama casing not only ensures original tread longevity and performance but also contributes to the long life of the tire when it is retreaded Body Ply Yokohama s casing consists of high tensile steel py which allows the tire to maintain inflation pressure successfully carry the load and resist shocks Steel Belts Yokohama s steel belts effectively increase the stiffness of the tread area minimize distortion of the ground contact area provide puncture resistance E ANNAN ibm Inner Liner Yokohama s inner liner is specially designed to minimize air seepage into adjacent areas of the tire The quality of the inner liner is critical to prevent air from penetrating into the casing Belt Edge Cushion Yokohama tires feature a belt edge cushion to help prevent separation of the belt edges and therefore the tread caused by the scissoring effect of the belts Bead Assembly Yokohama has developed and patented several unique bead assembly constructions Our bead assemblies are combinations of steel and nylon chafers reinforcing cord layers wrapped around the bead a bundle of high tensile steel wires and the bead filler apex rubber These combinations reinforce the bead area to secure the inflated tire against the rim In a tubeless tire this fit must be tight enough that ar does not leak from
61. he design curvature of the new tread profile Section Width The measurement of a tire s width from sidewall to sidewall excluding protective ribs or decorations A when properly mounted and inflated but with no load placed upon the tire Section Height The measurement of the vertical distance between the tre s bead seat and outer tread surface when properly mounted and inflated but with no load placed on the tire Free Radius The distance from the wheel axle center line to the outer tread surface of the unloaded property inflated tire Nominal Rim Diameter The linear distance between bead seats measured at the widest point This measurement may be in inches or millimeters Rim Width The linear distance between the outer and inner flanges on which the tire beads seat Overall Diameter The linear distance between the tre s tread surfaces measured at the widest point This measurement is taken with the tire mounted on the measuring rim and no load applied Static Loaded Radius The distance from the wheel axle center line to the tread contact surface Measured after the tire has been mounted on its measuring rim inflated to the test pressure and placed under a prescribed load 5 YOKOHAMA TRUCK TIRE BASICS THE CASING The life of a tire is dependent on many elements but perhaps the most important is the stren
62. he rim wheel must be checked for compatibility prior to assembly Use only the recommended rim wheel size for the tires in use Apply a nonflammable rubber lubricant to both tire beads and the bead seat areas to east mounting and eliminate tire and rim damage The use of volatile materials is strictly prohibited Use only well maintained tools and follow mounting procedures recommended in rim manuals for single piece rims wheels From the narrow ledge side of the rim mount the tires on steel single pieced rims wheels Care must be taken to avoid damaging the tire beads during mounting Do not use excessive force when assembling the tire and rim as damage to the rim wheel and the tire can result lf a tire changing machine is used to mount tires on single piece rims wheels the tire must be inflated only to the minimum pressure necessary to force the tire bead onto the rim ledge while on the tire changing machine If a bead expander is used it must be removed before the valve core is installed and as soon as the tire bead slips onto the bead seat All tires on single piece rims wheels must be inflated in a restraining device or positioned behind a barrier which is placed between the tire and the employee unless the rim wheel is bolted onto a vehicle while being inflated Do not sit or lean on the restraining device or barrier or place equipment on it Tires must not be inflated on the floor or where any other solid surface is within one foot of
63. hicles It incorporates an extra durable casing that resists chips and cuts and features a specially engineered bead area that dissipates heat buildup at higher speeds This not only allows the MY627W to tackle greater distances over highways it also gives it the durability to last through multiple retreads FEATURES AND BENEFITS The MY627W s Wide Outside Rib with extra wide serpentine grooves resists tears and its irregular surface shape significantly improves traction An Extra durable Casing allows it to be safely retreaded over and over again Bead Area Sidewall Indentations dissipate heat during stop and go driving which prolongs casing life and helps maintain the integrity of the rubber Double nylon Chafer creates extra protection around the bead for added durability during mounting and dismounting The Yokohama 319808225 WEN 00 tes were specialy developed for sanitation vehicle operations that require a high load canying capaci per tre ct protection long wearing trea compound and a durable casing that doe multiple ee These tres were also designed for smooth even wear good traction and fuel economy Since itis 8 special design thay must be installed and operated only on sanitation velis in accordance with the folowing guidelines 1 During ts original tread e the tire must be mounted ona 910 or 9 75 rim width 2 0y fer the tire has been retreaded may it be installed on an 825 rim The butt radius at retrea
64. ib type pattern the tread and grooves follow the circumference of the tire and have the following advantages Low rolling resistance Comfortable ride Good steering Relatively low noise generation Block Lug Type This pattern combines a rib type in the center with a lug type design and has the following advantages Wide twin straight grooves provide outstanding water evacuation Open shoulder block design provides increased wet and dry traction Excellent traction and braking force Suitable for paved and unpaved surfaces YOKOHAMA s TRUCK TIRE BASICS TIRE APPLICATION While the components of a tire determine its inherent performance characteristics it is the correct application of the tire that ultimately guarantees a satisfied customer Because of this it is important to carefully consider all the factors that affect tire performance in an application the size of the vehicle its specific use the road conditions and terrain weather or any special requirements a fleet or driver encounters If you have any questions or would like to consult us on a specific tire choice please contact your Yokohama representative We are involved in many field tests of truck and bus tires in various industries the results of our experience are always available to you Consistent with our policy to provide a full line of products to meet all needs of the trucking industry Yokohama manufactures a di
65. ice of Truck and Light Truck Tires publication TIRE BALANCE VEHICLE RIDE AND VIBRATION As a result of advancements in truck technology today s tire and wheel rim fitments require special attention By design radial tire construction and low aspect ratios contribute to a vehicle s ride and handling quality Proper tire mounting balancing and installation are Critical to attaining a smooth vehicle ride Vehicle vibration and a suspected problem tire may actually be improperly balanced or related to the mechanical condition of the vehicle BALANCING The technical definition of balance is the uniform distribution of mass about an axis of rotation where the center of gravity is in the same location as the center of rotation A balanced tire is one where mass of the tire when mounted on its wheel and the truck s axle is uniformly distributed around the axle its center of rotation Balanced tires can spell the difference between a positive and negative driving experience An out of balance tire and wheel assembly Degrades ride quality and driver comfort Shortens the life of tires bearings shock absorbers and other suspension components Vibration is the most noticeable effect of imbalance t is dependent on vehicle speed and may be felt in the steering wheel seats or floor board It often first becomes apparent between 40 and 45 mph and changes in magnitude with greater speeds Because of this Yokohama
66. igher ply rated tire needs to be installed In this example the dual drive tires 11R22 5 are set at 90 psi plus 10 psi for compensation between airing STEER 385 65R22 5 LR J 19 500 lbs Drive 11R22 5 LR G 40 000 Ibs Recommended Cold Inflation Pressures requires truck to be parked 3 4 hours STEER DUAL TIRE SRE SINGLE DRIVE 118525 48 NA 197 38565R22 5 881 Exceeds ties capacity MA 5315808225 Cem 180 psi mm NOTE Never bleed excessive air from a hot tire AIR PRESSURE MAINTENANCE PROTECTING YOUR WORK An important part of air pressure maintenance involves the use of high temperature metal valve caps The use of inflate through caps is a labor saving choice which is suitable for many on highway fleets YOKOHAMA AIR PRESSURE RECOMMENDATIONS These recommendations as outlined should be adopted and used for all Yokohama truck bus tires when the tires are new and first installed on the vehicle f they are adopted after the tires have operated and established a wear pattern the pressures in and by themselves will not have an effect on lessening the wear conditions or correcting an irregular wear pattern The pressures will only be effective in preventing wear if used from the point of the original mounting Keep in mind that tires are designed developed and manufactured to operate at a design deflection The design deflection is governed totally by recommended inflation pr
67. ill result in poorer fuel economy irregular wear and possibly heat related tire failures A higher than needed air pressure may improve the fuel economy but could result in increased irregular wear and in some applications more casing impacts tread damage Also the loss in fuel economy from under inflation gets much higher as you go farther down from vehicle recommendations The lost fuel economy at 20 percent underinflation can be double the loss at 10 percent underinflation 4 Operating Speed Like air pressure the loss in fuel economy is very different depending on the speed range in question LONGER WEAR amp LOWER COS VEHICLE RUNNING FACTORS Aerodynamic resistance of vehicle Rolling resistance Power transmission efficiency Acceleration resistance Hill climbing resistance VEHICLE RUNNING RESISTANCE AND VEHICLE SPEED VEHICLE RUNNING RESISTANCE 300 Aerodynamic resistance of vehicle 200 Rolling resistance Power transmission effieciency 20 40 80 100 120 75 SPEED 0 SPEED KM H 25 50 The chart shows aerodynamic loss far exceeds others as speed increases from one range to another TIRE STORAGE RECOMMENDATIONS The storage of tires requires particular care If tires are not stored properly not only will there be deterioration in their appearance there may be a loss in performance and compound integrity CONSIDERATIONS INSPECTIONS Tire tread
68. ion is the fluctuation in the force that appears in the rotating axis of a tire when a specific load is applied and the tire rotated at a specific speed It is necessary to minimize radial force variation to ensure trouble free installation and operation Not all wheel assemblies indicate the point of minimum radial run out rendering uniformity match mounting sometimes impossible If the point of minimum radial run out is not indicated on a wheel assembly the weight method of match mounting should be used instead To ensure trouble free installation and operations it is necessary to minimize radial run out The red mark on the tire indicates the point of maximum radial run out It should be aligned with the wheel assembly s point of minimum radial run out which is generally indicated by a dimple somewhere on the wheel assembly RUCK TIRE BASICS WEIGHT METHOD When performing weight match mounting the yellow mark on the tire indicating the point of lightest weight should be aligned with the valve stem on the wheel assembly which represents the heaviest weight point of the wheel assembly After match mounting by either of the above methods the tire wheel assembly can be balanced For additional information on match mounting and proper tire mounting and installation procedures contact the Rubber Manufacturers Association RMA publications can be obtained directly by calling 202 682 4800 www rma org Ask for Care amp Serv
69. ires Misaligned drive axles which causes steer tire shoulder wear on one or both tires Speed in excess of tire design i e 75 mph References RMA Care and Service of Truck and Light Truck Tires TMC RP233 Guidelines for Tire Inflation Pressure Maintenance TMC Guidelines for Total Vehicle Alignment Truck Wheel Alignment A Common Man s Guide by Mike Beckett YOKOHAMA 30 FACTORS INVOLVED IN FUEL ECONOMY VEHICLE OPERATION 8 Engine Idle Standby _ Ace Terrain Driveline Toads Tires Driver Behavior 1 Truck Tire Alone The amount of fuel used by a tire s rolling resistance varies a great deal depending on the tire design itself and the factors listed above Engine losses dominate fuel consumption For a typical truck running on highway routes tires are responsible for approximately only 13 percent of fuel use Therefore the relationship between tire rolling resistance and fuel consumption is about 8 1 an eight percent reduction in rolling resistance is necessary for a one percent reduction in fuel use Factors contributing to truck tire rolling resistance are a Energy loss due to repeated deformation of the tire tread belt and casing structure rolling through the footprint This is also called hysteresis in which the rotation accompanied by flexing produces intermolecular friction and converts energy into heat The majority around 90 percent of the total tire rol
70. les except where there is no specification established by the TRA In these few cases the tire design is based upon the European Tire and Rim Technical Organization ETRTO whose standards govern these tire designs To obtain recommendations for tires run in non standard applications customers and dealers should contact the Yokohama Technical Service department YOKOHAMA 34 LR Sales SE Guide Product Line Up P YOKOHAMA 4 TRU EEL RADIA Long Haul Steer Axle Applications The 101ZL marks a new generation of long haul steer axle tires Incorporating the latest Zenvironment technology it s engineered to provide low rolling resistance and excellent fuel efficiency at highway speeds while offering a 30 percent improvement in casing durability Combined with exceptional wet weather handling and increased tear resistance see why the 101ZL is setting new standards in the industry FEATURES AND BENEFITS to eliminate irregular wear SmartWay Verified 1012L replaces Michelin XZA 3 Goodyear G395 Bridgestone R287 RIM SIZE INFLATED DIMENSIONS LOADED DIMENSIONS PART RANG WEHT MEAS ALT OVERALL OVERALL DEPH SECTION STATO RPM RATING WEIGHT TRE SIZE NUMBER tay eet WIDTH DIAMETER 4 32 WIDTH RADIUS ONCH NOH ONCH NCH 2525 mp 16 M3 8 85 5 400 8 125 187 52 men me 149 mm B25 750 no 413 18 121 193 85 25798455 mp 16 e a 825 mu 413 18 mu 993
71. liable rubber for excellent cut and tear resistance off road and cooler operating temperatures at highway speeds 26 32 Original Tread Depth is the deepest of any all position on and off road tire in the industry for longer treadwear and greater value The 501ZAs Unique Casing offers stabilized performance over the life of the tire resulting in longer casing life and better retreadability The Contoured Bead Shape of the 501ZA makes mounting and dismounting easier and prevents air loss environment 50012A replaces Michelin XZY 3 Goodyear G288 Bridgestone M843 py tne PMSZE INFLATED DIMENSIONS ppap LOADED DIMENSIONS MAX LOAD CAPACITY AT tine size PART patine WelcHT MEAS ALT OVERALL OVERALL oeem SECTION STATIC RPM MAX NUMBER R 88 WIDTH DIAMETER 1 32 WIDTH RADIUS LBPSI org KGKPA KGKPA SPEED ONCH 69 ONCH ONCH ONCH SINGLE DUAL SINGLE DUAL MPH mes ms mm ee 79 99 0 D 9 87 0000 mam 302 222 e wes mm mm e 78 m 41 5 9 25 93 7000 aen 2989 3969 e 53 YOKOHAMA IVI 507 On and Off Highway All Position The MY507 is an ideal all position conventional profile radial tire for on and off highway logging cement and construction operations It utilizes Yokohama s revered STEM 2 technology to dramatically improve strain energy dispersion for improved retreadability and longer overall casing life This tire s sturdy wide tread construction and thick undertread protects against cutting and
72. ling resistance comes from this factor b Energy loss due to friction between the tire and road surface This is less than 10 percent of the total tire contribution Aerodynamic resistance of the tires this is extremely low 31 YOKOHAMA 2 Truck Tire Design Various tire types have different rolling resistances and fuel economy ratings Radial tires have better fuel efficiency than bias tires The tread component of radial truck tires account for approximately one half of the tire s rolling resistance Low skid rib designs trailer tires usually have better fuel economy than high skid rib designs steer tires And high skid rib designs steer tires normally have better fuel economy ratings than high skid lug designs drive tires Design factors such as tread footprint size tire construction and tread compounding can also affect tire fuel economy performance Some tire treads contain two layers with different compounds for wear top layer and heat resistance base layer The heat resistant layer allows the tire casing to run cooler This results in longer casing life better tread wear traction lower rolling resistance and better fuel economy e Inflation Pressure Maintenance The correct air pressure is critical to maintain the proper stress distribution in a tire Proper distribution of the load stress on a tire will reduce the amount of flexing and heat buildup that can waste fuel and shorten tire life Low air pressure w
73. m for the load Tire Size Designation 80 5 80 95 100 105 118 115 128 15 138 9R17 5HC s 85 3555 3730 3900 4070 4240 44100 D 8D 3180 3335 3495 3650 3810 397099 108175 8 3745 3810 4070 4225 4380 4530 487581 D 3620 3765 3895 4030 4160 4290 4410H Wad 8 4370 45401 4175 4890 50708 5270 5470 58759 D 4130 43001 4470 4640 480516 4990 5175 5355H 9R225 8 3730 3890 4080 4235 4390 45908 4875 4810 49406 D 8550 3890 386016 4005 4150 43008 4425 4550 4675 6 108225 85 49 48758 4850 5025 5258 5380 5515 56756 D 4410 4585 4760 490 5075 5210 535516 118225 8 490 5220 55107 8730 5950 617516 6320 6465 681061 D 4760 4850 52051 5415 5625 584016 5895 5950 6058 118245 8 840 5550 5890 6095 6350 661016 6790 6970 718001 5070 5260 55107 5875 5840 6058 6205 6 05 681091 125 S 59 5690 6005F 6205 6405 6510 6879 7180 739099 D 5 0 5390 58750 5785 5895 600516 6265 6525 678091 225 70R19 5 S 150 3315 3450 25 0 3715 3845 397016 D 83008 8115 3245 32415 3 90 2815 3750 245 70R19 5 8 3640 3740 3890 4080 4190 4335 454016 4620 4858 D 3415 3515 3655 3860F 3940 4075 430016 4345 4540H 265 70R19 5 s 3970 4180 4355 4540 4685 4850 5070 D 3830 4085 4300 4405 4418 487516 285 70R19 5 amp 1 5160 5395 5635 5785 5980 6175H D 4850 5070 5290 5435 5555 587509 545 758225 S 3875 4140 4300 4455 4810 4875 3525 3615 3765 8970 4055 4195 43006 265 75R22 5 8 4300 4440 4620 4805 4975 5150 520516 D 3860 404
74. ma Standard Limited Warranty remains in effect with the use of these additives providing the additive is not the cause of a tire condition submitted for a warranty claim Damages attributed to the use of an additive will be denied warranty consideration All Yokohama tires are designed and manufactured as pneumatic products and as such rely on air pressure for performance Additives such as foam filling installed as replacement for air inflation pressure negate all terms of the Yokohama Standard Limited Warranty YOKOHAMA ig RUCK TIRE BASICS MOUNTING UNIDIRECTIONAL TIRES UNIDIRECTIONAL TIRE MOUNTING The unidirectional tread design allows for optimally shaped tread blocks that prevent block squirm increasing tread life and reducing irregular wear The unidirectional design provides these benefits only when mounted in the proper direction Front of Vehicle DIRECTION OF ROTATION Fy DIRECTION OF ROTATION When viewed from the top the tread pattern should face in the following direction As the wheel of dual drive axle applications is mounted facing opposite directions inner wheel disk side facing out outer wheel disk side facing in ensure that the direction of rotation arrow on the sidewall points to the front of the vehicle with the wheel facing the correct direction 6x4 6x2 An arrow molded on both sidewalls also indicates the proper direction of travel With the arrow at the top this arrow must p
75. mart Choice when you need maximum value from your tire investment 1 YOKOHAMA Yokohama technology gives you the advantage Fleet owners require more miles greater retreadability longer even wear and less maintenance costs from their tires And with the extreme demands of today s trucking industry continuous innovation is essential That s why Yokohama offers advanced tire technologies to help you achieve greater returns from your tire investment From our innovative Zenvironment technology that delivers better results for the road and the environment to our exclusive STEM and STEM 2 technologies that provide maximum casing life to the ultra low rolling resistance derived from MC technology Yokohama engineers some of the most technologically advanced tires available anywhere environment ZENVIRONMENT SMARTER ENGINEERING FROM THE START Zenvironment offers proof that technology can provide better results for the environment while delivering superior performance on the road By combining innovative tread designs compounds and casing construction with a highly efficient manufacturing process Zenvironment tires not only reduce fuel consumption waste and pollution they can also help significantly reduce your operating costs Innovative tread designs Recent advancements allow Zenvironment tires to deliver longer tread life and lower rolling resistance for better fuel economy Groundbreaking rubber compounds Ou
76. nd vehicle weight does not exceed the rated load of the rims wheels and tires used Do not exceed the tire or rim wheel maximum inflation pressure Maximum inflation pressure is usually determined by the size and ply rating of the tire but is not to exceed the maximum inflation listed for the rim wheel It is also important to maintain uniform inflation in both tires of a dual assembly so the weight is equally supported Inspect rims wheels for damage during engine checks and at periodic maintenance intervals Remove and replace damaged parts SUMMARY SAFE OPERATING PROCEDURES According to the rules and regulations in OSHA Standard No 29 CFR Part 1910 177 employers must adopt a safe operating procedure for servicing multi single piece rims wheels as outlined below All employees who service truck wheels must be instructed in these procedures MULTI PIECE RIMS WHEELS SAFE OPERATING PROCEDURES 1 Remove the valve core to completely deflate tire before demounting them 2 Remove the valve core to completely deflate the tire before taking the rim wheel off the axle when inflation pressure is 8096 or less of the recommended tire pressure or when there is damage to the tire or rim wheel components 3 Tires are to be mounted only on compatible rims wheels having matching bead diameter and approved width 4 Apply a nonflammable rubber lubricant on the bead and rim wheel mating surfaces before tire and rim wheel assembly 5 Inflate
77. not be used Petroleum oils or grease these may have a harmful effect on the tire tube and flaps Improper ratios of approved lubricants and water these may have harmful effects on the tire wheel and tube Silicone oils and emulsions these may cause the tire to slip on its rim while in use Solvent based lubricants these may create explosive mixtures of air and volatiles in the tire which may result in serious injury or death ra e a SOURCE Technology amp Maintenance Council TMC of American Trucking Associations 2200 Mill Road Alexandria VA 22314 703 838 1763 http tme truckline com USE OF SEALANTS Many products are available in the market which are additives designed to be installed in the mounted tire s interior chamber and are marketed to enhance inflation pressure retention or improve the tire s balance and ride characteristics amongst other claims by their manufacturers The number of these products currently available in the marketplace prohibits the testing and evaluating of each and every one with Yokohama products Therefore it is not possible to endorse or prohibit the use of these products in Yokohama tires Yokohama does not recommend endorse or prohibit additives installed in the interior chamber of its mounted tires providing the material is not flammable and or injurious to the tire chamber or structure and does not replace air pressure as the tire s primary inflation medium The Yokoha
78. ns OE FITMENT ON Hino FB 04 05 FB F 04 05 Mitsubishi Fuso FH F 04 10 UD Trucks UD1800 UD2000 04 09 py Tine BN SUE INFLATED DIMENSIONS eu LOADED DIMENSIONS MAX LOAD CAPACITY AT size PART pamine WEIGHT MEAS ALT OVERALL OVERALL DEPTH SECTION STATIC RPM DOLDINFEATIONIPREBSURE NUMBER ER 88 WIDTH DIAMETER 1 32 WIDTH RADIUS LB PSI LB PS KGKPA KGAPA NH ONCH mon ONCH mon SINGLE DUAL SINGLE DUAL 157855 1094 1OE ae 8 73 257 12 78 120 82 2080085 1960g65 9500600 90980 205600175 923 e 33 600 525675 81 22 12 B2 127 763 2495e85 270085 10900600 10900600 257575 ee mm 55 am am 81 22 16 88 140 25300190 34900100 1 a1575R175 410308 146 56 8 675 81 302 16 89 140 694 37500105 eem 17000720 16000720 Al Steel 81 YOKOHAMA K COMMERCI Highway Steel Belted Radial Rib The RY215 slices through standing water to provide outstanding wet road performance Designed for better handling the RY215 is ideal for light and medium duty commercial applications FEATURES AND BENEFITS Tapered Multi kerf Shoulders prolong tread life and improve steering stability Wide Grooves and Deep Kerfs disperse water more efficiently for wet weather handling High Turn up Construction and Bead Filler reduce beadline cracking and improves responsiveness Polyester Carcass with Steel Belts increases durability py ae BMMSIZE INFLATED DIMENSI
79. ns balanced dispersion of stress for easy rolling longer life and enhanced fuel economy Heavy duty Two ply Steel Belts deliver long mileage and handling stability All steel Construction improves original tread durability and guards against punctures Sturdy 14 ply Construction carries the load up to 3330 Ibs single and 3175 Ibs dual tire ply tine PM SUE INFLATED DIMENSIONS npag 10050 DIMENSIONS MAX LOAD CAPACITY AT ThE size PART patine WEleHT MEAS ALT OVERALL OVERALL peprH SECTION STATIC RPM EE KEE NUMBER uni LBS WIDTH DIAMETER 1 32 WIDTH RADIUS LB PSI LB PSI KG KPA KGKPA INCH INCH NCH INCH INCH SINGLE DUAL SINGLE DUAL 7886 em a 5 80 80 82 2 19 90 8590 en 22 09 00 31750400 15100690 14400690 87 YOKOHAMA
80. o ensure proper designs and maximum performance this Finite Element Method FEM evaluates stress and strain in each part of the tire by simulating operation under load Shear plunger and durability tests are performed on the tire components resulting in tires that are stringently designed to perform at the highest levels for their intended use Yokohama however does not stop here The tire undergoes a rigid series of on vehicle tests under real world conditions Traction rolling resistance and fuel economy are measured through every stage of tread life Whether on road off road or pick up and delivery you can be assured that Yokohama produced the best possible tire for your application Casing um up edge Stee SS Belt edges Steel belts Figure 1 Illustrates the strain energy of a typical truck and bus tire The highest level of strain energy occurs around the bead assembly and n the upper shoulder area of the belt edges Casing turn up edge Stes 6 59 i distributed throughout heure Belt edges Steel belts Fig 2 Cross section of a Yokohama truck and bus radial showing strain energy reduction The Finite Element Method FEM allows Yokohama to design and reduce the tremendous strain levels in these two critical areas by optimizing the casing shape Strain energy is decreased on the specific areas of the tire and distributed along the entire casing sidewall This reduction in strain results in outstandin
81. oint to the front of the vehicle when the tire is mounted 19 YOKOHAMA RUN OUT AND MATCH MOUNTING To facilitate proper balancing Yokohama places red and yellow marks on the sidewalls of some truck tires to enable the best possible match mounting of the tire wheel assembly There are two methods of match mounting Yokohama tires to wheel assemblies using these red or yellow marks Uniformity red mark Weight yellow mark A CAUTION Improper mounting under inflation overloading or tire damage may result in tire failure which may lead to serious injury Tire and rim sizes must correspond for proper fit and application Never exceed 40 psi to seat beads A CAUTION Tire changing can be dangerous and should be done only by trained persons using proper tools and procedures established by the Rubber Manufacturers Association Failure to comply with proper procedures may result in incorrect positioning of the tre tube or wheel assembly causing the assembly to burst with explosive force sufficient to cause serious physical injury or death Never mount or use damaged tires tubes or wheel assemblies UNIFORMITY METHOD When performing uniformity match mounting the red mark on the tire indicating the point of maximum radial run out should be aligned with the wheel assembly s point of minimum radial run out which is generally indicated by a dimple somewhere on the wheel assembly consult manufacturer for details Radial force variat
82. on 0SHA has issued standards regarding wheel and rim servicing Federal OSHA Standard No 29 CFR Part 1910 177 Servicing Single Piece and Multi Piece Rim Wheels It is therefore of the utmost importance that the precautions and instructions outlined in this Recommended Practice and the OSHA standard be carefully followed by all persons servicing truck rims and wheels to avoid personal injuries and costly damage as well as comply with federal regulations If conflicts occur OSHA standard No 29 CFR Part 1910 177 takes precedence TRAINING Employers must provide a training program for all employees who service tube and tubeless tires on wheels and rims and ensure that no employee services any rim or wheel unless the employee has been trained in the safe operating procedures described in this document and the OSHA standard In addition they must ensure that each employee demonstrates and maintains his or her ability to service rims and wheels in the following areas Tire demountin and deflation Wheel and component inspection and identification Tire mounting and inflation The use of restraining devices Handling of rims wheels Inflation of tires mounted on a vehicle e Installation and removal of rims wheels from vehicles Remaining outside the rim wheel and air blast trajectory during and after inflating the tire Employers must evaluate each employee s ability to perform these tasks and provide additional
83. one rejection Blocks in the center groove reduce stone penetration for improved casing life They also reduce irregular wear abuse by stone retention Specially Reinforced Bead Construction highly turned up body ply with a one ply steel two ply nylon chafer construction increases bead area durability for high load operations and retreadability RY253 replaces Michelin XTE 2 Goodyear G286ASS Bridgestone R194 ply mpe _ RIM SIZE INFLATED DIMENSIONS oppg LOADED DIMENSIONS MAX LOAD CAPACITY AT tine size PART pamine WEleHT MEAS ALT OVERALL OVERALL DEPTH SECTION STATIC RPM ER MAX NUMBER LR LBS WIDTH DIAMETER 1 32 WIDTH RADIUS LB PSI LE PSI KG KPA KG KPA SPEED NCH NCH INCH ONCH ONCH SINGLE DUAL SINGLE DUAL MPH 395G5R225 2211 dB mum 1855 48 423 19 157 198 45 98700120 NA 42500830 NA D 456825 25904 mn 4981300 1751225 85 443 19 178 205 o 11400120 NA 51700800 NA 65 456 5 22 2 20 400 140 2 457 20 489 an 459 123000120 NA 5600630 NA 65 YOKOHAMA se Y788R eneco REIN Highway Steel Belted Radial Rib Designed to stay on course no matter the driving conditions the Y788R provides on highway stability and high load durability that cover all the bases The Y788R is an ideal steer tire FEATURES AND BENEFITS Center Rib follows the road for a smoother ride Wide Shoulder Ribs add miles to tread life Five tib Wide shoulder groove Tread Design for superior stability and grip
84. ooth in Toe in Smooth out Toe out Excessive toe in causes premature wear on the outboard edges of both steer tires Excessive toe out causes premature wear on the inboard edges of both steer tires TOE OUT Toe is the most basic front end setting Typically toe is set a 1 16 toe in 1 16 Measured and set in a static state toe in allows the wheels to run straight when the vehicle is loaded rolling down the highway TOE IN The distance between the front the TOE OUT The distance between the front of tires is less than the distance between the rear of the tires the tires is greater than the distance between the rear of the tires LONGER WEAR amp LOWER COST ACKERMAN PRINCIPLE The geometric principle used to provide toe out on turns The ends of the steering arms are angled so that the inside wheel turns more than the outside wheel when a vehicle is making a turn without scrubbing the tire treads on the road surface Ackerman should be checked on all new vehicles and when the wheelbase is modified or toe type wear is observed but toe in is correct ACKERMAN PRINCIPLE The inside wheel turns in more sharply than the outside one MISALIGNED DRIVE AXLES STEER TIRE WEAR CAUSED BY MISALIGNED DRIVE AXLES If the drive axles of a vehicle are out of alignment you may detect the resulting wear pattern rubbing your hand across the tread surface of the steer ti
85. or Wheel or Accuride CR or FL Lock Ring f Proper Fit Motor Wheel or Accuride CR or FL Base ane md as a ZE Fee Motor Wheel or Accuride CR and FL Bases and Components interchangeable With Accuride CR and FL Motor Whee LB Bases and Components interchangeable With Accuride and Budd LB YOKOHAMA 15 Tires shall be inflated outside a restraining device only to a pressure sufficient to seat the tire bead onto the rim ledge not to exceed five psi All tires on multi piece rims wheels must be inflated in a safety cage or other restraining device Do not sit or lean on the restraining device or barrier or place equipment on it Tires must be inflated on the floor or where any other solid surface is within one foot of the tire s sidewall A CAUTION All persons must stay out of the rim wheel and air blast trajectory when inflating a tire INCORRECT 5 Lock Ring CR or FL Side Ring TAP Wo 8 Base s f pig PSN A Bend Seat Too High keen R or FL Flange amp Lock Ring Base 1 Bez SS tember Ww improper Seating TRUCK TIRE BASICS Always use a clip on air chuck and enough air line to allow the employee to stand clear of the potential trajectory of the rim wheel components The air line must have an in line valve with a gauge or a pressure regulator with a gauge preset to the desired valve Do not exceed the inflation pressure molde
86. or elements it tends to have a square footprint shape The shoulder rib contact area is very long about the same length as the center ribs As the tire rotates contact with the road is good 194 000 mile steer tire 23 YOKOHAMA A lightly loaded tire tends to have a short shoulder rib contact area shorter than the center rib As this tire rotates the footprint center maintains very good contact but the shoulder area does not This causes much more scrubbing action and wearing away of the shoulder rib This type of wear is often seen on trailer with light loads and high fleet recommended air pressures AIR PRESSURE MAINTENANCE THE HIGH PRICE OF UNDER INFLATION Proper tire inflation is perhaps a fleet s greatest daily maintenance responsibility The relatively short time spent to check and inflate tires can save hours of potential down time fuel thousands of dollars in lost tire wear and damaged casings not to mention possible vehicle and payload damage Tire under inflated for load Under inflation by 20 percent decreases tire life by 30 percent TMC RP233 Under inflation will reduce the tire s original tread mileage It will also cause premature casing fatigue due to over deflection and excessive heat build up in the casing The tire above had a small penetration which allowed it to slowly deflate River type wear may be seen in such tires Recently Yokohama Tire conducted a test with four vehicles Two
87. original manufacturer s DOT labeling as opposed to having it removed may be retreaded 11 YOKOHAMA TRUCK TIRE BASICS SERVICE DESCRIPTION DESIGNATED TIRES LOAD INDEX CHART DEFINITIONS The maximum load a tire can carry Service Description A service designation which is distinct from the size at various cold inflation pressures designation consisting of the Load Index Single Load Dual Load where applicable 1584 and Speed 8 01 Index KG LBS Speed Category A category assigned to a tire which denotes the maximum 180 1400 3085 speed for which the use of the tire is rated 121 1450 3185 122 1500 3305 Speed Symbol A symbol indicating the speed category at which the tire can 123 1550 3415 carry a load corresponding to its Load Index under specified service conditions 124 4600 3525 Load Index A numerical code associated with the maximum load a tire can carry 125 1650 3640 atthe speed indicated by its Speed Symbol under specified service conditions iia SEU 127 1750 3860 128 1800 3970 129 1850 4080 130 1900 4190 SPEED SYMBOL SPEED CATEGORY TE al ET F 50 mph BO km h 132 2000 4410 133 2060 4540 B 521155 154 2120 4675 di 62 mph 100 km h 135 2180 4805 136 2240 4940 K 68 mph 110 km h 137 2300 5070 138 2360 5205 75 mph 120 km h 189 2430 5355 M 81 mph 130 km h 140 2500 5510 141 2575 5675 142 2650 5840 143 2755 6005 144 2800 8175 READING LOAD INDEX CHART AND SPEED SYMBOLS 145 2900 8395
88. oving the valve core before demounting 2 Mounting and demounting of tires must be done only from the narrow ledge side of steel rims wheels Apply rubber lubricant in the bead seat areas to ease demounting Care must be taken to avoid damaging the tire beads 3 Tires are to be mounted only on compatible rims wheels having matching bead diameter and approved width 4 Ifa tire changing machine is used the tire can be inflated only to the minimum pressure necessary to force the tire bead onto the rim ledge while on the tire changing machine 5 If a bead expander is used it must be removed as soon as the assembly becomes air tight The valve core can then be installed 6 Tires may be inflated only when contained within a restraining device or behind a barrier or bolted on a vehicle with lug nuts fully tightened 7 Tires must not be inflated on the floor or where any other solid surface is within one foot of the tire s sidewall 8 All persons must stay out of the trajectory when tires are being inflated 9 Tires must not be inflated to more than the inflation pressure molded on the tire sidewall or the maximum pressure of the rim wheel unless a higher pressure is recommended by the manufacturer 10 Never inflate above 40 psi to seat the tire bead If the beads are not seated against the rim flange at 40 psi stop deflate the tire and determine the problem 11 Never apply heat to a single piece rim wheel 12 Cracked
89. patibility prior to assembly Use only the recommended rim wheel sizes for the tires in use Do not be careless or take chances If you are not sure of the proper mating of the tire and rim wheel parts consult a rim wheel expert This may be the person who is servicing your fleet the rim and wheel distributor in your area or a tire or wheel company sales engineer If you cannot identify the rim or rings by size and type they must be scrapped TIRE MOUNTING AND INFLATION FOR MULTI PIECE RIMS WHEELS Follow recommended mounting procedures and use the proper tools as specified in rim wheel manufacturer service manuals Apply a nonflammable rubber lubricant to both tire beads and the rim wheel bead seat areas to ease mounting and eliminate tire damage The use of volatile materials is strictly prohibited Do not use excessive force when assembling the tire and rim as damage to rim parts and the tire can result To reduce the possibility of damage to the tire do not use a hammer to force the tire onto the rim since this can cause bead and inner liner damage Use only well maintained tools that are recommended in the multi piece rim wheel service manual The size and type of both the tire and the rim wheel must be checked for compatibility prior to assembly Use only the recommended rim wheel sizes for the tires in use DIAGRAM A CORRECT ccuride 5 or Motor Wheel CR or FL Flange Motor Wheel or Accurde CR or FL Side Ring US Mot
90. pounds ensure ultimate fuel economy while providing excellent integrity and durability INFLATED DIMENSIONS LOADED DIMENSIONS MAX LOAD CAPACITY AT OVERALL OVERALL pepr SECTION STATIC RPM E WIDTH DIAMETER 1 32 WIDTH RADIUS LBPS r KGKPA KGAPA NCH NCH INCH ONCH SINGLE DUAL SINGLE DUAL 82 215 14 89 147 3390100 31758100 15100690 14400690 84 313 13 30 145 68 aee 2460080 12700550 11200550 TYSOS LIGHT TRUCK COMMERCIA Highway All Steel Radial Traction Drive axle radial for on highway operations for 2 axle tractors Available in low profile sizes Deep tread and advanced shoulder lug groove pattern promote fiat even treadwear throughout the long life of the tire The special tread compound not only extends tire mileage but also delivers increased fuel economy The precise casing construction allows for excellent retreadability FEATURES AND BENEFITS Special Tread Compound generates fuel efficiency and long tread life Advanced Arrangement of Shoulder Lug Grooves promote flat even treadwear Rib block Tread Design combined with a deep tread depth provides low rolling resistance outstanding traction on snow and muddy terrains and excellent durability OE FITMENT ON Nissan Diesel UD1800 95 06 py ting PMSIZE INFLATED DIMENSIONS vec LOADED DIMENSIONS MAX LOAD CAPACITY AT gine size PART pamine WElGHT MEAS ALT OVERALL OVERALL peprH SECTION STATIC RPM COLO INFLATION PRES
91. r environmentally efficient single stage mixing method creates a higher quality rubber compound that not only increases mileage by 10 it also lengthens tread life and minimizes rubber fatigue to help these tires last longer Advanced casings Our unique Zenvironment casing is designed to compensate for the natural aging of materials as well as the normal expansion that occurs during the first 30 000 miles The result is an extremely stable tire that delivers consistent performance throughout its entire lifespan With Zenvironment technology the end result is a long lasting fuel efficient tire that delivers significant savings at the pump Which means that Zenvironment isn t just better for the environment it s also better for your bottom line THE YOKOHAMA DIFFERENCE Groundbreaking rubber compounds adn ig r3 rx muse 00 soar Most durable casings Innovative tread designs StrainEnergy Minimization StrainEnergy Minimization STRAIN ENERGY MINIMIZATION TECHNOLOGY EXTENDS CASING LIFE Even under normal operating conditions a tire under load is subjected to incredible straining and flexing forces that can break down the strength of the casing steel and rubber compounds much like what happens to a paper clip that s bent rapidly back and forth But Yokohama s exclusive STEM and STEM 2 technologies reinforce the casing to extend tire life allowing for multiple retreads and reduced maintenance costs that a
92. rations that require a high load carrying capacity par tre cut protection long wearing tread compound and a durable casing that allows miDg 61556 These 85 were 359 designed for smooth even wear good taclon and fuel economy Since it is a spacial design they must be installed and operated only on sanitation velides in accordance with the folowing guidelines 1 During ts original read ife the tre must be mounted on a 9 0 or 9 75 rim width 2 Oniy after the tire has been retreaded may it be installed on an 8 25 rim The buff radius terea must be 27 to accommodate 86 82 rim with The 584 shouid be te b7160 hs9130 psi dual ony 3 Ties to be reinsta ed on 9 0 rim widths after retreading must be buffed to 28 before the 56 i installed and the retreading process is completed Vic speeds should not exceed 65 miles per hour 5 Normal maintenance procedures involving ination pressures repairs or retreading must be performed according to Yokohama recommendations and those of the reread and repair material manufacturers 6 be rimiwheel specications state a lower maximum weight carrying capacity at a lower maximum air pressura than the tire the maximum Ioad carying capacity die ire 8 5986 That in um govems the maximum lad capaci of the Heed assembly py mpg E TIRE SIZE EI RATING WEIGHT MEAS ALT LR 088 INCH 31560R225 725 2 15 90 82 12225 me mm 18 80 8 Geeks TIRE SIZE ven RATING WEIGHT MEAS ALT L
93. res How does it work to cause STEER TIRE WEAR 5 N mun IE 1 1 LEFT THRUST m If the drive axles push the truck left fe nm Shoulder wear occurs on the left side outboard side of the left front tire Shoulder wear also occurs on the left side inboard side of the right front tire LONGER WEAR amp LOWER STEER TIRE WEAR CAUSED BY MISALIGNED DRIVE AXLES continued RIGHT THRUST RIGHT THRUST TOE OUT If the drive axles push the truck right Shoulder wear occurs on the right side inboard side of the left front tire Toe out with a right thrust angle causes the right front tire to wear normally Shoulder wear also occurs on the right side outboard side of the right front tire but the left front tire will have inner shoulder wear There are also combinations of toe misalignment and drive axle Another source of right thrust misalignment whichcause scrubbing wear on only one steer tire if the drive axles are off center jacked to the left it causes a situation similar to an off center motor on a motor boat A A RIGHT THRUST TOE IN mom mu S Toe in with a right thrust angle causes the left front tire to wear normally but the right front tire will have outer shoulder wear Right thrust complaints are more common than left thrust complaints in the United States This is due to the crowning of the roads of the interstate highway system 29 YOKOHAMA
94. rmer for the long haul FEATURES AND BENEFITS Five rib Tread Design with four grooves provides excellent wet traction superior water channel dispersion and long tread life A Wide Tread combined with a 19 32 Tread Depth enhances even wear Stone Rejection Blocks in the center grooves reduce stone penetration damage RYOB3A replaces Michelin XZA 1 Goodyear G397 Bridgestone R287 R227 PART NUMBER TIRE SIZE 9575H225 08307 188228 08393 285788245 08381 118245 22 89 YOKOHAMA RIM SIZE PLY TIRE RATING WEIGHT MEAS ALT RJ 88 INCH 465 i7 om 825 165 m 85 750 165 mm es 146 8 o a INFLATED DIMENSIONS un 04050 DIMENSIONS MAX LOAD CAPACITY AT OVERALL OVERALL nEprH SECTION STATIC RPM GR MAX WIDTH DIAMETER 1 32 WIDTH RADIUS lg PS pe KGKPA KGKPA SPEED NCH NOH ONCH NCH SINGLE DUAL SINGLE DUAL MPH na 402 19 123 187 59 61750110 56750110 28000760 25750000 75 no 44 9 122 193 504 61750105 5800105 28000720 26500720 75 108 9 m7 184 mp 517580 5675010 28008750 2575000 2 mu 484 19 122 203 480 ee 60050105 30000720 275070 75 703ZR 104Zm TRUCK STEEL RADIAL Regional Highway All Position We created the 103ZR and 104ZR to be extraordinarily cut and chip resistant with deeper tread depths for high scrub applications And because we designed them using our revolutionary Zenvironment technology they deliver exceptional mileage and the lowest rolling resistance in their cl
95. s Check all metal surfaces for rust or corrosion build up cracks in metal bent flanges sprung side and lock rings deep tool marks in rings or in gutter areas Rim bases and side or lock rings which are bent out of shape pitted from corrosion broken or cracked must not be used and must be rendered unusable and discarded In addition replace any part if there is any loss of contour or metal thickness Do not under any circumstances attempt to rework weld heat or braze any rim components that are cracked broken or damaged Clean all surfaces especially the rim gutter mating surfaces on side and lock rings and bead seat areas Dirt surfaces rust scale and rubber build up must be removed prior to tire mounting and inflation It is a good practice to paint the steel rim wheel with fast drying paint after it is cleaned to prevent new rust from forming or use a rust preventative made especially for rims wheels Allow the paint to dry A filter that removes moisture from the air line installed on the air inflation equipment also prevents most corrosion These filters should be checked periodically to ensure that they are working properly and shop air tanks should be drained on a regular basis Rim bases and rings must be matched by size and type This information is stamped on every part Rim components must not be interchanged except as noted below See Diagram A The size and type of both the tire and the rim wheel must be checked for com
96. s and side walls are constructed from compounds that resist deterioration caused by sunlight ozone and extreme temperatures Nevertheless stored tires should be protected against these and other potentially damaging conditions The longer the storage period the greater exposure there is to potential damage so it is always advisable to first use the tires that have been in storage the longest Store tires in an area that is clean cool dark and well ventilated but with a minimum of circulating air Avoid areas that are wet humid oily greasy or in direct sunlight Do not store in the same area as an electric motor or other ozone generating sources If there is a question check the ozone level to be sure it does not exceed 0 08 ppm Do not store tires directly on black asphalt or other heat absorbent surfaces Avoid storage adjacent to highly reflective surfaces As a rule tires should be stored in an upright position to prevent distortion or disfiguration and to make mounting work easier If it is necessary to store tires in a horizontal position be sure to stack passenger car and light truck radial tires no higher than one meter 3 feet and radial truck tires no higher than one and one half meters 4 1 2 feet When storing tires that have been inflated deflate to 50 percent of the normal pressure Keep valve caps in place PRIOR TO MOUNTING STORED TIRES Tire interior should be inspected to determine the air chamber is fr
97. s for that reason that Yokohama tires are so often chosen for tough usage situations such as waste hauling and material handling Subjecting our tires to rigorous pre release checks ensures Yokohama s superior standards of consistency reliability and durability Customers and dealers can depend on trouble free performance as well as some of the lowest possible cost per mile efficiencies of any product in the industry This philosophy extends well beyond the original treadwear cycle and into the retreading stages Retreaders have consistently rated Yokohama casings among the most retreadable in the business They have become synonymous with consistency and reliability Yokohama institutes critical measures to protect against undesirable occurrences with its radial truck tires It creates a solid bond of trust and confidence between manufacturer and user Yokohama offers a wide spectrum of truck radials designed to meet any challenges regardless of the duty they must face gt YOKOHAMA TRUCK TIRE BASICS DESCRIPTION OF TIRE DIMENSIONS The following diagram offers explanations of key dimensional information relevant to truck tires Overall Width The exterior measurement of a 85 width from the inner to the outer sidewall including protective ribs and decorations when properly mounted and inflated Tread Width The distance from the outer edge to the inner edge of the tread Tread Radius af m T
98. the tire during normal operation YOKOHAMA s A tire is designed to contain the air pressure that carries the weight of the vehicle and load Radial tires consist of the sidewall tread shoulder and bead areas Unique combinations of rubber compounds and innovative construction methods cause all of the tires individual elements to adhere to their surrounding components resulting in a single product The technological advancements in Yokohama s tires offer better handling ride comfort traction treadwear and fuel economy than ever before SUPERIOR CASING PROTECTION Block shaped stone ejectors prevent stones from traveling to the bottom of the grooves reducing damage to the casing by 25 to ensure greater durability and retreadability DURABLE PROTECTIVE SIDEWALL Enhanced sidewall protector bars help shield the casing from scrubbing and curbing while delivering a smooth comfortable ride at highway speeds LONG LASTING TOUGHNESS An ultra wide top steel belt increases rigidity across the entire tread surface for enhanced durability and to avoid casing damage Belt edge cushion firmly bonds steel belts to reduce strain and provide longer casing life Specially designed inner liner helps maintain proper inflation and protects steel belts from oxidation by minimizing air seepage Contoured bead area promotes uniform seating around the entire rim reduced friction and a smoother ride 7 YOKOHAMA TRUCK TI
99. these vehicles while in operation Mathematically determine the mean or average weights per axle of these weights and divide that value by the number of tires on that axle to determine actual tire loading LONGER WEAR amp LOWER 2 Determine minimum cold inflation pressures for each tire per axle Use the actual load per tire per axle to determine the cold inflation pressures for the tires by size ply and type The actual tire load should be compared to the tire load limits on the chart for the particular tire size and ply rating The corresponding recommended cold inflation pressure is indicated for the load in the chart heading n all cases the tire load limit on the chart should be the same or a larger amount than the actual determined tire load for the ply rating of the tire the actual tire loads are heavier than the ply rating of the applied tire it may be necessary to install a tire with a higher ply rating ie Use the determined inflation pressures as minimum inflation values to set up the vehicle for improved handling In all cases the determined inflation pressures based on actual load conditions should be considered minimum pressures Operational air pressures can be set higher but in no circumstances should they be set lower AN EXAMPLE WITH ACTUAL VEHICLE LOADS AND TIRE SIZES INSUFFICIENT LOAD CARRYING CAPACITY Steer tires installed on this vehicle were insufficient to carry the load A h
100. tire mileage Thick Undertread protects against cuts for excellent retreadability Newly Developed Steel cord Top Belt helps protect against penetration damage and rust while minimizing tread distortion and heat generation Special Tread Compounds resist fatigue chipping and scaling in rugged off road conditions wem St mm Minimization 1Y053 replaces Michelin XDY 3 XDY 2 Goodyear G177 Bridgestone L320 ply nnE NEE INFLATED DIMENSIONS LOADED DIMENSIONS MAX LOAD CAPACITY AT vun size PART patine weicht MEAS ALT OVERALL OVERALL em SECTION STATIC RPM ET MAX NUMBER oi LBS WIDTH DIAMETER 1 32 WIDTH RADIUS lB PSI LB PSI KGAPA KGAPA SPEED NCH CINCH ONCH ONCH NCH SINGLE DUAL SINGLE DUAL MPH 825 0535 94 10 am 750 107 422 a 118 i98 494 85100120 605912 30092 27250630 e ms me 18H mm 85 750 998 442 3 117 207 n mem erem 82509630 een 65 YOKOHAMA ss On and Off Highway All Position The 501ZA is an excellent choice for on and off highway use It features a unique compound for excellent cut and chip resistance when hauling heavy loads off the beaten path yet it s also engineered to effectively dissipate the heat generated by extended highway driving And because it utilizes our exclusive Zenvironment technology the 501ZA delivers longer treadwear with low rolling resistance FEATURES AND BENEFITS Our innovative Zenvironment Cap and Base Compound produces a stronger yet more p
101. turing a multi season rubber compound and optimized tread pattern it overcomes wet muddy and snowy conditions while providing long lasting tread life With the SY767 you not only get great all weather grip you get great mileage too FEATURES AND BENEFITS Extensive Grooves and Sipes maximize biting edges for enhanced traction while closed sipes increase traction without reducing block rigidity Extra wide Tread matched with 26 32 tread depth promotes great handling stability and long even wear Deep Wide Grooves efficiently evacuate water to maximize contact with the road surface Thick Undertread provides cool running for extended casing life Michelin XDN2 Goodyear G305 Bridgestone M725 INFLATED DIMENSIONS un LOADED DIMENSIONS MAX LOAD CAPACITY AT OVERALL OVERALL pepy SECTION STATIC RPM GOOUNELAUUNEHESGOHE MAX WIDTH DIAMETER 1 32 WIDTH RADIUS LBPS La KGKPA KG KPA SPEED ONCH NOH ONCH INCH SINGLE DUAL SINGLE DUAL MPH 108 D I 21 23 e 8058105 5400105 28000720 26500700 75 108 na 5 e 188 92 66100120 60050120 300680 272500 5 108 488 5 121 25 42 68100105 60050105 30000720 27256720 75 109 9 5 91 208 42 71600120 66100120 3250060 300080 75 TRUCK STEEL HADIA Line Haul Regional Drive The 1Y287 truck commercial tire combines all season traction with all position capability Engineered with the latest Yokohama technology the TY287 provides long even wear and excellent traction in any weather
102. ulder ripping and tearing and lowers the cost per mile in abrasive applications also provides excellent lateral stability and water dispersion and improved performance and traction Heavy duty construction designed to meet demands of in city and regional applications Sar Strineneray Minimization RY023 replaces Michelin XZA XZE Goodyear G169 Bridgestone R250 ply tine BIMSIZE INFLATED DIMENSIONS eu LOADED DIMENSIONS MAX LOAD CAPACITY AT size PART atin weight MEAS ALT OVERALL OVERALL pepTH SECTION STATIC RPM POEBHINEPATIUNIERESSURE MAX NUMBER oi 88 WIDTH DIAMETER 1 32 WIDTH RADIUS are 8 KGKPA van SPEED mu INCH INCH INCH ONCH SINGLE DUAL SINGLE DUAL MPH 31575R175 emm 16H 83 am 600 675 85 308 16 91 148 874 28059185 45400125 21000060 206960 75 23575R175 0226 18 71 87 675 780 84 317 16 100 146 851 en 56756125 2775000 25758860 75 257 85 mem 1 675 8 a EH 16 94 148 852 3540005 315995 16500660 15500660 75 34570R195 02289 16 m 750 82 97 23 16 104 155 62B 45400110 43000110 20600760 19500760 75 36570R195 028 146 8 750 am 103 ER 7 ma 188 e 26810 45758110 29000760 21200760 75 28570R195 0287 16H 95 825 750 900 114 3561 7 124 163 597 63950120 60056120 29000630 27250830 75 257925 02227 em 9 79 ap 1 6 18 107 171 20 250912 50708120 25000690 220860 25 257825 em 146 nm am 8 mu 402 19 124 187 520 6175010 56756100 28000760 25750760 75 257925 em
103. uring vibration 5 Check tire wheel rim assembly balance Adjust as required If unable to balance completely deflate tire unseat tire beads and rotate tire 180 degrees on the wheel rim Inflate rebalance and reinstall on vehicle 6 If vibration is not eliminated measure tire and wheel rim assembly for excessive lateral or radial run out Replace as required 7 Rebalance tire and wheel rim assembly and test drive vehicle BALANCING GUIDELINES 1 Equipment used to balance a tire and wheel rim assembly must be accurate well calibrated and professionally operated If the tire balancer tolerance is not within specification it must be calibrated N To aid in proper balancing some new Yokohama tires have a yellow mark on the sidewall This mark identifies the lightest weight point of the tire See Match Mounting section e Clean deposits of foreign materials from the inside of the wheel rim Remove any stones from the tire tread to avoid operator injury and obtain a good balance B Carefully follow the balancer manufacturer s instructions for proper mounting techniques on different types of wheels Use coated weights on aluminum wheels rims to prevent damage to the finish YOKOHAMA GUIDELINES General guidelines and acceptable limits for radial run out on TBS tires are listed below ROTATING ASSEMBLY BALANCE AND RUN OUT LIMITS Tre Poston 185 The Road Construction Wide Base V
104. ven treadwear Stress Wear Control Groove SCG reduces contact pressure at the tread edge providing increased resistance to shoulder step down wear and enhancing long even wear particularly at the shoulder area Stone Ejectors deep inside the tread grooves keep stones from embedding into the tire to minimize drill damage for increased tread durability and casing life SmartWay SENPA Verified fe RYB17 replaces Michelin XZA 3 Goodyear G397 Bridgestone R280 ply ng RMSZE INFLATED DIMENSIONS ex LOADED DIMENSIONS MAX LOAD CAPACITY AT tine size PART pamine weight MEAS ALT OVERALL OVERALL peprH SECTION STATIC RPM BOLD INDE STIGNIERESS URE MAX NUMBER Toi LBS WIDTH DIAMETER 1 32 WIDTH RADIUS lB PSI are KGKPA KGKPA SPEED mu ONCH ONCH INCH ONCH SINGLE DUAL SINGLE DUAL MPH 29575Re25 em 146 109 am 85 109 au 18 120 187 s 61750110 emeng 28000760 25750760 25 me me 18 14 85 750 4 413 18 120 185 s 61750105 550615 28000720 26506720 25 2875045 emm 146 mg 8 108 413 18 118 198 499 61750110 5675010 28000760 25758780 25 1885 ag 18 e 825 7580 mu 433 8 120 22 481 eem BOO5e105 30000720 225920 75 SmartWay Verified YOKOHAMA sa RYOSSA TRU EEL RADIA Stress Equalizer Ribs S E R at the shoulders fight irregular wear Highway Line Haul Steer and All Position One of Yokohama s best selling tires RYO83A is a five rib steer axle radial for on highway long haul operations The RYO83A is a solid perfo
105. verse line of truck and bus tires in a wide range of sizes and styles for all wheel positions and all applications We also offer an excellent selection of the popular low profile and wide base sizes YOKOHAMA TBS PRODUCT LINE BY APPLICATION YOKOHAMA S LOW PROFILE DESIGNS Low profile tires are rapidly gaining popularity because of the many advantages they offer over the conventional tire Shorter more responsive sidewalls contribute to improved handling and exceptional cornering stability Lighter weight allows more payload Lower height increases cargo volume potential The larger tread contact area and more uniform ground pressure result in less tread distortion Lower profile means better overall vehicle stability Lower rolling resistance WIDE BASE TIRES Yokohama has developed wide base tires for on road as well as off road applications They are especially cost efficient in applications for heavy load carrying vehicles such as cement trucks or for dual replacement on line haul trailers LONG HAUL REGIONAL HAUL PICK UP amp DELIVERY ON AND OFF HIGHWAY 251 Ben Standerd Wide Base Premium Sandsrd Wide Base Conventional Low Platform Premium Standard Wide Base 85 35 817 817 10328 E mess D AS wem 10 3 RY253 5 RYOB3A 10428 MY507A RES 9212 50124 729MY547 wem 22 81103 Y785R De MYBg7W Si 7858 7032 de mam mam ii Ts77 wii in maa Teg7 617 wem
106. way tire that delivers exceptional fuel economy great traction and superior retreadability The TY517 provides decreased rolling resistance long casing life and long even wear This is a highly capable drive axle tire FEATURES AND BENEFITS 28 32 Rib block Tread Depth with full depth grooves delivers long wear and traction grabbing power for the long haul with no compromises Mud and snow rated for drive power in the toughest of road conditions STEM 2 Technology for extended casing life retreadability and durability Rock Ejecting Center Groove Platform enhances casing life and retreadability Three Large Circumferential Grooves provide extra wide self cleaning V shaped water dispersing grooves for improved lateral stability and long even wear TY517 now available with MC technology for even better fuel efficiency 2 SmartWay wi BS Concept sanEnemm Minimization Verified TY517 replaces Michelin XDA 3 Goodyear G362 Bridgestone M720 M726 RIM SIZE INFLATED DIMENSIONS eu LOADED DIMENSIONS MAX LOAD CAPACITY AT tine size PART patie welent MEAS ALT OVERALL OVERALL Ad SECTION am RPM ERR MAX NUMBER uni LBS WIDTH DIAMETER 1 32 WIDTH RADIUS LE PSI org KGKPA KGKPA SPEED INCH NCH INCH INCH NCH SINGLE DUAL SINGLE DUAL MPH 9575R225 am 169 4 am 825 4 407 28 54 481 se BI75 110 56750110 28000760 25750760 75 mees 5721 184 M8 am 85 14 407 28 1804 181 89 eg oam 30000
107. y s circumferential centerline The tire wheel assembly has a side to side wobble or wheel shimmy HEAVY OR LIGHT SPOT BALANCING Corrected either statically or dynamically depending on the type of imbalance Static Balance Achieved with a bubble balancer but does not correct for dynamic imbalance Dynamic Balance Achieved with a spin balancer where the tire wheel assembly is balanced both statically and dynamically TRUCK TIRE BASICS RADIAL OR LATERAL RUN OUT IMBALANCE This results from improper bead seating on the rim or the placement of components Improper bead seating is usually the result of improper mounting or the use of improperly made wheels A small degree of this imbalance is acceptable but too great a run out causes vibration and excessive tire wear Radial run out An out of round situation where vibrations are produced as the wheel spindle moves up and down Lateral run out A side to side or wobbling movement of the tire and wheel It is less common than radial run out Sensitivity of a vehicle to vibration from radial run out is four to eight times that of wobble from lateral run out RUN OUT BALANCING Corrected depending on whether it is radial or lateral run out Radial run out balancing Achieved by rotating the wheel and tire assembly two stud positions on the hub or by rotating the tire 180 degrees on the wheel If run out is still over specification check wheel run out and mark the low
108. ze and type they must be scrapped 1 1 E Stand clear whenever handling multi piece rims wheels Remain out the wheel and air blast trajectory 15 Never apply heat to a multi piece rim wheel or rim wheel component 16 Current safety and matching charts or rim manuals containing instructions for the type of wheels being serviced must be available in the service area REFERENCE INFORMATION The Safety Precautions for Mounting and Demounting Tube Type Truck Bus Tires Chart and the Multi Piece Rim Wheel Matching Chart can be obtained from any of the following sources U S Department of Labor OSHA Publication Office 200 Constitution Ave N W Room N3101 Washington D C 20310 202 523 9667 17 YOKOHAMA The Rubber Manufacturers Association 1400 K Street N W Washington D C 20005 202 682 4800 Occupational Safety amp Health Admin See your local phone directory Look under U S Government Current rim wheel manuals containing instructions for handling rims wheels are available direct from rim manufacturers or from local wheel and rim distributors Current training videos are also available from tire and rim manufacturers and through The Maintenance Council of the American Trucking Associations 200 Mill Road Alexandria VA 22314 phone 800 ATA LINE or 703 838 1763 TRUCK TIRE BASICS SINGLE PIECE RIMS WHEELS SAFE OPERATING PROCEDURES 1 Tires must be completely deflated by rem

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