Home
Service Manual for Industrial V-Belt Drives Service Manual for
Contents
1. 31 e Heat 24 27 30 s IL El 31 011 amp 27 30 e Storage A 29 GROOVE Inspection of 5 6 19 24 25 GUARDS Drive 15 30 31 HEAT Effect and Measurement of e 12 24 27 30 Bearing EE 12 18 19 34 35 geleet 21 30 BEE et 20 IDLERS Backside 35 IMPULSE LOADS 25 INSPECTION e Bearing 19 12 20 9 5 EE 5 6 17 e Sheave 5 6 8 16 19 19 INSTALLATION 9 Belt 4 7 9 15 36 37 39 BIONDO EE 21 6 9 16 19 21 9 Tension 5 9 19 19 33 37 39 39 Take Up data 36 INSUFFICIENT 35 MATCHING 7 24 MISALIGNMENT Sheave 6 8 16 17 19 MISMATCHING Apparent 16 18 24 MISPLACED SLACK 15 MIXED BRANDS Use of 7 24 MOISTURE Excessive 31 MOUNTING Sheave 6 9 16 19 21 NEMA Sheave Standards 35 OIL and GREASE uere rotto ette 30 OVERBELTED DRIVE 2 33 OVERHUNG 1 0
2. gt X X X 09 lt lt 15 lt lt lt gt lt Note Backside Idlers are detrimental to V belt service life Another problem caused by sheaves that are too small is overheating of motor bearings or even bent shafts NEMA publishes minimum recommended sheave diameters for use with electric motors to avoid excessive bearing loads Table B shows these minimums for the most common motor types General purpose motors having continuous time rating with the frame sizes horsepower and speed ratings listed in the following are designed to operate with V belt sheaves within the limiting dimensions listed Selection of V belt sheave dimensions is made by the V belt drive vendor and the motor purchaser but to assure satisfactory motor operation the selected pitch diameter shall be no smaller than the dimensions listed on the next page 34 VISIT OUR WEB SITE AT WWW CLARKTR COM FOR MORE INFORMATION CALL CLARK TRANSMISSION 973 227 4422 Troubleshooting Design Problems CARLISLE Table B Application of V Belt Sheave Dimensions to General Purpose Motors V belt Sheave Integral Horsepower Motors Conventional Narrow Polyphase Indcuction A B C D amp E 5 amp 8V Minimum Minimum Horsepower at Pitch Outside Frame synchronous Speed Rom Diameter Diameter Number 3600 Inches Inches NEMA Standard MG1 14 42 A 4 Insufficient wrap on the small sheave can require excess
3. 19 34 35 OVERLOADED 33 OVER TENSIONING 21 33 35 40 Topic Pages PITCH DIAMETER reder 34 35 PRYING BELTS ON DRIVE 7 15 RAW EDGE BELTS see COGGED V BELTS REPLACEMENT GHEGKLIST s 9 EIS SORTIE 8 20 SAFETY EE 3 5 20 30 SEATING V belt 8 20 24 SELECTION 23 SHEAVE Alignment 6 8 16 BUSRING RR 21 Cleaning 5 e Damage 6 18 21 32 e 5 34 35 o NSpection 5 6 16 18 25 9 Installation 6 8 16 19 Woar 6 18 25 iC DR 39 SHIELDS Drive 15 30 31 SHOCK LOADS ito ertet 15 25 SIDEWALLS EE 2 31 6 18 31 SIGHT METHOD Tensioning 20 SLIPPAGE Causes 12 18 19 20 30 31 35 SOUND METHOD Tensioning 20 SPLIT TAPER BUSHINGS 21 510115 12 20 STATIC DISSIPATION 24 27 553 EB gC EE 29 21 12 0587 24 33 TAKE UP see TENSION TEMPERATURE s 24 27 30 24
4. SMS SS WS eg RES SSS NESS CN CN st NR CN N NR O 2 0 0 EMRE PER PATS RANTES EILS SION 973 227 4422 1 6 7 10 11 12 13 14 15 Power Wedge Cog Belt 3VX 5VX 8VX WER Space saving V Belt transmits higher HP and gives longer life for maximum savings zT TETUR a LLL LLL LIE Rs L Super Power Wedge V Belt 5V 8V 72 AMEN Designed for lower cost more compact multiple belt drives Wedge Band R3V R5V R8V R3VX R5VX R8VX 3 5 Carlisle s Power Wedge belt banded design Py EY ee Eliminates whip and turnover on narrow drives a Wedge Band Chipper Drive Belt R5VL Specially designed and constructed to meet the unique demands of the forest products industry Ideally suited for chipper SawS exem debarker drives head rigs and hogs Variable Speed Cog Belt 1228V through 6136V Series Carlisle Variable Speed Cog Belt offers the same high standard of quality in replacement belt that Carlisle eeh provides to the OEM 0 Super Blue Ribbon V Belt The finest wrapped belt in the industry Super V Belt A B C The revolutionary raw edge belt from Carlisle that blows the cover off conventional wrapped belts due to its unique construction ee ee o Super Vee Band RBP RCP RDP Carlisle s Supe
5. 3 Parallel shafts are parallel sheaves not in line To Check Use straightedge or string near sheave centers To Correct Loosen sheave so it slides easily on shaft until all 4 points touch straightedge Retighten sheave in position Important Sheave should be mounted as close to bearing as possible to reduce overhung load on bearing Re locate equipment if necessary VISIT OUR WEB SITE AT WWW CLARKTR COM FOR MORE INFORMATION CALL CLARK TRANSMISSION 973 227 4422 A 4 Worn or damaged sheaves are an even greater cause of rapid belt wear slippage and vibration Badly worn sheaves can cause over tensioning of the drive to prevent slippage indirectly causing over heated bearings and shaft damage If pieces of the sheave flange are missing it will result in badly worn sidewalls of the belt and the resulting sheave imbalance can damage bearings and create a safety hazard When only some of the grooves are worn more than others the effect is that the belts appear to be mis matched It also causes differential driving where only some of the belts are carrying the entire load of the drive In the case of banded belts worn grooves cause the belts to ride too low in the grooves thus causing the tie band to wear against the sheave flanges between the grooves In severe cases this can have the same effect as a circular blade cutting the band and separating the belts Sheave templates are available from your Carlisle distrib
6. d Abrasive Wear 7 Excessive moisture can penetrate the fabric covering of a V belt causing deterioration In addition a large amount of water can reduce friction and cause slip page Belt drives should be protected as much as possible when used outside or when subject to spray from washdown hoses etc Belt tension should be inspected regularly Wer Y M XS v A A A A A Vide Kee 31 FOR MORE INFORMATION CALL CLARK TRANSMISSION 973 227 4422 JON Troubleshooting Design Problems When normal corrective measures as discussed in the previous sections do not seem to produce the desired results an inherent design problem may be the culprit The solutions to these are best left up to the plant engineering department or a Certified Drive Specialist However the dis cussion presented in this section will help identify symptoms caused by design problems 32 VISIT OUR WEB SITE WWW CLARKTR COM FOR MORE INFORMATION CALL CLARK TRANSMISSION 973 227 4422 Troubleshooting Design Problems CARLISLE A 1 Underbelting a drive using fewer belts than recommended by good design practice results in excessive tension in each belt on the drive This is commonly evidenced by excessive stretching which requires frequent take ups to prevent slippage Another warning sign can be repeated belt breakage In many cases underbelting can be corrected simply by u
7. 6 2 1200 3600 44 65 75 80 9 0 1200360 52 80 90 95 10 0 1200 3600 12 0 1200 3600 13 0 900 1800 90 120 130 140 15 0 17 0 900 1800 25 0 900 1800 28 0 30 0 34 0 36 0 11 0 eo E E 13 0 900 1800 15 0 17 0 25 0 28 0 700 1500 30 0 340 400 1000 31 0 32 0 36 0 NOTE These are minimum deflection force values New belts should be installed at two times these values Used belts should be between 1 0 and 1 5 times these values Power Wedge Cog Belt 39 VISIT OUR WEB SITE AT WWW CLARKTR COM FOR MORE INFORMATION CALL CLARK TRANSMISSION 973 227 4422 CARLISLE Topical Index Topic Pages ABRASION 31 ALIGNMENT Sheaves 6 8 16 BANDED BELTS 24 25 26 31 BEARINGS Overheated 18 19 21 33 34 BUSHINGS Installation of 21 CHECKLIST Belt Installation 9 OHEKSMATE 24 26 27 COGGED V BELTS 2 23 24 226 30 33 34 COILING of BELTS erts 29 COMPRESSION SECTION of V BELTS 2 CORD 5 2 15 DESIGN Drive Problems 12 32 33 34 35 DISHING Sheave Groove see SHEAVE Wear DRESSING Belt 1 eia 31 EFFIOIEN E 3 ELEMENTS OF BELT CONSTRUCTION 2 ENERGY see EFFICIENCY ENVIRONMENTAL CONDITIONS ADEGSION 12 31 e Foreign objects in drive
8. Remove old belts Inspect belt wear patterns for possible troubleshooting Inspect drive elements bearings shaft etc Inspect sheaves for wear and clean Check sheave alignment preliminary Select proper replacement belts Install new belts Tension belts Check sheave alignment final Replace guard Start drive look amp listen Re tension after 24 hours VISIT OUR WEB SITE AT WWW CLARKTR COM FOR MORE INFORMATION CALL CLARK TRANSMISSION 973 227 4422 Section 2 Corrective Maintenance and Troubleshooting of V Belt Drives The first section of this V Belt Service Manual outlined a step by step procedure for the installation of replacement V belts to help you prevent V belt maintenance problems The reason behind these steps is also fundamental in the daily inspec tion and maintenance of V belt drives Watching and listening will alert you to warning signs of trouble since one of the greatest advantages of V belt drives is the fact that belts and sheaves wear gradually You can spot potential problems in time to arrange a short scheduled main tenance down time instead of expe riencing a longer costly interruption of production when unexpected trouble occurs V belts may be thought of as being much like electrical fuses their unexpected failure is usually a signal that something else in the system is wrong Even their patterns of gradual wear can often indicate conditions
9. hand to bring the slack on one side of the drive Loosening the drive take up in advance makes this easy Right Do not force the belts on the sheaves by using a pry bar or by rolling the sheaves Now move sheaves apart until the belts are seated in the grooves and make preliminary tightening of the drive just until the slack is taken up Wrong VISIT OUR WEB SITE AT WWW CLARKTR COM FOR MORE INFORMATION CALL CLARK TRANSMISSION 973 227 4422 Section 1 CARLISLE Apply Tension A 7 A 8 All V belt drives must operate under proper tension to produce the wedging action of the belt against the groove sidewall A well established rule of thumb is that the best tension for a V belt drive is the LEAST tension at which the drive will not slip under peak load Most V belt problems are due to improper tensioning Several tools and methods are available to insure proper tensioning A simple and easy to use option is the Tension Finder available only from Carlisle Run the drive for about 15 minutes Then apply full load and check for slipping Should slipping occur further tension should be applied After the drive has operated under load long enough for the belts to become seated and adjusted approximately 24 hours it is a good idea to make a final tension inspection For a complete discussion on tensioning and slippage refer to Section 2 ZX 7 in this manual You have now completed a practical procedure
10. or Taper Lock types always follow manufacturer s instructions It is important to never lubricate the tapered surfaces before installing The lubrication will permit recommended torque wrench values to increase the actual force on the bushing and hub This usually results in cracking of the bushings at the bolt hole or keyway On flanged bushing types the flange should never be brought up flush with the sheave hub face A small gap between the two surfaces is normal When removing split tapered bushings start at the jack screw hole opposite the split to avoid cracking the bushing Cracked Bushing Foot Pounds Cap Screw Torque Wrench Size amp Thread Normal Applications For severe rock crusher type applications these values can be increased by a maximum of 50 On severe applications the bolt torque should be rechecked at periodic intervals during operation 24 VISIT OUR WEB SITE AT WWW CLARKTR COM FOR MORE INFORMATION CALL CLARK TRANSMISSION 973 227 4422 Troubleshooting Selection Problems The array of V belt types cross sections and lengths on the market today are all part of technological efforts to provide more efficient cost saving answers to your drive requirements This category is intended to point out how you can be sure of applying the best Carlisle V belt type to your applications 22 VISIT OUR WEB SITE WWW CLARKTR COM FOR MORE INFORMATION CALL CLARK TRANSMISSION 9
11. probably not over 140 F and therefore not beyond the operating range for most V belts However if you can t hold it for at least 5 seconds the belt temperature is probably well over 140 and heat is contributing to short belt life Further evidence of heat may be the appearance of small cracks on the underside of the belt What to do about excessive heat 1 Check for slippage see key number A7 2 Ventilate the drive or shield from heat source 3 Replace belts with specially compounded heat resistant belts such as Carlisle s Gold Ribbon or Power Wedge Cog Belt amp 3 Excessive oil or grease Standard construction V belts such as Carlisle s Super Blue Ribbon are compounded for moderate grease and oil resistance However an excessive amount can cause softening swelling and deterioration of the rubber com pounds as well as slippage What to do about oil or grease 1 When there is occasional exposure from spillage or leakage the belts and sheave grooves should be cleaned with a mixture of detergent and water after the drive has been locked out and cause of leakage corrected 2 When belts cannot be protected from oil specially compounded oil resistant V belts such as Carlisle s Gold Ribbon or Power Wedge Cog Belt should be used 30 VISIT OUR WEB SITE AT WWW CLARKTR COM Troubleshooting Environmental Problems S 4 Never apply so called belt dressings to V belts These com pounds are usually ma
12. and allows more cord width VISIT OUR WEB SITE AT WWW CLARKTR COM FOR MORE INFORMATION CALL CLARK TRANSMISSION 973 227 4422 V Belt Drive Advantages CARLISLE V belt drives provide many maintenance advantages that help in your daily struggle to reduce equipment repairs and to hold forced downtime to the lowest possible level They are rugged they will give years of trouble free performance when given minimal attention even under adverse conditions 2 They are clean require no lubrication They are efficient performing with an average of 93 95 efficiency 4 They are smooth starting and running 10 hey cover extremely wide horsepower ranges They permit a wide range of driven speeds using standard electric motors They dampen vibration between driving and driven machines They are quiet They act as a safety fuse in the power train V belts and sheaves wear gradually making preventive and corrective maintenance simple and easy VISIT OUR WEB SITE AT WWW CLARKTR COM FOR MORE INFORMATION CALL CLARK TRANSMISSION 973 227 4422 Section 1 CARLISLE Preventive Maintenance and Installation of V Belt Drives You will notice Reference Key Numbers such as 1 appear throughout this section These refer to a more detailed discussion with illustrations relating to the subject in Section 2 Corrective Maintenance and Troubleshooting Safety First Before
13. doing any maintenance work on power drives be sure the controlling switch is in the OFF position locked out and tagged Follow your plant s safety rules VISIT OUR WEB SITE WWW CLARKTR COM Gr MORE we CALL CLARK TRANSMISSION 973 227 4422 reventive Maintenance and Installation of V Belt Drives Relieve Belt Tension After removing the drive guard loosen the drive take up and move the sheaves closer together to facilitate the removal of all old belts and to insure installation of the new belts without damage Inspect Drive Elements AN 71 7A 6 This is a good time to service the take up rails by removing any rust and dirt and lubricating as necessary so tensioning of the new belts will go smoothly and easily You now also have an excellent opportunity to inspect and replace faulty or damaged machine elements such as worn bearings and bent shafts This procedure not only reduces the likelihood of future mechanical trouble but insures maximum service from the new belts you are about to install Sheaves should be carefully cleaned of any rust and foreign material A wire brush followed up with a shop cloth will usually do the job VISIT OUR WEB SITE AT WWW CLARKTR COM FOR MORE INFORMATION CALL CLARK TRANSMISSION 973 227 4422 Inspect Sheaves JD 4 9 Sheave condition and alignment are vital to V belt life and performance New V belts should never be installed
14. for replacing V belts that should help you AVOID problems with your V belt drives The check list on page 9 serves to summarize the points discussed in this section Check Sheave Alignment Final A 3 One of the advantages of V belt drives is the fact that perfect alignment of sheaves is not critical to the operation of the drive V belts tolerate mis alignment of up to 1 16 inch per 12 inches of shaft center distance However the closer you can come to perfect alignment the better Laser Alignment A 3 Use a laser alignment tool or straight edge to check alignment The straight edge should make contact at four distinct points along the outside perimeter of both sheaves Gontact points d ur un gir GE Ce J E EU a ES Straight edge Laser alignment tool Refer to Section 2 A 3 for complete discussion of proper alignment procedures Note Sheaves should always be mounted as close to the bearings as practical to avoid excessive loads on bearings and shafts 8 VISIT OUR WEB SITE AT WWW CLARKTR COM FOR MORE INFORMATION CALL CLARK TRANSMISSION 973 227 4422 Preventive Maintenance and Installation of V Belt Drives V Belt Installation Check List 1 UUOUUO 10 11 112 113 114 15 116 Cut off and lock out power source Observe all other safety procedures Remove belt guard Loosen motor mounts Shorten center distance
15. key number A 3 DON T mix old and new belts on a drive They cannot be matched CIME GOLD RIBBON coG BELT nevess MAIDEN me CAMEE GOLD COG BELT USA me A 3 Mismatched belts or mixed brands from different manufacturers cannot be matched together and will not deliver the service life they should Although all manufacturers use similar belt numbering systems different brands with the same number will differ slightly in dimensions and are not capable of being mixed in a set Also construction differences cause them to ride differently in the grooves and to stretch differently It should be noted that the majority of complaints regarding belt matching are found to be due to other causes such as misalignment and sheave wear These factors should always be checked if belts seem to be mismatched Carlisle belts branded with the Chek Mate logo do not require the use of matching codes but all belts in the set must bear this symbol chek mate 24 VISIT OUR WEB SITE AT WWW CLARKTR COM FOR MORE INFORMATION CALL CLARK TRANSMISSION 973 227 4422 A 4 Machine induced vibration or shock loads frequently can cause V belts to whip or even jump off the drive creating a safety hazard and of course damaging the belts On multiple belt drives this whipping can be reduced or eliminated by using banded V belts A banded V belt consists of from 2 to 5 individual V belts joined together with a bonded reinforc
16. needing corrections or improvement VISIT OUR WEB SITE AT WWW CLARKTR COM emm MORE INFORMATION CALL CLARK TRANSMISSION 973 227 4422 orrective Maintenance and Troubleshooting of V Belt Drives CARLISLE How to correct maintenance problems by using Carlisle s Quick Reference Troubleshooting Guide The V Belt Drive Troubleshooting Guide presented on the following pages represents knowledge acquired by Carlisle in the development and manufac ture of V belts for almost 100 years This quick reference guide lists the most common symptoms or warning signs of drive problems and then indicates possible causes Each possible cause is further referenced by a key number such as A 1 which indicates where you may find the cure in a more detailed discussion of the subject in this section of the manual These discussions are grouped into four major sections gt Troubleshooting INSTALLATION Problems gt Troubleshooting SELECTION Problems gt Troubleshooting ENVIRONMENTAL Problems gt Troubleshooting DRIVE DESIGN Problems Practical non technical troubleshooting tips are included to help you to quickly identify and correct suspected problems VISIT OUR WEB SITE AT WWW CLARKTR COM FOR ok INFORMATION CALL CLARK TRANSMISSION 973 227 4422 Corrective Maintenance and Troubleshooting of V Belt Drives CARLISLE CURES Sheaves Too Far From Bearing Rapid Sidewall Wear Worn Cover On B
17. 27 30 IA AN 20 TEMPLATE Sheave 18 TENSILE GORDS 2 2 2 15 TENSIOMETER 2 dase iss 38 TENSION Belt 8 19 20 21 31 33 35 37 39 39 e Tension Finder 37 38 TIE BAND nnnm 15 17 25 91 TORQUE WRENCH Use of 21 TOUCH METHOD to Determine Belt 30 e 20 TENSION t rtc aa 8 20 TROUBLESHOOTING GUIDE 12 13 TURNOVER Belt entes 15 25 91 UNDERBELTED DRIVE 33 VIBRATION V belt 3 12 10 2 1 20 00 V Belt Tensioning tools 37 38 WOBBLE Sheave 6 21 WRAP Insufficient 35 VISIT OUR WEB SITE AT WWW CLARKTR COM FOR MORE INFORMATION GALLIC LARK TRANSMISSION PT Cont 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Thoro Twist V Belting 3L A B C For use as an emergency replacement where endless V belts cannot be installed QD Bushings Standardized for interchangeability Tapered and fully split through bore length for equivalent of interference fit Power Wedge QD Sheaves 3V 5V 8V High capacity cast iro
18. 73 227 4422 Troubleshooting Selection Problems TET 1 Worn V belts may have gotten that way simply because they have delivered the service life built into them Carlisle like other manufacturers strives to build V belts with a balanced construction so each element of the belt will last as long as all other elements But the wide variety of industrial applications environmental conditions and maintenance practices makes this impossible to achieve However the expected life of an industrial V belt on a properly designed drive is 3 years A 2 Using the wrong V belt cross section or type can create problems for you and it s not hard to do since many have similar dimensions For example the following Carlisle V belts have approximately the same top width 5 8 and length 85 And yet the horsepower ratings of these belts range from as little as 2 2 HP per belt to as much as 11 9 HP per belt on a 5 diameter sheave and 1750 RPM motor 5 8 11 32 5L850 Durapower Light Duty FHP V Belt 5 8 2 11 32 58 850 XDV Premium V Belt 21 32 u 7 16 BP82 Super Blue Ribbon V Belt 21 32 7 16 BX82 Gold Ribbon Cog Belt 5 8 17 32 850 Power Wedge Cog Belt 23 VISIT OUR WEB SITE AT WWW CLARKTR COM FOR MORE INFORMATION CALL CLARK TRANSMISSION 973 227 4422 V belt survey of your drives by Carli
19. RIVE SERVICE MANUAL has been prepared with the double purpose of Helping you AVOID V belt drive problems by presenting a step by step V belt replacement procedure Section 1 Preventive Maintenance and helping you SOLVE V belt drive problems by offering troubleshooting techniques Section 2 Corrective Maintenance SUBJECT PAGE V BELT CONSTRUC TION Eege 2 V BELT DRIVE ADVANTAGES 3 SECTION 1 PREVENTIVE MAINTENANCE and INSTALLATION of V BELT DRIVES 4 9 V BELT INSTALLATION CHECK LIST E 9 SECTION 2 CORRECTIVE MAINTENANCE and TROUBLESHOOTING of V BELT DRIVES 10 35 V BELT DRIVE TROUBLESHOOTING GUIDE 12 13 TROUBLESHOOTING INSTALLATION PROBLEMS 14 21 TROUBLESHOOTING SELECTION PROBLEMS 22 27 TROUBLESHOOTING ENVIRONMENTAL PROBLEMS 28 31 TROUBLESHOOTING DESIGN PROBLEMS eese 32 35 INSTALLATION AND TAKE UP DATA A 36 V BELT TENSION 37 38 V BELT DEFLECTION FORCE VALUES E 39 TOP el RE 40 A WARNING SAFETY NOTE Failure to follow recommended application information and recommended procedures for installation care maintenance and storage of products may result in failure to perform properly and may result in damage to property and serious bodily injury Make sure that product selected for any application is recomm
20. SMISSION 973 227 4422 ZA 3 Misaligned sheaves can cause rapid wear of the V belt side walls considerably shortening service life of both belts and sheaves Mis alignment can also cause separation of the tie band on banded belts or apparent mismatching of individual belts V belt sheave align ment should be within a tolerance of 1 16 per 12 of drive center distance The three basic types of sheave and shaft misalignment are shown below with suggested methods for checking and correcting each type Note that all 3 types may exist at the same time Alignment should be checked and corrected in the order given Sidewall Wear Horizontal Vertical Angular Angular Parallel VISIT OUR WEB SITE AT WWW CLARKTR COM FOR MORE INFORMATION CALL CLARK TRANSMISSION 973 227 4422 Troubleshooting Installation Problems 151 1 Horizontal Angular shafts in same horizontal plane but not parallel To Check Use straightedge or string near sheave centers To Correct Loosen motor mounting bolts and rotate motor until all 4 points touch straightedge 2 Vertical Angular shafts in same vertical plane but not parallel To Check Place straightedge about radius from the outside diameter of both sheaves as shown 1 Repeat on opposite side of shaft 2 Straightedge should touch 4 points indicated in each position To Correct Use shims under motor base in front or rear of motor depending on type of correction required
21. STALLATION AND TAKE UP INCHES For Take Up Standard For Installation Subtract Add Length Designation BX amp BP CX amp CP DX amp DP All Banded Banded Banded Cross Sections 21 thru 35 36 thru 55 i 2 00 56 thru 85 2 00 86 thru 112 2 00 116 thru 144 12 10 148 thru 180 i 2 20 191 thru 210 225 thru 240 225 thru 300 315 thru 390 6 00 420 and over 5 of Belt Length 36 VISIT OUR WEB SITE AT WWW CLARKTR COM FOR MORE INFORMATION CALL CLARK TRANSMISSION 973 227 4422 Tensioning Carlisle V Belt Tension Tool STI Tanein ES TM User Instructions The Carlisle Tension Finder can be used to tension individual belts or V Bands The Tension Finder should be used only with Carlisle belt lines listed in Table 1 The Tension Finder should NOT be used with aramid cord or glass cord belts Use with these belts could result in damage to equipment AWarning Remove The Tension Finder from the belt before starting the drive Procedure Step 1 Install belts loosely on the drive Step 2 Apply enough tension to take the slack out of the belts Step 3 Scribe a line on the belt using the Tension Finder as a square For cog belts see the special instructions Step 5 With the line in the Start Slot attach the spring to the belt Note For cog belts the best place for the spring may be in a cog See special instructions Step 7 Determine the required slot f
22. T OUR WEB SITE WWW CLARKTR COM FOR MORE INFORMATION CALL CLARK TRANSMISSION 973 227 4422 A CIUT Troubleshooting Environmental Problems Environmental Protection can be as important for a V belt as for humans This section deals with the effect of adverse environmental conditions on V belts and how you can minimize these effects 28 VISIT OUR WEB SITE AT WWW CLARKTR COM FOR MORE INFORMATION CALL CLARK TRANSMISSION 973 227 4422 Troubleshooting Environmental Problems CARLISLE 1 Improper or prolonged storage can reduce service life considerably V belts should be stored in a cool dry place with no direct sunlight On shelves in boxes or piles the stack should be small enough to avoid excess weight and distortion on the bottom belts On pegs the longer belts should be coiled in loops of suitable size to prevent distortion from the weight of the belt The following guide provided by the RMA should be followed for optimum conditions Guide to Maximum Number of Coilings of V Belts of Storage Cross Section Inches of Coilings of Loops Under 60 0 None A AA 3V 60 0 to 120 0 1 and B 120 0 to 180 0 2 180 0 and up 3 Under 75 0 None BB C 75 0 to 144 0 1 and 5 144 0 to 240 0 2 240 0 and up 3 Under 120 0 None 120 0 to 240 0 1 240 0 to 330 0 2 330 0 to 420 0 3 420 0 and up 4 Under 180 0 180 0 to 270 0 E and 8V 270 0 to 390 0 390 0 to 480 0 480 0 and up One coiling re
23. ack Belt Turns Over Or Jumps Off Sheave Belt Soft Swollen _ d fe Belts Pried On Or misplaced Sac Belt Slips Squeals Spin Burn Belt Cover Split Underside Cracked Tie Band Damaged Repeated Breakage Belts Ride Too High Belts Bottoming Repeated Take up Necessary Belts Vibrate Excessively Or Appear Mismatched Bearings Are Hot Shafts Whip Or Bend Cracked Bushings Sheave Wobble le Betts Rubbing Guard _ _ k Indicates most common causes Indicates other possible causes 2 VISIT OUR WEB SITE WWW CLARKTR COM FOR MORE INFORMATION CALL CLARK TRANSMISSION 973 227 4422 emesa Je _ eweus peus uo dem reegen LO O Q eme e 22509 6 8 spueJg JO Seg peuojeuusi N ES ed 10 660 0 BuoJM el 13 VISIT OUR WEB SITE AT WWW CLARKTR COM FOR MORE INFORMATION CALL CLARK TRANSMISSION 973 227 4422 Troubleshooting Installation Problems As pointed out in Section 1 of this manual preventive maintenance by using proper installation techniques is important for long trouble free V belt service Occasionally however you will find it necessary to correct problems caused by improper installation This section deals with these problems and troubleshooting procedures VISIT OUR WEB SITE WWW CLARKTR COM 1 Prying or forcing V belts onto the sh
24. age reading of all belt DEFLECTION FORCE p tensions DEFLECTION q 3 Remove the Tensiometer and observe that the small O c ring has moved from its original setting at zero to the number of pounds required to deflect the belt Fig 2 4 Check this reading against the value of the deflection force in the V Belt Tensioning table page 39 38 VISIT OUR WEB SITE AT WWW CLARKTR COM FOR MORE INFORMATION CALL CLARK TRANSMISSION 973 227 4422 Tensioning CARLISLE V BELT TENSIONING AVERAGE TENSIONING VALUES RECOMMENDED MINIMUM FORCE PER BELT V Belt Deflection Force for Drive Speed Ratio Ibs Section 1 00 1 5 2 0 4 0 amp over 1800 3600 3 3 A 1800 3600 2 6 3 3 Super II AP 1800 3600 27 1800 3600 4 3 1200 1800 5 0 5 1200 1800 5 6 1200 1800 60 48 53 55 1200 1800 80 57 62 64 900 1800 70 65 70 80 900 2800 90 80 90 100 900 1500 900 1500 700 1200 3 3 1800 3600 4 2 1800 3600 5 0 4 6 5 3 1200 1800 46 52 58 60 6 9 1200 1800 50 54 60 63 7 1 1200 1800 60 60 64 67 ei 1200 1800 80 66 71 75 8 2 900 1800 13 0 900 1800 9 0 110 120 130 140 900 1800 14 0 700 1500 15 0 900 1500 20 0 900 1500 24 0 700 1200 27 0 700 1200 30 0 DP BX CX 1200 3600 3 0 3VX Super Blue Ribbon Gold Ribbon Cog Belt 1200 3600 3 6 1200 3600 4 2 1200 3600 5 1 1200 3600 5 7 1200 3600 69 50 54 56
25. and a recheck the next day are called for Touch V belts don t always squeal when they are slipping If slippage is Suspected a sure way of deter mining it is by stopping the drive lock it out and placing your bare finger against the inside of a sheave groove If slippage is pres ent it will generate enough heat so that you can t keep you finger on the groove If this is true and there is no outside heat source then the drive is probably slipping Assuming no sheave wear the drive should be tightened If the sheave is worn replace the sheave and tension normally Use the various tensioning tools that are available from Carlisle to assure proper tensioning 20 VISIT OUR WEB SITE AT WWW CLARKTR COM FOR MORE INFORMATION CALL CLARK TRANSMISSION 973 227 4422 Troubleshooting Installation Problems 11 A 8 Excessive tension on V belts can be even more detrimental than too little tension affecting not only the belts but also bearings and shafts Again the best rule is to apply only enough tension on the belts to keep them from slipping during startup or peak loading Some indicators of excessive tensioning but not always are Repeated belt breakage Overheated bearings Excessive vibration e Whipping or bent shafts A 9 Improper sheave and bushing installation can result in sheave wobble as well as causing bushings or sheave hubs to crack When installing split tapered bushings such as QD
26. ations of the bearing or equipment manu facturer Shaft condition should also be checked and replaced if necessary as bent shafts can be detrimental to bearings belts and sheaves as well as being a safety hazard due to the imbalance created Sheave wobble may be caused by bent shafts A 7 Insufficient belt tension vies closely with worn sheave grooves as the leading cause of V belt slippage and other problems This is often evi denced by spin burn The easiest and most practical way for maintenance personnel to judge proper belt tension is by the SST method Sight Sound and Touch Spin Burn VISIT OUR WEB SITE AT WWW CLARKTR COM FOR MORE INFORMATION CALL CLARK TRANSMISSION 973 227 4422 IN Sight While the drive is operating look for a slight bow or sag in the slack side of the belts This is normal and should appear more ECS noticeable under heavy load such as at startup or during the load cycles of an air compressor for instance Check the sheave grooves for wear Sound Properly designed V belt drives should not squeal or howl under peak load conditions such as on startup of a centrifugal fan If necessary stop the drive then start it again If a squeal is heard the belts should be tightened just to the point where they do not squeal under peak load Newly installed belts require about 24 hours to become fully seated in the grooves so a little extra tension
27. de from a petroleum derivative and can have a destructive effect on rubber com pounds and other components of the belt If belts slip check for adequate tension and or worn sheave grooves see A 4 A7 amp 5 Abrasive conditions from sand dust or grit can accelerate wear of both belts and sheaves This is especially true when slippage is present Belt selection can be an important factor Experience has shown that raw edge constructions reduce this wear because they reduce the sandpaper effect caused by slippage Drives should be well shielded against excessive abrasive particles as much as possible S 6 Foreign objects such as wood chips can create havoc with V belt drives Belt breakage and turnover are the most common symptoms Shielding the drive is a necessity Belt guards with expanded metal screening are often used but venti lation is sometimes sacrificed possibly requiring additional cooling Banding belts are often effective since they eliminate belt turnover d 9 BH BAYA B nm d L Lt N V V A 9 S A8 LA Vie Ve WW AAA QUA MM WM t t 2 XXX V Wi A NN NNI Vd deich ail d d d A A VW A A A MM XN NAR NO AA AA i WY WALL ai S KAX A 4 Gi A
28. eaves can and usually does break some of the load carrying tensile cords see photo on page 7 Section 1 When this happens the belt may either break or turn over in the groove usually within the first few minutes of operation This method of installation may be evidenced by a rupture or split in the wrapped cover of the belt caused by the prying tool or sheave edge Broken cords are easily identifiable on raw edge V belts because it is usually the edge cords that break first FOR MORE INFORMATION CALL CLARK TRANSMISSION 973 227 4422 Misplaced Slack can also cause belt breakage again usually on startup This occurs on multiple belt drives when all of the belt slack is not brought to the same side of the drive before tensioning If some belts are tight on one side and others are tight on the other side the heavy shock load of starting will be borne by only some of the belts thus weakening or breaking the load carrying cords Ruptured Cover A 2 Belts rubbing against the metal guard or other obstruction will be evidenced by cut or worn fabric on the back or upper edge of the V belt Often just replacing missing bolts in guard brackets will remedy this situation x S d gt e hice Rcg bach M SR L 1 Gw Carte en Mm Seet m kel e m MEN ROR E sl Fabric Worn on Backside VISIT OUR WEB SITE AT WWW CLARKTR COM FOR MORE INFORMATION CALL CLARK TRAN
29. ed tie band see illustration These belts will ride slightly higher in the sheave grooves to provide clearance between the band and the sheave flange Because of this sheave grooves should not be worn or dished out more than 1 64 Also because they are banded together alignment of the sheaves is somewhat more critical Belts riding slightly higher in the sheave grooves The chart on the next page will be helpful in selecting the best Carlisle belt for an application 25 VISIT OUR WEB SITE AT WWW CLARKTR COM FOR MORE INFORMATION CALL CLARK TRANSMISSION 973 227 4422 CIUT V Belt Selection Guide Maximum Generic Belt Type Normal Belt Speed Carlisle Brand Cross Sections HP Range FT Min Super Blue Classical Multiple 1 500 6500 Ribbon A D Super Classical Multiple 1 500 3 D Gold Ribbon Classical Cogged 1 500 Cog Belt Multiple AX BX CX DX Super Narrow Multiple 1 1000 Power Wedge 3V SV 8V Power Wedge Narrow Cogged 1 600 Cog Belt Multiple 3VX 5 Super Classical Banded 1 500 Vee Band RB RC RD Gold Ribbon Classical Cogged Banded 1 500 Cog Band Premium HP RBX RCX RDX Wedge Band Narrow Banded 1 1000 6500 R3V R5V R8V Double Double V Belts 1 200 6500 Angle AA BB CC DD Variable Speed Variable Speed 21 6500 Cog Belt 1228V 6136V Vee Rib V Ribbed 500 6000 J L M Thoro Twist Link Segmented 1 300 9000 3LTwist BTwist CT
30. ended for that service Contact Carlisle or your Carlisle distributor for assistance or specific recommendations VISIT OUR WEB SITE AT WWW CLARKTR COM FOR MORE INFORMATION CALL CLARK TRANSMISSION 973 227 4422 V Belt Construction Wrapped Belt Raw Edge Cog Belt Before we talk about Avoiding Problems and Solving Problems let s take a brief look at how V belts are constructed There are basically two types of construction One has a fabric cover surrounding it the other usually rated higher in horsepower is made in a raw edge cogged construction Wrapped Belt 1 Cover Woven cotton fabric impregnated with neoprene 2 Tension Section Synthetic rubber specially compounded to stretch as belt bends around sheaves 3 Cords High strength synthetic fiber cords carry the horsepower load and minimize stretching 4 Compression Section Synthetic rubber compounded to support cords evenly and compress while bending around sheaves Raw Edge Cog Belt 1 Tension Section Specially woven stress relieved fabric stretches up to 17696 more than ordinary bias cut fabric Cords Synthetic Hi Modulus cords form the strength member to carry high loads with minimum stretching Compression Section Exclusive Stiflex rubber compounds and precision molded cogs increase flexibility while supporting cords evenly Raw Edge Sidewalls Provide uniform anti slip surface greater flexibility
31. ive belt tension to prevent slippage This condition may require re design either using more belts increasing the center distance or using a backside idler with longer belts This is again a matter for plant engineering 5 Backside idlers can create their own problems because they cause V belts to bend opposite to the way they were designed Care must be taken to see that a backside idler is large enough in diameter to reduce harmful stresses which often cause cracks on the underside of the belt Table A under 2 3 also shows these minimum recommended diameters Full technical information regarding proper V belt design can be found in the Carlisle Engineering Guide for Industrial V Belt Drives available from your Carlisle distributor 35 VISIT OUR WEB SITE AT WWW CLARKTR COM FOR MORE INFORMATION CALL CLARK TRANSMISSION 973 227 4422 CARLISLE INSTALLATION AND TAKE UP DATA TABLE 3 POWER WEDGE SUPER POWER WEDGE V BELTS CENTER DISTANCE ALLOWANCE FOR INSTALLATION AND TAKE UP INCHES For Take Up Standard For Installation Subtract Add Length Designation 3V 5V 8VX eu Banded Banded Banded Sections 1 2 1 0 250 thru 475 a 500 thru 710 1 0 2 1 750 thru 1060 1 0 2 1 1 5 1 0 2 1 1 5 3 4 1120 thru 1250 3 4 1320 thru 1700 1800 thru 2000 2120 thru 2360 2500 thru 2650 2800 thru 3000 3150 thru 3550 3750 4000 thru 5000 TABLE 4 CLASSICAL V BELTS CENTER DISTANCE ALLOWANCE FOR IN
32. n sheaves for use with narrow V Belts Standardized QD bushings V Ribbed Sheaves J For use with V ribbed belts Precision form cut grooves for smooth running Classical QD Sheaves AQ BQ CQ DQ High Quality heavy duty sheaves for classical A B C D V Belts Durapower Sheaves Bushed Type 3L 4L 4L 5L No Cast iron for all types of light duty and applications using 3L 4L 5L A and B V Belts Bushing interchanges with similar competitive types Durapower Sheaves Fixed Bore Type 3L 4L 4L 5L Cast iron bore and keywayed to fit popular shaft sizes For light duty Durapower Sheaves Adjustable Diameter 3L 4L 4L 5L Rugged cast iron two piece threaded assembly allows adjustment of pitch diameter Combination grooves for use with 3L 4L 5L A and B section V Belts RPP PANTHER 8M 14M The ultimate choice in high torque synchronous belt drives RPP PANTHER Sprockets Specially designed to handle the high torque transmitted by PANTHER belt drives RPP PLUS 5M 8M 14M 20M Up to 50 more power capacity than conventional high torque drives Dual RPP D8M D14M Dual sided synchronous belt with deep tooth parabolic profile teeth allowing synchronous transmission via both the external and internal pulleys in a multi pulley drive RPP Sprockets 5M 8M 14M 20M Precision companion to RPP and RPP PLUS belts on high torque synchronous drives Synchro Cog Timing Belt XL L H XH XXH For synchro
33. nization of driven speed to driver speed Synchro Cog Dual Timing Belt DXL DL DH Provides maintenance free synchronization from both sides of the belt on positive drive applications e Excellent performance on serpentine type drives we E c Synchro Cog Timing Pulleys XL L H XH XXH For perfect mating with timing belts on synchronous drives pri SMISSION 973 227 4422 ucts Inc X at Y e LI Power Transm CANADA 13 797 2358 4 Ipnfo ecarlslebelte com www Garlielebeltecom 102163 Rev 2007 Carlisle Power Transmission Products Inc
34. or your drive from Table 1 Tighten the belt until the line has moved to the designated slot In this picture the line is in Slot 3 Step 4 Place the Start Slot over the line Step 6 Scribe a line at the spring end of the Tension Finder Use this line as a reference point in case the spring slips off the belt Step 8 Remove the Tension Finder from the belt tighten mounting bolts and replace belt guards You re ready to start the drive Table 1 Recommended Tensioning Slots Slot No Belt Lines New Belt Used Belt AP BP CP DP RBP RCP RDP B C AX BX CX DX RBX RCX RDX 9V 8V R3V RSV Ra OVX 8VX R5VX 18118 5 SPBX SPCX 9965190720906 oto 3 OVA Oe Dr D I FOR MORE INFORMATION CALL CLARK TRANSMISSION 973 227 4422 Tensioning Carlisle V Belt Tension Tool cont The recommended slot no s in Table 1 will provide an adequate level of belt tension on average drives If more tension is required go to a higher slot no For less tension go to a lower slot no Note Slots 4 and 5 on the Tension Finder are provided for drives where the values in Table 1 do not provide adequate tension Please consult Carlisle Application Engineering before tensioning a drive to these slots ANWarning Remove The Tension Finder from the belt before starting the drive Special Instructions For Cog Belts If the spring clip won t sit securely on the flat area between cog
35. r Blue Ribbon V Belt in banded design Eliminates belt whip and turnover on conventional drives Gold Ribbon Cog Belt AX BX CX DX The Energy Saver More efficient than ordinary belts The finest classical V belt available Gold Ribbon Cog Band RBX RCX RDX A unique combination of our energy saving Cog Belt and the banded concept Double Angle Belt AA BB CC Designed for use on serpentine type drive applications e mmm PS DN ee ET Vee Ribbed Belt J L M 4 1 Increased HP in 2 3 the space d 11x required for normal belts d mme Durapower Light duty V Belt 3L 4L 5L Carlisle wrapped belt technology makes Durapower a real heavyweight in the light duty v belt arena Durapower ll Raw Edge PEI EEE ESSE EE EE Lye FHP Light Duty V Belt Longer belt life and improved performance SE cee SEEDS EEE ie Xtra Duty 38 48 58 iig Wi The XDV belt is designed for tough belt drives if typical of snowblowers lawn mowers garden tractors 4 tillers etc Cover fabric design is geared to optimize GNE declutching capability for smooth and reliable transfer of power available in chekE mate construction VISIT OUR WEB SITE AT WWW CLARKTR COM FOR MORE INFORMATION CALL CLARK TRANSMISSION 973 227 4422 Table of Contents STITGT This CARLISLE V BELT D
36. s take the following steps to scribe the line on the belt j i iN Place the spring in a cog Put a dot at the Start Slot Scribe a line through the dot groove Be careful not to catch the The line should extend pen in the slot you may pull across the width of the the tip out of the pen Tension Finder Then go back to step 4 on page 37 Spring Loaded Tensiometer for V Belts Uses a tensioning method based on the fact that the force required to deflect a given span length by a given amount is related to the tension in the belt HERE L3 Procedure for using the Carlisle V Belt Tensiometer nine 1 Measure the span length of the drive See Fig 1 Set the large ring at 1 64 for each inch of belt span For example set the large ring 1 4 for a span length of 167 at 1 2 for a span length of 32 at 1 for a span length of 64 etc 2 Set the small O ring at zero and press down the Carlisle pm Tensiometer at the center of the belt span See Fig 2 RING X PLACE THIS END a On a Single belt drive depress the Tensiometer until the Fig 1 large ring is even with the bottom of a straight edge placed on the outside rims of the two sheaves SPAN LENGTH Ls b On a multiple belt drive depress the Tensiometer until the S large 0 ring is even with the top of the next belt Measure each belt in the drive and take the aver
37. sing raw edge cogged V belts which have a higher horsepower rating When these are used drives should be identified to assure that future replacements are made with this type of belt 2 Drive overbelting while usually resulting in longer V belt life can be just as serious as underbelting The symptoms most commonly found are overheated bearings and bent shafts When too many belts are on the drive the total tension can be excessive when table values are used On the other hand when too few belts are on the drive tension values from these tables may be inadequate 6 Belt Vibration is a not so common problem resulting from tension harmonics Since induced vibration can be caused by several factors this should be referred to plant engineering 33 VISIT OUR WEB SITE AT WWW CLARKTR COM FOR MORE INFORMATION CALL CLARK TRANSMISSION 973 227 4422 A 3 When sheaves are too small for the belt cross section the belt flexes beyond its normal limits This is usually evidenced by cracks on the under side of the belt Table A indicates the minimum recommended sheave diameter for flexing each belt cross section In most cases use of a raw edge cogged belt will improve service life greatly due to its greater flexibility Table A Minimum Recommended Sheave and Idler Diameters V Belt Minimum P D Minimum O D Cross Section Sheave or Inside Idler Flat Backside Idler C CP 19 9 91 5 OD lt
38. sle Certified Drive Specialist assure you of using the correct V belt This service may be obtained by contacting your Carlisle Authorized Stocking Distributor He maintains a full and convenient inventory of replacement belts and sheaves and stands ready to assist you in selecting the proper size and type for each application Carlisle s Industrial Power Transmission catalog lists all types and sizes of stock industrial belts and sheaves However the following suggestions will cover the most serious selection problems DO match the correct belt cross section to the sheave groove A A B B etc DON T use section belts in 5V grooves or vice versa Check the sheave number stamped on the rim if in doubt DON T replace or heavy duty V belts with 4L or 5L light duty FHP V belts FHP belts are built for Fractional Horsepower applications and usually run singly Most multiple drives require heavy duty belts DO use V belts marked Oil and Heat Resistant where oil or heat is present The Carlisle Gold Ribbon Cog Belt and Power Wedge Cog Belt offer maximum heat and oil resistance see key numbers 442 and 43 DO insist on a belt labeled Static dissipating on drives operating in hazardous atmospheres DO use banded V belts where vibration or shock loads can cause belts to turn over or jump out of the sheave grooves DO use matched sets from the same manufacturer see
39. sults in three loops two coilings result in five loops etc AA and BB are known as double angle or hexagonal V belts d OW zk ON OD GO IN 01 O1 OW The pegs should be crescent shaped in cross section to avoid compression set dents in the belts from sharp corners and the pegs should be sufficiently large in cross section to avoid compression setting into sharp bends resulting from the weight of the hanging belts It is recognized that belts are sometimes coiled in smaller loops for packaging for shipment than indicated in the above table but such packaging should not be for prolonged storage 29 VISIT OUR WEB SITE AT WWW CLARKTR COM FOR MORE INFORMATION CALL CLARK TRANSMISSION 973 227 4422 A CARLISLE 2 Excessive heat Standard construction V belts such as Carlisle s Super Blue Ribbon are compounded for moderate resistance and should give adequate service under normal conditions Belt temperature not ambient or surrounding air temperature is the deter mining factor when heat is a suspected cause of short belt life Tests have shown that the service life of a V belt is cut in half for every 18 raise in belt temperature Troubleshooting Belt Temperature A good general rule for checking belt temperature without sophisticated instruments is to stop the drive lock it out and touch the belt with your hand If you can grasp if firmly for at least 5 seconds the belt temperature is
40. utor which can be used to check grooves accurately for wear A flashlight held behind the tem plate when placed in the groove will help you to observe the amount of wear Dishing should not exceed 1 32 for individual V belts or 1 64 for banded V belts A shiny groove bottom is a sign that the belt or sheave or both are badly worn and the belt is bottoming in the groove Worn sheaves or shiny sheave groove bottoms will show up first on the smaller sheave The cost of replacing a worn sheave will be more than recovered in longer V belt life reduced maintenance and downtime Za a A a ro er i SSR EN oo EE Worn Sidewalls Cut Tie Band Proper Position of Belt in Bottoming and Dishing of Sheave Belt in Sheave VISIT OUR WEB SITE AT WWW CLARKTR COM FOR MORE INFORMATION CALL CLARK TRANSMISSION 973 227 4422 A 5 Sheaves mounted too far from the bearing cause excessive over hung load on the bearing and overheating This can also cause shafting to whip bend or break Sheaves should be mounted as close as possible to the bearing If this affects alignment severely it may be necessary to re locate the equipment to stay within alignment limits of 1 16 per 12 of shaft center to center distance A 6 Bearing condition and normal wear may well be the cause of overheat ing rather than belt tension They should be inspected for proper lubrication and wear according to the specific
41. wist 1000 min Durapower Light Duty 6500 2L h K 51 Durapower FHP Light Duty 6500 2L 3L AL 5L Premium FHP Light Duty 6500 38X 48X 58X Notes 1 Normally limited by sheave materials 2 Expect little or no life loss due to heat 26 VISIT OUR WEB SITE AT WWW CLARKTR COM FOR MORE INFORMATION CALL CLARK TRANSMISSION 973 227 4422 Troubleshooting Selection Problems Int Normal Temp Range Oil Heat Static Fe Resistance Dissipating General Application Min Max Good General Purpose Heavy Duty Industrial Drives Good General Purpose Heavy Duty Industrial Drives Excellent Longer Life High Efficiency Small Diameters Very High Performance Compact Good Industrial Drives Long C D Excellent High Performance Compact Industrial Drives Short C D Reduces Belt Whip Turnover on Pulsating Surge Loads Reduces Belt Whip Turnover 35 130 Very Good on Pulsating Surge Loads Special Order serpentine Drives 99 130 Excellent v Wide Range Variable sheaves 130 Very Small Diameters High Speed Good Ratios Compact 35 130 Excellent Emergency Replacement Fixed Center Distance 35 130 Excellent Longer Life High Efficiency Reduces Belt Whip Turnover on Pulsating Surge Loads Fair Light Duty Drives Using a Single Belt 39 120 Fair v Light Duty Drives Using a Single Belt Longer Life on FHP Drives Clutching Lawn Garden Drives F available in chekZYmate construction 27 VISI
42. without a careful and thorough inspection of the sheaves involved Particular attention should be given to these conditions a Worn Groove Sidewalls b Shiny Sheave Groove Bottom Wobbling Sheaves d Damaged Sheaves Worn Groove Sidewalls Wobbling Sheaves d Damaged Sheaves Align Sheaves Preliminary A 3 A 5 Alignment should be given preliminary consideration at this time Check to make sure that a The shaft of the DriveR and the DriveN sheaves are parallel horizontally and vertically b The DriveR and DriveN sheaves are in a straight line c Both sheaves are properly mounted and as near to the bearings as practical VISIT OUR WEB SITE AT WWW CLARKTR COM FOR MORE INFORMATION CALL CLARK TRANSMISSION 973 227 4422 Preventive Maintenance CARLISLE and Installation of V Belt Drives Select Replacement Belts A 1 A 2 A 3 A 4 After you have made any necessary corrections in your V belt drive ele ments the next step is the selection of the right replacement belts In replacing sets of V belts here are some Very Important Reminders e NEVER MIX NEW AND USED BELTS ON A DRIVE NEVER MIX BELTS FROM MORE THAN ONE MANUFACTURER ALWAYS REPLACE WITH THE RIGHT OF V BELT ALWAYS OBSERVE V BELT MATCHING LIMITS Installing New Belts A 1 Place the new belts on the sheaves and be sure that the slack of each belt is on the same side You can do this by pressing the belts with your
Download Pdf Manuals
Related Search
Related Contents
USER MANUAL 【SX1000】高性能SWR・パワー計 Contents - McMaster University CUE 5.0 Reference Manual - Rev1.0 Sony ICF-2001 user manual ハイブリッド加湿器 NEST-331 - ピーエスグループ/ピーエス株式会社 Pantalla LED de 23" Full HD SuperClear® con IPS Copyright © All rights reserved.
Failed to retrieve file