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1. TIRE SAFETY INFORMATION

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1. Locate the GVWR Gross Vehicle Weight Rating of the trailer on your trailers VIN Certification label Subtract the empty weight of your trailer from the GVWR stated on the VIN label That weight is the maximum available cargo capacity of the trailer and may not be safely exceeded on 1 2 STEPS FOR DETERMINING CORRECT LOAD LIMIT TOW VEHICLE 1 Locate the statement The combined weight of occupants and cargo should never exceed XXX lbs on your vehicle s placard Determine the combined weight of the driver and passengers who will be riding in your vehicle Subtract the combined weight of the driver and passengers from XXX kilograms or XXX pounds The resulting figure equals the available amount of cargo and luggage capacity For example if the XXX amount equals 1400 Ibs and there will be five 150 lb passengers in your vehicle the amount of available cargo and luggage capacity is 650 lbs 1400 750 5 x 150 650 Ibs 5 Determine the combined weight of luggage and cargo being loaded on the vehicle That weight may not safely exceed the available cargo and luggage capacity calculated in Step 4 6 If your vehicle will be towing a trailer load from your trailer will be transferred to your vehicle Consult the tow vehicle s manual to determine how this weight transfer reduces the available cargo and luggage capacity of your vehicle Pon 1 3 GLOSSARY OF TIRE TERMINOLOGY Accessory weight The combine
2. can generate an excessive amount of heat within the tire Excessive heat may lead to tire failure It is the air pressure that enables a tire to support the load so proper inflation is critical The proper air pressure may be found on the certification VIN label and or on the Tire Placard This value should never exceed the maximum cold inflation pressure stamped on the tire 1 1 1 TRAILERS 10 000 PounDs GVWR or LESS P The weight of cargo should never exceed XXX kg or XXX Ibs TIRE SIZE COLD TIRE PRESSURE NT 20 5x8 0 10 E 621KPA 90PSI some 10 Tire and Loading Information Placard Figure 1 1 1 Locate the statement The weight of cargo should never exceed XXX kg or XXX lbs on your vehicle s placard See figure 1 1 2 This figure equals the available amount of cargo and luggage load capacity 3 Determine the combined weight of luggage and cargo being loaded on the vehicle That weight may not safely exceed the available cargo and luggage load capacity The trailers placard refers to the Tire Information Placard attached adjacent to or near the trailer s VIN Certification label at the left front of the trailer 1 1 2 TRAILERS OVER 10 000 Pounps GVWR NOTE THESE TRAILERS ARE NOT REQUIRED TO HAVE A TIRE INFORMATION PLACARD ON THE VEHICLE 1 Determine the empty weight of your trailer by weighing the trailer using a public scale or other means This step does not have to be repeated
3. pressure except in cases in which the front and rear tires are supposed to have different amounts of pressure If you have been driving your vehicle and think that a tire is underinflated fill it to the recommended cold inflation pressure indicated on your vehicle s tire information placard or certification label While your tire may still be slightly underinflated due to the extra pounds of pressure in the warm tire it is safer to drive with air pressure that is slightly lower than the vehicle manufacturer s recommended cold inflation pressure than to drive with a significantly underinflated tire Since this is a temporary fix don t forget to recheck and adjust the tire s pressure when you can obtain a cold reading 1 5 5 TIRE SIZE To maintain tire safety purchase new tires that are the same size as the vehicle s original tires or another size recommended by the manufacturer Look at the tire information placard the owner s manual or the sidewall of the tire you are replacing to find this information If you have any doubt about the correct size to choose consult with the tire dealer 1 5 6 TIRE TREAD The tire tread provides the gripping action and traction that prevent your vehicle from slipping or sliding especially when the road is wet or icy In general tires are not safe and should be replaced when the tread is worn down to 1 16 of an inch Tires have built in treadwear indicators that let you know when it is time to replace your
4. the maximum capacity of fuel oil and coolant and if so equipped air conditioning and additional weight optional engine Extra load tire A tire designed to operate at higher loads and at higher inflation pressures than the corresponding standard tire Groove The space between two adjacent tread ribs Gross Axle Weight Rating The maximum weight that any axle can support as published on the Certification VIN label on the front left side of the trailer Actual weight determined by weighing each axle on a public scale with the trailer attached to the towing vehicle Gross Vehicle Weight Rating The maximum weight of the fully loaded trailer as published on the Certification VIN label Actual weight determined by weighing trailer on a public scale without being attached to the towing vehicle Hitch Weight The downward force exerted on the hitch ball by the trailer coupler Innerliner The layer s forming the inside surface of a tubeless tire that contains the inflating medium within the tire Innerliner separation The parting of the innerliner from cord material in the carcass Intended outboard sidewall The sidewall that contains a white wall bears white lettering or bears manufacturer brand and or model name molding that is higher or deeper than the same molding on the other sidewall of the tire or the outward facing sidewall of an asymmetrical tire that has a particular side that must always face outward when mounted on a veh
5. tires These indicators are raised sections spaced intermittently in the bottom of the tread grooves When they appear even with the outside of the tread it is time to replace your tires Another method for checking tread depth is to place a penny in the tread with Lincoln s head upside down and facing you If you can see the top of Lincoln s head you are ready for new tires 1 5 7 TIRE BALANCE AND WHEEL ALIGNMENT To avoid vibration or shaking of the vehicle when a tire rotates the tire must be properly balanced This balance is achieved by positioning weights on the wheel to counterbalance heavy spots on the wheel and tire assembly A wheel alignment adjusts the angles of the wheels so that they are positioned correctly relative to the vehicle s frame This adjustment maximizes the life of your tires These adjustments require special equipment and should be performed by a qualified technician 1 5 8 TIRE REPAIR The proper repair of a punctured tire requires a plug for the hole and a patch for the area inside the tire that surrounds the puncture hole Punctures through the tread can be repaired if they are not too large but punctures to the sidewall should not be repaired Tires must be removed from the rim to be properly inspected before being plugged and patched 1 5 9 TIRE FUNDAMENTALS Federal law requires tire manufacturers to place standardized information on the sidewall of all tires This information identifies and describ
6. 1 TIRE SAFETY INFORMATION This portion of the User s Manual contains tire safety information as required by 49 CFR 575 6 Section 2 1 contains Steps for Determining Correct Load Limit Trailer Section 2 2 contains Steps for Determining Correct Load Limit Tow Vehicle nt Section 2 3 contains a Glossary of Tire Terminology including cold inflation pressure maximum inflation pressure recommended inflation pressure and other non technical terms Section 2 4 contains information from the NHTSA brochure entitled Tire Safety Everything Rides On It This brochure This brochure as well as the preceding subsections describes the following items e Tire labeling including a description and explanation of each marking on the tires and information about the DOT Tire Identification Number TIN e Recommended tire inflation pressure including a description and explanation of A Cold inflation pressure B Vehicle Placard and location on the vehicle C Adverse safety consequences of under inflation including tire failure D Measuring and adjusting air pressure for proper inflation e Tire Care including maintenance and safety practices e Vehicle load limits including a description and explanation of the following items A Locating and understanding the load limit information total load capacity and cargo capacity B Calculating total and cargo capacities with varying seating conf
7. For convenience purchase a tire pressure gauge to keep in your vehicle Gauges can be purchased at tire dealerships auto supply stores and other retail outlets The recommended tire inflation pressure that vehicle manufacturers provide reflects the proper psi when a tire is cold The term cold does not relate to the outside temperature Rather a cold tire is one that has not been driven on for at least three hours When you drive your tires get warmer causing the air pressure within them to increase Therefore to get an accurate tire pressure reading you must measure tire pressure when the tires are cold or compensate for the extra pressure in warm tires 1 5 4 STEPS FOR MAINTAINING PROPER TIRE PRESSURE e Step 1 Locate the recommended tire pressure on the vehicle s tire information placard certification label or in the owner s manual e Step 2 Record the tire pressure of all tires e Step 3 If the tire pressure is too high in any of the tires slowly release air by gently pressing on the tire valve stem with the edge of your tire gauge until you get to the correct pressure e Step 4 If the tire pressure is too low note the difference between the measured tire pressure and the correct tire pressure These missing pounds of pressure are what you will need to add e Step 5 At a service station add the missing pounds of air pressure to each tire that is underinflated e Step 6 Check all the tires to make sure they have the same air
8. a fully loaded trailer can not exceed the stated GVWR For trailers with living quarters installed the weight of water and propane also need to be considered The weight of fully filled propane containers is considered part of the weight of the trailer before it is loaded with cargo and is not considered part of the disposable cargo load Water however is a disposable cargo weight and is treated as such If there is a fresh water storage tank of 100 gallons this tank when filled would weigh about 800 pounds If more cargo is being transported water can be off loaded to keep the total amount of cargo added to the vehicle within the limits of the GVWR so as not to overload the vehicle Understanding this flexibility will allow you the owner to make choices that fit your travel needs When loading your cargo be sure it is distributed evenly to prevent overloading front to back and side to side Heavy items should be placed low and as close to the axle positions as reasonable Too many items on one side may overload a tire The best way to know the actual weight of the vehicle is to weigh it at a public scale Talk to your dealer to discuss the weighing methods needed to capture the various weights related to the trailer This would include the weight empty or unloaded weights per axle wheel hitch or king pin and total weight Excessive loads and or underinflation cause tire overloading and as a result abnormal tire flexing occurs This situation
9. ams and pounds that can be carried by the tire Maximum Permissible Inflation Pressure This number is the greatest amount of air pressure that should ever be put in the tire under normal driving conditions 1 5 9 2 UTQGS Information Treadwear Number This number indicates the tire s wear rate The higher the treadwear number is the longer it should take for the tread to wear down For example a tire graded 400 should last twice as long as a tire graded 200 Traction Letter This letter indicates a tire s ability to stop on wet pavement A higher graded tire should allow you to stop your car on wet roads in a shorter distance than a tire with a lower grade Traction is graded from highest to lowest as AA A B and C Temperature Letter This letter indicates a tire s resistance to heat The temperature grade is for a tire that is inflated properly and not overloaded Excessive speed underinflation or excessive loading either separately or in combination can cause heat build up and possible tire failure From highest to lowest a tire s resistance to heat is graded as A B or C 1 5 9 3 Additional Information on Light Truck Tires Tires for light trucks have other markings besides those found on the sidewalls of passenger tires LT The LT indicates the tire is for light trucks or trailers ST An ST is an indication the tire is for trailer use only Max Load Dual kg Ibs at kPa psi Cold This information indic
10. ates the maximum load and tire pressure when the tire is used as a dual that is when four tires are put on each rear axle a total of six or more tires on the vehicle Max Load Single kg Ibs at kPa psi Cold This information indicates the maximum load and tire pressure when the tire is used as a single Load Range This information identifies the tire s load carrying capabilities and its inflation limits 1 6 TIRE SAFETY TIPS Preventing Tire Damage Slow down if you have to go over a pothole or other object in the road e Donotrun over curbs or other foreign objects in the roadway and try not to strike the curb when parking Tire Safety Checklist Check tire pressure regularly at least once a month including the spare Inspect tires for uneven wear patterns on the tread cracks foreign objects or other signs of wear or trauma Remove bits of glass and foreign objects wedged in the tread Make sure your tire valves have valve caps Check tire pressure before going on a long trip Do not overload your vehicle Check the Tire Information and Loading Placard or User s Manual for the maximum recommended load for the vehicle TRITON TRAILERS LLG 262 670 6514 WWW TRITONTRAILERS COM tritontraitilers com
11. d weight in excess of those standard items which may be replaced of automatic transmission power steering power brakes power windows power seats radio and heater to the extent that these items are available as factory installed equipment whether installed or not Bead The part of the tire that is made of steel wires wrapped or reinforced by ply cords and that is shaped to fit the rim Bead separation This is the breakdown of the bond between components in the bead Bias ply tire A pneumatic tire in which the ply cords that extend to the beads are laid at alternate angles substantially less than 90 degrees to the centerline of the tread Carcass The tire structure except tread and sidewall rubber which when inflated bears the load Chunking The breaking away of pieces of the tread or sidewall Cold inflation pressure The pressure in the tire before you drive Cord The strands forming the plies in the tire Cord separation The parting of cords from adjacent rubber compounds Cracking Any parting within the tread sidewall or inner liner of the tire extending to cord material CT A pneumatic tire with an inverted flange tire and rim system in which the rim is designed with rim flanges pointed radially inward and the tire is designed to fit on the underside of the rim in a manner that encloses the rim flanges inside the air cavity of the tire Curb weight The weight of a motor vehicle with standard equipment including
12. es the fundamental characteristics of the tire and also provides a tire identification number for safety standard certification and in case of a recall 1 5 9 1 Information on Passenger Vehicle Tires Please refer to the diagram below The P indicates the tire is for passenger vehicles Next number This three digit number gives the width in millimeters of the tire from sidewall edge to sidewall edge In general the larger the number the wider the tire Next number This two digit number known as the aspect ratio gives the tire s ratio of height to width Numbers of 70 or lower indicate a short sidewall for improved steering response and better overall handling on dry pavement The R stands for radial Radial ply construction of tires has been the industry standard for the past 20 years Next number This two digit number is the wheel or rim diameter in inches If you change your wheel size you will have to purchase new tires to match the new wheel diameter Next number This two or three digit number is the tire s load index It is a measurement of how much weight each tire can support You may find this information in your owner s manual If not contact a local tire dealer Note You may not find this information on all tires because it is not required by law M S The M S or M S indicates that the tire has some mud and snow capability Most radial tires have these markings hence they have some mud and snow capabilit
13. his information to make tire safety a regular part of your vehicle maintenance routine Recognize that the time you spend is minimal compared with the inconvenience and safety consequences of a flat tire or other tire failure 1 5 SAFETY FIRST BASIC TIRE MAINTENANCE Properly maintained tires improve the steering stopping traction and load carrying capability of your vehicle Underinflated tires and overloaded vehicles are a major cause of tire failure Therefore as mentioned above to avoid flat tires and other types of tire failure you should maintain proper tire pressure observe tire and vehicle load limits avoid road hazards and regularly inspect your tires 1 5 1 FINDING YOUR VEHICLE S RECOMMENDED TIRE PRESSURE AND LOAD LIMITS Tire information placards and vehicle certification labels contain information on tires and load limits These labels indicate the vehicle manufacturer s information including e Recommended tire size e Recommended tire inflation pressure e Vehicle capacity weight VCW the maximum occupant and cargo weight a vehicle is designed to carry e Front and rear gross axle weight ratings GAWR the maximum weight the axle systems are designed to carry Both placards and certification labels are permanently attached to the trailer near the left front 1 5 2 UNDERSTANDING TIRE PRESSURE AND LOAD LIMITS Tire inflation pressure is the level of air in the tire that provides it with load carrying capacity a
14. icle Light truck LT tire A tire designated by its manufacturer as primarily intended for use on lightweight trucks or multipurpose passenger vehicles Load rating The maximum load that a tire is rated to carry for a given inflation pressure Maximum load rating The load rating for a tire at the maximum permissible inflation pressure for that tire Maximum permissible inflation pressure The maximum cold inflation pressure to which a tire may be inflated Maximum loaded vehicle weight The sum of curb weight accessory weight vehicle capacity weight and production options weight Measuring rim The rim on which a tire is fitted for physical dimension requirements Pin Weight The downward force applied to the 5 wheel or gooseneck ball by the trailer kingpin or gooseneck coupler Non pneumatic rim A mechanical device which when a non pneumatic tire assembly incorporates a wheel supports the tire and attaches either integrally or separably to the wheel center member and upon which the tire is attached Non pneumatic spare tire assembly A non pneumatic tire assembly intended for temporary use in place of one of the pneumatic tires and rims that are fitted toa passenger car in compliance with the requirements of this standard Non pneumatic tire A mechanical device which transmits either directly or through a wheel or wheel center member the vertical load and tractive forces from the roadway to the vehicle generates the tract
15. igurations including quantitative examples showing illustrating how the vehicles cargo and luggage capacity decreases as combined number and size of occupants increases This item is also discussed in Section 3 C Determining compatibility of tire and vehicle load capabilities D Adverse safety consequences of overloading on handling and stopping on tires 1 1 STEPS FOR DETERMINING CORRECT LOAD LIMIT TRAILER Determining the load limits of a trailer includes more than understanding the load limits of the tires alone On all trailers there is a Federal certification VIN label that is located on the forward half of the left road side of the unit This certification VIN label will indicate the trailer s Gross Vehicle Weight Rating GVWR This is the most weight the fully loaded trailer can weigh It will also provide the Gross Axle Weight Rating GAWR This is the most a particular axle can weigh If there are multiple axles the GAWR of each axle will be provided If your trailer has a GVWR of 10 000 pounds or less there is a vehicle placard located in the same location as the certification label described above This placard provides tire and loading information In addition this placard will show a statement regarding maximum cargo capacity Cargo can be added to the trailer up to the maximum weight specified on the placard The combined weight of the cargo is provided as a single number In any case remember the total weight of
16. ive forces that provide the directional control of the vehicle and does not rely on the containment of any gas or fluid for providing those functions Non pneumatic tire assembly A non pneumatic tire alone or in combination with a wheel or wheel center member which can be mounted on a vehicle Normal occupant weight This means 68 kilograms 150 Ibs times the number of occupants specified in the second column of Table of 49 CFR 571 110 Occupant distribution The distribution of occupants in a vehicle as specified in the third column of Table of 49 CFR 571 110 Open splice Any parting at any junction of tread sidewall or innerliner that extends to cord material Outer diameter The overall diameter of an inflated new tire Overall width The linear distance between the exteriors of the sidewalls of an inflated tire including elevations due to labeling decorations or protective bands or ribs Ply A layer of rubber coated parallel cords Ply separation A parting of rubber compound between adjacent plies Pneumatic tire A mechanical device made of rubber chemicals fabric and steel or other materials that wnen mounted on an automotive wheel provides the traction and contains the gas or fluid that sustains the load Production options weight The combined weight of those installed regular production options weighing over 2 3 kilograms 5 lbs in excess of those standard items which they replace not previously considered i
17. n curb weight or accessory weight including heavy duty brakes ride levelers roof rack heavy duty battery and special trim Radial ply tire A pneumatic tire in which the ply cords that extend to the beads are laid at substantially 90 degrees to the centerline of the tread Recommended inflation pressure This is the inflation pressure provided by the vehicle manufacturer on the Tire Information label and on the Certification VIN tag Reinforced tire A tire designed to operate at higher loads and at higher inflation pressures than the corresponding standard tire Rim A metal support for a tire or a tire and tube assembly upon which the tire beads are seated Rim diameter This means the nominal diameter of the bead seat Rim size designation This means the rim diameter and width Rim type designation This means the industry of manufacturer s designation for a rim by style or code Rim width This means the nominal distance between rim flanges Section width The linear distance between the exteriors of the sidewalls of an inflated tire excluding elevations due to labeling decoration or protective bands Sidewall That portion of a tire between the tread and bead Sidewall separation The parting of the rubber compound from the cord material in the sidewall Special Trailer ST tire The ST is an indication the tire is for trailer use only Test rim The rim on which a tire is fitted for testing and may be any rim lis
18. nd affects the overall performance of the vehicle The tire inflation pressure is a number that indicates the amount of air pressure measured in pounds per square inch psi a tire requires to be properly inflated You will also find this number on the vehicle information placard expressed in kilopascals kpa which is the metric measure used internationally Manufacturers of passenger vehicles and light trucks determine this number based on the vehicle s design load limit that is the greatest amount of weight a vehicle can safely carry and the vehicle s tire size The proper tire pressure for your vehicle is referred to as the recommended cold inflation pressure As you will read below it is difficult to obtain the recommended tire pressure if your tires are not cold Because tires are designed to be used on more than one type of vehicle tire manufacturers list the maximum permissible inflation pressure on the tire sidewall This number is the greatest amount of air pressure that should ever be put in the tire under normal driving conditions 1 5 3 CHECKING TIRE PRESSURE It is important to check your vehicle s tire pressure at least once a month for the following reasons e Most tires may naturally lose air over time e Tires can lose air suddenly if you drive over a pothole or other object or if you strike the curb when parking e With radial tires it is usually not possible to determine underinflation by visual inspection
19. neumatic tire and provides the connection between tire and the vehicle Wheel holding fixture The fixture used to hold the wheel and tire assembly securely during testing 1 4 TIRE SAFETY EVERYTHING RIDES ON IT The National Traffic Safety Administration NHTSA has published a brochure DOT HS 809 361 that discusses all aspects of Tire Safety as required by CFR 575 6 This brochure is reproduced in part below It can be obtained and downloaded from NHTSA free of charge from the following web site http www nhtsa dot gov cars rules TireSafety ridesonit tires index html Studies of tire safety show that maintaining proper tire pressure observing tire and vehicle load limits not carrying more weight in your vehicle than your tires or vehicle can safely handle avoiding road hazards and inspecting tires for cuts slashes and other irregularities are the most important things you can do to avoid tire failure such as tread separation or blowout and flat tires These actions along with other care and maintenance activities can also e Improve vehicle handling e Help protect you and others from avoidable breakdowns and accidents e Improve fuel economy e Increase the life of your tires This booklet presents a comprehensive overview of tire safety including information on the following topics e Basic tire maintenance e Uniform Tire Quality Grading System e Fundamental characteristics of tires e Tire safety tips Use t
20. ted as appropriate for use with that tire Tread That portion of a tire that comes into contact with the road Tread rib A tread section running circumferentially around a tire Tread separation Pulling away of the tread from the tire carcass Treadwear indicators TWI The projections within the principal grooves designed to give a visual indication of the degrees of wear of the tread Vehicle capacity weight The rated cargo and luggage load plus 68 kilograms 150 Ibs times the vehicle s designated seating capacity Vehicle maximum load on the tire The load on an individual tire that is determined by distributing to each axle its share of the maximum loaded vehicle weight and dividing by two Vehicle normal load on the tire The load on an individual tire that is determined by distributing to each axle its share of the curb weight accessory weight and normal occupant weight distributed in accordance with Table of CRF 49 571 110 and dividing by 2 Weather side The surface area of the rim not covered by the inflated tire Wheel center member In the case of a non pneumatic tire assembly incorporating a wheel a mechanical device which attaches either integrally or separably to the non pneumatic rim and provides the connection between the non pneumatic rim and the vehicle or in the case of a non pneumatic tire assembly not incorporating a wheel a mechanical device which attaches either integrally or separably to the non p
21. y Speed Rating The speed rating denotes the speed at which a tire is designed to be driven for extended periods of time The ratings range from 99 miles per hour mph to 186 mph These ratings are listed below Note You may not find this information on all tires because it is not required by law 106 mph 118 mph ale 130 mph 168 mph For tires with a maximum speed capability over 149 mph tire manufacturers sometimes use the letters ZR For those with a maximum speed capability over 186 mph tire manufacturers always use the letters ZR U S DOT Tire Identification Number This begins with the letters DOT and indicates that the tire meets all federal standards The next two numbers or letters are the plant code where it was manufactured and the last four numbers represent the week and year the tire was built For example the numbers 3197 means the 31st week of 1997 The other numbers are marketing codes used at the manufacturer s discretion This information is used to contact consumers if a tire defect requires a recall Tire Ply Composition and Materials Used The number of plies indicates the number of layers of rubber coated fabric in the tire In general the greater the number of plies the more weight a tire can support Tire manufacturers also must indicate the materials in the tire which include steel nylon polyester and others Maximum Load Rating This number indicates the maximum load in kilogr

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