61997-Intrst Man Cvr_Layout 1
Contents
1. LL o o __ __ PP PP __ E o EE iu s 2 27m5a __ PP __ o PP __ 27 OUR COMMITMENT YOU Achieving industry leading customer satisfaction and operating performance by designing manufacturing and delivering high quality trailers throughout North America Thank you for purchasing an Interstate trailer Strength Durability Safety Please call us with comments questions or suggestions Happy Safe Trailering INTERSTATE GROUP L L C CORPORATE OFFICE 3800 Airport Road Nampa ID 83687 208 442 7600 MANUFACTURING PLANTS 224 Carnation Drive 4400 Interstate Way Nampa ID 83687 Kingman AZ 86401 208 466 6777 928 681 5300 3601 Dave Ward Drive Conway AR 72034 501 505 2000 www interstatecargo com Genuine Interstate Parts and Accessories at Parts TrailersPlus Com2. Interstate LoadzRunner THANK YOU FOR CHOOSING Interstate Congratulations on your purchase of the finest enclosed trailer on the market today Interstate builds a wide selection of durable work and play trailers Our name is synonymous with quality and affordability We are confident this trailer will provide solid reliable and safe service throughout your many years of ownership Please complete the form below This information will be needed when contacting us or your local Interstate dealer concerning parts service warranty or other questions you may have Date Purchased Serial Model Dealer Name Address City Zip Code Phone Thank you for buying Interstate Please take a few minutes to fill out your warranty card TABLE OF CONTENTS YOUR INTERSTATE OWNER S MANUAL Trailer Information i Limited Warranty EEE 1 Trailer Decals and Warning Labels 3 Pre Trip Check Points 102 Wides Wheel Lugs Ramp Door Spring TOW Vehicle WINNO rare na 6 Way Plug Wiring Diagram and 6 Way Plug Conversion 7 Checking and Maintaining Your Trailer 9 Initial Checklist Axles Hubs Brakes Wheels Ball Coupler Hitches Hitch Balls and Safety Chains Gooseneck and Fifth Wheel Trailers Breakaway Switch and Battery Jacks Trailer Exterior and Interior Do
3. ROUTINE MAINTENANCE CHECKLIST Check What To Do Each Every Every Trip 3 000 Miles 6 000 Miles NEN 3 Months NE 6 Months Pressure located on side wall Wheel Lugs Tighten to proper Nuts amp Torque Specs Bolts Doors Make sure all are PIE Vents amp closed amp locked Windows before travel Stabilizer Make sure jacks are Jacks up and in locked position Load Make sure load is Distribution properly distributed and secure Welds Check all welds for cracking or separation Hinges Lubricate with light oil and grease zerks with grease Tie Down Check for loose Systems distorted or broken tie down devices Lights amp Check for proper Signals operation amp replace burned out bulbs LOAD DISTRIBUTION Proper trailer loading is key to proper function and safety Uneven or inappropriate loading of your trailer can cause it to be unstable which could result in property and or bodily injury Please follow loading in structions carefully 1 Besure to check your vehicle s towing capacity before towing your trailer 2 Lightweight cargo trailers are not designed to be pulled by trucks with a larger than 1 ton capacity 19 a PODA LOAD DISTRIBUTION Improper use of the weight distribution hitch can cause dam age to your trailer Carefully read the instructions supplied with the distribution hitch Axle Center Line I BE RESPONSIBLE THE THREE MAIN CAUSES OF TRAIL
4. THE RAMP DOOR TORSION SPRING ASSEMBLY MOUNTING HARDWARE AND CABLES ON THIS UNIT CONTAIN TREMENDOUS PRESSURE REPAIRS OR ADJUSTMENTS BY INEXPERIENCED PERSONS OR WITHOUT PROPER TOOLS IS DANGEROUS AND MAY CAUSE SEVERE PERSONAL INJURY OR DEATH DO TEMPT TO REMOVE OR REPAIR ANY PART OF THIS ASSEMBLY HARDWARE OR THE STRUCTURES THAT IT IS ATTACHED TO ALL REPAIRS OR ADJUSTMENTS MUST BE PERFORMED BY TRAINED AND EXPERIENCED SERVICE PER SONNEL ONLY FOR ASSISTANCE IN LOCATING AN AUTHORIZED SERVICE CENTER NEAR YOU PLEASE CALL 888 611 1041 kkkkkkkkkk CAUTION THIS SPRING SYSTEM IS DESIGNED TO OPERATE ON A FLAT SURFACE ONLY DO NOT LOWER DOWN BELOW TIRE GROUND LEVEL DO NOT REMOVE THIS LABEL m Located on interior ramp door by door spring TOW VEHICLE WIRING Tow vehicles must have the correct plug at the rear and be connected to the correct tow vehicle circuits using acceptable practices in wire routing and connections Interstate uses two dif ferent types of plugs Trailers that are not equipped with brakes will have a 4 way flat plug with the wiring code pictured at the right LEFT TURN RUNNING LIGHTS GROUND I RIGHT TURN 4 WAY PLUG TRAILER END All other trailers will have the larger 7 way plug which accommodates electric brakes and has a separate line for inside lights GREEN YELLOW It is important to add a ground wire running from the plug back to the frame of the tow vehicle Safety ch
5. 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 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 kilograms 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 grad
6. Load Range This information identifies the tire s load carrying capabilities and its inflation limits 1 6 TIRE SAFETY TIPS Preventing Tire Damage e Slow down if you have to over a pothole or other object in the road e Do not run over curbs or other foreign objects in the roadway and try not to strike the curb when parking Tire Safety Checklist e Check tire pressure regularly at least once a month including the spare e nspect tires for uneven wear patterns on the tread cracks foreign objects or other signs of wear or trauma e Remove bits of glass and foreign objects wedged in the tread e sure your tire valves have valve caps e Check tire pressure before going on a long trip e Do not overload your vehicle Check the Tire Information and Loading Placard or User s Manual for the maximum recommended load for the vehicle WARNING Tire Inspection When replacing tires consult wheel and tire manufacturers specifications for compatibility Improperly matched wheels and tires may fail and cause property damage serious personal injury or loss of life Even Center Wear Inside amp Outside Wear Smooth Side Wear One Side Feathering Across The Face Cupping Flat Spots Over Inflation Under Inflation Loss of Camber or Overloading Axle Not Square To Frame or Incorrect Toe In Loose Bearings or Wheel Balance F i a
7. 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 and 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 ev
8. the above limitation may not apply to you This warranty gives you specific legal rights You may also have other rights which vary from state to state INTERSTATE GROUP L L C neither assumes nor authorizes any other person to give any other warranty or to assume on its behalf any other obligation or liability This warranty is non transferable from original owner 2 TRAILER DECALS 8 WARNING LABELS FEDERAL ID PLATE MANUFACTURED BY GVWR GAWR COLD INFLATION PRESSURE FRONT KG KPA SINGLE DUAL LB PSI REAR KG KPA SINGLE DUAL LB Ps O THIS VEHICLE CONFORMS ALL APPLICABLE U S FEDERAL MOTOR VEHICLE SAFETY STANDARDS IN EFFECT ON THE DATE OF MANUFACTURE SHOWN ABOVE V I N TYPE gt lt gt Mounted on exterior front roadside of trailer WARNING Check the following points each time before towing trailer Make sure all parts bolts and nuts are tight Secure load to trailer check tilt and tie down mechanisms use extra rope as a safety measure Check tire air pressure when tire is cold Repack wheel bearings once a year preferably in the fall be fore storing trailer Make sure you are not exceeding trailer capacity Make sure the coupler is securely latched to the hitch ball Check each time you stop and leave trailer Cross safety chains under tongue and secure to towing vehi cle If equipped hook up breakaway brake chain with slack to permit cornering Make sure the trailer elec
9. 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 describes 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 Radial Rim diameter code Ratio of height to width aspect ratio Load index 8 Nominal width of speed symbol tire in millimeters U S DOT tire identification number Max Tire ply issable composition nflation and materials pressure used Treadwear traction and temperature grades load rating P 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
10. com plete and submit the registration card will automatically void the Warranty 1 All Warranty requests must be presented to INTERSTATE with the proper arrangements made and approved by INTERSTATE prior to any work being done 2 All Warranty repairs must be performed at INTERSTATE in Nampa ID Kingman AZ or Conway AR unless prior written approval is obtained from INTERSTATE before said repairs begin In certain cases INTERSTATE may at its option elect to have warranty work performed in the field by a qualified repair shop 3 INTERSTATE will not be obligated in any way to pay for repairs made without its specific advance approval Any repairs performed without its ad vance approval INTERSTATE may pay at its sole option in an amount not to exceed what the parts and labor cost would have been if INTERSTATE had performed the repair The parts and labor cost to perform a repair will be lim ited to the customer s original purchase price from INTERSTATE of those items and the installation charges from INTERSTATE for those items 4 Any premium charges for overtime labor service calls towing or transporta tion are the sole responsibility of the customer and will not be paid for by IN TERSTATE WHAT IS NOT COVERED 1 Axles are covered by the manufacturer s warranty as follows Torsion Axles e Two 2 Years for Workmanship such as defects in welds e One 1 Year on moving parts such as Hubs Brakes Bearings e Five 5 Years
11. ER ACCIDENTS ARE Driver error Failure to match speed with conditions Improper loading less than 40 of the cargo weight distrib uted behind the axle s center line TOWING TIPS Trailer swaying is often caused by improper loading Never carry passengers inside the trailer Check hub temperature at each rest stop Allow one car and trailer length between you and the vehicle ahead for every 10 mph of speed 20 SAFETY DEFECTS Reporting Safety Defects If you believe that your vehicle has a defect which could cause a crash or could cause injury or death you should immediately inform the National Highway Traffic Safety Administration NHTSA in addi tion to notifying Interstate If NHTSA receives similar complaints it may open an investigation and if it finds that a safety defect exists in a group of vehicles it may order a recall and remedy campaign However NHTSA cannot be come involved in any individual problems between you your dealer or Interstate To contact NHTSA you may either call the Auto Safety Hotline toll free at 1 888 327 4236 TTY 1 800 424 9153 go to http www safercar gov or write to NHTSA U S Department of Transportation 1200 New Jersey South East Washington DC 20590 You can also obtain other information about motor vehicle safety from http www safercar gov 21 MAINTENANCE RECORD Date ServicePerformed Miles o o PP __ a NENNEN
12. PLER HITCHES It is your responsibility to correctly match your your tow vehicle s hitch ball to your trailer coupler The hitch coupler includes a latch lever Be sure the latch lever is locked and a latch pin is properly secured before towing your trailer 4 DANGER BEFORE TOWING 1 Check vehicle hitch ball and coupler for signs of wear or damage Replace any parts that are worn or damaged before towing 2 Know your trailer and its added load weight Do not exceed lesser of coupler vehicle ball or trailer weight ratings Use only the ball di ameter indicated on your coupler Use of any other ball diameter will create an extremely dangerous condition which can result in ball failure or separation of the coupler and ball 3 Be sure the coupler is secured to the hitch ball and the lock lever Ensure that the ball clamp is properly nested under the ball and is not sitting on top of the ball Re check tightness again after about 50 miles of towing 4 Check that trailer safety chains are properly connected 5 Check that all trailer lighting is hooked up and working correctly RECOMMENDED MAINTENANCE 1 Smear ball socket and clamp face with chassis grease Periodically oil pivot points and sliding surfaces of coupler with SAE 30 weight motor oil 2 When parking or storing your trailer keep the coupler off the ground This prevents dirt build up in the socket 15 HITCHES AND SAFETY CHAINS HITCH BALLS Hitch
13. ains hitches couplers and load levelling equalizer bars will NOT provide an adequate continuous ground and are the cause of many electrical failures In addition any hot line or auxiliary line should be run with an inline fuse If an auxiliary battery is added to the trailer there must be a fuse in stalled between the battery and the load TOW VEHICLE RECEPTACLE WHITE 1 GROUND BLUE 2 BRAKES GREEN 3 RNGLTS BLACK 4 HOT LINE RED 5 L H TURN BROWN 6 R H TURN OPTIONAL YELLOW 7 AUXIL Green wire from White gr from breaka Located behind front crossmember on A frame tube 7 WAY TO 6 WAY PLUG CONVERSION Wire Color Plug Label BLUE gt _ gt S Stop WHITE gt _ gt G D Ground BLACK 2 gt A Auxiliary BROWN gt gt R T Right Turn GREEN gt gt T M Clearance Lights RED _ L T Left Turn HOW CHECK AND MAINTAIN YOUR TRAILER Interstate implemented a Pre Delivery Inspection Checklist to be com pleted by you and your dealer prior to delivery of your trailer However you should still recheck these key points before towing your trailer for the first time Please refer to the manual pages listed for a detailed description of how these items should be checked and maintained INITIAL TRIP CHECKLIST Wheel Lugs See Note Below Bearing Lug amp Tightness Tire Pressure amp Tire Condition CEN Running Lights amp Turn Signals vj 2 Me amp Brake Control
14. all scratches on A Frame and all other exposed steel parts ROOF Inspect your roof at least once a year Trim any loose or flaking mate rial and recoat areas with a roof coating available through any recre ational vehicle dealer Do not allow snow to build up on the trailer roof 17 TRAILER EXTERIOR AND INTERIOR WELDS Check all welds for fractures or cracks every 6 months or every 6 000 miles Also check for any sign of cracking on steel surfaces If any cracking or fractures are detected contact your dealer or Interstate immediately FLOOR It is recommended that you paint your floor with an oil based enamel It promotes longer life and provides easy cleanup On 2 x 8 utility trailer flooring use a high grade water seal or waterproofing formula Do not allow water to accumulate and pool inside the trailer Over time this could cause floor damage Jack up front of trailer and allow water to drain out of the rear door s DOORS WINDOWS AND VENTS Check that all doors windows and roof vents are closed and latched before moving trailer Doors with flush locks should be locked as an added protection against accidental opening from road shock BURNISHING BRAKES Brakes on a new trailer may tend to pull or grab This is normal To cor rect this situation pull your trailer with the trailer brake control slightly engaged for a short distance This will smooth down the brake bands DO NOT LOCK UP WHEELS 18
15. and better overall handling on dry pavement R 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 capability 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 Letter Rating Speed Rating 99 mph 106 mph 112 mph 118 mph 124 mph 130 mph 149 mph 168 mph 186 mph J O ds lt m c do 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
16. balls come in a variety of diameters and capabilities The GVWR is always stamped on the ball Interstate uses a 2 or a 2 ball de pending on the GVWR of the trailer Be sure that the ball is rated NO LESS than the GVWR of your trailer Keep the ball greased to avoid excessive wear NEVER tow trailer with an improper ball size SAFETY CHAINS Always cross your safety chains when hooking up to your trailer e g right safety chain to left side of tow hitch and left safety chain to right side of tow hitch If chains are too long twist to shorten and prevent dragging 16 TRAILER EXTERIOR AND INTERIOR FRONT JACK STANDS STABILIZER JACKS Always remember to block tires before and while using front jack stands and stabilizer jacks Failure to do so could result in front jack or stabi lizer jack malfunction Ensure stablizer jacks are deployed and set prior to entering trailer DOOR HOLD BACKS These devices are intended to hold a door open in grade deviations Do not rely on them to hold door open in windy conditions HINGES Keep all hinges clean and free of debris Lubricate with WD 40 weight or light oil Ramp door hinges are equipped with grease zerks that should be greased every 3 months TRAILER EXTERIOR Aluminum Skin Keep your trailer clean both interior and exterior The aluminum skin should be treated the same as you do your car or truck Wash with soap and water and wax with an automotive type wax Touch up
17. 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 the 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 1 3 GLOSSARY OF TIRE TERMINOLOGY Accessory weight The combined weight in excess of those standard items which may be replaced of the 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 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 Crac
18. ding loose fasteners wear Inspect for wear loss of arch Trailer Brake Inspect wiring for Wiring bare spots fraying etc Weekly Months X EM EIN BN EIN EE LIE EBEN NE NEN REN 13 SERVICE SCHEDULE wheel bolts or nuts every 50 miles for the first 200 miles and after every change in wheel mounting Be sure to use a torque wrench to insure proper settings Check periodically thereafter Torque 60 cone wheel nuts to 85 95 ft Ibs Torque 60 cone wheel nuts to 120 140 ft Ibs NOTE Trailer or wheel manufacturer recommendations may differ from above Always use the trailer or wheel manufacturer s recommendations but do not exceed 120 ft Ibs on or 150 ft Ibs on Always use a torque wrench to verify torque settings Adjust brakes after first 200 miles then at above intervals Prepare bearings by cleaning with solvents to remove old grease Repack by pressing fresh bearing grease into bearing roller area Repack bearings more often if subject to extremely wet conditions If trailer has not been used for more than 2 months bearings should be inspected and repacked if necessary Repack bearings using a high temperature automotive type wheel bearing grease produced by a reputable manufacturer The soap type should be a lithium complex or equivalent Use a NLGI Grade 2 product with a minimum dropping point of 440 F 14 HITCHES AND SAFETY CHAINS BALL COU
19. dium 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 vehicle 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 5th 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 m
20. e 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 comprehensive overview of tire safety including information on the following topics e Basic maintenance e Uniform Tire Quality Grading System e Fundamental characteristics of tires e Tire safety tips Use this 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
21. e can be de stroyed Brakes are designed to operate at up to 600 A good prac tice for both the experienced and the new trailer owner is to touch each hub within ten miles of starting out when bearings have been repacked and at each stop along the way DO NOT try testing the hub after several miles of cautious hard braking See wheel bearing illustration on next page 10 1 TIRE SAFETY INFORMATION This portion of the User s Manual contains tire safety information as required by 49 575 6 Section 2 1 contains Steps for Determining Correct Load Limit Trailer Section 2 2 contains Steps for Determining Correct Load Limit Tow Vehicle 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 as well as the preceding subsections describes the following items e Fire labeling including a description and explanation of each marking on 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 M
22. easuring and adjusting air pressure for proper inflation e Tire Care including maintenance and safety practices 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 load capacities and cargo capacities with varying seating configurations including quantitative examples showing illustrating how the vehicle s 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 Gross Axle Weight Rating GAWR This is 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 i
23. ed 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 and 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 1 5 9 3 Additional Information Light Truck Tires Please refer to the following diagram Maximum load Load amp inflation when used as a dual Light conditions truck tire Maximum load amp inflation when Load inflation used 48 a single limits 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 indicates 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
24. ember 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 to a 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 tractive 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 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
25. er 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 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
26. ht 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 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 15 critical The proper air pressure may be found on 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 GVWR or LEss TIRE AND LOADING INFORMATION d 24010118 The weight of cargo should never exceed 907 kg or 2000 Ibs TRE sue coone pressure PP FRONT seo umes _ man sem INFORMATION Tire ana Loading information Placard Figure 1 7 1 Locate the statement The weight of cargo should never exceed kg or lbs on your vehicle s placard See figure 1 1 This figure equals the available amount of cargo and luggage load capacity 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 capacit
27. king 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 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 The actual weight is 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 The actual weight is 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 me
28. lacing 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 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
29. ler 12 Refer to brake controller owner s manual Ball Coupler Hitches vf oos Breakaway Switch and Breakaway Battery Charge v 16 Trailers with brakes Jacks are UP the travel position Doors Windows Roof Vents Closed and Locked Load Distribution amp Security lug nuts for tightness before 1st trip Then check at 10 miles 25 miles and 50 miles Recheck at least every 3 months or every 3 000 miles or after removal from storage AXLES HUBS BRAKES AXLES HUBS BRAKES Your trailer is equipped with high quality axles Please contact Inter state or your dealer for replacement parts The axle manufacturer s owner s manual is included with the materials received when you pur chased your trailer Proper maintenance and inspection of these com ponents is extremely important in the longevity of your trailer and your personal safety See Important Papers packet included with your new Interstate trailer NEVER neglect axle hub or brake service and maintenance WHEEL BEARINGS Trouble free trailering requires proper bearing lubrication maintenance and inspections Bearings often fail as a result of insufficient lubrica tion or improper adjustment In both cases heat build up occurs Nor mal bearing operating temperature is up to 140 bearings can be touched by hand without burning Above this temperature the grease fails and as a result the bearings drum and or spindl
30. lls 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 listed 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
31. mp Adjust Pressure When Cold Check amp Adjust Pressure When Cold Check amp Unload As Necessary Have Alignment Checked Square Axles Have Alignment Checked Check Bearing Adjustment and Wheel amp Tire Balance Adjust Brakes WHEEL BEARINGS 8 10 1 Grease Seal 4 Hub Drum 7 Spindle Washer 2 Inner Bearing 5 Outer Cup 8 Tang Washer 3 Inner Cup 6 Outer Bearing 9 Spindle Nut 10 Grease Cap WHEELS Check wheels for shape retention or out of round hole elongation This condition could be caused by the lug nuts being too loose or too tight Wheel lug nuts should be tightened with a torque wrench and checked every 3 000 miles or every 3 months thereafter see chart on next page Avoid curbs chuckholes and other road hazards as they can cause damage to your wheels and axles Warranties on trailer and axles do not apply to damage or in juries caused by loose or improperly tightened lug nuts or broken studs 11 PROPER WHEEL MAINTENANCE Axle Wheel Steel Wheel Aluminum Bolt Size Stud Torque Wheel Torque Pattern 2000 504 758 8 5 on 47 3500 904 1204 804 1004 on 4 5200 904 1204 804 1008 6 on 5 6000 904 1204 9548 1158 8 7000 904 1204 9548 1158 8 TIRE PRESSURE The proper air pressure for your tires is printed on the sidewall Pres sure should be checked on the tires when cold Do not raise or lo
32. n 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 maximum weight specified placard The combined weight of the cargo is provided as a single number In any case remember the total weight of 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 15 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 15 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 weig
33. on the Torflex beam only Spring Axles e Two 2 Years for Workmanship such as defects in welds e One 1 Year on the moving parts such as Hubs Brakes Bearings 1 LIMITED WARRANTY 2 Tires are covered by the tire manufacturer s warranty Present all claims for tire adjustments to a tire dealer who handles the brand in question 3 Food service and beverage equipment air conditioners water heaters gen erators and refrigerators are all covered by their respective manufacturer s warranty Warranty validation and claims are to be handled directly with the particular manufacturer 4 Electrical components lights jacks manual or hydraulic plumbing fiber glass parts window doors sealants seals locks couplers and aluminum corrosion are warranted for a one 1 year period from date of purchase 5 Damage or defects resulting from or repairs required because of misuse in cluding but not limited to overloading as determined by the gross vehicle weight and not payload capacity as shown on the vehicle identification label improper loading negligence alteration accident or lack of reasonable and proper maintenance are not covered under the warranty 6 Replacement of maintenance items that are worn out from normal use in cluding but not limited to bearings magnets and brake shoes is not covered under the warranty 7 The harsh nature of the environment rocks debris road salt sand etc that trailers are subjected
34. 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 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 rep
35. ors Windows Vents Routine Maintenance Checklist Load DISTIDUUON eee 20 Reporting Safety Defects 21 Maintenance Record 22 Our Commitment to YOU 24 LIMITED WARRANTY INTERSTATE GROUP L L C hereinafter referred to as INTERSTATE warrants to the original owner that your INTERSTATE trailer will be free from defects in mate rials and workmanship for the following periods Pro Series Three years from the date of purchase lifetime roof warranty LoadRunner One year from the date of purchase five year roof warranty Victory Six months from the date of purchase one year roof warranty All warranties are except as herein limited from the date of purchase provided all stated conditions and exclusions are met and satisfied The obligation of this war ranty shall be limited to repairing or replacing any part or parts which in the opin ion of INTERSTATE shall be proved defective in materials or workmanship under normal use and service during the warranty period commencing with the date of purchase subject to the conditions and exclusions listed below WARRANTY VALIDATION A warranty registration card is included with the dealer paperwork The dealer must fill out and mail the certificate to Interstate within 10 days after mak ing delivery of the trailer This purchaser record is required by law Failure to
36. rubber compound between adjacent plies Pneumatic tire A mechanical device made of rubber chemicals fabric and steel or other materials that when 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 in 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 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 The nominal diameter of the bead seat Rim size designation The rim diameter and width Rim type designation The industry or manufacturer s designation for a rim by style or code Rim width The nominal distance between rim flanges Section width The linear distance between the exteriors of the sidewa
37. 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 pneumatic 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 maintenanc
38. to behind motor vehicles precludes any warranty on paint undercoating or exterior finish 8 Damage caused by loose or improperly torqued lug nuts is not covered under the warranty 9 Loss of time inconvenience loss of use of trailer rental of substitute equip ment loss of revenues or other commercial loss are not covered under the warranty 10 After market additions or changes made to the trailer altering it from its orig inal condition are not covered under the Interstate warranty Trailers covered by this warranty are designed to be towed by a proper vehicle At no time should a vehicle be used with a trailer that exceeds the tow weight man ufacturer s specific limitations Any express warranty not provided herein any remedy for breach of contract which but for this provision might arise by implication or operation of law is hereby ex cluded and disclaimed The implied warranties of merchantability and of fitness for any particular purpose are expressly limited to a term of one 1 year Some states do not allow limitations on how long an implied warranty lasts so the above limitation may not apply to you Under no circumstances shall INTERSTATE GROUP L L C be liable to purchaser or any other person for any special incidental or consequential damages whether arising out of breach of warranty breach of contract or otherwise Some states do not allow the exclusion or limitation of incidental or consequential damages so
39. trical connector is properly con nected and all lights are operating Check brake operation Make sure the jack is raised to its highest position Make sure all gates and latches are secured Located on exterior front roadside of trailer TRAILER DECALS 8 WARNING LABELS WARNING CHECK WHEEL LUGS On first trip tighten wheel lugs at start and every 50 miles for first 200 miles Thereafter check wheel lugs before each trip Following winter storage check before ginning a trip Following excessive braking inspect wheel lugs Located in front of fenders on both sides of trailer NOT A STEP Located over fenders on both sides of trailer da DANGER Heavy Door Stand Clear Failure to comply can result in serious injury Located on exterior of ramp doors by grab handle UM AW AW A DO NOT ENTER TRAILER This trailer may tip and cause injury if not properly attached to the tow vehicle or secured with stabilizer jacks Stabilizer Jacks Located on exterior of ramp doors TRAILER DECALS 8 WARNING LABELS This trailer is 102 wide This width trailer is legal on all U S Federally funded highways Some state highways regulations are less than 102 and many require special permits Please check your local regulations Located on exterior front roadside of trailer Located on exterior front roadside of trailer WARNING EXTREME DANGER
40. wer the pressure to accommodate your load Excessive wear and failure Will result if recommended pressure is not met Balancing is recom mended with every tire change or rotation BRAKES Interstate s trailers are equipped with high quality brakes Repair serv ice and maintenance information for each brake type can be found in the axle manufacturer s owner s manual See Important Papers packet included with your new Interstate trailer Follow the axle man ufacturer s brake instructions for service and to be eligible for warranty provisions RUNNING LIGHTS AND TURN SIGNALS Before each trip ensure all running lights are operating left and right turn signals are working and brake lights illuminate when brakes are pressed 17 SERVICE SCHEDULE Function Check Required Daily Brakes Test for proper function Air Pressure Inflate tires to specifications Lug Bolts or Tighten to proper Nuts torque specs Wheel Rims Inspect for dents damage or out of round Tire Condition Inspect for cuts wear bulging etc Breakaway Test switch Switch operations inspect connections Breakaway Maintain charge Battery inspect connections Brake Shoes Test brake drag amp adjust if required Brake Magnets Inspect for uneven wear Wheel Inspect for wear Bearings and or damage and Cups repack Hub Drum Inspect for heavy scoring or wear Seals Inspect for damage or wear Suspension Inspect for Parts ben
41. y 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 GVWR NOTE THESE TRAILERS ARE 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 2 Locate the GVWR Gross Vehicle Weight Rating of the trailer on your trailer s VIN Certification label 3 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 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 165 on your vehicle s placard 2 Determine the combined weight of the driver and passengers who will be riding in your vehicle 3 Subtract the combined weight of the driver and passengers from XXX pounds 4 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 Ib passengers in your vehicle the amount of available cargo and luggage capacity is 650 165 1400 750 5 x 150 650 Ibs 5 Determine the combined weight of luggage and
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