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TRD-54-FBR

Operation

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1.8

Pre-Trip Inspection

There are some items on every vehicle combination that can be and should be

inspected prior to every trip that require no special knowledge, training, or sophisti-
cated equipment.

Before beginning a trip, make a thorough visual inspection of the trailer for cracks

in the structure, or bent components such as the tongue or frame. Check for any miss-
ing fasteners in suspension as well as other areas, and look for broken or bent springs
and spring hangers or otherwise damaged components.

Verify that the hitch on the tow vehicle is the correct size and configuration to fit the

trailer coupling. The hitch must be rated to meet or exceed the Gross Vehicle Weight
Rating (GVWR) of the trailer.

Check the hitch height of the trailer and compare it to the tow vehicle; it is very

important that the trailer be towed in the level position when loaded. In order to achieve
the correct hitch height, elevate the tongue of the trailer slightly (1" to 2") by adjusting
the trailer hitch to compensate for settling of tow vehicle springs when loaded.

Always visually inspect hitch for unusual appearances such as bent components,

cracks in welds or chipped paint where stress cracks may appear from high loads.

Check tires for proper inflation. Tire manufacturers recommend checking inflation

pressure while trailer is not loaded and tires are cool. This will provide a more accurate
reading. A drop of 10 PSI in tire pressure can reduce the carrying capacity of the tire as
much as 20%. This reduced capacity could cause tire failure and poor tire life.

Maintaining proper wheel nut torque value is essential to prevent wheel end sepa-

ration or potential damage to the hub or wheel. Always check wheel nuts every 50 to
100 miles for the first 200 miles of operation, then periodically thereafter. The same
procedure should be repeated after dismount and remount of wheels. It is important to
follow the specified tightening sequence recommended in the tire maintenance section
of this manual.

Summary of Contents for TRD-54-FBR

Page 1: ...iodic Maintenance 15 2 1 Structural Components 16 Sub Frame 16 Deck 16 2 2 Sub Assembly Components 16 Drawbar Eye 16 Binkley Jack 17 Cushion Cylinder 17 Deck Latch 17 Deck Hinge Assembly 17 2 3 Rear Impact Guard RIG 18 2 4 Running Gear 19 Suspension 19 Axle Alignment 21 Axle End Component Disassembly 21 Hub Inspection 21 Broken or Damaged Studs 21 Brake Drum Inspection 22 Brake Drum Troubleshootin...

Page 2: ...Stroke Adjustment 32 SlackAdjuster Function Test 33 Brake Lubrication 33 Section 3 Parts 34 3 1 Structural Components 34 Sub frame 34 Deck Assemblies 36 3 2 Major Sub Assemblies 38 Drawbar Eye 38 Binkley 2 Speed Jack 39 3 3 Running Gear 40 Suspension 40 Axle End Components 42 Brakes 44 Bearings and Hubs 45 3 4 Wheels and Tires 46 3 5 Electrical 48 Harnesses and Lights 48 Electrical Plug 52 ABS Ele...

Page 3: ...d stability limits and how driver awareness and skill can help compensate for these factors This knowledge will assist you to safely enjoy the maximum utility and productivity from your trailer First and foremost DO NOT operate the trailer until you have read and fully under stand this instruction and operating manual It is also important that each and every person who operates the trailer be give...

Page 4: ...ot recommended to carry the full rated capacity of the trailer Extreme concentrated appli cations may require additional support for the load 1 4 Vehicle Load and Handling Limits Vehicle handling limits can be greatly affected by the weight of a load its place ment the amount of weight distributed over the axles and whether or not the load is secured properly Tow vehicle and trailer combinations a...

Page 5: ...trailer wheels will add significantly to the handling characteristics of the combination and allow the driver to utilize all the design responses of the vehicle to make evasive maneuvers in the safest manner Irregular terrain steep grades and crowned roads especially rural roadways free ways exit ramps curves bumps and depressions introduce forces into a tow vehicle trailer combination that could ...

Page 6: ...amiliar the driver is with the vehicle and the road the less likely he will need to make abrupt emergency maneuvers which will take the vehicle to its limits Control and stability may be main tained if the driver knows his vehicle his load and the road Either braking or accelerating while cornering can significantly reduce the control lability and stability of the vehicle and should be avoided The...

Page 7: ...ry or death DANGER DANGER indicates an imminently hazardous situation which if not avoided will result in death or serious injury WARNING WARNING indicates a potentially hazardous situation which if not avoided could result in death or serious injury CAUTION CAUTION indicates a potentially hazardous situation which if not avoided may result in minor or moderate injury CAUTION CAUTION used without ...

Page 8: ...ll freely until they are removed To remove the release tool assemblies use the following procedure see illustration on next page 1 Hook up trailer to tow vehicle and or put air to the air brake system on the trailer 2 Apply approximately 70 psi of air pressure to the brake system this should be sufficient to remove the spring pressure and loosen the release tool assemblies NOTE The release tools c...

Page 9: ... page 9 TRD 54 FBR Operation Spring Brake Chamber Rubber Seal Release Tool Assembly O P E R A T I O N Release Tool Assembly in storage position ...

Page 10: ...nd if it finds that a safety defect exists in a group of vehicles it may pursue a remedy campaign and recall those vehicles However NHTSAcannot become involved in individual problems between you your dealer or Gem State Mfg Inc To contact NHTSA you may either call the Vehicle Safety Hotline toll free at 1 888 327 4236 TTY 1 800 424 9153 go to http www safecar gov or write to Administrator NHTSA 40...

Page 11: ...rder to achieve the correct hitch height elevate the tongue of the trailer slightly 1 to 2 by adjusting the trailer hitch to compensate for settling of tow vehicle springs when loaded Always visually inspect hitch for unusual appearances such as bent components cracks in welds or chipped paint where stress cracks may appear from high loads Check tires for proper inflation Tire manufacturers recomm...

Page 12: ...e leg when it is off the ground Check all safety chains and their attachment to both the trailer and the towing ve hicle Connect safety chains to tow vehicle using crossed pattern under tongue Allow slack for turning but avoid having chains drag on pavement Make certain that all attachment devices are properly installed and in good working order For trailers with air brakes connect the Glad Hands ...

Page 13: ...when it is not easy to calculate the total load or determine the load center of gravity A decal on the trailer similar to the one shown below indicates the correct place ment of the load Load the trailer so that 60 of the total load weight is forward of the arrow and 40 is rearward of the arrow This will ensure that the proper load balance and tongue weight are achieved WARNING MAINTAIN 60 OF LOAD...

Page 14: ... Prior to loading or unload ing it is very important that ramps are adjusted to proper spacing for equipment being transported When loading equipment onto deck drive slowly forward until appropriate tongue load is achieved Ramps are designed to support rear of trailer during loading and unloading Ramps must be in stored position during transport Trailers With Tilt Decks It is very important that t...

Page 15: ...correct hitch height 9 Check lights for correct operation Quarterly or 10 000 miles 9 Check wheel flange nut torques see page 26 9 Check brakes for adjustment see page 30 Semi Annually or 25 000 miles 9 Lubricate jack see page 17 9 Re torque suspension fasteners see page 20 9 Inspect and lubricate brakes and linings see page 33 9 Lubricate tilt deck hinges see page 17 9 Replace wheel bearing lubri...

Page 16: ...sion If the trailer has been overloaded or in an accident inspect the tilt deck carefully It may be necessary to apply a new coat of wood preservative after decking has aged and become dry The best time to apply preservative is during warm weather for better penetration Replace decking when necessary Occasionally check for loose missing or broken deck screws 2 2 Sub Assembly Components Drawbar Eye...

Page 17: ...he cylinder has leaked or if the deck action has become jerky or sluggish Fully collapse the cylinder and then remove the filler plug and drain out the old fluid Add 10W hydraulic fluid until the cylinder is full and all the air has been expelled Deck Latch The latch assembly is designed with replaceable self lubricating bushings at the wear points See the appropriate pages of the Parts section of...

Page 18: ... the forces of an impact If they show any signs of deformity from having been impacted by the RIG pivot arms they should be replaced immediately In no case should the crush blocks be straightened or re paired in any way they both must be REPLACED if deformed by the RIG pivot arms Also check the deck beam flanges that the crush blocks bolt to for damage or bending The flanges may have to be straigh...

Page 19: ... of the suspension have worked together for a very short period of time re torquing the bolts is necessary to insure that undue move ment which results in excessive suspension wear does not occur During the first maintenance check the trailers axle alignment should be examined and adjusted Alignment should also be checked following any maintenance or repair procedure performed on the suspension Vi...

Page 20: ...em Oiled Torque Dry Torque 1 1 1 8 7 Rocker Bolt 590 lb ft 790 lb ft 2 5 8 18 Spring Retainer Bolt 35 lb ft 50 lb ft 3 1 14 Radius Rod Bolt 540 lb ft 720 lb ft 4 5 8 18 Radius Rod Clamp Bolt 130 lb ft 170 lb ft 5 7 8 14 Axle U bolt with pattern 350 lb ft 470 lb ft Rocker bolt may be of the Huck type and have a permanent clinch end instead of a nut If so no torquing is necessary 5 1st 2nd 4th 3rd I...

Page 21: ...ever the hub equipment on your trailer must be removed for inspection or maintenance refer to the Meritor Maintenance Manual 14 Trailer Axles beginning with Section 2 Hub Inspection Clean the hub with a commercial solvent for inspection Check for cracks elon gated holes evidence of overheating or foreign object damage The hub is crucial to safe vehicle operation and any doubt about its condition s...

Page 22: ...at checks or other surface defects resulting from normal use The following should be noted when turning the brake drum 1 The maximum diameter cast into the back plate portion of the brake drum is the discard diameter If any portion of the brake drum exceeds the maximum diameter it must be replaced 2 When preparing to machine a drum allow at least 040 under the maximum diameter for further normal i...

Page 23: ...AKE SYSTEM IM PROPER ADJUSTMENT OR INFERIOR LINING CHECK BRAKE DRUM LINING CONDITION AND BRAKE BALANCE AVOID CONDITIONS OR LOADS WHICH CREATE HIGH BRAKE TEMPERATURES BLUE OR DISCOLORED BRAKE SURFACE EXCESSIVE HEAT FROM DRAGGING BRAKES OR BRAKE IMBALANCE BETWEEN TRACTOR AND TRAILER MACHINE BRAKE DRUM CHECK RETURN SPRINGS AND FOR BINDING BRAKE ACTUATION SYSTEM NOISE CHATTER OR PULSATING BRAKE HEAT S...

Page 24: ...LT HOLE WHEEL HITTING BRAKE DRUM INSTALLATION ON DIRTY HUB MOUNTING FLANGE SEPARATED FROM HOOP SECTION OF DRUM REPLACE DRUM CLEAN THE HUB PRIOR TO INSTALLING NEW DRUM INCORRECT APPLICATION REPLACE BRAKE DRUM WITH CORRECT PART HEAT SPOTTED OR HARD SPOTS IN BRAKE SURFACE HIGH LOCALIZED HEATING AND COOLING CYCLES GRIND HARD SPOT AND MACHINE DRUM BALANCE WEIGHT FALLEN OFF OR NOT A BALANCED DRUM OUT OF...

Page 25: ...e wheels on your trailer be certain that the replacement units match the originals in the following regards 1 Type The disc wheels and capnuts on your trailer are of the hub pilot design 2 Material Do not mix aluminum and steel disc wheels or aluminum and steel disc wheel capnuts This may result in incorrect components being used to secure the wheels which can lead to loose wheels resulting in a c...

Page 26: ... with great force and can cause serious injury or death Wheel Torquing Procedures When installing the wheels make sure that the hub and wheel mating surfaces are clean and free of rust dirt and excess paint The studs and threads must be clean dry and in good condition for applying installation torque The hand torque wrench or air wrench used to install the wheels must be periodi cally calibrated t...

Page 27: ...ire mounting procedures as outlined by the Rubber Manufacturers Association or the tire manufacturer Inflation Pressure Correct tire inflation pressure for both the 215 75R 17 5 tires and the 255 70R 22 5 tires is 125 psi and is the most important factor in tire life Inflation pressure should be as recommended by the manufacturer for the load Pressure should be checked cold before operation Do not...

Page 28: ... per tire catalog Side Wear Loss of camber or over loading Adhere to load limits Have axle aligned Toe Wear Incorrect toe in Have axle aligned Cupping Loose bearing or out of balance Adjust bearing balance tires Flat spots Wheel lockup or tire skidding Adjust brakes avoid sudden stops Wear Pattern Cause Corrective Action Tire Wear Diagnostic Chart Maintenance ...

Page 29: ...ltage with a test lamp or volt meter to verify that the electrical system is functioning properly If it is then replace the lamp if not then trouble shoot the electrical system Junction Block The junction block requires no regular maintenance If an electrical problem devel ops check for corroded or loose terminals Seven Way Plug The plug should be kept clean and free of dirt If an electrical probl...

Page 30: ...breathing dust 2 Avoid machining filing or grinding the brake linings 3 Do not use compressed air or dry brushing for cleaning Dust can be removed with a damp brush RISK OF PERSONAL INJURY Whenever it becomes necessary to jack the trailer it is up to you to ensure that the trailer or axle is supported securely Use blocks or jack stands on solid ground especially if you are going to be working unde...

Page 31: ... b b Measure the free stroke Make the same two measurements as described above for measuring the applied stroke but instead of air pressure use a lever to move the slack adjuster arm until the brake shoes contact the drum This distance should be between 1 2 to 5 8 If the free stroke is good but the applied stroke is too long then there is a problem with the foundation brake Check the foundation br...

Page 32: ...wl The pull pawl can be disengaged by prying up on it with a screwdriver at least 1 32 2 Turn the adjusting nut in the counterclockwise direction until the linings touch the drum and then turn the adjusting nut in the opposite direction clockwise 1 2 turn 3 Repeat the free stroke measurement procedure If it is necessary to adjust the stroke turn the adjusting nut 1 8 turn clockwise to lengthen the...

Page 33: ...g the 22 turns then the slack adjuster is not working correctly and should be rebuilt or replaced 4 Reinstall the slack adjuster on the axle and check the free stroke length Adjust if necessary For more information regarding the slack adjuster refer to Meritor Maintenance Manual 4B Automatic Slack Adjuster Brake Lubrication Every six months or 50 000 miles the brake system should be lubricated wit...

Page 34: ...uantity Description Part No 1 1 Deck and Sub frameAssembly SA 14391 2 2 Safety Chain and HookAssembly 1 2 ASSY 3 2 Front Hanger 7701 01 4 4 Center Hanger 16180 01 5 2 Rear Hanger 7703 01 6 1 Tool Box LidAssembly SA 01144 These items are included in Sub frameAssembly SA 14391 2 3 6 5 4 ...

Page 35: ... page 35 TRD 54 FBR Parts P A R T S THIS PAGE LEFT BLANK INTENTIONALLY ...

Page 36: ...eck Lumber 2 1 8 X 10 24 5 3 Deck Lumber 2 1 8 X 12 10 6 1 Deck Lumber 2 1 8 X 12 24 7 240 Torx Deck Screws 1 4 20 x 3 32523 8 2 TrailMax Mudflap B30PCB 9 2 Mudflap Bracket MFW 2375 10 2 RampAssembly SA 14569 11 1 Ramp Springs Left C 14495 12 1 Ramp Springs Right C 14494 13 2 Hinge Pin C 09061 14 2 Ramp Pin C 09071 15 2 Mid Hinge Bracket SA 09130 ...

Page 37: ... page 37 TRD 54 FBR 3 7 4 6 5 10 12 14 8 9 2 13 15 1 ...

Page 38: ... FBR Parts 3 2 Major Sub Assemblies Drawbar Eye Ref Quantity Description Part No 1 1 Premier 300 Drawbar Eye 300 2 4 3 4 x 2 1 2 Bolt Grade 8 NF 18992 3 4 3 4 Lock Washer 33632 4 4 3 4 Hex Nut Grade 8 NF 36466 1 4 2 3 ...

Page 39: ... page 39 TRD 54 FBR Parts P A R T S Binkley 2 Speed Jack Ref Quantity Description Part No 1 1 Binkley 2 Speed Jack LG4701 72 2 1 Universal Crank LG0083 01 3 1 Jack Handle Extension SA 04291 1 2 3 ...

Page 40: ...dius Rod Bolt 719 02 7 6 2 Leaf Medium Arch Spring TS 325 01 8 12 U bolt 7816 11 9 6 Spring Seat 301 01 10 6 Bottom Plate 706 01 11 24 Washer 35 00 12 24 Hex Nut 34 04 13 4 Radius Rod 20 25 16398 05 14 4 Equalizer 16160 01 4 Equalizer Bolt Kit 16353 01 15 1 Equalizer bolt 16150 01 16 1 Locknut 11154 00 17 1 Washer 837 00 18 2 Spacer sleeve 756 00 19 2 Spacer sleeve bolt 759 00 20 2 Hex lock nut 37...

Page 41: ... page 41 TRD 54 FBR Parts P A R T S 7 10 11 15 1 2 3 9 8 12 13 14 17 16 21 20 18 19 4 5 6 ...

Page 42: ...ainer Washer 1229 J 868 5 2 Retaining Ring 1229 X 1116 6 2 Bracket Assembly A 3105 V 282 7 2 Slack Adjuster R803205 8 2 Outer Bushing 1225 A 833 2 Inner Bushing 1225 B 834 9 2 Retaining Ring 1229 D 3124 Note Kit names are bold type while component names are regular type kit components are indexed under the kit name Kit component quantities are per kit other parts and kit quanti ties are per traile...

Page 43: ... page 43 TRD 54 FBR 1 2 9 3 8 6 7 4 5 Parts ...

Page 44: ...p Ring 1229 T 3166 5 2 Anchor Pin 1259 N 274 6 2 Anchor Pin Bushing 1225 B 496 7 2 Return Spring Pin 1218 G 85 8 1 Return Spring 2258 B 704 Note Kit names are bold type while component names are regular type kit components are indexed under the kit name Kit component quantities are per kit other parts and kit quanti ties are per trailer Note Quantities shown are per brake 1 2 3 7 4 5 6 8 Parts ...

Page 45: ...tud E 5997 5 1 Wheel Hub Non ABS Hayes 450002 1 Wheel Hub ABS Webb 20271CW3T 80 6 1 Brake Drum Webb 63680 7 1 Outer Bearing Cup HM212011 8 1 Outer Bearing Cone HM212049 9 1 Axle Jam Nut E 540 10 1 Inner Jam Nut Washer E 573 11 1 Outer Jam Nut E 572 12 1 Oil Cap Seal Stemco 330 3009 13 1 Oil Cap Stemco 340 4009 Note Quantities shown are per wheel 2 1 3 4 5 6 7 8 9 10 12 13 Parts ...

Page 46: ...tity Description Part No 1 2 Tire 215 75R 17 5 2 2 Wheel 17 5 x 6 75HC P617 0778 B8 W4 3 2 Valve Stem 572 4 8 22mm x 1 5 Wheel Nut R005991 Note Tires are not available through Gem State Manufacturing contact your local equip ment tire retailer for replacement parts ...

Page 47: ... page 47 TRD 54 FBR THIS PAGE LEFT BLANK INTENTIONALLY Parts P A R T S ...

Page 48: ...unting grommet 10704 7 5 Red clearance lamp sealed 10205R 8 4 Oval stop turn tail light sealed 60202R 9 4 Oval mounting grommet 60700 10 1 License plate lamp 26331 11 2 Boot Kit 2 connector 77850 1 Boot Kit 6 7 connector 77852 3 Boot Kit Filler 77853 2 Boot Kit 4 5 connector 77851 12 1 Junction Box 8 way 77808 13 1 Harness Main Feed 76210A Note Kit names are bold type while component names are reg...

Page 49: ... page 49 TRD 54 FBR 13 1 5 6 6 7 8 9 10 12 11 4 3 2 Parts P A R T S ...

Page 50: ...0 TRD 54 FBR Parts Ref Quantity Description Part No 1 E 5 Electrical Kit K00061 1 1 Harness Marker 50358 2 2 Amber clearance lamp sealed 10205Y 3 2 Mounting grommet 10704 4 1 Boot Kit 2 connector 77850 1 4 2 3 ...

Page 51: ... page 51 TRD 54 FBR Parts P A R T S THIS PAGE LEFT BLANK INTENTIONALLY ...

Page 52: ...9 Electrical Kit K01185C 1 1 Harness ABS 52200 0240 2 1 Amber ABS lamp sealed 30257Y 3 1 Mounting Grommet 30700 4 1 Boot Kit 2 conductor 77850 4 1 Boot Kit 4 5 conductor 77851 5 2 Sensor Extension Cable OW4497130080 6 1 ABS Power Cable OW4493280300 Note Kit names are bold type while component names are regular type kit compo nents are indexed under the kit name Kit component quantities are per kit...

Page 53: ... page 53 TRD 54 FBR Junction Box shown for reference only 5 4 1 3 2 6 Parts ...

Page 54: ...x 28 TA32002 028 17 1 Electronic Control Unit ECU OW4005001020 18 1 Pipe Nipple F160060E 19 1 Male Branch Tee 3 8 x 1 4 PBVS272NTA 6 4 20 1 Street Elbow 45 PB2214P 6 6 21 1 Spring Brake Control Valve OS110500OE 22 2 Allen Head Pipe Plug FI3 8 1 Tri Axle Air Kit AKA3 23 30 3 8 Tubing Blk NTPFT6BINOE 24 390 1 2 Tubing NTPFT8BREDINOE 25 1 Ears are Opposite 9508 1488 AT9534 26 1 Plug F13 4 27 2 Pipe P...

Page 55: ... page 55 TRD 54 FBR Parts Detail shown on follow ing pages P A R T S 4 7 5 6 2 1 3 3 ...

Page 56: ... page 56 TRD 54 FBR Parts Hose end fitting included with 3 8 hose assemblies Hidden under tank 12 16 10 11 12 13 11 11 12 12 14 15 11 9 8 ...

Page 57: ... page 57 TRD 54 FBR Parts Hidden between ECU and tank P A R T S 13 5 20 22 18 17 4 21 13 6 19 15 ...

Page 58: ... page 58 TRD 54 FBR Parts 25 26 not shown 32 23 34 39 24 33 32 39 29 38 ...

Page 59: ... page 59 TRD 54 FBR Parts P A R T S 31 28 30 36 40 32 32 35 30 37 35 27 ...

Page 60: ...ve in your immediate area If you do not have or can not find a representative in your area then contact the factory WarrantyAdministrator for as sistance 1 800 447 0213 4 Give a detailed description and nature of the problem Also leave contact name s phone no and or e mail address 5 A claim will be processed and reviewed for warranty approval The factory Warranty Administrator must authorize all W...

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