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TD-42-T

Operation

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Section 1. Operation

1.0

Introduction

This section describes how trailers can have different operational characteristics

based on design, load configuration, gross weights, suspension characteristics, articu-
lation and extreme differences between loaded and unloaded weights.

Trailers have safe operating limits just as automobiles, airplanes, and other ve-

hicles. The interaction of the vehicle characteristics, maintenance, load, roadway,
weather, the skill of the driver and vehicle speed affect these limits. Knowledge of how
these factors affect the vehicle’s operating limits and utilization of defensive driving
techniques should result in safer driving.

1.1

Purpose

The purpose of this section is to describe how the vehicle characteristics, mainte-

nance, road conditions, and weather can affect trailer control and 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 given the opportunity to read this manual.

1.2

Rating

Gross Axle Weight Rating (GAWR) is the rated load-carrying capacity of an indi-

vidual axle and wheel assembly. It represents the load that may be steadily sustained
by the components in the system; i.e., tires, wheels, hubs, bearings, axles, brakes,
suspension, sub-frame, etc. with the GAWR limited by the component with the lowest
working rating. Consideration of environmental and operational factors may require the
manufacturer to reduce the nominal rating.

Gross Vehicle Weight Rating (GVWR) is the maximum rated combined weight of a

trailer and its payload (uniformly distributed) based on its structural capabilities.

Содержание TD-42-T

Страница 1: ...nce 17 2 0 Periodic Maintenance 17 2 1 Structural Components 18 Sub Frame 18 Deck 18 2 2 Sub Assembly Components 18 Drawbar Eye 18 Binkley Jack 19 Cushion Cylinder 19 Deck Latch 19 Deck Hinge Assembly...

Страница 2: ...rake Lubrication 35 Section 3 Parts 36 3 1 Structural Components 36 Sub frame 36 Deck Assemblies 37 3 2 Major Sub Assemblies 38 Drawbar Eye 38 Binkley 2 Speed Jack 39 Cushion Cylinder 40 Deck LatchAss...

Страница 3: ...tability 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...

Страница 4: ...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...

Страница 5: ...ailer 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 m...

Страница 6: ...liar 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 t...

Страница 7: ...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...

Страница 8: ...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...

Страница 9: ...page 9 TD 42 T Operation Spring Brake Chamber Rubber Seal Release Tool Assembly O P E R A T I O N Release Tool Assembly in storage position...

Страница 10: ...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 de...

Страница 11: ...er 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 in...

Страница 12: ...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 sla...

Страница 13: ...n 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 placement of the load Load the trailer...

Страница 14: ...ior 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 tong...

Страница 15: ...s to be used with chain slots When securing loads with chains the chains should not exceed angles shown in illus trations below Viewed from above chain should not be angled more than 45 degrees in eit...

Страница 16: ...page 16 TD 42 T THIS PAGE LEFT BLANK INTENTIONALLY...

Страница 17: ...correct hitch height Check lights for correct operation Quarterly or 10 000 miles Check wheel flange nut torques see page 28 Check brakes for adjustment see page 32 Semi Annually or 25 000 miles Lubr...

Страница 18: ...on 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...

Страница 19: ...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 cylinde...

Страница 20: ...e 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 p...

Страница 21: ...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...

Страница 22: ...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 17...

Страница 23: ...er 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...

Страница 24: ...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 dis...

Страница 25: ...E 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 EXC...

Страница 26: ...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...

Страница 27: ...heels 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 no...

Страница 28: ...th 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 pa...

Страница 29: ...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...

Страница 30: ...r 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 balan...

Страница 31: ...ge 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 junctio...

Страница 32: ...athing 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 be...

Страница 33: ...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 sho...

Страница 34: ...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 adjus...

Страница 35: ...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...

Страница 36: ...n Part No 1 1 Sub frameAssembly SA 03169 2 2 Safety Chain and HookAssembly 3 8 ASSY 3 2 Front Hanger 7701 01 4 2 Rocker Hanger 16319 01 5 2 Rear Hanger 7703 01 6 2 Lower Latch Side Plate C 04019 7 1 T...

Страница 37: ...49 2 2 StepAssembly SA 04069 3 2 Deck Lumber 2 1 8 X 8 24 4 9 Deck Lumber 2 1 8 X 10 10 5 1 Deck Lumber 2 1 8 X 10 24 6 5 Deck Lumber 2 1 8 X 12 10 7 2 TrailMax Mudflap B30PCB 8 2 Mudflap Bracket MFW...

Страница 38: ...T 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...

Страница 39: ...page 39 TD 42 T 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...

Страница 40: ...page 40 TD 42 T Cushion Cylinder Ref Quantity Description Part No 1 1 Cushion Cylinder 5 X 12 5012 1 Parts...

Страница 41: ...page 41 TD 42 T THIS PAGE LEFT BLANK INTENTIONALLY...

Страница 42: ...2 Adjusting Bolt 15359 2 1 Latch Hook C 04109 3 2 Glide Latch Bearing GFI 1618 08 4 1 Latch Pin C 06050 5 2 E clip SE 982 D 10385 00128 Lower Latch Assembly 1 1 LatchArm Assembly SA 12552 2 1 Latch H...

Страница 43: ...page 43 TD 42 T Parts P A R T S 1 5 Upper Latch Assembly 4 3 2 2 5 1 3 Lower Latch Assembly 4...

Страница 44: ...e Assembly Ref Quantity Description Part No 1 1 Deck Hinge Assembly SA 04027 2 2 Hinge BracketAssembly SA 07099 3 2 Hinge Pin C 06179 4 2 3 8 24 Top Lock Nut Gr C Zinc 37304 5 2 3 8 24 x 3 1 2 Cap Scr...

Страница 45: ...1 Torsion BlockAssembly 8020141 9 1 Adjustable Radius Rod 16398 04 10 1 Torsion Block Pivot Pin C 12229 11 1 Linkage Pin Short C 12239 12 2 Linkage Pin Long C 12249 13 2 5 8 18 x 1 3 4 Cap Screw Gr 8...

Страница 46: ...s Rod 19 25 16398 04 6 8 Flanged Locknut 10562 00 7 8 Radius Rod Bolt 719 02 8 4 3 Leaf High Arch Spring TS 365 00 9 8 U bolt 7816 11 10 4 Bottom Plate 706 01 11 16 Washer 35 00 12 16 Hex Nut 34 04 1...

Страница 47: ...page 47 TD 42 T Parts P A R T S 16 2 14 13 15 9 1 4 3 7 5 6 8 10 11 12...

Страница 48: ...Description Part No 1 2 Tire 255 70R 22 5 2 2 Wheel 22 5 x 8 25 28408 3 2 Valve Stem 572 4 10 22mm x 1 5 Wheel Nut R005991 Note Tires are not available through Gem State Manufacturing contact your loc...

Страница 49: ...page 49 TD 42 T Parts P A R T S THIS PAGE LEFT BLANK INTENTIONALLY...

Страница 50: ...t 10704 9 5 Red clearance lamp sealed 10205R 10 4 Oval stop turn tail light sealed 60202R 11 4 Oval mounting grommet 60700 12 1 License plate lamp 26331 13 1 Harness ABS 52200 0084 14 1 Amber ABS lamp...

Страница 51: ...page 51 TD 42 T P A R T S Parts 2 1 3 4 5 6 7 8 9 8 10 11 12 13 17 16 15 14...

Страница 52: ...ical Plug Ref Quantity Description Part No 1 1 Seven Way Plug and Spring PL 15 730 Brown Tail and Marker Blue ECU Power Electric Brakes Black Accessories Yellow Left Turn White Ground Green Right Turn...

Страница 53: ...page 53 TD 42 T Parts THIS PAGE LEFT BLANK INTENTIONALLY...

Страница 54: ...8 Nylon Tubing Black NT PF6BIN0E 10 1 Air Tank 1200 2800 cu in AT1211 11 4 Hose Assembly 3 8 x 3 8 x 30 TA32002 030 12 4 Hose Assembly 3 8 x 3 8 x 62 TA32002 062 13 3 Street Elbow 90 PB2200P 6 6 14 1...

Страница 55: ...page 55 TD 42 T Parts P A R T S Detail shown on follow ing pages 4 7 5 6 2 1 3 3...

Страница 56: ...page 56 TD 42 T 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...

Страница 57: ...page 57 TD 42 T Parts Hidden between ECU and tank P A R T S 13 5 20 22 18 17 4 21 13 6 19 15...

Страница 58: ...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...

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