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INSPECTION

Inspect the inner and outer wheel bearing cups, cones
and rollers for excessive wear or damage.

Refer to bearing and axle manufacturer’s manuals for
inspection and replacement requirements.

LUBRICATION

For maximum bearing life, inspect wheel bearings and
lubricant periodically, change lubricant regularly, and
clean the hub assembly properly.

If you do not clean the hub assembly properly both
originally and in subsequent service, you must adhere
to a shorter lube change schedule. When adding oil or
checking oil level, be certain to clean the cap and plug
before disassembling, to help keep out dirt and road
grime.

When you clean and dry parts or bearings for later
use, pack and coat them with wheel bearing lubricant
and wrap in clean waxed paper to prevent surface
corrosion that might cause premature bearing failure.

1. Remove wheel hub and bearing cones. Clean all

old grease or oil from wheel hub, bearing cones,
and hub cap with kerosene or diesel fuel oil and a
stiff fiber (not steel) brush.

2. Allow the cleaned parts to dry, or dry them with a

clean absorbent cloth or paper. Grease and oil
will not adhere to and protect a surface wet with
solvent. The solvent may dilute the lubricant.
Clean and dry your hands and all tools.

3. Inspect oil seals, oil seal wiping surfaces, bearings,

and bearing cups for indications of wear or damage.
Replace any worn or damaged parts. Handle the
bearing carefully during inspection (and packing, if
grease is used) so the cage will not be bent or the
rollers and cone damaged.

GREASE-LUBRICATED WHEEL BEARING

Depending on operating conditions, speed, and loads,
change lubricants whenever you replace seals, when
you reline brakes, or every 100,000 miles (or Spring
and Fall if yearly mileage is less).
At rebuild time, before you install wheel bearings onto
spindle, coat bearing journals (to deter fretting corrosion)
with a film of Lithium, 12-Hydroxy stearate grease or its
equivalent.

When you service grease-lubricated wheel bearings:

1. Pack bearing with pressure packer, if possible. If not,

pack by hand, forcing the grease into the cavities
between the rollers and cage from the large end of
the cone.

2. Pack the hub between the two bearing cups with

grease to the level of the smallest diameter of the cup.

3. Assemble the hub and bearings on the axle, being

careful not to damage the oil seals or bearing.
Adjust the bearings.

OIL-LUBRICATED WHEEL BEARING

Check oil-lubricated wheel bearings every 1,000 miles.

Change oil when you replace seals, when you reline
brakes, or at least once a year. Use a gear-type oil:
SAE 140 if temperature is above freezing, SAE 90 if
temperature is below freezing, or a multipurpose oil
with an SAE range of 85 to 140 for year-round
conditions.

SERVICE

When you service oil-lubricated wheel bearings:

1. Wipe a film of oil on the bearing spindle to prevent

rust behind the inner bearing cone.

2. Assemble the hub and bearings on the axle, being

careful not damage the oil seals or bearings. Adjust
the bearings.

3. Fill hub with oil to level indicated on cap, as shown

in the illustration on the opposite page (pg. 13).

4. Rotate wheel and recheck lubrication level.

DANGER

DO NOT USE GASOLINE. Also, do

not clean these parts in a hot solution tank or
with water and alkaline solutions such as sodium
hydroxide, orthosilicates or phosphates.

NOTICE:

Always clean cap and plug before

reassembly.

RECOMMENDED WHEEL BEARING
GREASE SPECIFICATIONS

Soap Type – Lithium, 12-Hydroxy stearate

or equivalent.

Consistency – NLGI No. 2 or NLGI No. 1

Corrosion and Oxidation Inhibitors

Base Oil – Solvent Refined Petroleum Oil

Base Oil Viscosity
at 210˚ F. . . . . . . . . . . . . 75 SUS (Minimum)

Pour Point . . . . . . . . . . . + 10˚ F. (Maximum)

12

Summary of Contents for 42101401

Page 1: ...MAINTENANCE MANUAL Please route to the individual responsible for trailer maintenance Part No 42101401...

Page 2: ......

Page 3: ...ed Trailer Maintenance 23 Maintaining Insulation Efficiency 24 Safety Measures Urethane Foam 24 Converter Dolly 25 Alterations to the Trailer 26 PLATFORMS CONTENTS Reporting Safety Defects 2 Reporting...

Page 4: ...mmediately inform NHTSA in addition to notifying Great Dane Limited Partnership If NHTSA receives similar complaints it may open an investigation and if it finds that a safety defect exists in a group...

Page 5: ...ce Manual Contact the Truck Trailer Manufacturers Association 1020 Princess Street Alexandria Virginia 22314 Telephone 703 549 3010 SAFETY PRECAUTIONS Before performing any maintenance or repair work...

Page 6: ...r specs leaf spring main leaves remain in proper contact with wear pads with no twists Spring wear pad contact will then be even too Also at the first TPM a trailer mechanic should take the time to ve...

Page 7: ...tures can mean frozen and sluggish or inoperative brakes sagging light and brake lines broken connections increased corrosion and can require the installation of winter equipment Enclosed air systems...

Page 8: ...0 SOCKET 6 CAUTION CONNECTOR WIRING CHANGE NOTICE TO ALL TRACTOR TRAILER OWNERS AND USERS Federal Motor Vehicle Safety Standard No 121 Air Brake Systems was amended by the National Highway Traffic Saf...

Page 9: ...ts and replace them with original equipment parts or equal as required 1 Spiders for looseness or sheared fasteners 2 Anchor pins for wear or misalignment 3 Brake shoes for wear at anchor pin holes 4...

Page 10: ...tanks and allow the pressure to drop gradually In a system employing spring brake control valves the spring brakes should function and apply the brakes In a system that does not employ spring brake co...

Page 11: ...ely 50 worn shims or a combination of shims should be installed under each of the cam wear plates to permit the cam to be returned to the full release position Shims are available in 1 64 1 32 and 1 1...

Page 12: ...n lead to greatly reduced trailer brake lining life trailer brake drum heat checking heat cracking and breakage The air pressure imbalance typically ranges from 4 to 6 psi between the tractor and trai...

Page 13: ...st bearing or thrust washer as you rotate wheel Be sure there is sufficient clearance between brake shoe and drum so brake shoe drag will not interfere with bearing adjustment 7 Tighten adjusting nut...

Page 14: ...if yearly mileage is less At rebuild time before you install wheel bearings onto spindle coat bearing journals to deter fretting corrosion with a film of Lithium 12 Hydroxy stearate grease or its equ...

Page 15: ...the load being carried You must build up to and maintain your trailer s air pressure at more than 70 psi for van trailers and 80 psi for platform tailers before operating the trailer The air protectio...

Page 16: ...lt heads will not produce the desired clamping force RUNNING GEAR ASSEMBLY Inspection of upper running gear rail weld attachment to the trailer for weld fatigue cracks is a requirement of the annual F...

Page 17: ...alled and as soon as the rim wheel becomes airtight when the tire bead slips onto the bead seat The tire must always be inflated within a restraining device safety cage The tire must not be inflated t...

Page 18: ...attachment weld Caused by overload and over inflation Note Wheels with well welded discs may not be approved for use with radial tires Leak at butt weld caused by cracked or damaged weld Leak at valve...

Page 19: ...it molded into the tire and the rim or wheel rating Always use valve stem caps to keep a tight air seal and keep out dirt and moisture Even with proper inflation radial tires tend to show a sidewall b...

Page 20: ...e extreme caution to prevent branding too deeply The ideal branding depth is 1 32 and in no case should it exceed 1 16 If no branding panel is on the tire brand the sidewall midway between the rim fla...

Page 21: ...pect the axle alignment measure the distance from the kingpin to the trailer axle on each side and from axle to axle for tandem axles as specified below But first fabricate a rigid S hook that can be...

Page 22: ...an alignment machine made for the purpose It is often advisable to consult a qualified specialist with the equipment both to measure and to correct errors of camber NOTE Most trailer axles have no ca...

Page 23: ...ng as originally designed and manufactured by Great Dane Great Dane cannot be responsible for a guard that has been damaged or for one that is not repaired in accordance with Great Dane s design and m...

Page 24: ...amage or warpage to panels frame or hinges Compression seals should be checked to see if the seals need to be repaired or replaced to ensure a tight closure The seals around vent doors should be check...

Page 25: ...to bottom side rails should be checked for loose or missing rivets and the general condition of connections Great Dane should be contacted for fastener replace ment information If this information is...

Page 26: ...p b Waterproof all openings immediately by patching and sealing or both especially after accidents in which body and roof skin may have been cut Synthetic rubber base type sealer should be used for cl...

Page 27: ...d not only to carry loads into the main beams but are also used to maintain the main beams in a vertical direction Any area where cross members have been removed for any reason may cause twisting of t...

Page 28: ...uted that are of equal or greater capacity than those used at the time of manufacture then the GAWR need not be altered If components are substituted that have less capacity than those used at the tim...

Page 29: ...y to any trailer which shall have been repaired or altered without prior written approval of GREAT DANE LIMITED PARTNERSHIP in any way so as in the judgment of GREAT DANE LIMITED PARTNERSHIP to advers...

Page 30: ...s Components Heavy Vehicle Technology Center Dana Corporation Division Office 6938 Elm Valley Drive Kalamazoo MI 49009 www dana com trailers Form No 5011 Model TR Service Manual Indian Head Industries...

Page 31: ......

Page 32: ...PO BOX 67 LATHROP AVENUE SAVANNAH GA 31402 0509DMD 2 00 USD...

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