TM 1-1740-221-13&P&P
FIELD MAINTENANCE
GUIDELINES FOR CLEANING TOW TRACTOR
INITIAL SETUP:
Personnel Required
Equipment Condition
91B, Light Wheel Vehicle Mechanic
Shut Down
WARNING
Shut off and tag out the machine before cleaning or otherwise servicing. Failure to do so could
result in unexpected startup and could result in injury or death.
GUIDELINES FOR CLEANING TOW TRACTOR
NOTE
The following are general instructions for cleaning tractor components within the capabilities of
the using organization. Common shop practices are not described. Use the exploded views in
parts manual, for reference.
Cleaning
When cleaning, keep related parts together so reassembly is easier. Special cleaning instructions are given
where required.
Using Compressed Air
Compressed air may be used for cooling, cleaning, and drying applications as long as: Air low is restricted to
less than 15 PSI, a safety nozzle is used and eye protection (safety glasses with shield or safety goggles) is also
used. Other less hazardous means, including vacuuming and wet sweeping, should be considered. By no means
shall compressed air be used to clean one s clothing. Use low-pressure compressed air to remove debris and
dirt as necessary.
Frame, Engine, and Transmission
NOTE
Be sure all openings are closed or covered adequately before cleaning to prevent the entry
of water into internal parts.
Structural parts are best cleaned using soap and water and suitable brushes. Steam cleaning may also be done
before disassembly to remove heavy accumulations of grease, oil, and dirt from exterior of engine, transmission,
and rear axle assembly.
Metal Parts
Metal parts shall be cleaned in an appropriate cleaning solvent. Allow to air dry. Do not use compressed air to
dry parts. The moisture generally present in air systems may cause corrosion. Lubricate metal parts as soon as
possible after cleaning.
Bearings
1. Wash bearings in a bearing washer or immerse in solvent and scrub clean with a soft brush. Remove all
grease and oil from bearing recesses. Allow to air dry.
2. Apply a thin ilm of lubricating oil to bearings and check for free movement between inner and outer race.
Worn bearings must be replaced.
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