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TM 9-2330-326-14&P
1-4
OPERATING UNDER UNUSUAL CONDITIONS (Cont.)
c.
Brake shoes may freeze to the brake drums and need to be heated to prevent damage to
mating surfaces.
d.
Refer to FM 9-207 and FM 21-305 for special instructions on driving hazards in snow and ice
that may be encountered during extreme cold weather conditions.
Shutdown:
a.
For short periods, park in a sheltered spot out of the wind; for longer shutdown periods, if high,
dry ground is not available, prepare a footing of planks or brush.
b.
Remove all buildup of ice and snow as soon as possible after shutdown.
c.
Cover and shield the semitrailer with canvas covers if available. Keep the ends of covers off the
ground to keep them from freezing to the ground. Drain air/moisture from air tanks.
2. Extreme Heat.
a.
Refer to TB 43-0239 and FM 90-3 for maintenance and operations, respectively, under desert
conditions.
b.
Do not park the semitrailer in the sun for long periods of time. Heat and sunlight shorten the
life of tires.
c.
Park the semitrailer where it will get maximum protection from heat, sun, and dust.
3. Rainy or Humid Conditions.
Frequently inspect, clean, and lubricate inactive equipment to prevent rust and fungus
accumulation.
4. Operation in Salt Water Areas.
Salt water will cause rapid corrosion of metal parts. After operation, wash the semitrailer with
fresh water. Clean, inspect, and lubricate equipment frequently.
5. Operation in Snow.
Refer to FM 21-305 for special instructions on operation in snow.
6.
Operation in Mud or Sand.
CAUTION
Do not tow, pull, push, or lift semitrailer using rear bumper. This
may damage equipment.
a.
If wheels sink into mud, you may need to jack up the mired wheels and put planking or
matting under them.
b.
After operation in mud or sand clean, inspect and lubricate the semitrailer.
7.
Operation on Rocky Terrain.
a.
Before driving over stumps or rocks, make sure the semitrailer can clear them. Such
objects can damage parts on the underside of the semitrailer. Beware of low hanging tree
limbs that can damage cargo.
b.
Be sure you have a serviceable spare tire because there is a greater chance of tire
puncture.



 


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