TM 9-2330-398-10
2-27.
OPERATION IN MUD AND SNOW.
a.
Immediately after operation in mud or snow, thoroughly clean, inspect, and lubricate if tactical situation permits
(refer to Appendix E).
b.
Refer to FM 21-305 for special instructions on driving hazards in snow.
c.
After each operation, remove ice and snow from underneath semi-trailer and from hoses, lines, tubes, and
electrical connections.
2-28.
OPERATION IN DUSTY OR SANDY AREAS.
a.
Clean, inspect, and lubricate semi-trailer frequently when operating in dusty or sandy areas (refer to Appendix E).
b.
Maintain proper tire pressure:
1.
Reduce tire pressure to 32 psi (221 kPa) for operation in soft sand.
2.
Reduce tire pressure to 45 psi (310.3 kPa) for operation on cross-country terrain. Tire pressure must be returned
to 65 psi (448.2 kPa) when operation resumes on hard-surface roads if tactical situation permits.
c.
When uncoupling semi-trailer in sandy areas, use ground boards to prevent landing gear from sinking.
2-29.
FORDING.
a.
The M969A2 semi-trailer is designed for fording hard bottom water crossings deep enough to submerge the
running gear.
b.
Refer to the towing vehicle operating instructions for information on fording. Towing vehicle instructions are also
applicable to the semi-trailer.
c.
Before entering water, spray engine assembly electrical connections with silicone compound (Item 2, Appendix D).
Notify Unit maintenance to pack wheel bearings after each submersion (refer to Appendix E).
d.
Reduce tire pressure to aid in amphibious landings.
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