TM 9-2320-303-10
2-34.
OPERATE IN EXTREME HEAT (Con't).
b.
Driving Vehicle.
(1)
Check water temperature gage and stop if temperature is unusually high.
Allow vehicle to cool down.
(2)
Check cooling system, air cleaner air cleaner restriction indicator, engine
oil level, and radiator fins frequently. Perform necessary services and notify Unit Maintenance
of any unusual gage readings or problems.
(3)
Notify Unit Maintenance to shorten differential oil change interval.
c.
Parking Vehicle.
(1)
Park vehicle under cover if possible. If shelter is not available, cover
vehicle with tarpaulins. If there aren't enough tarps to cover entire vehicle, arrange tarps
around engine compartment and over radiator to keep sand and dust out. Cover window
glass to protect against sand blasting.
(2)
Ensure all tires are inflated to proper pressure.
(3)
Check frequently for rust and fungus growth. Clean and lubricate vehicle
to help prevent deterioration.
2-35.
OPERATE IN MUD OR SOFT SURFACES.
NOTE
· M915A4 is equipped with No Spin® automatic locking positive
traction differential on the forward-rear axle. The No Spin®
differential eliminates individual wheel spinout for better traction.
· When locking system is engaged, driving axles receive equal torque.
a.
Before entering mud or other soft surfaces, check conditions and select
appropriate transmission gear range. Place interaxle lockout control valve lever in LOCK
position. Enter soft area at a medium speed for gear range selected.
b.
Maintain steady pressure on accelerator pedal to keep vehicle rolling until solid
ground is reached. Do not accelerate to point where wheels spin and do not stop, if possible.
c.
If vehicle gets stuck, try to pull out slowly in a low gear. Boards, brush, or similar
materials may be placed under tires to provide traction.
d.
When vehicle reaches hard surface, place interaxle lockout control valve lever in
UNLOCK position.
e.
Notify Unit Maintenance to clean and inspect propeller shafts for proper
lubrication.
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