TM 9-2320-363-10
2-39.
OPERATE IN EXTREME COLD (Con’t).
d.
Operate Winch.
Avoid winching operations that cause sudden shock
loads. In extremely cold temperatures, metals become
brittle and sudden shock loads can cause equipment
damage.
(1)
Before operating winch, warm up hydraulic system by turning
PTO switch ON and operating engine at approximately 1000 rpm for ten minutes.
(2)
When hydraulic system is warmed up, operate winch in no-
load condition by paying out approximately 25 ft (7.6 m) of cable at low speed.
(3)
Take up cable at low speed.
(4)
Winch should be ready for normal operation.
2-40.
OPERATE IN EXTREME HEAT.
a.
General. During very hot weather, driving procedures may require
altering to prevent vehicle overheating. Avoid continuous high speeds, long, hard
pulls, and continuous operation in soft terrain.
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 indi-
cator, 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 avail-
able, 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 lubri-
cate vehicle to help prevent deterioration.
2-131
