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TM 10-3930-664-10
SECTION IV. Operation Under Unusual Conditions
2-17.
GENERAL
This section provides the operator with additional instructions for operating in various environments and emergency
situations.
2-18.
OPERATION IN EXTREME MOIST HEAT
At Parking or Halt.
(1)
If possible, park the 4KRTFL under shelter.
(2)
Dry the seat and wiring to prevent the formation of mildew.
(3)
Keep the fuel tank full at all times to prevent condensation from forming in the tank.
(4)
Contact organizational Maintenance to check all points of lubrication according to LO10-3930-664-12.
2-19.
OPERATION IN EXTREME DRY HEAT. (Refer to FM90-3, DESERT OPERATIONS)
a.
Preparation. Precautions must be taken to avoid overheating.
(1)
Contact Organizational Maintenance to drain, flush and refill cooling system.
(2)
Contact Organizational Maintenance to lubricate the 4KRTFL with correct grade of lubricants in accordance
with Lubrication Order, LO10-3930-664-12.
b.
Operation.
(1)
Check the water temperature and transmission oil temperature gauges at frequent intervals.
(2)
Check the air cleaner indicator frequently. Service the filter as often as required.
c.
At Halt or Parking. Park the 4KRTFL in shaded area, if possible. Cover seat, steering wheel, controls, and
gauges to protect them from direct heating by the sun.
2-20.
OPERATION IN EXTREME COLD
a.
Preparations. Extensive preparation of mechanical equipment is required when extreme cold weather is
anticipated. The following steps will help protect the vehicle against subfreezing temperatures.
(1)
Contact Organizational Maintenance to prepare the cooling system by draining and then refilling with
antifreeze appropriate for anticipated temperatures. Refer to Appendix D and FM 4-367.
(2)
Contact Organizational Maintenance to change the engine lubricating oil to the grade called for in LO10-
3930-664-12 for cold weather operation.
b.
Starting the Engine.
(1)
Try starting the engine using the procedure given in paragraph 2-10.
2-45
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