Preventive Maintenance Checks and Services (PMCS) - Continued.
ITEM TO BE
i. Install drain plug and remove fill/check plug on
top rear of differential. Fill with oil and install fill/check
plug (TM 5-3810-305-10).
Figure 15. Differential Oil Filter.
Cooling system is pressurized. Use extreme
caution and proper protection when removing
radiator cap after operating temperature is
reached. Steam and hot gases will be escap-
ing through the radiator cap; avoid being
burned by these escaping gases. When re-
moving cap, loosen it slowly to the left, then
pause a moment. Continue to turn cap until it
can be removed. Failure to follow this warn-
ing may cause death or injury to personnel.
a. Remove radiator cap and drain cooling system
by opening drain valve on bottom tank of radiator and
removing plug in side of engine coolant inlet. Drain
radiator into a suitable container. Radiator holds 28 qt
b. Check for damaged coolant hoses and loose or
damaged hose clamps. Replace as required.
c. To clean system, flush with clean water. If system
shows mineral build-up, scale, rust, or oil, use a heavy-