TM 5-4320-300-14
Table 4-1 Organizational Preventive Maintenance Checks and Services - Continued
W -Weekly
Q- Quarterly
M -Monthly
S- Semiannually
Interval
Item
Item
To Be
No. W M Q S
Inspected
Procedures
NOTE
The cylinder block will drain faster if radiator
cap is left open.
b. Close the radiator and oil cooler draincocks.
CAUTION
Ensure that engine temperature does not exceed
1850F (850C).
c. Refill cooling system with clean water. Leave radiator
cap off.
d. Start engine and observe water level of radiator for
evidence
of thermostat opening.
CAUTION
Engine damage may occur if engine is allowed
to run without water in cooling system.
e. With engine running open the draincocks on the radiator
and oil cooler. Flush the cooling system with clean water.
Replace water being drained by adding an equivalent
amount to radiator.
f. Stop the engine and drain the cooling system completely.
4-29
