TM 9-2320-273-20
Item
No.
16
Table 3-1. Unit Level Preventive Maintenance Checks and Services M915-M920
Interval
Semi-
Annual
Item To Be
Inspected
Cooling
System
Procedure
WARNING
If vehicle has been operating, use ex-
treme care to avoid being burned when
removing cooling system radiator cap.
Use heavy rags or gloves to protect
hands. Turn radiator cap only one-half
turn counterclockwise and allow pres-
sure to be relieved before fully removing
cap.
NOTE
Coolant level is correct when sight glass
is full (TM 9-2320-273-10).
Use MIL-A-46153 in temperatures above
0°F (18° C) and MlL-A-11755 in tempera-
tures below 0° F (-18° C).
a. Check coolant condition. Test coolant
to see if draining is necessary (TB
750-651).
b. Check all hoses for looseness, splits,
wear, and cracks that would cause leaks.
c. Inspect hose clamps for wear and
serviceability.
Not Mission
Capable If:
a. Coolant
condi-
tion/testing
shows
draining is required.
b. Class Ill leakage
evident. Hoses are
loose or have splits
or cracks.
c. Hose clamps are
worn or unservice-
able.
Change 4 3-10.5
