TM 9-2320-273-20
COOLING SYSTEM
NOTE
Fill with Artic Anti Freeze if sub-zero
Add coolant until thermo-
stat petcock (7) overflows.
Close.
Continue adding coolant
until sight glass (1) is
filled.
4-42. COOLANT SYSTEM MAINTENANCE (Continued).
LOCATION/lTEM
ACTION
REMARKS
B. INSPECTION/INSTALLATION OF DRAINCOCKS.
6. Radiator draincock
(4), oil cooler drain-
a. Remove as required.
b. Inspect for damage.
cock (5) and thermo-
C. Coat threads with
stat petcock (7).
liquid teflon.
d. Screw into place and
close.
C. REPLENISHING COOLANT.
7. Radiator fill neck
(3).
8. Thermostat petcock
(7).
9. Radiator fill neck
(3).
D. CHECKING FOR LEAKS.
10. Engine.
Start up (see TM 9-2320-273-10).
11. Coolant system.
a. Check for leaks.
b. Make sure coolant level
Add more if needed.
is to the top of sight
glass (1).
12. Radiator cap, (2).
Install.
4-158
