TM 9-2320-273-20
COOLING SYSTEM
4-42. COOLANT SYSTEM MAINTENANCE (Continued).
LOCATION/lTEM
ACTION
REMARKS
NOTE
Before opening each drain cock, place
container underneath to catch coolant.
A . D R A I N .
1. Radiator cap (2).
Remove.
2. Radiator draincock (4).
Open and let coolant drain out.
3. Thermostat petcock (7).
Open.
4. Oil cooler draincock (5).
a. Open.
b. Let coolant drain out.
c. Close.
5. Ether quick-start sending
unit (6).
a. Disconnect wire.
b. Remove ether quick-start
sending unit and clean threads.
c. Allow coolant to drain out.
d. Apply liquid teflon to threads
and install ether quick-start
sending unit.
LEGEND:
1.
SIGHT GLASS
2. RADIATOR CAP
3. RADIATOR FILL
NECK
4. RADIATOR
DRAINCOCK
5. OIL COOLER
DRAINCOCK
6.
ETHER QUICK-START
SENDING UNIT
7.
THERMOSTAT
PETCOCK
TA 074665
4-157