ARMY TM 9-6115-670-14&P
4-45
4.19. RADIATOR SUB-ASSEMBLY.
This task covers:
a. Inspect
b. Service
c. Test
d. Repair
e. Replace
INITIAL SETUP
Tools
General Mechanic's Tool Kit
(Item 1, Appendix B)
Radiator Tester
(Item 7, Appendix B)
Materials/Parts
Radiator
Equipment Condition
Engine stopped and allowed to cool completely.
MASTER ON-OFF switch on APU control unit set to
OFF.
Fan Shroud removed.
Sealing Compound
(Item 19, Appendix F)
Antifreeze
(Item 1, Appendix F)
INSPECT
Visually inspect radiator for leakage or signs of physical damage.
SERVICE
a. Loosen two clamps and remove wrap from exhaust pipe on muffler.
b. Remove radiator cap (para 3.7.).
c. Open drain valve (1, Figure 4-6) under radiator sub-assembly (2) and allow coolant to drain
completely.
WARNING
Hot coolant is under pressure. Do not remove radiator cap
when engine is hot. Allow engine to cool completely before
removing radiator cap. Once cooling has occurred, loosen
cap slightly to relieve any excess pressure before removing
the cap completely. Failure to observe this warning will
result in severe injury to personnel.
NOTE
Place a suitable container under radiator drain valve
and engine drain valve to catch waste coolant. Collect
coolant in an appropriate chemical resistant container
for disposition/disposal through the local servicing
Defense Reutilization and Marketing Office.
