ARMY TM 9-6115-604-12
NAVY NAVFAC P-8-633-12
Install hose (1) and secure with hose clamps (2).
Install hose assembly from radiator top tank In accordance with paragraph 4-57.
Install preheat hose assembly in accordance with paragraph 4-63.
Fill radiator with coolant In accordance with paragraph 3-12.
4-57. MAINTENANCE OF RADIATOR. The radiator is a heat exchanger where heat is removed from the coolant by air
passing across the radiator core.
a. Test. See Figure 3-17
Preliminary tests consist of checking for leaks, especially at hose connections. Coolant level may be checked
at sight glass assembly. If coolant level is low, refill radiator to approximately 2 inches (50 mm) below filler
neck level, In accordance with Table 3-1.
Do not exceed 15 psi (104 kPa) pressure or damage to the engine or radiator may
Using radiator tester, test the radiator by applying 15 psi (104 kPa) air pressure to radiator cap adapter.
Observe the radiator for leaks. Refer to the next higher level of maintenance for repair.
Remove #1 top roof panel, ladder assembly, #112 side panel, and front corner post in accordance with
Remove radiator shutter assembly In accordance with paragraph 4-14
Drain engine and radiator In accordance with paragraph 3-12.
Remove radiator filler cap (see Figure 3-17).
Remove coolant level switches in accordance with paragraph 4-25.
Remove right and left fan shrouds (1 and 2, Figure 3-17) by removing hexagon head capscrews (3),
lockwashers (5), and hexagonal nuts (4).
Remove top and bottom grill (6) and center grill (7) by removing hexagon head capscrews (3), lockwashers
(5), and hexagonal nuts (4).
Remove overflow hose (8) by removing hose clamps (9).
To remove hose assembly (10), remove associated hose clamps (11 ), marker band (12), reducer (13), and
pipe adapter (14). Remove hexagon head capscrew (15), hexagonal nut (16), and lockwasher (17) to
remove hose clamp (18).
To remove radiator drain hose (19), remove hose clamps (20), unscrew straight adapter (21), shut off cock
(22), pipe nipple (23), and elbow (24).
To remove hose assembly (25), remove hose clamps (26), unscrew pipe bushing (27), elbow (28), and
straight adapters (29).
Remove hose clamps (30), radiator outlet hoses (31), and water outlet tubes (32).
Remove hose clamps (11), radiator inlet hoses (33), and water inlet tube (34).
Injury to personnel may result it hoist and rigging with a capacity of less than 1200
pounds (540 kg) are used.