TB 9-6115-641-13
HEATER ASSEMBLY MAINTENANCE.
This task covers:
a. Inspect
d. Repair
b. Test
e. Replace
c. Remove
f. Install
INITIAL SETUP
Equipment Conditions
Tools
Tool Kit, General Mechanic's
Reference
(item 1, appendix B)
Generator shut down, TM 9-6115-641-10
Heater shut off, Paragraph 2-4.1.c
Materials/Parts
INSPECTION
Inspection is limited to visual inspection of components. Check for damaged and frayed wiring.
TEST
Refer to troubleshooting procedures, Figures 4-4, 4-7, 4-9, 4-10, 4-11, 4-14, 4-15, and 4-18.
REMOVAL
WARNING
Disconnect negative battery cable from right battery and the positive
battery cable from the left battery before doing the following
procedures. Failure to observe this warning could result in severe
personal injury or death.
WARNING
Before disconnecting any coolant lines, let generator cool from
operation, then relieve pressure by opening radiator cap carefully.
Coolant is hot and under pressure and may cause severe burns.
1.
Disconnect negative battery cable.
2.
Drain coolant system.
3.
Disconnect fuel line (1), Figure 4-21, from heater and drain any fuel from hose into a suitable container.
4.
Disconnect wiring harness connector A1, (Figure 4-34), from heater.
5.
Loosen screw clamps (3), Figure 4-21, and remove exhaust hose (13) from heater (2).
6. Position a suitable container under heater to catch coolant from hose, and loosen screw clamps (11) to
disconnect coolant inlet hose (12) and outlet hose (10) from heater (2).
7. Remove two screws (9), lock washers (8), flat washers (7), and heater (2), with mounting plate (5), from mounting
bracket (6). Loosen heater brace from top cover.
REPAIR
1. Repair of the Heater Assembly is limited to the replacement of the igniter/glow plug assembly, resistor, and the
coolant pump.
