TB 9-6115-643-13
This task covers:
a. Inspect
d. Replace
b. Test
e. Install
c. Remove
INITIAL SETUP
Tools
Equipment Conditions
Tool Kit, General Mechanic's
Reference
(item 1, appendix B)
Generator shut down, TM 9-6115-643-10, Paragraph 2-9.2
Materials/Parts
Heater shut off, Paragraph 2-4.1c
INSPECTION OF HEATER SWITCH
Inspection is limited to visual inspection of components. Check for damaged and frayed wiring.
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.
TEST OF HEATER SWITCH
1. Disconnect electrical lead from electrical switch terminal (2), Figure 4-24, and use multimeter to measure for
continuity across switch terminals with switch in ON position. With switch in OFF position, there should be an open circuit.
2.
If readings are not as above, replace switch.
REMOVAL OF HEATER SWITCH
1.
Disconnect negative battery cable.
2.
Release control panel by turning two fasteners and carefully lowering control panel.
3.
At generator control panel (1), tag and disconnect all electrical leads to switch (2).
4.
Remove knurled nut (5), and mounting nut (6) from control panel (1).
5.
Tag and disconnect electrical leads from indicator light (3).
6.
Remove indicator light (3) and push-on nut (7), along with heater switch plate (4).
REPLACEMENT OF HEATER SWITCH
1.
Perform steps 1 thru 6 of removal.
2.
Perform steps 1 thru 5 of installation, substituting new heater switch lable for the defective one.
INSTALLATION OF HEATER SWITCH
1.
Install heater switch lable (4) and indicator light (3) with new push-on nut (7). Discard rectangular clip that comes
with indicator lights.
