TB 9-6115-645-13
PLATE, OPERATION AND HEATER SWITCH MAINTENANCE
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)
Materials/Parts
None
Generator shut down, TM 9-6115-645-10, Paragraph 2-9.2
Heater shut off, TB 9-6115-645-13, Paragraph 2-4.1.c
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 lead from terminal of switch (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), 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 label (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 plate for the defective one.
