ARMY TM 9-6115-670-14&P
4-156
4.61. TOGGLE SWITCHES.
This task covers:
a. Test
b. Replace
INITIAL SETUP
Tools
General Mechanic's Tool Kit
(Item 1, Appendix B)
Shop Equipment, Electrical Repair,
Semitrailer Mounted
(Item 3, Appendix B)
Equipment Conditions
APU control unit disconnected from shelter.
Materials/Parts
Toggle Switches
TEST
a. Tag and remove electrical leads from emergency shut-down switch (perform steps a through e of
REPLACE).
b. Place toggle switch (3) in ON position.
c. Refer to Figure FO-1 (SICPS/WIN-T) or F0-7 (JTACS) and use Multi-meter to test for continuity
across switch terminals. If there is no continuity, replace switch (3).
d. Push switch in OFF position.
e. Refer to Figure FO-1 (SICPS/WIN-T) or F0-7 (JTACS) and use Multi-meter to test for no continuity
across switch terminals. If there is continuity, replace switch (3).
REPLACE
a. Remove ten screws (caged nuts (SICPS), machine screws (JTACS and WIN-T)) (1, Figure 5-49)
securing APU control unit cover to chassis and remove.
b. At rear of switch (3), item (4), identify and tag terminal leads (5).
c. Carefully cut away insulation sleeving and expose soldered connections.
d. Unsolder and remove terminal leads (5) from switch terminals.
e. Remove nut (2) securing switch (3) to APU control unit cover and remove.
f. Place switch (3) through mounting hole in APU control unit cover and secure switch (3) to panel with
nut (2).
