TM 10-4510-209-13&P
0044 00
Test Sump Pump Switch
WARNING
Always secure and tag circuit breakers in the OFF position or disconnect equipment's
power cord from receptacle before attempting any electrical repairs, even minor repairs
(or tests) such as replacing a light bulb. Remember that the latrine is a wet environment
capable of posing an electrical shock hazard when personnel have direct contact with
energized wires or metal parts. Failure to observe this safety warning may result in
serious injury or death to personnel.
1. Remove the four switch cover screws (1).
2. Remove the switch cover (2) and gasket (3).
3. Remove screws retaining the switch (4), and remove the switch.
4. Disconnect and tag the wiring at the switch (4).
NOTE
Do not attempt to test continuity with the switch in place. Electrical components still in
line with the switch may give a false reading.
5. Place the switch (4) in the ON position.
6. Use a multimeter set to read resistance (ohms Ω) to test for continuity across the two poles (5) of the
switch (4).
7. If there is no continuity, replace the switch (4).
8. Place the switch (4) in the OFF position.
9. Use a multimeter set to read resistance (ohms Ω) to test for continuity across the two poles (5) of the
switch (4).
10. If there is continuity, replace the switch (4).
11. Connect wiring to the switch (4) as tagged.
12. Install switch (4) and retain with two screws.
13. Install the switch cover (2) and gasket (3), and retain with four screws (1).
0044 00-6
