TM 10-4630-206-12&P
UNIT MAINTENANCE
SEWAGE EJECTION PUMP, LAUNDRY
NSN 4630-01-413-2606
SEWAGE EJECTION PUMP, GENERAL PURPOSE
NSN 4630-01-413-2608
SEWAGE EJECTION PUMP, WASTE WATER EVACUATION
NSN 4630-01-505-3746
HEATER ELEMENT
TEST, REPLACE
INITIAL SETUP
Tools
Personnel Required
Multi-meter (Item 1, WP 0025 00)
Electrician
Tool Kit General Mechanics Automotive (Item 3, WP 0025 00)
Materials/Parts
Equipment Condition
Heater Element (Item 1/2, WP 0029 00)
All circuit breakers OFF
Power disconnected
TEST
Test Heater Element
WARNING
The site power must be disconnected before proceeding further.
Touching a live wire can cause serious injury or death to personnel.
WARNING
Ensure that the SEP has been thoroughly cleaned with chlorine
solution and rinsed prior to any inspection or service to the interior.
Failure to do so may result in serious illness or death to personnel.
NOTE
To ensure the correct component is being tested, the lid or access
panel must be removed and the wire from the heater traced to the
back of the circuit breaker box. To confirm the wire is correct, have
an assistant lightly tug on the wire from the inside of the SEP.
1. Locate, disconnect, and tag heater wires (1) from heater circuit breaker or terminal board (2).
2. Identify the ground wire and the two heater leads. The ground wire will be green, and will connect to
the breaker box/control box.
3. Using a multimeter (3) set to read resistance (ohms Ω), check for continuity between the two heater
wires and the ground wire. There should be a reading of infinity Ω.
0017 00-1
