TM 10-3510-226-23
0034 00
Test the Drainage Tank Pump Float Switch and Motor
WARNING
This equipment operates at high voltage. Use extreme caution, observe all warnings, and
follow all safety procedures. Failure to observe safety precautions may result in injury or
death to personnel.
WARNING
Ensure graywater pipes have been sanitized IAW procedures contained in TB MED 577
before attempting any repairs. Always use provided safety equipment, including hand
and eye protection, when performing maintenance on graywater handling components.
Failure to observe safety precautions may result in serious illness or death from
biohazards.
1. Place CBL out of service and disconnect power.
2. Remove manual lift knob (Figure 2, Item 1) (Waste Tank only).
3. Remove top (Figure 2, Item 2) of drainage tank.
4. Clean and disinfect tank IAW TB MED 577.
5. Unplug pump power cord plug (Figure 2, Item 5) from receptacle.
6. Ensure the float (Figure 2, Item 4) is in its lowest position, and use an ohmmeter to check for infinite
resistance between the two flat prongs on the plug (Figure 2, Item 5).
7. Manually raise the float (Figure 2, Item 4) is in its highest position, and use an ohmmeter to check for
zero resistance between the two flat prongs on the plug (Figure 2, Item 5).
8. Use an ohmmeter to check for infinite resistance between each flat prong on the plug (Figure 2, Item
5) and ground.
9. Replace a pump (Figure 2, Item 6) assembly which fails any test.
10. Install top (Figure 2, Item 2) of drainage tank.
11. Install manual lift knob (Figure 2, Item 1) (Waste Tank only).
12. Connect power and monitor for normal operation.
0034 00-3
