TM 10-3510-226-23
0037 00
REPLACE-CONTINUED
Replace the Pump Motor
WARNING
Ensure that all electrical power is shut off and disconnected before proceeding. The
circuit breaker box or individual circuit breaker should be locked and tagged out by
personnel following this procedure. Remember that the CBL is a wet environment.
Serious injury or death to personnel can result from electrocution if proper safety
precautions are not observed.
1. Disconnect power by switching circuit breaker No. 15, 17, and 19 to OFF, and drain pump.
2. Remove screws retaining pump end cover (Figure 4, Item 1), and remove pump end cover.
3. Tag and disconnect motor leads.
4. Remove locknut retaining conduit (Figure 4, Item 13) to motor (Figure 4, Item 4), and remove
conduit.
5. Remove bolts, washers, and nuts retaining pump motor (Figure 4, Item 4) to pump mount (Figure 4,
Item 5).
6. Remove bolts retaining pump adapter (Figure 4, Item 6) to casing (Figure 4, Item 7), and pull pump
rearward to expose impellor (Figure 4, Item 8).
7. Remove the dust cap (Figure 4, Item 9) from the motor.
NOTE
Depending on the individual pump, the pump shaft may be secured in place by either
sticking a large flat blade screwdriver in a slot in the shaft at the motor end, or by placing
an open-end wrench on flats formed onto the shaft. Inspect you pump carefully to
determine which method may apply.
8. Secure the pump shaft (Figure 4, Item 10), and remove the acorn nut retaining the impellor (Figure
4, Item 8).
9. Remove the impellor (Figure 4, Item 8) from the pump shaft (Figure 4, Item 10).
10. Remove the spring and shaft seal (Figure 4, Item 11) from the pump shaft (Figure 4, Item 10).
11. Remove the pump motor (Figure 4, Item 4) from the pump adapter (Figure 4, Item 6).
12. Install the replacement pump motor (Figure 4, Item 4) into the pump adapter (Figure 4, Item 6).
13. Install the shaft seal (Figure 4, Item 11) and spring onto the pump shaft.
14. Install the impellor (Figure 4, Item 8), and retain with acorn nut.
0037 00-7
