TM 10-4520-259-13&P
5-9. BLOWER AND FUEL PUMP MOTOR
This task covers:
a.
Remove
c.
Repair
b.
Inspect
d.
Install
INITIAL SETUP:
Tools:
Tool Set, General (Item 1, Appendix B)
Materials/Parts:
Rags, Wiping (Item 15, Appendix F)
Lubricating Oil, OE30 (Item 10, Appendix F)
Solvent, P-D-680 (Item 14, Appendix F)
Lock Washers
Equipment Condition:
Water heater shut off and cooled down.
Power switch off and power cable disconnected.
REMOVE
Remove faulty blower and fuel pump motor as follows:
a. Remove blower assembly from water heater as described in paragraph 5-8 a. through k.
b. Remove four capscrews (1), and four lockwashers (2).
c. Loosen setscrew (3) on coupling half (4) from shaft (5).
d. Slide motor (6) out of housing (7). Rubber insert (8) may come out with coupling half (4) attached to shaft (5),
stay with coupling half (4) attached to pump or it may fall out.
e. Carefully pry blower wheel (9) from shaft (5). Lift key (10) from blower shaft.
f. Remove four machine screws (11) securing mounting plate (12) to motor (6) and remove plate.
INSPECT
Inspect for burrs, nicks, burned or broken wires.
5-11
