|
| |
TM 5-4210-220-12
4-19. WINTERIZATION SYSTEM.
4-19 1 .4 Pump Body Heater - Continued
This task covers
a
Removal
b
Inspection
c.
Installation
REPAIR
NOTE
To repair pump body heater, the heater must be removed from the pump body as detailed in
REMOVAL preceding.
a.
Fan Wheel Repair.
(1)
If fan wheel rubs, attempt to straighten housing or ring assembly to prevent rubbing.
(2)
If fan wheel is bent and requires replacing, remove three screws (2) attaching ring assembly (1) to fan
wheel housing (4).
(3)
Remove setscrew attaching fan wheel to motor shaft.
(4)
Remove fan wheel from housing.
(5)
Place new fan wheel in housing and slip over motor shaft.
(6)
Tighten setscrew on fan wheel hub, and spin fan to ensure it does
not rub.
(7)
Align ring assembly (1) on fan wheel housing and attach with
screws (2).
(8)
Spin fan wheel to check it does not rub. Re-align as required.
(9)
Replace heater in pump body as detailed in INSTALLATION preceding.
b.
Fan Motor Repair.
NOTE
Motor cannot be repaired, replace as required.
(1)
Remove fan wheel as detailed in a preceding.
(2)
Insert 3/8 In socket in fan wheel housing and remove nuts (3). Pull fan motor out of housing.
(3)
The motor cannot be repaired. Replace motor.
(4)
Insert motor holding bolts through housing and tighten nuts (3).
(5)
Replace fan wheel as detailed above.
4-298
|
