Thermolator TW Series UGH025-0504
6-32 TROUBLESHOOTING
Continued
Clean the gasket and flange faces, seal seat
cavity, shaft sleeve and motor shaft. Replace the shaft
sleeve if it is damaged or worn.
Replace the flinger.
Lubricate the seal seat cavity of the adapter and the
flinger with soapy water solution before pressing the
flinger squarely into the cavity. Do not chip or scratch the
lapped seat face.
Remount the adapter to the motor.
Make sure the motor shaft does not dislocate or chip the
seat of the seal.
Replace the remaining seal components.
Apply a soapy water solution to the motor shaft and the
rubber bellows of the rotating seal. Slide the rotating
member of the seal over the shaft sleeve. Replace the seal
spring and seal retainer, making sure the rotating seal
face stays in the holding collar during installation. Do not
chip or scratch the lapped seat faces.
Place the key in the key seat and slide the
impeller on the shaft. Replace the impeller retaining nut.
Remove any burrs caused by the screwdriver on the
impeller.
Pump motor
Flinger*
Pump adapter
Gasket, case*
Seal*
Impeller
O-ring, shaft*
Impeller
retainer*
*Indicates Parts Supplied
in Repair Kit
Shaft* sleeve
Seal
retainer*
Key*
Wear ring
4
5
6
7
8
To replace a failed seal, you must disassemble the pump.
Remove the impeller retaining assembly. Insert a
screwdriver in one of the impeller waterway passages to
hold the impeller steady while removing the retainer.
Remove the impeller being careful not to lose
any parts. If the impeller is difficult to remove, you may
need to use a bearing puller.
Remove the seal, adapter, shaft and flinger.
1
2
3
DISASSEMBLING
AND
ASSEMBLING
3 - 7.5 HP PUMPS
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