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.
Be careful not to lose the key,
spring and seal retainer. If the impeller is difficult to
remove, you may need to use a bearing puller.
Remove the seal, adapter, shaft and flinger.
See
the exploded view for detail.
Clean the gasket and flange faces, seal seat cav-
ity, 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 bel-
lows 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.
Thermolator TW-1 and TW-2
UGH015/0100
6-24
T
ROUBLESHOOTING
1
2
3
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
D
ISASSEMBLING
AND
A
SSEMBLING
3 - 7.5
HP
P
UMPS
4
5
6
7
8
Continued on next page
Summary of Contents for Thermolater vacuTrac
Page 9: ...Figure 1...
Page 12: ......
Page 15: ......
Page 16: ......
Page 50: ......
Page 62: ......
Page 100: ......
Page 106: ......
Page 117: ...UGH015 0100 TW 1 230 460V WIRING DIAGRAM PD 5...
Page 119: ...UGH015 0100 TW 2 230 460V WIRING DIAGRAM PD 7 2...