Thrush HVGTB - Manual (Page 4)

CARTRIDGE REPLACEMENT
1. Shut off power to motor and disconnect wiring to motor.
2. Close shut off valves on suction and discharge of pump.
3. Loosen coupling on pump shaft.
4. Remove motor and cradle assembly from bracket. It is not necessary to remove motor from
cradle.
5. Remove eight screws holding bracket to body and remove bracket from pump body.
6. Remove impeller nut then remove impeller and key from shaft.
7. Remove seal assembly from shaft per seal replacement instruction.
8. Remove cartridge bolts that fasten bearing cartridge to bracket, remove cartridge, and
replace with new cartridge bearing assembly.
9. Re-install seal per instructions, install impeller, key and tighten impeller nut.
10. Replace gasket if necessary; bolt bracket to pump body, re-attach motor and cradle to
bracket.
11. Align and tighten coupling.