Figure 3
Service 9
REMOVAL OF OLD SEAL
Refer to Figure 3 for Mechanical Seal parts indentificaiton.
Step 1. Disconnect all power to pump.
Step 2. Close isolation valves to cut pump off from system.
Step 3. Drain pump; be sure to vent pump.
Step 4. Remove motor hold down bolts and bolts holding adapter/seal plate
(Key No. 6, Page 11) to pump body (Key No. 20). Slide motor,
adapter/ seal plate and impeller (Key No. 12) backward to clear
pump body.
Step 5. Remove impeller screw and washer from end of shaft and slide
impeller off of shaft.
Step 6. Unbolt adapter/seal plate from motor.
Step 7. Use two screwdrivers (Figure 4) or bearing puller to carefully sepa-
rate motor from adapter/seal plate, bringing rotating half of seal
(Key No. 10) off with adapter/seal plate. Shaft sleeve (Key No. 2A)
may come off with seal.
Step 8. Use hammer, if necessary, to drive shaft sleeve out of seal. Clean up
shaft sleeve with emery paper if necessary.
Step 9. Place adapter/seal plate face down on bench and drive old station-
ary half of seal out of adapter/seal plate by carefully taping with
screwdriver and hammer (Figure 5).
Step 10. Use a wire brush to thoroughly clean adapter/seal plate cavity. Be
sure all dust and grime are out of seal cavity before installing new
seal.
place jackscrew here.
with adapter/sealplate.
To Next Page
Loading...
