SPX S2045 - Disassembly of Modular Base Mounted Pumps

Waukesha Cherry-Burrell Maintenance
12/2010 95-03080 Page 41
Disassembly of Modular
Base Mounted Pumps
Refer to see “Pump Disassembly with Type 1 Seal” on page 30
and “Pump Disassembly with Type 4 Double Seal” on page 35 for
information on disassembling the pump seal items.
1. Shut off product flow to pump and relieve any product pres-
sure.
2. Shut off and lock out power to the pump.
3. Disconnect the suction and discharge pipe fittings.
4. Remove the casing clamp and casing (Figure 47, item C).
Slide the o-ring off the backplate.
5. Remove the impeller retainer nut and shaft o-ring (Figure 47,
item B).
6. Pull the impeller/backplate assembly off the bearing housing
shaf
t (See Figure 47, items D and A).
7. Remove the coupling cover cap screws. (Figure 48, item B).
8. Loosen the set screws on the pump coupling. (Figure 48,
item A).
9. For
Style B: Remove the bolts from the adapter and stand.
Remove the housing and stand as a unit.

For Style C: Remo
ve the stand/housing assembly, than
remove end cap. (Figure 52, item C on page 42).
10. Push the shaft and bearing assembly out of the housing from
the impeller end. See Figure 49.
11. Remove the retaining ring and press the bearings off the
shaf
t (See Figure 49, items A and B).
Figure 47 - Removing the Impeller
Assembly
Figure 48 - Removing Coupling Covers
Figure 49 - Bearing Shaft Assembly
Removal