Hale 80FC - Manual (Page 94)

❑ Corrective Maintenance
94 Pump Ends
p/n: 029-0020-61-0
❑ Replace all gaskets. Apply a small amount of grease to the gasket(s).
❑ If the clearance rings are removed, use a press to install them back into the
volute.
❑ When installing the volute and suction flange, DO NOT damage the clear-
ance rings or impeller.
❑ Reconnect all cooling lines, piping and tubing.
❑ Set up apparatus for pumping and test pump. Check for leaks at the piping
and seal areas before returning apparatus to operation.
Impeller
1. To expose the impeller, remove the:
❑ Suction Flange, if included - see heading “Suction Flange” on page 90.
❑ Volute - see heading “Volute (Pump Body)” on page 91.
For 30 FS series pump
(See View "A" of Figure 6a-4: “Typical Pump Disassembly Overview” on page
92.)
❑ Hold the impeller with a strap wrench, then remove the 3/4”-16 impeller
nut and washer.
❑ Continue with following Steps #2.
For all other pump models
(See Figure 6a-4: “Typical Pump Disassembly Overview” on page 92.)
❑ Remove the cotter pin in the lock nut.
❑ Hold the impeller with a strap wrench, then remove the impeller nut.
❑ Continue with following Steps #2.
2. To avoid damaging the impellers, use wedges (3) or a bearing puller to
remove the impellers from the pump shaft. (See Figure 6a-5: “Placing
Edges for Impeller Removal” on page 95.) Place the wedges or puller at the
impeller vane area where the metal is the heaviest.
Notes: Tap the pump shaft end, using a dead blow hammer, to free the impeller from
the pump shaft. Use care to avoid damage to the shaft threads.
3. Slide the impeller from the pump shaft, then remove the impeller shaft key.