Goulds Pumps 3610 - IOM - Manual (Page 68)

Maintenance
CAUTION:
Cast lifting lugs in upper half are intended for upper half removal from the pump. They are not intended to
be used to lift the entire pump.
5. Position the slings around the impeller (101) on the locknuts (124 and 130).
6. Lift the rotor out of the pump.
7. Remove the throat bushing (125) and case wear ring (164) from each side of the impeller.
8. Remove the radial end impeller locknut (124).
You do not need to remove the thrust locknut (130) from the shaft unless you plan to
replace either the thrust locknut or the shaft.
Preassembly inspections
Replacement guidelines
Casing check and replacement
WARNING:
Avoid death or serious injury. Leaking fluid can cause fire and/or burns. Inspect and assure gasket sealing
surfaces are not damaged and repair or replace as necessary.
Inspect the casing and head for cracks and excessive wear or pitting. Thoroughly clean gasket
surfaces and alignment fits to remove rust and debris.
Repair or replace these parts if you notice any of these conditions:
• Localized wear or grooving that is greater than 1/8 in. (3.2 mm) deep
• Pitting that is greater than 1/8 in. (3.2 mm) deep
• Irregularities in the casing-gasket seat surface
• Wear ring clearances that exceed the values in the Minimum running clearances table
NOTICE:
When clearances between the rings become excessive (increase by 50%), hydraulic
performance decreases substantially.
66 Installation, Operation, and Maintenance Manual