ITT Goulds Pumps Trash Hog II, Инструкция по установке, эксплуатации и обслуживанию

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6.5.3 Drain the pump
6.5.4 Disassembly
If you need to replace impeller, wear plate, shaft seal, front oil lip seal, bearing or check valve, follow
these steps:
1. Drain pump casing completely by removing drain plug (2) from both suction and discharge chamber.
2. Drain seal cavity oil by removing drain plug (27) from bearing housing.
NOTICE:
A mixture of oil and water does not necessarily indicate a seal failure. Inspect seal for damage
and replace if needed.
3. Drain bearing cavity oil by removing drain plug (28).
NOTICE:
If oil is mixed with water, shaft seal and front oil lip seal must be inspected for failure.
4. Remove bearing housing support (35) capscrews from base.
5. Disconnect coupling or 11V11 Belt.
6. Remove capscrews (102) which holds seal plate (10) to casing (1).
7. Pull complete assembly including bearing housing assembly, seal plate and impeller (91) from
pump casing.
8. Remove impeller nut (4) & impeller washer (5) from the shaft (38). Pry out the impeller (91) using
wedges behind the impeller.
NOTICE:
Check impeller for any broken vanes or wear. If it is necessary, replace it.
Refer to impeller-nut torque value before reinstalling impeller nut.
9. Remove wear plate (89) by removing locknut (116) through the clean-out cover (83) hole. Check
wear plate for wear. Replace if required.
10. Remove seal assy. (17) from seal well as follows:
a) Remove spring and rotating element of the seal.
b) Pry out the stationary element gently from the seal cavity by using screw driver. OR if seal plate
is removed from the shaft, the stationary seal will slide out off the shaft along with seal plate.
Be careful not to damage stationary element by letting it hit the shaft.
NOTICE:
Please refer to seal re-assembly section before reinstalling the seal. If the seal appears dam-
aged in any way, replace with new seal assembly.
11. Remove capscrews (33) to disassemble bearing housing from seal plate.
NOTICE:
Check gasket (105}--if worn, replace it.
12. Remove the shaft assembly with bearings and bearing carrier out of the bearing housing (31).
13. Check both lip seals (42), replace if necessary.
14. Remove the snap ring (106) from the bearing carrier (110) which will allow the bearing carrier (110)
to slide off the shaft (38), along with 11011 ring (109).
15. Remove snap ring (108) from the shaft (38).
6.5 Disassembly
Model Trash Hog II Installation, Operation, and Maintenance Manual 39