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

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6 Maintenance
6.1 Shaft and Bearing Replacement
If shaft or bearing replacement is necessary, follow these instructions. (Shut down the pump and discon-
nect power supply to the pump before working on pump.)
1. Install the front (impeller end) bearing (36) on the shaft (38).
2. Slide the carrier retaining ring (106) onto the shaft (38).
3. Install the rear (coupling end) bearing (117) on the shaft (38).
4. Install the retaining ring (108) onto the shaft (38). Add shims (107) between the retaining ring (108)
and the bearing (117) if required to lock the bearing (117) on to the shaft axially.
5. Install "0" ring (109) into the bearing carrier groove.
6. Slide the bearing carrier (110) with "0" ring over the rear bearing such that rear bearing slides into
the bearing carrier (110). Install the retaining ring (106) in place.
7. Insert shaft assembly with bearings and carrier into the housing (31).
6.2 Cleaning or Replacing Check Valve
(Shut down the pump and disconnect power supply to the pump before working on the pump.)
1. Drain pump casing (1) completely by removing drain plugs (2). Access to suction check valve can
be made by removing the check valve cover plate (76) from the top of the suction chamber of pump
casing.
2. Reaching through the check valve cover plate hole, remove the two shoulder screws (118) and
check valve keeper plate (53). Now slide off check valve (51). Pull the check valve assembly out of
the pump casing through the cover plate hole. Inspect the sealing surface of the check valve and
make sure it is in good condition and free of debris.
6.3 Cleaning Impeller
1. Drain pump casing completely by removing drain plugs (2).
2. Remove handknobs (81), remove clean-out cover (83) and using coat hanger remove debris from
the impeller eye area and if necessary wash it off with garden hose.
3. Check 11011 ring (84) on the clean-out cover-replace it if necessary.
6.4 Hydrotest
NOTICE:
If hydrostatic test is required in the field, it must be performed with suction check valve re-
moved or with partially open suction check valve.
1. The maximum allowable hydrotest pressure for these pumps is:
Option Description
3DTH EL & EM 130 psi
4DTH EL & EM 130 psi
6ETH EL & EM 130 psi
8GTH EL & EM 85 psi
10GTH EL & EM 85 psi
6 Maintenance
Model Trash Hog II Installation, Operation, and Maintenance Manual 37