6.6.2 Bearing-frame inspection
Checklist
Check the bearing frame for these conditions:
•
Visually inspect the bearing frame and frame foot for cracks.
•
Check the inside surfaces of the frame for rust, scale, or debris. Remove all loose and foreign ma-
terial.
•
Make sure that all lubrication passages are clear.
•
Inspect the inboard-bearing bores.
6.7 Reassembly
6.7.1 Reassembly
Follow "Disassembly" in reverse order.
6.8 Impeller Nut Installation Torque
Use following impeller nut (4) torque value during installation:
Pump Model
Nut Size
Torque Value
3DTH
1"-14 Esna Nut (Short)
125-150 ft. lbs
4DTH
1"-14 Esna Nut (Short)
125-150 ft. lbs
6ETH26
1"-14 Esna Nut (Short)
125-150 ft. lbs
8GTH8
1"-14 Esna Nut (Short)
125-150 ft. lbs
10GTH9
1"-14 Esna Nut (Short)
125-150 ft. lbs
6ETH28
11/4"-12 Esna Nut
150-175 ft. lbs
8GTH14
11/4"-12 Esna Nut
150-175 ft. lbs
NOTICE:
Before installing impeller (91) onto the shaft (38), apply coat of loctite grade 242 into the impel-
ler bore to help prevent corrosion.
6.9 Winter Storage
1.
Wash off exterior of pump.
2.
Flush suction line, discharge line, pump casing, and impeller of all solids by pumping clear liquid for
a short time.
3.
Drain pump casing, suction line & discharge line.
4.
If complete draining is impossible, add small amount of antifreeze into the pump casing. Rotate
shaft for mixing.
5.
Drain the old oil from bearing housing cavity and seal cavity and refill both cavities with proper
grade of oil. (Refer to lubrication section).
6.
Seal off suction and discharge ports.
7.
Store the units in clean & dry area if possible.
8.
Motor windings should be protected from excessive moisture. Follow motor manufacturer's instruc-
tions.
9.
Spray interior of pump casing with commercially available anti-rust and anti-corrosion petroleum
aerosol.
6.7 Reassembly
Model Trash Hog II Installation, Operation, and Maintenance Manual
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