5-21. IMPELLER, SHAFT, SEALS, AND CHECK VALVE

IMPELLER, SHAFT, SEALS, AND CHECK VALVE (CONT)

TM-5-4320-300-14 Pump Centrifugal Self-Priming Gasoline Engine Driven; 6-Inch 1500 GPM Capacity At 60 Foot Head Manual
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TM 5-4320-300-14 5-21. IMPELLER, SHAFT, SEALS, AND CHECK VALVE This task covers: a. Removal b. Cleaning c. Inspection d. Assembly INITIAL SETUP: Tools Dry cleaning solvent (Item 16, Appendix E) Shop set, automotive repair, Grease (Item 7, Appendix E) field maintenance, basic Lubricating oil (Item 10, Appendix E) NSN 4910-00-754-0705 Troubleshooting References Tool kit, master mechanics Malfunction 6 NSN 5180-00-699-5273 Malfunction 7 Materials/Parts Equipment Grease seal (2) Condition Para Equipment Condition Companion flange gasket 5-20 Pump and bearing housing removed Volute gasket from trailer assembly. Shaft seal Special Environmental Conditions Bearing cap preformed packing Well-ventilated area required during cleaning. Location/Item Action Remarks REMOVAL 1. Bearing Remove from pump body by removing mounting housing nuts and lockwashers. Remove and discard grease seal. NOTE Seal plate, impeller, volute, wear plate, shaft, shaft seal, and mounting hardware will stay with bearing housing as it is removed. 2. Suction port Remove nuts, flange, and gasket. Discard gasket. companion flange 3. Valve seat Remove. and check valve assembly 4. Volute and Remove bolts securing volute and wear plate to wear plate seal plate. Remove volute gasket and discard. Remove wear plate from volute by removing countersunk screws. 5-82

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