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
