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TM 55-2915-335-30&P
2-21. PUMP COVER AND INLET SEAL - lNSPECT/REPAIR/REPLACE
2-21
This task covers: Replacement of pump cover and repair of inlet seal.
INITIAL SETUP
Tools:
Aircraft Electrician’s Tool Kit, NSN 5180-00-323-4915
Cartridge Pulling Tool, Item 4, Appendix D
Caliper Set, Micrometer, Outside, 0 to 6 inch,
NSN 5210-00-554-7134, or equivalent
Equipment Condition:
Armature, field tube, and impeller removed from
housing PARA 2-18 (See NOTE below)
Materials/Parts:
Dry Cleaning Solvent, NSN 6850-00-274-5421
White Petrolatum, NSN 6505-00-133-8025
Cleaning Cloth, Nonwoven, NSN 8305-00-753-2967
500 or 600 Grit, Wet or Dry, Emery Paper
Preformed Packing (2req) NSN 5330-00-807-9638
Personnel Required:
68F Aircraft Electrician
1. REMOVAL
a.
b.
Remove retaining ring (1) from seat in impeller
housing (2).
Do not use metal tool to remove
preformed packing from packing groove.
Metal probe or screwdriver may score
packing groove.
NOTE
If pump cover seal is leaking, the seal may
be replaced without disassembling the
pump cartridge. If only replacing cover
seal, keep pump cover and impeller hous-
ing pointed up to keep impeller from
dropping off of shaft.
Screw cartridge pulling tool (3) (Item 4, Appendix
D) into pump cover (4). Slide pulling tool slide ham-
mer against bolt head to remove pump cover from
housing (2). Unscrew pump cover from pulling tool.
Remove and discard performed packing (5), Use
plastic or wood probe to remove packing.
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