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TM 55-2915-335-30&P
2-12. VAPOR BLEED VALVE - lNSPECT/REPLACE
2-12
This task covers Inspection and replacement of the vapor bleed valve.
INITIAL SETUP
Tools:
Material/Parts:
Aircraft Electrician’s Tool Kit, NSN 5180-00-323-4915
Thread Locking Compound, NSN 6505-00-133-8025
Press Arbor, Hand Operated. 1/2 Ton Pressure, NSN
Cleaning Cloth, Nonwoven, NSN 8305-00-753-2967
3444-00-243-2654, or equivalent
White Petrolatum, NSN 6505-00-133-8025
500 or 600 grit, wet or dry emery paper
Personnel Required:
Dry Cleaning Solvent, NSN 6850-00-274-5421
68F Aircraft Electrician
Umbrella Check Valve, NSN 4510-01-170-5681
68D Powertrain Repairer
Equipment Condition:
Canister removed from pump housing PARA 2-11
1. REMOVAL
Do not replace umbrella check valve
without removing vapor bleed valve
adapter plug from pump housing. Pulling
umbrella check valve without removing
adapter plug may lead to pump failure
due to vapor bleed hole blockage.
a.
b.
Use a screwdriver with cloth or other padding
over the blade. Keep screwdriver blade fully under
shoulder of adapter plug. Be careful not to
damage adapter plug or housing. Pry a little on
one side, then the other to remove adapter plug
(1) from pump housing (2).
Remove and discard umbrella check valve (3).
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