TM 1-1520-238-23
10-240
10.49.
AFT FUEL CELL REMOVAL
10.49.1. Description
This task covers:
Removal. Cleaning. Inspection.
10.49.2. Initial Setup
Tools:
Aircraft mechanic’s tool kit (item 376, App H)
Light duty laboratory apron (item 27, App H)
Pneumatic vacuum cleaner (item 65, App H)
Chemical protective gloves (item 154, App H)
Fuel cell kit (item 189, App H)
Adjustable air filtering respirator (item 262, App H)
Materials/Parts:
Lubricating oil (item 117, App F)
Tape (item 201, App F)
Personnel Required:
67R
Attack Helicopter Repairer
Two persons to assist
References:
TM 11-1520-238-23
Equipment Conditions:
Ref
Condition
1.57
Helicopter safed
10.2
Fuel system safety precautions observed
10.3
Aft poppet draincock removed
10.33
Aft fuel cell forward access panel removed
10.31
Aft fuel cell upper vent tube adapter re-
moved
10.43
Aft fuel cell fuel outlet breakaway valve re-
moved
10.114
Fuel boost pump removed
10.117
Fuel boost pump outlet hose removed
10.115
Fuel boost pump inlet hose removed
TM 11-1520-238-23
Communication security
unit removed
10.42
Aft fuel cell refueling breakaway valve re-
moved
10.116
Fuel boost pump canister removed
10.47
Aft fuel cell engine fuel supply hose re-
moved
10.44
Aft fuel cell refueling hose removed
10.38
Aft fuel cell pilot valve hose removed
10.36
Aft fuel cell four-way check valve removed
10.39
Aft fuel cell fuel quantity transmitter re-
moved
10.40
Aft fuel cell fuel shutoff valve removed
10.41
Aft air vent/pressure relief valve removed
10.37
Aft fuel cell level control pilot valve removed
10.35
Aft fuel cell fuel/defuel check valve removed
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