TM 1-1520-238-23
6-12.2
Change 9
6.1A.
AFT HANGER BEARING ASSEMBLY/DISASSEMBLY
6.1A.1. Description
This task covers:
Disassembly. Cleaning. Assembly.
6.1A.2. Initial Setup
Tools:
Aircraft maintenance tool kit (item 372, App H)
7/16 x 3/8-inch drive torque wrench adapter (item 22,
App H)
Light duty laboratory apron (item 27, App H)
Chemical protective gloves (item 154, App H)
Adjustable air filtering respirator (item 262, App H)
30 - 150 inch-pound 3/8-inch drive click type torque
wrench (item 441, App H)
Materials/Parts:
Scotch Brite Pad (item 130, App F)
Alcohol (item 25, App F)
Cheesecloth (item 51, App F)
Personnel Required:
68D
Aircraft Powertrain Repairer/NDI
67R3F
Attack Helicopter Repairer/Technical
Inspector
References:
TM 1-1500-204-23
Equipment Conditions:
Ref
Condition
1.57
Helicopter safed Aft Hanger Bearing re-
moved
CAUTION
Ensure that outer diffuser being installed is same outer diffuser that was removed. Do not intermix or swap
diffuser components or damage to diffuser will occur.
6.1A.3. Removal
a. Disassemble hanger, and secure hanger bearing to work bench.
b. Install AH-64 nutation/torque reactor tool.
NOTE
The small flange must point toward the hanger bearing prior to beginning the removal of parts
and components from hanger bearing.
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