AFT HANGER BEARING ASSEMBLY/DISASSEMBLY

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. GO TO NEXT PAGE