TM 55-1520-240-23-5
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INSTALL AFT ROTOR SHAFT UPPER SEAL (AVIM)
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INITIAL SETUP
Applicable Configurations:
All
Tools:
Aircraft Mechanics Tool Kit, NSN 5180-00-323-4692
Oven (250ºF) or Gun-Type Heater
Pyrometer
Brass or Aluminum Drift
Hoisting Eye (T32)
Work Hoist
Source of Low Pressure Compressed Air
Container, 2 Quart
Adapter (T18)
Torque Wrench, 30 to 150 Inch-Pounds
Torque Wrench, 150 to 750 Inch-Pounds
Stop Watch
Materials:
Gloves (E186)
Oil (E254)
Dry Cleaning Solvent (E162)
Cloths (E120)
Lockwire (E231)
Kevlar Gloves (E187)
Parts:
Packings
Seal
Personnel Required:
Medium Helicopter Repairer
Aircraft Powertrain Repairer
Inspector
References:
TM 55-1520-240-23P
General Safety Instructions:
Wear Kevlar gloves when handling
heated parts.
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