TM 55-1520-240-23-6
7-74
REMOVE AND INSPECT POWER TRANSFER UNIT MOTOR SHAFT SEAL (570973) (AVIM)
7-74
INITIAL SETUP
Applicable Configurations:
All
Tools:
Hydraulic Repairer’s Tool Kit, NSN 5180-00-323-4891
Puller, NSN 5120-00-924-7715
Spanner Wrench (APP E-30)
Soft Jawed Vise
Aluminum Rod, 1/4 Inch X 3-3/4 Inches
Retaining Ring Pliers
Technical Inspection Tool Kit, NSN 5180-00-323-5114
Materials:
None
Personnel Required:
Aircraft Pneudraulics Repairer
Inspector
Equipment Condition:
Off Helicopter Task
NOTE
General inspection criteria (Task
7-1.1) for obvious damage applies
unless otherwise stated.
Inspection steps cover parts that are
subject to wear.
1.
Install motor (1) in vise (2).
2.
Remove lockscrew (3).
3.
Remove nut (4). Use wrench (APP E-30).
4.
Install rod (5) in motor (1).
Motor must be positioned with shaft
up to keep internal parts from falling
out. Keep hand pressure against
rod at all times while removing
parts. Otherwise, parts can become
disassembled, causing damage or
loss of parts.
5.
Remove retainer (6). Use puller.
5.1.
Inspect retainer seating surface (6.1) in bore of
motor. There shall be no nicks or scratches.
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