TM 55-1520-240-23-6
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DISASSEMBLE AND INSPECT HOIST PRESSURE REDUCING VALVE (AVIM)
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INITIAL SETUP
Applicable Configurations:
All
Tools:
Hydraulic Repairers Tool Kit, NSN 5180-00-323-4891
Soft Jawed Vise
Open End Wrench, 1 Inch
Wood Dowel, 5/16 Inch X 6 Inches
Technical Inspection Tool Kit, NSN 5180-00-323-5114
Materials:
None
Personnel Required:
Aircraft Pneudraulics Repairer
Inspector
References:
Task 7-1.1
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.
Remove lockwire from fitting (1).
2.
Position valve body (2) in soft jawed vise (3),
fitting (1) up.
3.
Remove fitting (1) and spring (4) from body (2).
4.
Remove washer (5), packings (6 and 7), and
retainer (8) from fitting (1).
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