TM 55-1520-240-23-6
7-283.3
REPAIR CARGO DOOR PRESSURE ACTUATED VALVE
7-283.3
INITIAL SETUP
Applicable Configurations:
All
Tools:
Hydraulic Repairer’s Tool Kit, NSN 5180-00-323-4891
Goggles
Materials:
Crocus Cloth (E122)
Aluminum Oxide Abrasive Cloth (E1)
Dry Cleaning Solvent (E162)
Gloves (E186)
Personnel Required:
Aircraft Hydraulic Repairer
Inspector
Equipment Condition:
Off Helicopter Task
Cargo Door Pressure Actuated Valve Disassembled,
Cleaned, and Inspected (Tasks 7-283.1 and
7-283.2)
Do not polish any part to the extent
that plating is removed or dimensional
requirement cannot be maintained.
Handle poppet (3) and piston (2)
carefully to avoid damage to mating
surfaces.
Spool (5) and sleeve (6) are lap fitted
parts. Surface finish of lap fitted parts
is critical; handle carefully to avoid
damage to critical mating surfaces. If
either spool or sleeve is damaged,
replace both parts as an assembly.
1.
Polish minor nicks or scratches from plate (1),
piston (2), poppet (3), plunger (4), spool (5), and
sleeve (6). Use crocus cloth (E122).
7-1055
