TM 1-1520-238-23
7-63
7.18.
PRIMARY HYDRAULIC MANIFOLD RESERVOIR SEAL REPLACEMENT (AVIM)
7.18.1. Description
This task covers:
Removal. Cleaning. Inspection. Installation. Testing.
7.18.2. Initial Setup
Tools:
Hydraulic tool kit (item 384, App H)
Light duty laboratory apron (item 27, App H)
Industrial faceshield (item 129, App H)
Chemical protective gloves (item 154, App H)
9/64-inch hexagon x 1/4-inch drive screwdriver socket
wrench attachment (item 329, App H)
30 - 150 inch-pound 1/4-inch drive click type torque
wrench (item 435, App H)
0 - 30 inch-pound 1/4-inch drive dial indicator torque
wrench (item 445, App H)
Materials/Parts:
Channel seal
Packing (6)
Packing (MS28775-4) (2)
Seal (2)
Union (HS4508-4C4)
Union (MS21902J4)
Cloth (item 52, App F)
Hydraulic fluid (item 92, App F)
Petrolatum (item 138, App F)
Wire (item 222, App F)
Personnel Required:
68H
Aircraft Pneudraulics Repairer
67R3F
Attack Helicopter Repairer/Technical
Inspector
7.18.3. Removal
a. Remove housing (1) from manifold (2).
(1) Remove lockwire. Remove four bolts (3).
(2) Remove housing (1) from manifold (2).
(3) Remove and discard packing (4) from man-
ifold (2).
b. Remove guard (5) from housing (1).
(1) Remove lockwire. Remove three screws (6).
Use hexagon screwdriver.
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