TM 1-1520-238-23
1-121
1.38.
UTILITY HYDRAULIC ACCUMULATOR VENTING
1.38.1. Description
This task covers:
Venting.
1.38.2. Initial Setup
Tools:
Aircraft mechanic’s tool kit (item 376, App H)
30 - 150 inch-pound 1/4-inch drive click type torque
wrench (item 435, App H)
Materials/Parts:
Wire (item 226, App F)
Personnel Required:
67R
Attack Helicopter Repairer
67R3F
Attack Helicopter Repairer/Technical
Inspector
Equipment Conditions:
Ref
Condition
1.57
Helicopter safed
2.2
Access door R325 opened
1.38.3. Venting
a. Vent utility hydraulic accumulator. Torque nut
(1) to 60 INCH-POUNDS.
(1) Remove cap (2) from fill/bleed valve (3).
(2) Remove lockwire from valve (3).
(3) Hold valve (3). Loosen nut (1) until resistance
is felt; then loosen 1/2 to 3/4 turn to off seat
valve.
(4) Open valve (3) until gage (4) indicates zero.
(5) Torque nut (1) to 60 INCH-POUNDS. Use
torque wrench.
(6) Install cap (2).
(7) Lockwire fill/bleed valve (3) to pressure gage
(4). Use wire (item 226, App F).
b. Inspect (QA).
c. Secure access door R325 (para 2.2).
END OF TASK
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M04-2120-1
