TM 1-1520-238-23
1-122
1.39.
UTILITY HYDRAULIC RETURN ACCUMULATOR VENTING
1.39.1. Description
This task covers:
Venting.
1.39.2. 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 fairing L175 removed
1.39.3. Venting
a. Vent utility hydraulic return 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. Install access fairing L175 (para 2.2).
END OF TASK
M04-3293-1
M04-3293-2
3
2
4
1
