TM 1-1520-238-23
1-120
1.37.
UTILITY HYDRAULIC RETURN ACCUMULATOR SERVICING – NITROGEN – continued
c. Service utility hydraulic return accumulator
with 55 PSIG nitrogen.
(1) Hold valve (2). Loosen nut (5) until resistance
is felt; then loosen 1/2 to 3/4 turn to off seat
valve.
(2) Slowly pressurize accumulator to 55 PSIG
using pressure regulator and pressure gage
in inflator kit.
(3) Allow pressure to stabilize 5 minutes. Re-
adjust pressure if necessary.
(4) Tighten nut (5).
d. Disconnect nitrogen truck and inflator kit ser-
vice hose (1) from valve (2). Torque nut (5) to 60
INCH-POUNDS.
(1) Remove nitrogen pressure.
(2) Hold valve (2). Remove hose (1) and adapter
(4).
(3) Torque nut (5) to 60 INCH-POUNDS. Use
torque wrench.
(4) Install cap (3) on valve (2).
(5) Lockwire valve (2) to pressure gage (6). Use
wire (item 226, App F).
e. Inspect (QA).
f. Service utility hydraulic system with fluid
(para 1.34).
g. Install access fairing L175 (para 2.2).
END OF TASK
M04-3292-2
INFLATOR
ASSEMBLY KIT
NITROGEN CART
2
6
3
M04-3292-3
6
5
4
1
2
