TM 1-1520-238-23
1-112
Change 6
1.35.
HYDRAULIC SYSTEM BLEED – continued
(3) Set RKT/GUN/MSL switch (23) on CPG ORT
left handgrip (24) to center position.
k. Perform area weapon system power down
(TM 9-1090-208-23).
l. Adjust AGPU output pressure to 0 psi
(TM 55-1730-229-12).
m. Place rags between nut (29) on utility hydrau-
lic return accumulator fluid line (30) and air-
frame (31).
n. Bleed utility hydraulic return accumulator
fluid line (30). Torque nut (29) to 160 INCH-
POUNDS.
(1) Hold reducer fitting (32).
(2) Loosen nut (29) 1/4 turn to allow hydraulic
fluid to discharge.
(3) Watch for air bubbles in fluid.
(4) Torque nut (29) to 160 INCH-POUNDS when
fluid no longer discharges. Use torque
wrench and crowfoot.
o. Repeat steps h. thru n. until no air bubbles are
visible in discharged fluid.
p. Adjust AGPU output pressure to 3000 psi
(TM 55-1730-229-12).
q. Set RTR BK switch (33) on pilot left console
(34) to BRAKE then to OFF.
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23
24
M04-1611-31
M04-1611-20A
32
29
30
31
33
34
M04-1611-2A
