TM 1-1520-238-23
1-114.2
Change 5
1.35.
HYDRAULIC SYSTEM BLEED – continued
WARNING
Hydraulic pressure is 3000 psi. This
can cause injury. If injury occurs, seek
medical aid.
y. Adjust AGPU output pressure to 3000 psi
(TM 55-1730-229-12).
z. Turn AGPU low pressure bleed valve 1/4 turn
open
(CCW)
for
system
bleed
(TM 55-1730-229-12).
aa. Set TAIL WHEEL switch (42) on pilot instru-
ment panel to LOCK.
NOTE
Control motions must be slow to moder-
ate during actuator movement. This will
allow air in system to dispense through
AGPU pressure bleed.
ab. Actuate hydraulic system.
(1) Articulate pylons 10 complete cycles.
(a) Open access door L115 (para 2.2).
(b) Toggle PYLON ACTG switch (43) to the
UP position then DOWN 10 cycles.
(2) Articulate flight controls 10 complete cycles.
(a) Slowly move pilot cyclic stick (44) in a box
motion 10 complete cycles.
NOTE
Movement of cyclic stick to all four corner
stops will be one cycle.
(b) Slowly move pilot collective stick (45) to
full up position, then to full down. Repeat
10 complete cycles.
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M04-1611-10A
42
ARM
SAFE
UP
OFF
DOWN
43
PYLON
ACTG SW
M04-1611-26
PILOT STATION
M04-1611-27
BOX MOTION
45
44
