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TM 55-1520-238-S
NOTE
f. Bleed Air from Hydraulic Hoses.
(1) Connect left landing gear 40 foot kneel-
The cart operator stands in front of and
ing hose (fig. 82) to hydraulic cart.
facing the helicopter. Connecting the left
hose to the right strut and the right hose to
(2) With shutoff valve opened, connect
the left strut will avoid confusion during
shut off valve/aircraft hose to 40 foot
kneeling and erecting operations. The
kneeling hose connected in step (1).
LEFT switch on the control pendant will
(3) Remove quick disconnect from aircraft
operate the landing gear on the operators
end of shutoff valve/hose.
left. The RIGHT switch on the control pen-
dant will operate the landing gear on the
(4) Hold aircraft end of shutoff valve/ hose
operators right.
in hydraulic cart reservoir.
(2) Open access cover on right hand FAB
(5) Press START button on pendant as-
walkway and route aircraft end of left
sembly.
hand shutoff valve/hose down through
(6) Press and hold LEFT LANDING GEAR
opening.
switch, on pendant assembly, in the UP
(3) Remove cap from kneeling nipple on
position until airfree hydraulic fluid
right hand shock strut.
flows from hose.
(4) Connect aircraft end of left hand shutoff
(7) Release LEFT LANDING GEAR switch
valve/hose quick disconnect to kneel-
and press STOP button on pendant as-
ing nipple on right hand landing gear
sembly.
strut.
(8) Replace quick disconnect on aircraft
(5) Open access cover on left hand FAB
end of shutoff valve/hose.
walkway and route aircraft end of right
(9) Repeat steps (1) thru (8) for right land-
hand shutoff valve/hose down through
ing gear kneeling hoses and shutoff
opening.
valve.
(6) Remove cap from kneeling nipple on
g. Connect Shutoff Valve/Hoses to Land-
left hand shock strut.
ing Gear.
(7) Connect aircraft end of right hand shut-
off valve/hose quick disconnect to
kneeling nipple on left hand landing
WARNING
gear strut.
To prevent injury and damage to
85 KNEEL HELICOPTER.
equipment due to strut collapse and
helicopter rollover, insure that hy-
draulic line is properly routed to pre-
WARNING
vent fouling. Route hydraulic line
down through the access cover on
To prevent injury and equipment
top of the forward avionics bay
damage from strut collapse and he-
(FAB) walkway to the landing gear
licopter rollover, personnel will be
kneeling nipple.
thoroughly familiar with procedures
To prevent injury and damage to
contained in this chapter prior to
equipment due to strut collapse and
conduction kneeling or erecting op-
helicopter rollover, do not force
erations.
quick disconnect on to strut kneel-
To prevent injury and equipment
ing valve nipple. Difficulty in con-
damage from strut collapse and he-
necting quick disconnect may indi-
licopter rollover, personnel will re-
cate strut collar is unlocked and if
main clear of helicopter during
forced, the quick disconnect may
kneeling or erecting operations.
fail. If difficulty is experienced, jack
helicopter (TM 1-1520-238-23) to re-
To prevent injury from possible heli-
lieve pressure before proceeding.
copter rollover, keep struts as close
(1) Place hydraulic cart in front of helicop-
to the same length as possible dur-
ter with hydraulic cart and cart operator
ing kneeling and erecting opera-
facing helicopter.
tions.
83

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