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REMOVE FORWARD LANDING GEAR (Continued) | Up
TM-55-1520-240-23-3 CH-47D Heilcopter Manual | Next
CONVERT FORWARD LANDING GEAR |
TM 55-1520-240-23-3
3-2
REMOVE FORWARD LANDING GEAR
(Continued)
3-2
REMOVE BOLTS
High pressure air valve cap can be
blown off causing injury to personnel.
Loosen cap one or two turns to allow
trapped air to escape before removing
cap.
14.
Release air pressure from shock strut through
high pressure air valve (18) as follows:
a.
Remove cap (19) from high pressure air
valve (18).
b.
Hold valve body (20) with wrench and turn
outer nut (21) counterclockwise 1/2 to 1-1/2
turns.
c.
Allow air pressure to discharge completely.
Position tiedown chain clear of tubing.
Otherwise, damage to tubing can
cause a malfunction.
15.
Collapse shock strut and tie upper cylinder (22)
to lower piston (23) in collapsed position. Use
tiedown chain.
16.
Lower jack slowly until wheels touch floor.
17.
Have assistant support shock strut.
18.
Remove nut (16), two washers (24), and bolt (25).
19.
Remove two nuts (17), four washers (26), two
seals (27), and bolts (28).
20.
Move landing gear away from helicopter.
FOLLOW-ON MAINTENANCE:
None
END OF TASK
3-11
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