TM 1-1520-238-23
1-319
1.105.
MAINTENANCE CRANE REMOVAL – continued
CAUTION
To prevent damage to jackpads or verti-
cal mast, torque arm must be supported
while torque handle and clamp screw are
loosened evenly.
g. Remove support arm (19) from jackpad (20)
and mast (9).
(1) Have assistant support arm (19).
(2) Loosen clamp screw (21) and torque handle
(22).
(3) Swivel clamp (23) away from jackpad (20).
(4) Remove handle (22) from bottom of mast (9).
(5) Remove support arm (19).
(6) Set support arm (19) with other removed
crane components.
h. Remove mast (9) from helicopter.
(1) With assistants securely supporting mast (9),
remove quick-release pin (24) from tie block
(25).
(2) Hold mast (9). Swing short tierod (26) and
long tierod (27) out of tie block (25) to top of
fuselage.
(3) Reinstall pin (24) in block (25).
(4) With all personnel lifting mast (9) together, lift
foot cone (28) out of jackpad (29) and away
from helicopter.
(5) Set foot of mast (9) down when it clears main
landing gear wheel.
(6) Lower mast (9) (forward) to lay on ground
alongside helicopter.
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23
19
20
21
28
9
22
19
29
30
M04-2100-8
26
27
25
24
9
25
24
M04-2100-9
