TM 55-1520-240-23-1
1-35
HOISTING HELICOPTER — 23,900 POUND GROSS WEIGHT
(Continued)
1-35
1.
Apply coat of lubricant (E237) on four sling pins
(1).
2.
Working from aft tunnel position AFT sling legs
(2) on lifting lugs (3) at sta. 475.3. Install pins (1)
in lugs. Do not twist legs together.
NOTE
Sling legs are marked FWD and AFT.
3.
Work from forward tunnel, position FWD sling
legs (4) of lifting lugs (5) at sta. 122.25. Install
pins (1) in lugs. Do not twist legs together.
4.
Install warning streamers (6) on links (7 and 8).
5.
When lifting helicopter with pylon (9) installed,
position loop (10) on hoist hook (11). Go to step
7.
6.
When lifting helicopter without pylon (9), position
loop (12) on hook (11).
Personnel must be clear of area under
helicopter during hoisting.
7.
Attach guide line (13) to forward landing gear
(14). Have helper hold guide line.
8.
Attach guide line (15) to aft landing gear (16).
Have helper hold guide line.
9.
Slowly take up sling slack with hoist. Be sure
legs (2 and 4) are clear of components.
10.
Slowly raise helicopter to clear ground. Check
helicopter is level and steady. If not level lower
helicopter to ground, add ballast load and repeat
step 8.
11.
Hoist and move helicopter slowly and carefully
to desired place. Operate hoist without sudden
starts, stops, drops, or sharp turns that could
start helicopter swinging.
12.
Check area where helicopter will be positioned.
Area must be clear of equipment and other
objects.
13.
Lower helicopter slowly until full weight of
helicopter is on wheels, and legs (2 and 4) of
sling are slack.
14.
Lower hoist hook (11). Remove loop (10 or 12)
and lower slowly to drive tunnel (17).
15.
Remove four pins (1). Remove sling (T71) (18).
16.
Remove two warning streamers (6).
NO BREAK - WORK HARDER
FOLLOW-ON MAINTENANCE:
Connect aft end of forward connecting link (Task
11-195).
Connect upper outboard rigid link in second stage
mix (Task 11-191).
Close pylon leading edge fairing (Task 2-2).
Close pylon clamshell doors (Task 2-2).
Install rotary-wing blades (Task 5-84).
Remove servocylinder safety blocks (Task 11-29).
Install forward transmission aft fairing (Task 2-68).
Close forward work platform (Task 2-2).
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