TM 1-1520-238-23
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1.88.
HOISTING – MAIN ROTOR GEARSHAFT INSTALLATION
1.88.1. Installation
WARNING
Hoisted components can cause injury
or death if they fall. Keep away from
hoisted components and loaded
crane. If injury occurs, seek medical
aid.
a. Position crane hook (1) over installed main
rotor gearshaft (2).
(1) Rotate crane handle (3) to up position to al-
low lateral movement of crane boom arm (4).
(2) Use two tag lines (5) to move boom arm (4).
(3) Turn boom arm (4) to aline hook (1) over sling
hoisting ring (6).
(4) Rotate handle (3) to down position to prevent
lateral movement of boom arm (4).
CAUTION
To prevent crossing cable on spool and
damage to crank, tension must be ap-
plied when letting out or taking in cable.
b. Insert hook (1) in ring (6).
(1) Crank winch (7) to position hook (1) just
above gearshaft (2).
(2) Snap hook (1) into ring (6).
(3) Crank winch (7) to remove cable slack.
(4) Tie 20-foot tag line to bottom center of gear-
shaft (2).
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