398
11. Remove the hook block and the wire rope (12), following the
procedure below.
CAUTION
• Be careful not to wind the wire ropes irregularly.
• Do not unwind after the hook block touches the ground,
since the wire ropes are wound irregularly inside the
winch drum when the hook is lowered further to the
ground.
(1) Make the main boom fully retracted and make sure
the main boom angle is approx. 20 degrees.
(2) Operate the winch lever to lower the hook block so
that it is barely touching the ground.
(3) Lower the hook to the ground by lowering the boom.
(4) Remove the bolt (39) and pull out the wedge socket
pin (38) to remove the wedge socket (37) from the
main boom.
(5) Remove the wire clip (40).
(6) Remove the rope wedge (41) by preparing a
cylindrical rod of 6 to 8 mm and lightly tapping the
rope wedge (41) with a hammer in the direction
indicated by the arrow (a).
(7) Pull out the wire rope (12) from the hook.
(8) Pull the wire rope (12) out of the weight (42) of the
over-hoist detector.
(9) Pull out all the wire ropes (12) from three sheaves on
the main boom tip.
(10) Wind up the wire rope (12) up to the winch drum and
tie the tip to the winch case guard.
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