Maeda CC1485S-1, Инструкции по эксплуатации, Страница: 253 / 370

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[INSTALLATION OF WINCH WIRE ROPE]
• Always put on thick leather work gloves when replacing the wire rope.
• Be sure to attach the rope wedge properly to secure the wire rope. Serious accidents
may occur if the wire rope is detached during crane operations.
CAUTION
• Avoid irregular winding of the wire rope on the winch drum.
• Every time immediately after attaching a new rope, hoist a weight (approximately 0.98
kN [100 kg]) with the boom extended and raised fully, and repeat raising and lowering
the hook several times to allow the new rope to be conformed.
• The wire rope is coiled. Exercise caution not to form a kink in the rope when winding it
up. Be sure to unravel by rotating the rope to pull it out of the winch drum.
Use the following procedure to attach the wire rope.
1. Hold the wire rope and pass the wire rope (5) through
the weight of over-winding prevention unit, load
sheave (11) at the end of load sheave (11), wire guide
(12) of boom Nos. 2, 3 and 4, roller sheave (13),
sheave (14) inside the boom derricking cylinder
mounting bracket, and slide sheave (15).
2. Draw the wire rope (5) through the rope attachment
hole of the winch drum (9). Secure the wire rope (5) to
the winch drum (9), following the procedure provided
below.
(1) Draw the slackened wire rope (5) through the
winch drum (9).
(2) The rope wedge (10) should be in position (a).
Pass the wire rope (5) around the rope wedge and
yank (pull) at the rope in the direction indicated by
the arrow.
In this step, adjust the length of the wire rope (5) to
keep the end of the wire rope from protruding from
the narrow hole in the winch drum (9).
3. Operate the right machine operation lever to "RAISE"
(pull toward the operator) to wind up slowly the wire
rope (5) to the winch drum (9).
At this point, leave the wire rope for about 10 meters
unwounded ahead of the boom edge.
CAUTION
To prevent irregular winding, apply a tension force of
approximately 1.47kN (150kg) particularly to the
layers 1, 2 and 3 during the winding.