M A E D A Mini-Crawler Crane Section 5 – GENERAL MACHINE MAINTENANSE
3/2019 MC305C-3 5-69
Winch Wire Rope - Installation
WARNING! Be sure to attach the rope wedge
properly to secure the wire rope. Potential
serious accident may occur due to
detachment of the wire rope during crane
operation if disregarded.
CAUTION:
• Avoid irregular winding of the wire rope in
the winch drum.
• Always hoist an object 2.9 to 4.9KN (300 to
500kg) with the boom extended and raised
fully immediately after attaching a new rope.
Repeat raising and lowering the hook
several times until the new rope conforms.
• The wire rope is coiled. Exercise caution not
to form a kink in the rope when winding it up.
Be sure to unrope by rotating the rope to
pull it out of the winch drum.
Use the following procedure to attach the wire
rope.
1. With the end of the wire rope held, draw the
wire rope (5) through the weight of the over
winding detector, load sheave (1) at the boom
end, wire guide (2) of No.2, 3, and 4 boom,
snap sheave (3), and idler sheave (4).
Fig. 5-145
2. Draw the wire rope (5) through the
attachment hole of the winch drum (8).
Secure the wire rope (5) to the winch drum
(8)., following the procedure provided below.
(1) Draw the wire rope (5) through the winch
drum (8). with the rope loose.
(2) The rope wedge (9) should be in position
(a). Pass the wire rope (5) around the rope
wedge and yank at the rope in the
direction indicated by the arrow.
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 (8).
Fig. 5-146
Fig. 5-147
3. Place the winch lever in the "Up" position (pull
it toward you) slowly to wind up the wire rope
(5) in the winch drum (8).
Ensure that the wire rope is coiled between
the irregular winding protective roller (B) and
winch drum. The wire rope needs to jut out
the boom end (approx. 10m).
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