Section 4 –
AUXILIARY WINCH - HOW TO INSTALL AND DETACH BOOM HEAD
Mini-Crawler Crane M A E D A
4-136 1/2019 MC285C-3
Dismantling wedge socket
(5) Pull the wire rope (4) out of the wedge
socket (2), following the procedure
provided below.
Fig. 4-360
a. Bring a 4 to 6mm round bar (5) into
contact with the rope wedge (6).
b. Remove the rope wedge, lightly tapping
the round bar with a hammer in the
direction indicated by the arrow (a).
(6) Place the winch lever in the “Up” position
(pull toward you) to wind up the wire rope
(4) from the winch drum.
Assembling wedge socket
(7) Secure the end of the wire rope (4) to the
wedge socket (2), following the
procedure provided below.
Fig. 4-361
a. Draw the wire rope through the wedge
socket as shown in the figure.
b. With the rope wedge (6) in position (a),
pull the wire rope in direction indicated
by the arrow.
(8) Attach the rope clip (3) to the wire rope.
3. Fix the removed wedge socket (1) with
stowage rubber band (2) for auxiliary winch.
Fig. 4-362
4. Set the boom head hitch part (3) to point pin
(4) at boom tip, and align hole (5) and bracket
hole (6).
Fig. 4-363
DANGER! Securely hold boom head until
position pin (7) is inserted. If hand is released,
hitch part (3) may rotate, leading boom head
to fall off, and may result in a serious accident.
Fig. 4-364
5. Insert position pin (7) to the aligned holes,
and secure it with lynch pin (8).
DANGER! Position pin must be secured with
lynch pin. If position pin comes off during
work, it may cause a serious accident.
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