Maeda MC405C-3 - Page 321

Mini-Crawler Crane M A E D A Section 5 – GENERAL MACHINE MAINTENANCE
1/2019 MC405C-3 5-69
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).
Fig. 5-167
4. In response to the number of falls, draw the
wire rope through the load sheave at the
boom end, hook block sheave, guide
sheave, and retraction cam.
Fig. 5-168
Fig. 5-169
Fig. 5-170
5. Secure the end of the wire rope (5) to the
wedge socket (3), following the procedure
provided below.
Fig. 5-171
(1) Draw the wire rope (5) through the
wedge socket (3).
(2) With the rope wedge (7) in position (a),
yank at the wire rope (5) in the direction
indicated by the arrow.
6. Attach the rope clip (4) to the wire rope (5).
7. Secure the wedge socket (3) to the boom
with the wedge socket pin (1), and tighten
the wedge socket fixing bolt (2).
Fig. 5-172
8. Place the boom derricking lever in the
"Raise" position (pull it toward you) or the
boom telescoping lever in the "Extend"
position (pull it toward you) to raise the hook
block.
NOTICE: Winch operation is allowed only after
the hook block is raised.
9. With the boom extended and raised fully,
place the winch lever in the "Down" position
(push it toward the front) to adjust the wire
rope (5) until 3 to 4 turns of wire are left in
the winch drum (8).
10. With the wire rope (5) held under tension,
place the winch lever in the "Up" position
(pull it toward you) to wind up the wire rope
(5) in the winch drum (8).
4-falls
2-falls
1-fall