Maeda MC815C, Руководство по обслуживанию, Страница: 250 / 378

7-12
3.3 ACTIONS TO TAKE WHEN THE WINCH WIRE ROPE IS TWISTED
Always put on thick leather work gloves when handling the wire rope.
CAUTION
Rewind the wire rope from time to time so that the hook block side and the winch drum side are opposite
to each other.
Doing so lengthens the wire rope life.
When the wire rope is twisted, correct the twist in the following steps.
1. Check the twist direction from the normal hook state and count the
number of twists.
2. Shift the right control lever into “Down” (push it forward) to rest the
hook block on the ground.
If the hook block cannot be lowered, shift the right control lever into the
“Lower” side (push it to the right) to lower the boom, or shift the left
control lever into the “Retraction” side (pull it toward you) to retract and
lower the boom.
3. Operate the starter switch to the “OFF” position to stop the engine.
4. Remove the fixing pin (1) securing the wedge socket, and remove the
wedge socket (2).
5. Install the wire rope end, forcibly making a number of twists calculated
by "n" (number of falls of wire rope) multiplied by the number of hook
block twists, and in the opposite direction to that of the hook block twist
observed in step 1 (the opposite direction to that in which the wedge
socket tries to return naturally when you release your hand from it).
6. Start the engine and shift the right control lever into the “Raise” position
(push it to the left), and raise the boom until the maximum boom angle
is reached.
7. Shift the left control lever into the “Extension” side (push it forward) to
fully extend the boom.
8. Shift the right control lever into the “Up” or “Down” side, and repeat
hoisting and lowering the hook block several times.
9. Spool onto the winch drum in an orderly manner, with tension applied
to the wire rope.
10. Repeat the above steps until the hook twists are eliminated.
Replace the wire rope with a new one if the twist is not corrected by the
above steps.