SET-UP AND INSTALLATION 16000 HANGING MAX-ER® OPERATOR MANUAL
4-86
Published 04-17-17, Control # 067-11
Breaking in Wire Rope
After installing a new wire rope, break it in by operating it
several times under light load and at reduced speed. This
practice allows the wire rope to form its natural lay and the
strands to seat properly.
NOTE Wire rope will stretch during the break-in period,
reducing the wire rope’s diameter as the strands
compact around the core.
The dead wraps of wire rope on the drum can become slack
during operation, even if the utmost care is used during
installation of the wire rope. This slackening is caused by the
normal stretch that occurs in a new wire rope under tension
and periodically throughout the wire rope’s life from release
of the load.
When slackness is noted, tightly wind the dead wraps of wire
rope onto the drum. If left uncorrected, a wedging action with
subsequent layers will occur, and the resultant abrasion may
cause broken wires in the dead wraps.
DRUM KICKER ADJUSTMENT
General
A drum kicker is provided on both flanges of the main load
drum (in boom butt) to improve wire rope spooling for long
boom lengths with small fleet angles where the wire rope
might stack up along either drum flange.
Observe the wire rope during initial break-in and periodically
during operation. If the rope stacks up at either end of the
drum, adjust the drum kickers.
Adjustment
See Figure 4-46 for the following procedure.
To move drum kickers (1) into the drum (take up space),
proceed as follows:
1. Remove drum guard from both ends of drum.
2. Remove an equal number of washers (3) from both
sides of kicker (1), one side at a time. Each washer
allows kicker to move 0.098 in (2,5 mm).
3. Loosely reinstall cap screws (2) and remaining washers
(3).
4. Loosen lock nuts (4) and adjust set screws (5) to move
kickers (1) into drum.
5. Repeat steps 1-3 only enough to improve spooling.
Moving drum kickers in too far can cause premature
wire rope wear.
6. Securely tighten set screws (5) and lock nuts (4).
7. Reinstall drum guards.
1
2
3
4
5
6
FIGURE 4-46
Item Description
1 Drum Flange
2Kicker
3 Cap Screw
4 Washers
5 Lock Nut
6Set Screw
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