WIre Rope and Reeving
MAINTENANCE All wire ropes in active service should be inspected DAILY along with
spooling, sheaves, wedge sockets, and any other wire rope fittings for damage. Once
WEEKLY a thorough wire rope inspection should be made by a competent inspector. A
record should be kept of the inspections on the WIRE ROPE INSPECTION RECORD on
page 152 found in Section 5 - Inspection.
Refer to ANSI Standard B30.5 for guidelines covering the inspection, maintenance, repair
and replacement of wire rope. Worn, kinked, birdcaged, fatigued or otherwise damaged
wire rope must be removed immediately. Wire rope, when properly installed, lubricated and
employed, will give many hours of satisfactory use. Whereas, a new piece of wire rope can
be immediately ruined if misused.
Replace or repair any items found to be in unsatisfactory condition.
In addition to damage such as kinking, crushing, and broken wires, factors such as
corrosion, abrasion, pitting, peening, and scrubbing of outside wires, reduction of rope
diameter, the condition of other components and proper lubrication are considered. Refer
to
CABLE LUBRICATION METHODS on page 302 found elsewhere in this section.
Before installing a new or replacement rope, make certain the rope to be used is the proper
type and size. The wrong rope will not function properly and may even be dangerous.
THE USE OF NON-ROTATING 18 x 7 CLASS WIRE ROPE IS NOT
RECOMMENDED IN MULTIPLE REEVING APPLICATIONS AND, IF USED FOR
APPLICATIONS INVOLVING SINGLE PART LINE, MUST NOT BE USED WITH
LOADS EXCEEDING ONE FIFTH (1/5) THE RATED BREAKING STRENGTH. The
inner wires are generally the first to fail on this class of rope, making it very
difficult to inspect, as broken wires cannot be seen. Refer to ANSI B30.5, Section
5.24 for the necessary inspection procedure and replacement criterion.
If non-rotating or spin resistant rope is used on this crane, the rope must be replaced if two
or more wires are found broken in one lay of the rope.
CABLE REEVING When reeving the machine for any job, remember that hoisting and
lowering speeds decrease as the number of parts of line increases. For the most efficient
use of the machine, it is desirable to use the minimum number of required parts for lifting
the anticipated loads.
This machine incorporates a "Quick Reeving" boom head and block which do not require
removal of the wedge and socket from the rope in order to change the reeving. Removal of
two pins in the boom head and three in the hook block will allow the wedge and socket to
pass through.
NEVER USE LESS THAN THE NUMBER OF PARTS CALLED FOR BY THE LOAD
RATING CHART. THE MINIMUM REQUIRED NUMBER OF PARTS IS
DETERMINED BY REFERRING TO THE LOAD RATING CHART
365P/N 12261-683 REVISED: January 2015
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