HOISTS 14000 SERVICE MANUAL
5-14
Published 09-10-14, Control # 065-24
SHEAVE, ROLLER, AND DRUM INSPECTION
Perform the following inspections WEEKLY.
1. Check the drum clutches and brakes for proper
adjustment.
2. Check all sheaves, rollers, and drums for the following
conditions:
a. Unusual noises
b. Freedom of movement — must turn freely by hand.
Wire rope may have to be loosened to perform this
inspection.
c. Wobble — must turn true with very little side-to-side
or up-and-down play
d. Signs of rust (indicating that water may have
entered bearing).
e. Grease leaks (indicating a faulty seal or water in
grease)
The above problems indicate bearing damage. If found,
the corresponding sheave, roller, or drum should be
disassembled for further inspection. New bearings
should be installed.
For sheaves not equipped with grease fittings, be sure to
pack new bearings with grease at assembly.
FIGURE 5-12
Observe groove to see if contour of gauge
matches contour at bottom of sheave groove.
Proper fitting sheave groove should support wire
rope or 135–150° of rope circumference.
Groove Too Small
Groove Too Large
135°–150°
FIGURE 5-13
“Corrugated” steel sheave,
roller, or drum will cause
wire rope to wear rapidly.
FIGURE 5-14
Item Description
1 Nylon Sheave
2 Improper Snap Ring Engagement
3 Steel Insert of Bearing
4 1/8 in (3 mm) Maximum Sideways Displacement
1
3
2
4