Folio 931-9
WIRE ROPE INSTALLATION AND MAINTENANCE
STEEL SHEAVE, ROLLER, AND DRUM
INSPECTION
Inspect steel sheaves, rollers, and drums WEEKLY.
1. Check depth, width, and contour of each steel sheave
using a groove gauge as shown in Figure 13. Replace
sheaves that have over or under size grooves.
2. Remachine or replace steel sheaves, drums, or rollers
that have been corrugated by the wire rope’s print as
shown in Figure 14.
3. Replace steel sheaves and drums that have broken
flanges or cracks in hubs, spokes, etc.
4. Keep drum clutches and brakes in proper adjustment
and working order.
FIGURE 12
S144
S145
S146
S147
S148
S149
Dog-Leg
or
Kink
Drum
Abrasion
Drum
Crushing
Sheaves
Too Small
Corrosion
Bird Cage
FIGURE 13
A925
135°–150°
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
WRONG
RIGHT
FIGURE 14
S150
“Corrugated” sheave,
roller, or drum will cause
wire rope to wear rapidly.
395143
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