6000-Series Super Tugger Cable Pullers
Greenlee Tools, Inc.
16
4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
Typical Resultant Force at Sheave
Cable Pulling Principles
(cont’d)
Cable Pulling Forces
(cont’d)
At the Sheaves
Sheaves are used to change the direction of the pull.
A change in direction creates a new
resultant force
that
is
greater than
the cable puller’s maximum pulling force.
This new resultant force exerts itself on the sheaves,
sheave anchoring system, and support structures
illustrated.
The resultant amount of force depends on the angle of
the change in direction. A brief table is provided here;
for more details, see IM 1363 (999 2998.8).
Resultant Force Table for the Super Tugger
®
(28.9 kN or 6500 Lb Maximum Pulling Force)
Resultant Force=
22.3 kN (5005 lb)
135
Angle of Change
in Direction
180°
0 (0)
150°
15 (3380)
135°
22.3 (5005)
120°
28.9 (6500)
90°
40.8 (9165)
60°
50.0 (11,245)
45°
53.5 (12,025)
30°
55.8 (12,545)
0°
57.8 (13,000)
T
Illustration
R
