Hook Loads Illustrated - Textron Greenlee Ultra Tugger 15000-22 Manual De Instrucciones

Cable Pulling Principles (cont'd)
Some Hook Loads Illustrated
A straight rope exerts no load on the hook and structure.
Hook Load = 1/2 of the Pulling Force
A rope that makes a 150° angle exerts 1/2 of the pulling
force on the hook and structure.
Hook Load = 3/4 of the Pulling Force
A rope that makes a 135° angle exerts 3/4 of the pulling
force on the hook and structure.
Greenlee / A Textron Company
Ultra Tugger
Hook Load
0
1
2
180°
0
1
2
150°
0
1
2
135°
® Cable Puller and Pulling Packages
Hook Load = Total Pulling Force
A rope that makes a 120° angle exerts the total pulling
force on the hook and structure.
Hook Load = 1-1/2 Times the Pulling Force
A rope that makes a 90° angle exerts 1-1/2 times the
pulling force on the hook and structure.
Hook Load = 2 Times the Pulling Force
A rope that makes a 0° angle exerts 2 times the pulling
force on the hook and structure.
23
4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
0
1
2
120°
0
1
2
90°
0
1
2
0°