Summary Of Cable Pulling Principles; Planning The Pull - Textron Greenlee Ultra Tugger 15000-22 Manual De Instrucciones

Cable Pulling Principles (cont'd)

Summary of Cable Pulling Principles

• A cable pulling system consists of many components
that work together to accomplish a pull.
• The cable puller is rated by its maximum pulling force;
every other component is rated by its maximum rated
capacity. The maximum rated capacity of every
component must meet or exceed the maximum pulling
force of the cable puller.
• The cable puller must overcome two types of resis-
tance: gravity and friction. The puller's capstan, the
pulling rope, and the operator tailing the rope work
together to produce pulling force.
• The cable puller exerts force on every component of
the cable pulling system, including the anchoring
systems and the support structures.
• Energy is stored in a rope when the load causes
the rope to stretch. Failure of the rope or any other
component can cause a sudden release of energy.
Replace any rope that is worn or damaged.
• Carefully select the number or wraps of rope around
the capstan before starting the pull.
• Control the pull by tailing the rope. Be familiar with the
interaction of the rope and capstan.
• Do not allow a rope overlap to develop.
Greenlee / A Textron Company
Ultra Tugger ® Cable Puller and Pulling Packages

Planning the Pull

• Pull in a direction that will require the lowest amount
• Plan several shorter pulls rather than fewer longer
• Locate the puller as close to the end of the conduit as
• Place each component so that the pulling forces are
• Select an anchoring system: adapter sheaves, which
• Verify that each component has the proper load rating.
• Inspect the structural supports. Verify that they have
• Make sure area is clear of bystanders, etc.
25
of pulling force.
pulls.
possible to minimize the amount of exposed rope
under tension.
used effectively.
are preferred, or the floor mount.
enough strength to withstand the maximum forces that
may be generated.
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