1910.179(m)(2)
Other ropes. All rope which has been idle for a period of a month or
  more due to shutdown or storage of a crane on which it is installed shall be
  given a thorough inspection before it is used. This inspection shall be for all
  types of deterioration and shall be performed by an appointed person whose
  approval shall be required for further use of the rope. A certification record
  shall be available for inspection which includes the date of inspection, the
  signature of the person who performed the inspection and an identifier for the
  rope which was inspected.

According to a study published by the National Institute for
  Occupational Safety and Health of the Center for Disease Control and
Prevention,  the Center for Construction Research and Training reports that side
pulling is  one of the 13 most common ways people are killed or injured while
using  cranes. But what is side pulling and why is it so dangerous?


OSHA  defines side pull as “the hoist pull acting
horizontally when the hoist lines  are not operated vertically” in their report
on overhead and gantry cranes,  In other words,
the crane is used to “tow” a load that  is not lined up properly to get it into
position. Side pulling purposely is  extremely dangerous unless the crane is
stable and the load is small. In the  vast majority of cases, side pulls should
not be used, even if the process could  save some time. Using a crane to move
even a small load horizontally can be  fatal. If you are going to operate a
crane while on the job, it is important to  understand how to use one properly,
and if you are an employer who owns cranes,  it is crucial that you provide on
the job training for your employees, not just  to teach about side pull, but
also to help them understand all aspects of crane  safety.
YOU CAN READ THE FULL ARTICLE HERE http://www.anapolschwartz.com/practices/construction-accidents/crane-accidents/side-pull-problems.asp

HAPPY EARLY 4TH OF JULY FROM AMERICAN INDUSTRIAL REPAIR.