Product Manual

16
15.0 Inspection and maintenance
All repairs and adjustments are to be performed by qualified persons using
procedures that are approved for the hoist system being serviced. All safety-related deficiencies
discovered in the inspection are to be corrected before hoist is placed back into service. Check for
internal damage whenever external damage has occurred.
Read and follow all relevant ANSI Inspection and Maintenance standards, particularly ANSI/ASME B30.16
Overhead Hoists (Underhung). Know the meaning of Frequent Inspection, Periodic Inspection, Normal Service,
Heavy Service, and Severe Service. It is the customer’s responsibility to understand and follow all ANSI and
JET inspection and maintenance instructions.
The following definitions are based upon ANSI/ASME B30.16.
Normal Service: Operation with randomly distributed loads within the rated load limit or uniform loads less
than 65% of rated load for not more than 25% of the time.
Heavy Service: Operation within rated load limit, which exceeds normal service.
Severe Service: Normal or heavy service with abnormal operating conditions.
Designated Person: A person selected or assigned as being competent to perform the specific duties to
which he/she is assigned.
Qualified Person: A person who, by a recognized degree or certificate of professional standing, or who,
by extensive knowledge, training, and experience, has successfully demonstrated the ability to solve or
resolve problems relating to the subject matter and work.
Avoid potential shock hazard. The inverter contains high voltage elements that may
briefly retain charge after powering down. Do not perform any mechanical or electrical maintenance on
the hoist for at least five minutes after hoist is disconnected from power, to allow de-energizing of the
capacitor.