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Cranes, hoists, and elevators are important to operation and maintenance of the
facility. Proper maintenance of cranes and hoists will ensure they are ready for
service which will reduce time and cost of maintaining other equipment. Maintaining
elevators is important to the convenience and safety of staff, visitors, and the public.
Also, elevators must be inspected periodically by a certified elevator inspector.
Maintenance of these types of equipment is important to the safety of everyone.
Mechanical maintenance of cranes, hoists, and elevators is covered in FIST
Volume 4-1A, Maintenance Scheduling of Mechanical Equipment. Only the electrical
components are covered here.
Maintenance or Test
Recommended Interval
Reference
Inspect motors, controls, wiring
Annually
PO&M Bulletin No. 19
Electrical drawings, especially control and protection schematics and wiring diagrams,
are the most important references for ongoing O&M of a facility. Ideally, these
drawings will be kept current with all modifications and replacements to plant
equipment. Every effort must be made to keep key electrical drawings up to date to
avoid risk to equipment and staff. Key electrical drawings should be accessible to all
O&M personnel.
Maintenance or Test
Recommended Interval
Key control and protection schematics
Current and available
Key wiring diagrams
Current and available
1-line, 3-lines, tripping, switching diagrams
Current and available
Relay data sheets
Current and available