Initial Operating Checks
CAUTION
•Ensure the hoist top hook is properly installed on the support member and the hook latch is engaged.
Operate the hoist with a test load (10% of rated capacity) by raising and lowering this load several times. Verify the brake operation by lowering the same load to check load does not slip when lowering stops.
NOTICE
•Each time a load is lifted, the operation of the load brake should be checked by raising the load slightly and stopping to ensure the brake will hold the load before proceeding to lift the load.
Familiarize operators and people responsible for hoist installation and service with ASME B30.16 specifications prior to placing the unit into service. All the requirements of this specification, including testing should be met before approving the hoist for operation.
OPERATION
The four most important aspects of hoist operation are:
1.Follow all safety instructions when operating the hoist.
2.Allow only personnel trained in safety and operation of this hoist to operate hoist.
3.Subject each hoist to a regular inspection and maintenance procedure.
4.Be aware of hoist capacity and weight of load at all times.
WARNING
•Hoist is not designed or suitable for lifting, lowering or moving persons. Never lift loads over people.
Hoist Operation
When facing hand chain side of hoist:
1.Pull down on the right hand chain (clockwise) to raise load.
2.Pull down on the left hand chain (counterclockwise) to lower load.
NOTICE
•The clicking sound of the pawl on the ratchet gear is normal when a load is being raised.
Slip Clutch Operation
Hoists are equipped with a slip clutch. When trying to lift a load that exceeds capacity of hoist the hand chain will rotate in the hoist body but the load will not be lifted.
It is important to keep the slip clutch properly adjusted. Refer to the “MAINTENANCE” section on page 8 for the proper procedure.
Storing the Hoist
1.Always store hoist in a no load condition.
2.Wipe off all dirt and water.
3.Oil the chain, hook pins and hook latch pins.
4.Hang in a dry place.
5.Before returning hoist to service follow instructions for “Hoists Not in Regular Use” in the “INSPECTION” section on page 5.
INSPECTION
WARNING
•All new, altered or modified hoists should be inspected and tested by personnel trained in safety, operation and maintenance of this hoist to ensure safe operation at rated specifications before placing hoist in service.
Frequent and periodic inspections should be performed on hoists in regular service. Frequent inspections are visual examinations performed by operators or service personnel and include observations made during routine hoist operation. Periodic inspections are thorough inspections conducted by personnel trained in the safety, operation and maintenance of this hoist. ASME B30.16 states inspection intervals depend upon the nature of the critical components of the hoist and the severity of usage.
Careful inspection on a regular basis will reveal potentially dangerous conditions while still in the early stages, allowing
corrective action to be taken before the condition becomes dangerous.
Deficiencies revealed through inspection, or noted during operation, must be reported to designated personnel trained in safety, operation and maintenance of this hoist. A determination as to whether a condition constitutes a safety hazard must be decided, and the correction of noted safety hazards accomplished and documented by written report before placing the hoist in service.
Records and Reports
Inspection records, listing all points requiring periodic inspection should be maintained for all load bearing equipment. Written reports, based on severity of service, should be made on the condition of critical parts as a method of documenting periodic inspections. These reports should be dated, signed by the person who performed the inspection, and kept on file where they are readily available for review.
MHD56391 - Edition 2 | 5 |
