TROUBLESHOOTING
This section provides basic troubleshooting information. Specific causes to problems are best identified by thorough inspections performed by personnel instructed in safety, operation and maintenance of this equipment. The chart below provides a brief guide to common hoist symptoms, probable causes and remedies.
MAINTENANCE |
WARNING
•Never perform maintenance on the hoist while it is supporting a load.
•Before performing maintenance, tag hoist:
DANGER - DO NOT OPERATE -
EQUIPMENT BEING REPAIRED.
•Only allow personnel trained in operating and servicing this product to perform maintenance.
•After performing maintenance on the hoist, test unit to 125% of its rated capacity before returning to service. Testing to 150% of rated capacity might be required to comply with standards and regulations set forth in areas outside of the USA.
Installing New Load Chain
NOTICE
•Do not remove the old load chain from the hoist. The old load chain can be used to install the new load chain.
WARNING
•To prevent a falling load which can cause death, injury or property damage the hook (38) must be on left fall of load chain (43) and right fall must be attached to hoist body with end anchor (21 and 22). Right and left are designated when viewed from the hand chain side of the hoist.
1.Remove end of load chain from end anchor (21 and 22).
a.1/2, 1,
b.3 and 5 ton units are double chain fall hoists. The load end of the load chain (43) is anchored to the top hook assembly (37). To disconnect the load chain from the top hook assembly (37) remove chain bolt (39) and
2.Make a “C” link in new load chain by grinding through one side of the end link (refer to Dwg. MHP0016). To avoid twisting, the load chain on 3 and 5 ton units must have an odd number of links, not counting the “C” link.
3.Using a “C” link, join the old load chain to the new load chain. (If the old load chain was installed correctly, the “C” link assures end link of new load chain will be correctly reeved through the hoist.) Be sure welds of “standing” links on the new load chain are facing away from the hoist load sheave(s) (6). Refer to Dwg. MHP0042.
(Dwg. MHP0042)
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