6. OPERATION........................................................................................................................................ 31
6.1 Intended purpose of hoist operation................................................................................................ 31
6.2 Safety working environment........................................................................................................... 31
6.3 Electric chain hoist.......................................................................................................................... 31
6.4 Electric chain hoist with motorized trolley..................................................................................... 32
6.4.1 Operation.................................................................................................................................. 32
6.4.2 Precautions in usage................................................................................................................. 33
7. MAINTENANCE ................................................................................................................................. 34
7.1 Lubrication...................................................................................................................................... 34
7.1.1 Gear lubrication........................................................................................................................ 34
7.1.2 Load chain lubrication ............................................................................................................. 34
7.2 Chain replacement........................................................................................................................... 34
7.2.1 Single fall chain ....................................................................................................................... 35
7.2.2 Double falls chain .................................................................................................................... 35
7.3 Inspection........................................................................................................................................ 37
7.3.1 Inspection classification........................................................................................................... 37
7.3.2 Daily inspection ....................................................................................................................... 37
7.3.3 Periodic inspection................................................................................................................... 37
7.3.4 Occasionally used hoist............................................................................................................ 37
7.3.5 Inspection record...................................................................................................................... 38
7.3.6 Inspection procedure................................................................................................................ 38
8. TROUBLESHOOTING........................................................................................................................ 50
9. WARRANTY........................................................................................................................................ 51