Fig 3 The chain must not be twisted
In the event of faults or failures, the hoist must be repaired and carefully checked by a specialist before
reuse.
Continuous maintenance - lubrication
Oil the hook latches and bearings. Grease the pawl and ratchet and also the gear. Lubrication must be
sparingly and carefully applied so no grease gets on the brake disk. Oil the load chain for longer life.
Periodic checks
Periodic checks are normally carried out yearly to detect and
remedy any faults. If required (e.g. high frequency of use),
more frequent checks may be carried out. See “Checklist for
periodic checks”. Measure hooks and chain to detect any
changes in shape.
Checks on load/suspension hooks (see Fig. 4 and Table 1)
Opening dimension A on the hooks is important. A hook with
too large a maximum dimension has been exposed to
overloading or overheating. It therefore does not have the
necessary load capacity. The hooks may also have been
exposed to long-term wear (dimension B).
Hooks must be discarded and replaced if:
The maximum A value is exceeded (according to Table 1).
The minimum B value falls short (according to Table 1). Fig
4 Load/suspension hook
The hook shows signs of cracking.
The hook is deformed or otherwise damaged.
Defective hooks must be replaced before using the chain hoist again.
