STT113 TOWER CRANE OPERATION AND SERVICE MANUAL
10B-4
. Maintenance
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Maintenance of wire rope depends on the purpose of tower crane, the working
environment as well as the kind of wire rope used. If possible, the wire rope should be
purged and oiled or greased
(except otherwise stipulated by the tower crane
manufacturer or the wire rope factory),
especially the bended and curved part of
the wire rope that reel through pulley. The kind and type of lubricating oil and grease
should be suitable with that used in the wire rope factory. For the wire rope, the lack
of maintenance is one of the primary reasons of short-life time, especially when the
tower crane works in a caustic environment or the wire rope can not be greased due to
some reasons caused by the limitation of the operation.
. Inspection
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1. Daily observing
It is recommended to observe all the visible parts of the wire rope every
working day so as to discover any damage or distortion in time. Pay special
attention to the part which is fixed on the crane, if any obvious change is
found, inform the person in charge to inspect it according to the fourth item
listed below.
2. Periodical
inspection by the person in charge
The following items should be taken into account in order to determine inspection
period and inspection cycle.
a.
National statute for hoisting machinery, such as
GB5144-2006
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Safety rules of
