Maintenance
Maintenance Manual for Crawler Crane
4.12.4 Pulley lubrication
Figure 4-37 Sectional view of metal pulley
Figure 4-38 Sectional view of nylon pulley
Metal pulley is mainly used for load hook.
Nylon pulley is mainly used for crane and pulley block on the boom frame.
There are two oil filling nozzles on the pulley symmetrically. Wipe the nozzles clean before
lubricating the pulley. Inject the lubricating grease into the nozzles alternately via oil gun until
the fresh grease flows out of the spindle end face.
Oil filling nozzle
Oil passage
Spindle
Oil filling nozzle Oil passage Spindle
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