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Maintenance Manual for Crawler Crane
4.18 Inspection and maintenance under special working
environments
4.18.1 Working in mud, snow and rain
a) Check whether various kinds of plug and pin are loose before operation.
b) After the operation, clean the machine. Check whether the bolts and nuts are loose. Put oil
and grease into it.
4.18.2 Working at seaside
a) Before operation, check whether various plug and pin are loose, grease the rusty part,
especially the connecting rod, control lever and so on.
b) After the operation, clean the salt on the machine, grease the rusty part and prevent the
electrical parts from rusting.
4.18.3 Dusty environment
a) Air filter: clean the filter cartridge and dust collector in advance.
b) Radiator: clean the central part of the radiator frequently to prevent it from being clogged.
c) Fuel equipment: clean the fuel filter in advance.
d) Electrical members: clean the surface of starter and sensor carefully.
4.18.4 Environment with many rocks
The tension of crawler is very slack in this circumstance. At this time, check the travel gear for
damage, cracks, wear and scratch. And check the bolt and nut for tight fit.
4.18.5 Environment with falling rocks
The operator’s cab should be equipped with protective cover.
4.18.6 Cold environment
Use lubricant with good and light adhesiveness. The battery should be charged in advance.
4.18.7 Other working environment
Since the wear and tear of pulley block fitted respectively on A-frame and slewing table, and
other rope pulleys on the crane are different, check them for wear every day, and change them
in time.
When installing the track roller after it is maintained, change the direction to extend the service
life of the guide rail.
4-97
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