S
afety Guidelines and
Environmental Protection
Maintenance Manual for Crawler Crane
2.1.5 Instructions about maintenance work
Maintenance Manual doesn’t include information about how to carry out maintenance work. If in
need, please contact the customer service department of Zoomlion. Relevant safety
instructions for maintenance work are as follows:
a) Without permission, welding, combustion or grinding operation on the crane is prohibited.
Otherwise, there is danger to cause fire and explosion!
b) Clean the crane and remove the dust and flammable materials around before welding,
combustion or grinding operation and make sure enough ventilation. Otherwise, there is
danger to cause explosion!
c) Depressurize all pipelines or containers before demounting the fittings or disconnecting
the pipeline. Take preventive measures to protect personnel against injuries due to
escaping hydraulic oil or air under high pressure.
d) Without our permission, do not make any change, addition or modification to the crane.
Otherwise, the crane may be in danger. This is applicable for assembly, setting of safety
devices and valves, and welding of load-bearing components.
2.1.6 Notes for long-term storage
If the crane doesn’t work for a long time (more than 2 weeks), do the following in order to
maintain crane performance:
a) Clean the crane completely and check travel gear for functional work.
b) Apply lubricating oil on the components susceptible to corrosion.
c) Demount the battery, charge it fully and then store it well. Remove the grounding terminal
of battery.
d) Drain cooling water completely and hang a board “no water” on the engine. Cover a film on
the engine to prevent moisture.
e) Make an inventory of tools and store them well.
f) Run the crane once in a month without a load and at low speed in order to avoid excessive
wear due to film damage or rust. What’s more, pay special attention to the temperature
change on the lid of the diesel engine.
(1) After warming the crane, carry out traveling movements, slewing movements or
lifting movements repeatedly and continuously.
(2) Pay attention to the quality of the lubricant when running the machine again. Since
the lubricant may get worse due to lack of running.
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