Zoomlion ZT20J, Service And Maintenance Manual

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1-3
down at any time if necessary, and others can conduct inspection or maintenance. Personnel should
keep close contact to work safely.
b. Clean the aerial work platform before inspection or maintenance. The dust or debris on the aerial
work platform not only makes the faulty components or parts difficult to find, but also can be mixed
into the components or parts during operation.In addition, dust or mud can cause injury to the eyes
or make the floor slippery that results in injury.
c. When cleaning the machine with a high-pressure water gun, it is forbidden to directly align the
electrical control box and the connector, otherwise it will cause an electrical short circuit.
It is strictly forbidden to align water or water jets with electrical components! Otherwise there is
danger of electric shock!
Figure 1-2 Mind Electric Shock
1.2.2 Precautions in maintenance
a. Prevent fire
1) Use non-flammable cleaning fluids for parts and components cleaning.
2) Store fuel and grease items away from flames or sparks.
3) No smoking.
4) Do not allow flames or sparks to get close to flammable objects.
5) Have a fire extinguisher and understand how to use it.
6) Use explosion-proof lights when checking fuel, oil and battery fluids.
7) Keep flammable objects away from flying sparks or molten metal during grinding or welding.
b. Only trained technicians could conduct welding and repairing for Welding and repair of every part
of the aerial work platform.