Zoomlion ZT20J, Service And Maintenance Manual

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Figure 1-3 Beware of Explosion
The positive and negative wires of the battery must be removed when welding to prevent the positive
and negative poles of the welder from forming a loop with the vehicle body, thereby burning
electrical components such as controllers and sensors. The company does not take the consequences
for wrong operation.
It is forbidden to use the machine as a ground wire during welding.
a. Check or maintain the machine after the temperature has been lowered.
Contact with the components might cause burn hazard, as the temperature of components goes high
when the machine is running. These components include engines, mufflers, engine cooling water,
radiators, hydraulic oil, reducers, hydraulic kits and hydraulic accessories. These components or parts
should be allowed to cool down before starting inspection or maintenance.
Figure 1-4 Caution Hot
b. Pay attention to the installed position of parts when unloading. Technicians performing the
installation must be familiar with each part to ensure proper installation.
It is strictly forbidden to disassemble electronic components.
a. Do not allow tools or parts to fall into the inspection hole. Do not allow objects to fall into the holes