Zoomlion ZT20J, Service And Maintenance Manual

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Figure 5-8 Counterweight disassembly diagram
Tilt hazard
The steps of removing the boom include removing the counterweight. Failure to remove the
counterweight before removing the boom assembly may cause the device to tip over. Therefore,
P
lease do not remove the boom assembly without removing the counterweight.
Tilt hazard
When installing the boom, the boom assembly should be assembled first, followed by the
counterweight, otherwise the equipment may tip over, causing the risk of personal injury and
equipment loss.
Tilt hazard
The counterweight plays a vital role in the stability of the equipment.After the boom assembly is
installed, if the weights are incorrectly assembled, there will be a risk of instability and tipping of
the equipment, causing personal injury and property damage.
Risk of personal injury or death
The disassembly of the boom assembly requires personnel with specialized maintenance skills, lifting
equipment and a suitable plant. Without special skills and special tools, disassembly of the boom may
cause personal injury or serious damage to the equipment. Repair of the boom system must be done by
after-sales service.
a. Insert the locking pin to prevent the turntable from turning.
Counterweight
lifting point