Zoomlion ZCC2600 User Manual

T
roubleshooting
Maintenance Manual for Crawler Crane
No. Troubles Causes Solutions
4
No slewing
movements are
performed.
1. The shutoff valve of oil
suction pipe is not opened.
1. Open the shutoff valve.
2. The slewing valve
malfunctions.
2. Check and adjust the
overflow pressure of slewing
valve.
3. The slewing pump fails. 3. Check and repair the
slewing pump, or change it if
necessary.
※
4. The slewing brake is not
actuated.
4. Check if the pressure is
output from slewing brake
solenoid valve.
※
5. The fuse of controller fails. 5. Change the fuse.
6. The circuit is out of order. 6. Check if the brake is
electrified. And change the
circuit if necessary.
7. The slewing control lever
fails.
7. Change the control lever.
5
The slewing
movements are
performed weakly.
1. There is leakage at the
inside of slewing motor.
1. Check and repair the motor,
or change it if necessary.
2. The crane is overloaded. 2. Reduce the load. ※
3. The valves and oil pipeline
of slewing hydraulic system are
blocked.
3. Clean the oil pipeline and
valves.
6
No traveling
movements are
performed or the
traveling movements
are carried out weakly.
1. The traveling resistance is
large.
1. Reduce the traveling speed.
2. The central revolving joint or
oil pipeline of travel gear
hydraulic system is blocked.
2. Clean the central revolving
joint or oil pipeline of travel
gear hydraulic system.
3. The traveling motor leaks oil. 3. Check and repair the motor,
or change it if necessary.
※
4. The hydraulic pump fails. 4. Check and repair the main
pump, or change it if
necessary.
※
5. The quick-release coupling
is not screwed tightly.
5. Tighten the coupling with
special wrench.
※
6. The fuse of controller fails.
6. Change the fuse.
7. The control lever fails.
7. Change the control lever.
8. The circuit of pump unit is
out of order.
8. Check the circuit.
5-8

Zoomlion ZCC2600 Specifications

General

Brand	Zoomlion
Model	ZCC2600
Category	Construction Equipment
Language	English