EP Equipment LIST JX0, Руководство по обслуживанию

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REV. 07/2019
TROUBLESHOOTING
9
164
Table 9.1 Troubleshooting of Common Faults (continued)
Fault Fault Symptom Troubleshooting Order * Troubleshooting Measures
3. The paltform cannot
be lowered a. Solenoid valve or its circuit
connection failure
b. Lowering switch or its circuit
connection failure
c. Valve failure;
d Cylinder deformation or blocked
e. Explosion-proof valve blocked
f. the area is occupied(e.g. by an
object or person.
(see Section 7.6)
4) Clean or replace the valve;
(see Section 7.8);
5) Replace the explosion-proof
valve (see Appendix A)
4. The storage table
cannot be lowered
a.its circuit connection failure
b.The push rod failure
1)Check AUX pump motor
（
see
Section 7.4
）
2)Replace the push rod
（
see
Section 7.4
）
Lift Failure 5. Slow Lifting of
Vehicle
a. Overload
b. Hydraulic pipeline leakage
c. Valve failure:
Gear pump wear, internal
leakage occurs
Insufficient relief valve pressure
or blocked
1) Refer to the rated capacity
marked on the nameplate;
2) Check the pipe and hydraulic
components for oil leaks;
3) Wash or replace the valve
body
(see Section 7.2.2)
6. Slow Lowering of
Vehicle
a. Solenoid valve blocking
b. Valve body failure: throttle valve
failure or blocked
1) Wash or replace the solenoid
spool (see Section 7.5)
2) Wash or replace the valve
body (see Section 7.2.2)
7. Unstable Lifting /
Lowering of Vehicle
a. Chain loosening;
b. Poor lubrication between steel
channel and rollers;
c. Improper adjustment of rollers,
or blocked;
d. Accumulator failure;
1) Slack chain switch failure;
(see Section 8.4)
2) Check if the steel channel
grease is normal, clean and
re-
lubricate steel channel and
rollers;
3) Adjust the side roller spacing
through roller screw; or
replace
the roller;
4) Replace the accumulator.
8.Storage table cannot
lift/lower
a.Aux pump motor failure 1) Replace the Aux pump motor.
* Carry out trouble shooting in accordance with the order listed
in the table, it can help you quickly identify problems and
resolve accordingly.