Zoomlion RT60 Maintenance And Service Manual

Edition 2 Chapter 2 Page 2-3
Feb/2013 Troubleshooting
2.2 HYDRAULIC SYSTEM
Table 2-2
Part Problem Cause Remedy
Electrical System
System pressure does not
increase
a) The fluid level in the
hydraulic tank is too low
b) Blockage in the relief valve
c) Central revolving joint
leaks
d) The pressure gauge is not
accurate
e) Hydraulic oil is too old
(decomposed) or dirty
Add hydraulic oil
Clean the valve
element
Inspect the joint and
seal ring
Repair or replace
Replace oil and filter
Hydraulic pump makes
unusual noises
a) The fluid level in the
hydraulic tank is too low
b) Air is in the suction union
c) Mounting bolts loose
d) Hydraulic oil is too old
(decomposed) or dirty
e) Drive shaft shaken
f) Universal joint worn
g) Hydraulic pump defective
Add hydraulic oil
Repair the seal ring
Tighten bolts
Replace oil and filter
element.
Repair
Replace
Replace
Hydraulic pump unusually
hot
a) The fluid level in the
hydraulic tank is too low
b) Hydraulic oil is too old
(decomposed) or dirty
c) Hydraulic pump defective
d) Radiator defective
e) Temperature of the
hydraulic system is too
high
Add hydraulic oil
Replace oil and filter
Repair or replace
Examine
Decrease the
temperature manually
or stop the engine

Zoomlion RT60 Specifications

General

Brand	Zoomlion
Model	RT60
Category	Construction Equipment
Language	English