Zoomlion FE10 User Manual

Instruction for use of the forklift with the triple pivot battery
24
4.4.6 Hydraulic system fault diagnosis
If there is a fault in the hydraulic system, the causes should be identified according to the following table and
repair as necessary.
(1) Multi-way valve
fault
Causes
Repair method
The pressure of lifting oil line
cannot increase
The oil valve is stuck
Cleaning after disassembly
Oil hole is clogged
Cleaning after disassembly
The shock pressure increases
slowly
The slide valve is stuck
Cleaning after disassembly
Insufficient exhaust
Adequate exhaust
The pressure of steering oil line is
more than the specified value
The slide valve is stuck
Cleaning after disassembly
Oil hole is clogged
Cleaning after disassembly
Failed to reach the specified oil
amount
Improperly adjusted overflow valve
Adjustment
Noise
Improperly adjusted overflow valve
Adjustment
The sliding face is worn
Replace the relief valve
Oil leakage (external)
O ring is aged or damaged
Replace the O-ring
Low setting pressure
Spring ring
Replace the spring
The surface of valve seat is damaged
Adjust or replace the relief valve
Oil leakage (internal)
The surface of valve seat is damaged
Amend the surface of valve seat
High setting pressure
The valve is stuck
Cleaning after disassembly
(2) Oil pump
fault
Causes
Repair method
Few oil discharge
Low level in the oil tank
Refuel up to the specified amount
Oil pipe or filter is clogged
Clean or replace as needed
The pump pressure
is low
The lining board is damaged
The support is damaged
The seal ring, bushing seals or check ring
are in poor condition.
Replace
The relief valve is improperly adjusted
A pressure gauge should be used to adjust the
relief valve pressure to the specified value
There is air in the system
Retighten the oil pipe at the suction side
Refueling
Change oil seal of oil pump
Noise is produced
only once in
The oil suction pipe is damage or oil filter
is clogged
Check the pipes or maintain the oil filter.

Zoomlion FE10 Specifications

General

Brand	Zoomlion
Model	FE10
Category	Forklifts
Language	English