Lovol TE Series - Page 72

Operating Instructions
S/N
Fault
symptom
Failure cause
Troubleshooting methods
3
Farm
implement
jittering
during
lifting, and
slow lifting
(1) Oil filter clogging
(2) The air enters the oil suction pipe.
(3) The gear oil pump fails.
(4) Hydraulic oil level excessive low
(1) Clean or replace the filter element
(2) Eliminate the air leakage at the joint and
O-ring.
(3) Replacement of gear oil pump
(4) Add the lubricating oil as required.
4
Frequent
"nodding"
after farm
implement
lifting, and
fast static
settlement
after engine
shutdown
(1) The distributor one-way valve is not
tightly sealed.
(2) The lowering valve is not tightly
sealed.
(3) The cylinder safety valve leaks or is
improperly adjusted.
(4) The cylinder piston O-ring is
damaged and leaks.
(5) The sealing ring between the
distributor or cylinder head and the oil
inlet hole of lifter housing is poorly
installed, falls off or is damaged.
(1) Clean the one-way valve, and face up it if
necessary.
(2) Clean or face up the lowering valve.
(3) Repair or readjust the cylinder safety
valve.
(4) Replace the O-ring
(5) Replace the sealing ring
5
Sharp sound
from the
distributor
when the
handle is in
the lifting
position.
(1) The adjustment is incorrect, the inner
lifting arm is used to lift the lifter housing
to open the safety valve.
(1) Firstly, measure the lifting height of farm
implements at this time, and then readjust and
shorten the force and position adjusting rod
so that the highest lifting position is lower
than the original position.
6
No
hydraulic
output or
weak output
of cylinder
head
(1) The oil inlet line of oil cylinder is not
cut off.
(2) The front cone of lowering speed
control valve and the taper hole are not
tightly sealed.
(1) Tighten the lowering speed control
handwheel clockwise.
(2) Face up and repair the front cone of
lowering speed control valve and taper hole,
or replace the lowering speed control valve.
62