Operation Description
(3) Gear oil pump failure
(4) Hydraulic oil level is too low
(3) Replace the gear oil pump
(4) Add lubricating oil according
to the requirements
Farm implements
slowly drop after being
lifted, and the descent
becomes faster after
turning off the engine
(1) The tightness of the check valve in the
hydraulic flow hydraulic flow distributor is poor
(2) The lowering valve is not sealed tightly
(3) The oil cylinder safety valve leaks oil or is
not adjusted properly
(4) The O-ring for the oil cylinder is damaged
or leaking
(5) The seal ring between the distributor or the
cylinder head and the oil inlet hole on the
3-point lifter shell is improperly installed or
damaged
(1) Clean the check valve.
(2) Clean or replace the
lowering valve
(3) Repair or readjust the safety
valve on the oil cylinder
(4) Replace the O-ring
(5) Check and replace the
seal ring
With the 3-point lift
lever at lifting
position, the hydraulic
distributor makes a
loud noise
(1) Because of improper adjustment, the inner
lifting arm props against the lifter case to open
the safety valve
(1) First measure the lifting height
of the farm implement.
Then readjust and shorten the
force/position adjusting rod to
make the highest lifting position
lower than the original position
The 3-point hitch has
no hydraulic pressure
or weak output
(1) The oil cylinder inlet line has
been disconnected
(2) The front cone and conical hole of the speed
lowering control valve have not been
sealed tightly
(3) Lifter is in the neutral lifting position
(1) Tighten the lowering speed
adjustment knob clockwise to
reduce the lowering speed
(2) Replace the valve
(3) Push the lifter control handle
to the lowering position to lower
the outer lifting arm to the lowest
position. Shut off the inlet oil line
to the oil tank, and then put the
operating lever in the lift position
Hydraulic cylinder lifts
slowly or not at all
(1) Inner leakage from relief valve
(2) Low oil pump output
(1) Clean and readjust or replace
relief valve
(2) Replace the oil pump
No oil pressure in the
3-point lift
(1) Pressure in relief valve is too low
(2) Oil leakage in the system
(3) Oil pump malfunction
(1) Replace the relief valve or the
hydraulic oil
(2) Find and repair leaks
(3) Repair or replace oil pump
Oil leaks around
front differential
housing or rear
differential housing
(1) Replace the leaking seal ring
To Next Page
Loading...
