23•
TROUBLE SHOOTING
24
PROBLEM
I=Insufficient lifting and
excavation capacity.
Double Acting valve
without floating
position.
The control lever is hard
to manoeuvre.
The loader does not
keep load up when the
valve is in neutral
position.
NOTA there is always a
minor internal leakage.
The loader works very
slowly or stops.
Oil leakage in the
cylinder.
Oil leak at the valve
spools.
The tipping does not
hold the lift load.
Unusual wear of the
bucket blade.
Difficulty in attaching
or detaching the loader.
Difficulty in attaching
the tool.
3
rd
function does not
work.
Off cantered loader.
CAUSE
Oil pressure too low.
Damaged hydraulic pump.
Control lever inverted.
Valve incorrectly connected.
Control cables incorrectly adjusted.
Control cables too short or jammed.
Oil leakage in the security valve
(tipping).
Damaged valve spool.
Leakage in the selector.
Cylinder leaking.
Too little oil in the circuit.
Damaged or incorrectly connected
quick coupling.
Faulty hose connection.
Too little oil flow.
Damaged seals.
Damaged piston rods.
Damaged cylinder body.
Defective welding.
Defective seals.
Adjust the security valve.
Excavation 225 bars.
Tipping 140 bars.
Wrong working method.
Floating position non existent or badly
positioned.
Stand askew.
Hooks on the tools are incorrectly
positioned.
Fuse dead.
Bad electrical connection.
Short circuit.
Out of shape arm.
Sub frame out of shape.
SOLUTION
Check oil pressure before and after
valve.
See valve assembly instructions.
Check assembly, curve angle too
short.
Lubricate with fluid oil.
Risk of freezing.
Check each element one after
another.
Fill up the oil level.
Check the coupling.
Change the fitting.
Connect using colour marking.
Control tractor hydraulics.
Replace the seals checking that other
parts are not damaged.
To order seals, indicate the loader se-
rial number.
Change seals.
Check the return pipe to tractor.
Adjust using a manometer.
Check the valves.
Use the floating position.
Work in simple effect.
See chapter Switching from double to
single effect.
See chapter attachment and
detachment.
See chapter attaching tool.
Check plugs and connections.
Check fuses.
Wires cut.
Exchange of the arm.
Exchange of the sub frame.
