TELELIFT 3713 SX
TROUBLESHOOTING
5
1
Document 57.4402.9200 - 1
st
Edition 10/2006
INDEX
Problem
Cause
Solution
Poor parking brake action
The stabilisers do not work
The machine does not steer
The boom does not move
Tension the cables and check the
relevant clamps.
Check the control lever and replace if
necessary
Check cylinders and their internal
seals.
Check the valves are in efficient working
order and the internal pistons slide
correctly.
Check the elements of the Walvoil main
valve.
Check the operation of main gear
pump.
Check the priority valve and replace if
necessary.
Check power steering is in efficient
working order and verify the pilot
activates the priority valve of pump. If
necessary change the power steering.
Check cylinders and their internal
seals.
The pump doesn’t deliver oil. Check and
replace if necessary.
The pump priority valve is clogged or
damaged; remove, check its seals and
refit or change the valve.
Check the solenoid valve of main valve
is in efficient working order.
Check the pressure relief valve is in
efficient working order, eliminate any
foreign matters which may hinder a
proper operation.
Loose cables.
Brake control lever in the cab damaged.
Stabilisers
cylinders damaged.
Problems to the cylinder block valves.
Main valve defective.
Main boom pump damaged.
The priority valves doesn’t select the oil
delivery.
Power steering damaged.
Problems with the axle cylinders.
Main gear pump damaged.
Priority valve defective.
Main valve damaged.
Pressure relief valve of main valve
damaged.
Summary of Contents for Telelift 3713 SX
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