Corghi ERCO Serie Manual De Uso página 127

T :
rouble
The lift does not lower
when the DOWN button is
pressed
Platforms do not stop in
standing position
The lift does not lower
smoothly (jerky motion)
Lifting is not synchronised
The lift does not stop at
safety height
The motor does not stop
when the lift reaches
maximum height
P
The down solenoid valve
does not work properly
Locking solenoid valve is
jammed
The DOWN button is faulty
Electric board does not
operate properly
The lowering and locking
solenoid valves stay opened
Leakage in at least two
hydraulic pipelines
Two hydraulic cylinders at
least are faulty
Air in the hydraulic system
Leakage or air in the
hydraulic system
The encoder does not work
correctly
The encoder does not work
its
correctly
:
ossible cause
S :
olution
Verify if it is powered and
check its magnet for
damage (replace if
disconnected or blown).
Verify if it is powered and
check its magnet for
damage (replace if
disconnected or blown).
Replace the button.
Replace the board.
Verify that solenoid valve
sliders are not blocked.
Check connections for
proper tightening and tubes
for damage (replace if
damaged).
Check and replace if
necessary.
Bleed the hydraulic system.
Bleed the hydraulic system.
Check encoder calibration;
check proper encoder
fastening; check encoder
operation and replace it if
needed.
Check encoder calibration;
check proper encoder
fastening; check encoder
operation and replace it if
needed.
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