Troubleshooting - Corghi ERCO 500 Manual De Uso

10 CHAPTER 10 - TROUBLESHOOTING
A list of possible troubles and solutions is given below
T :
ROUBLE
The lift does not work
The lift does not raise
The lifting capacity is not
sufficient
The lift does not lower when
the DOWN button is pressed (
without load)
The lift does not lower when
the DOWN button is pressed
Electrical system
P
OSSIBLE
The main switch is not turned
on
There is no power
The electrical wires are
disconnected
Fuses are blown
Printed circuit board does not
operate properly
The motor direction of rotation
is not correct.
The oil in the hydraulic unit is
not sufficient.
The UP button is faulty.
The lowering valve does not
close.
The suction pump filter is
dirty.
The pump is faulty
Oil leakages in hydraulic
circuit
Exceeding oil into hydraulic
circuit
The lowering solenoid valve
does not work properly
Locking solenoid valve is
jammed
The DOWN button is faulty
Printed circuit board does not
operate properly
 a check of the electrical system to verify that
control desk motor, limit switches and control
panel operate properly must be carried out by
skilled electricians

C :
AUSE
S :
OLUTION
Turn the switch on
Check Power on to restore if
necessary
Replace
Replace
Replace the printed circuit
board
Interchange the two phases on
the main switch
Add some hydraulic oil
Check UP button and
connection for proper
operation. Replace, if needed
Check and clean, if dirty, or
replace, if faulty
Check and clean if needed.
Check the pump and replace, if
needed.
Check the circuit for any
leakage
Push lowering button and
discharging button
simultaneously
Verify if it is powered and
check magneto for damage
(replace if disconnected or
blown).
Verify if it is powered and
check magneto for damage
(replace if disconnected or
blown)
Replace the DOWN button
Replace the printed circuit
board
73