Corghi HD 900, Operator'S Manual

Page: 67 / 182

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- Operator's manual HD 900 67
UK
TROUBLESHOOTING
After switching the main switch
located on the electric control
unit, the main indicator light will
remain off and the controls will
not work.
No current
• No current, provide power.
After switching the main switch,
the main indicator light will turn
on but the hydraulic power unit
motor and/or turntable rotation
motor will not work.
The thermal magnetic switch that protects the
motor was activated.
• Open the electrical board, move the main
switch to 0, then reactivate the overload cut
motor protector using the switch (
A, fig.43 );
when complete, reclose the electrical board.
Fuses blown
• Open the electrical board, moving the main
switch to 0, then recheck the primary of the
transformer fuses and replace them if neces-
sary (
B, fig.43
); when complete, reclose the
electrical board.
The pressure gauge indicates
pressure below 130 bar ±5% and/
or there is a slowing down of the
tyre changer movements, as well
as low power.
The oil in the power unit is below the minimum
level.
• R efer to the “MAINTENANCE” paragraph to
top up the oil.
The hydraulic power unit motor
starts but the machine does not
perform any commands.
• Check the rotation direction of the hydraulic
power unit motor.
WARNING
If, in spite of the above mentioned indi-
cations the tyre changer does not work
properly, do NOT use it and contact your
technical assistance centre.
WARNING
The “Spare parts” handbook does not
authorise users to carry out work on
the machine with the exception of those
operations expressly described in the
user manual. It only enables users to
provide the technical assistance service
with precise information in order to
minimise delays.
43
A B