John Bean T 8058 Manuel D'utilisation page 70

70
Trouble shooting
Pump motor does not turn but the chuck motor
operates normally.
1. The thermal safety switch protecting the hydraulic
motor is/was activated.
• Disconnect the machine from electric supply. Open
the electric cabinet and reset the thermal safety switch.
THIS OPERATION CAN BE PERFORMED ONLY BY
QUALIFIED PERSONNEL.
The thermal switch that protects the pump motor
is very easily activated.
1) Electric outlet wires not fixed correctly
•
Check the outlet
2) The voltage of the electric line is too low.
• Check voltage on electric supply.
THIS OPERATION CAN BE PERFORMED ONLY BY
QUALIFIED PERSONNEL.
The circuit breaker is very easily activated.
1) Electric outlet wires not fixed correctly
•
Check the outlet
2) The machine is not stable on the floor.
• Check that the machine is securely bolted to the
floor.
3) The electric cabinet is not firmly attached.
• Attach the electric cabinet firmly.
4) The voltage of the electric line is too low.
• Check voltage on electric supply.
THIS OPERATION CAN BE PERFORMED ONLY BY
QUALIFIED PERSONNEL.
The transformer protection fuses easily blow.
1) Short circuit in the electric cord connecting the
portable control unit to the electric cabinet.
• Call the authorized service center for assistance.
Operator's Manual John Bean T 8058