Troubleshooting - John Bean T7300 Manuel D'utilisation

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Trouble shooting

7.0 Troubleshooting

If a problem with the tyre changer is detected, proceed
in the following order to solve it:
1. Rethink about the last steps taken.
Did you work according to the manual instructions?
Did the unit work as described and expected?
2. Check the unit according to the instructions in this
chapter.
3. Call your local dealer for technical assistance.
The format of this section is:
Problem
1. Possible cause #1
• Possible solution(s)
2. Possible cause #2
• Possible solution(s)
When depressing the wheel support rotation pedal
the machine will not work.
1. No electric power.
• Check that the electric plug is correctly connected
to the mains and that the power supply is ON.
2. Switch or motor short circuited.
• Check that the electrical specifications of the
machine are the same of the power supply ones.
• Call the authorised service centre for assistance.
The wheel support pedal does not return to neutral
position.
1. Pedal spring broken.
• Bring the pedal back to the central position.
• Disconnect the machine from the power and air
supply.
• Call the authorised service centre for assistance.
Hard to operate wheel support and bead breaker
pedal.
1. Air valve stem dry.
• Check lubricator efficiency and oil level.
Bead breaker cylinder insufficient power during
bead breaking operation.
1. Low pressure.
• Clean valve.
• Check air pressure in the supply line.
2. Cylinder seals worn.
• Call the authorised service centre for assistance.