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27
TROUBLE SHOOTING
1. Cloth clamp doesn’t lock/unlock
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Is the main switch switched on?
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Is the foot switch connector inserted into control box?
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Is the emergency button on?
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Is the cloth feed table raised (safety interlock is on)?
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Is the sensors broken?
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Is the sensor connecting wire broken?
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Check the sensor wire.
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Is the cloth clamp motor broken?
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Is the driver for cloth clamp broken?
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Is the CPU circuit board broken?
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Is the cloth clamp motor timing belt breakage?
2. Machine does not start or stop
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Is the main switch switched on?
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Is the main motor timing belt breakage?
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Is the main connector inserted into connector box?
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Is the emergency button on?
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Is the cloth feed table raised (safety interlock is on)?
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Check each sensors?
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Is the main motor or inverter broken?
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Is the CPU circuit board broken?
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Is the main motor broken?
3. Feed table doesn’t move or stop
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Check the sensor for feed table, sensor position or lead wire of it.
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Check the driver for table motor, motor lead wire or motor.
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Is the timing belt for the feed table breakage?
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Is the motor for feed table motor broken?
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Is the CPU circuit board broken?
4. Knife doesn’t work or stop
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Check the sensor for knife, sensor position or lead wire of it.
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Is the sewing selection knob set as “S/O” position?
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Is the main motor or inverter broken?
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Is the timing belt for the knife breakage?
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Is the CPU circuit board broken?
5. Sewing doesn’t normally finish
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Check all sensors, position or lead wire of them.
6. Trouble of foot switch
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Check inside of switch for each foot pedals or lead wire.
7. Emergency button is locked
a) Switch off the main switch, and switch on it again.
b) Press both foot switches.