Test the Breaker Switch

The breaker switch is at the left rear corner of the machine. The breaker switch should be tested at installation, and then inspected, cleaned, and tested at least once a year after that.

• After prolonged use, if you see the breaker switch covered with soot, this could indicate that the switch has malfunctioned or been damaged.
• To prevent damage to the breaker switch, installation of a voltage stabilizer (constant voltage transformer) is recommended for work sites where there is significant fluctuation in the AC power source.

1. Confirm that the main machine is connected to its power source.

2. If the machine is on, press the operation power switch [A] and turn it off.

   

   Do not touch the main power switch [B] behind the left front door. This switch must remain in the on position for the breaker switch test.

   

3. To test the breaker switch:
   
   • [1] is the normal position of the breaker switch test button.
   • Use the tip of a small screwdriver or pen to push the breaker test button. The breaker switch should flip to the "O" position [2]. This indicates that the breaker switch is operating normally.
   • If the breaker switch does not flip to the "O" position, the switch must be replaced.
   • Push the switch up to the "|" position [3] for normal operation.