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CHECK LIST FOR TROUBLESHOOTING
Check the items in the following flowchart in order from the top to bottom. Description of
each item is referred to CIRCUIT DIAGRAM.
∙ After corrective action, return to the start of Troubleshooting and re-check again.
∙ The machine settings using App. should be checked with factory manufactured condition.
If the machine is used App and cannot change the settings, replace "Controller" or "USB
Circuit".
How to follow arrows
Yes
No
Symptom
Corrective action
What to check
Occasionally no rotation
Clutch does not work.
Poor torque precision
Rotating even if Clutch works.
Abnormal noise
Absolutely no rotation
See page 22.
Check if LED job light, Buzzer and LED
indicator work properly when the battery is
inserted.
LED job light, Buzzer and LED
indicator do not work properly.
Remove Gear assembly, and then see whether
Motor rotates independently.
Slow rotation
LED job light does not light up when the
battery is inserted.
Buzzer does not beep when the battery is
inserted.
LED indicator (red/green) does not light up
when the battery is inserted.
Note: Be sure to connect Motor bracket to Rotor.
Note: Be sure to connect Motor bracket to Rotor.
Remove Gear assembly, and then check if
Motor makes abnormal noise.
See page 22.
See page 23.
See page 23.
See page 24.
See page 24.
See page 24.
See page 22.
See page 25.
See page 26.
See page 26.
See page 26.
See page 26.
