Symptom/Panel Display
Causes
Measures
Air pressure is decreased when
Eliminate the cause and check the
Torque displayed on the panel
operating.
air compressor or others.
does not reach the pre-set
Check the pre-set torque and re-set
torque. ( *1 )
The torque can be set incorrectly.
the value again.
Main Unit
Reaches to the pre-set torque
Abnormality on the thread surface Replace the nut/bolt with new one.
and stops automatically before
(due to seizure of thread or others)
the nut/bolt is bottomed out.
Even though the throttle lever is
Batteries are not inserted.
Insert batteries.
pressed, the spindle slowly rotates
in the reverse direction against the Batteries are not properly placed
Battery
rotative direction (Reverse Lever). in the battery housing.
Securely set batteries in place.
is displayed.
( *2 ) Batteries are running low.
Replace batteries with new ones.
is displayed and turned
Controller
off immediately.
Failure of the controller (CPU).
Please refer the next page.
(XX is indicated with 2 digit
number)
( *2 )
is displayed and turned
off immediately.
Troubles other than the main unit. Please refer the next page.
(X is indicated with 1 digit number)
( *2 )
Others
is displayed and turned Exceeded the torque limit for
Please refer the next page.
off immediately.
loosening.
( *1 )
may be displayed in this case.
If something wrong with the machine, please release the throttle lever and stop operating the machine.
( *2 )
Please refer the next page "troubleshooting (2) and (3)" for error codes.
Troubleshooting (1)
