
16 17
Trouble Cause / Check Remedy
Error code E4
appears.
Error code E5
appears.
Error code E6
appears.
Error code E8
appears.
Error code E9
appears.
Error code EF
appears.
Vacuum-coupled Mode is on,
while the dust collector is not
used.
After stopping to cool it down
place for about 10 minutes,
check the operation again.
Turn on the power again, and
repeat starting and stopping
several times.
The chuck is open.
Maintenance mode (3) “HL”:
Confirm whether you work by a
motor signal check normally.
Check turning a tip with a finger
lightly and turning around it
lightly.
Turn on the power again.
If you have two or more units,
replace the motor cord and
check the operation.
If you have two or more units,
replace the motor cord and
check the operation.
Maintenance Mode (4) “Pd”:
Check whether Foot Pedal
operates normally by Foot Pedal
Chuck.
Make the Vacuum-coupled Mode to
be off. See Vacuum-coupled Mode
section in the manual. (See *
Vacuum-coupled Mode)
If it operates normally, there is no
problem. Check the operating
environment, storage location, etc., for
high temperature. If the same error
code appears frequently, ask for repair
of the unit.
If it operates normally, there is no
problem. If the same error code
appears, ask for repair of the unit.
Lock the chuck. If any problem is
found during a check, the motor cord
may be severed or the sensor in the
motor may be faulty. Ask for repair.
If any problem is found during a check,
the motor cord may be severed or the
sensor in the motor may be faulty. Ask
for repair.
If the rotation is abnormal, ask for
repair of the motor and handpiece.
Error indication is a temporary thing by
the overload if I work normally. There is
not it abnormally.
If it operates normally after replacing
the motor cord, the motor and/or the
motor cord may be shorted. Ask for
repair of the motor and/or the motor
cord. If the same error code still
appears after replacing the motor
cord, ask for repair of the unit.
If it operates normally after replacing
the motor cord, the motor and/or the
motor cord may be shorted. Ask for
repair of the motor and/or the motor
cord. If the same error code still
appears after replacing the motor
cord, ask for repair of the unit.
If it does not operate normally, change
the Foot Pedal for new or ask for
repair.
The motor and handpiece do not run, or Reset Lamp lights.
<Handpiece>
Trouble Cause / Check Remedy
The handpiece does
not run with the
chuck tightened.
Heat is generated
during rotation.
Vibration or noise
occurs during rotation.
Run out of the bur
is heavy.
The bur comes out
Entry of foreign matter in the ball
bearings or seizure.
Entry of foreign matter in the ball
bearings, causing wear of the bearings.
Same as the above.
A bent bur is used.
Dust may be stuck in the chuck or
spindle.
The chuck is worn.
The ball bearings are worn.
The chuck is loose.
Send it to your dealer. Ask for
repair.
Same as the above.
Same as the above.
Replace the bur
Clean the inside of the chuck and
spindle.
Replace the chuck.
Send it to your dealer.
Tighten the chuck securely. (See
*Handling of Motor and
Handpiece.)
Trouble Cause / Check Remedy
The rotation speed
does not rise.
The maximum rotation speed for
operation by foot pedal should be
set with the Speed Control Knob.
Set the maximum rotation speed with
the Speed Control Knob.
English