20
Troubleshooting
Handpiece vibrates, is very noisy
and/or becomes warm in the front
part.
Use of bent burs/tools.
→
Use a dif-
ferent bur/ tool to test this. The
bur/tool itself can be tested with the
hadewe Bur Shaft Tester (art. 4990)
to see if it is bent.
Maximum allowed speed of the tool
was exceeded, which caused a
stronger vibration.
→
Pay attention
to the tool (e.g. bur, capper and in-
strument) manufacturers handling
details.
Bur/tool can be inserted only with
difficulty or not at all.
Use of bent burs/tools.
→
Use a dif-
ferent bur/tool to test this. The
bur/tool itself can be tested with the
hadewe Bur Shaft Tester (art. 4990)
to see if it is bent.
Chuck is dirty.
→
Clean the chuck
according to the instructions in the
manual.
Bur does not clamp or does not spin.
Chuck is not tightened well.
→
Tighten the chuck firmly according
to the instruction in the manual.
Knob of the handpiece cannot be
moved easily.
Chuck is dirty.
→
Clean the chuck
according to the instructions in the
manual.
Unit does not work at all.
Check, if the main switch of the unit
is turned on at the side of the unit.
Foot switch is used constantly or
faulty.
→
Pull out the socket of the
foot switch to see if this is the cause.
Pull out the mains plug to reset the
device.
The unit shows different sound lev-
els at different sites of use.
The sound level varies according to
the surroundings of the unit. If you
set up the unit directly in front of a
wall, the sound is reflected stronger,
as if it would, while standing further
away from a wall.
Handpiece motor stutters shortly
(approx. 1 sec) when turning unit on.
In very rare cases this effect did
appear. It will not harm or damage
the device.
Suction function doesn't work.
The suction motor will turn off auto-
matically if it overheats. Let the de-
vice cool down before using it again.
Send the device off for inspection if
this occurs repeatedly.
