Problem
Possible Causes
Solution
Handpiece does not start up. Power Unit is empty.
Charge the Power Unit or replace it
with a charged Power Unit.
The handpiece was not cooled off
after sterilization.
Let the handpiece cool to room
tem perature.
Mode switch is on OFF.
Turn the mode switch to ON or
FWD ONLY mode.
Handpiece switched off after two
hours of no use.
Turn the mode switch to OFF and
ON again.
Handpiece does not have
enough power.
Power Unit is empty.
Charge the Power Unit or replace it
with a charged Power Unit.
Handpiece stops suddenly.
The handpiece has overheated
(overheating protection is activated).
Wait until the handpiece has cooled down.
Power Unit has reached its end of use.
Replace with a new Power Unit and dispose
off the old one.
Attachments cannot be
coupled to or removed from
the handpiece.
The attachment coupling is blocked
by deposits or the coupling sleeve is
damaged.
Remove solid objects with a pair of tweezers.
▲ WARNING:
Immediately turn mode switch to OFF
position to avoid injuries. Remove solid
particles with a pair of tweezers. Check the
coupling sleeve; clean and lubricate if neces-
sary. Send handpiece to DePuy Synthes
Service Center if necessary.
Cutting tool (saw blade, drill,
burr etc.) cannot be coupled
or only with difficulty.
Shaft geometry of the attachment
or handpiece is damaged.
Replace the attachment or handpiece or
send it to your DePuy Synthes Service
Center.
Oscillating saw attachment
vibrates too much.
The saw blade locking mechanism is
not tight.
Tighten the locking knob of the saw blade
coupling.
Both triggers being pressed simultane-
ously whilst the mode switch is in the ON
position.
Keep the mode switch on ON but press
forward trigger only or turn the mode
switch to FWD ONLY mode.
Bone and cutting tool heat
up during surgery.
Cutting edges of the cutting tool
are blunt.
Replace the cutting tool.
The casing opening button
is stuck.
The casing opening button needs to
be lubricated.
Lubricate the casing opening button
as described on page 37.
Handpiece continues to run
after releasing trigger.
Trigger is jammed by deposits or
handpiece is defective.
Immediately turn mode switch to OFF
position.
Ensure that the trigger is cleaned and lubri-
cated correctly. If necessary send handpiece
to DePuy Synthes Service Center.
Device is visibly damaged.
Device was for example: exposed to
excessive heat, was incorrectly washed,
disinfected, steam sterilized or fell on
the floor, etc.
Do not further use the device as it must
be replaced.
Troubleshooting
Troubleshooting
For a patient/user/third party in the European Union and in countries with identical regulatory framework (Regulation
(EU) 2017/745 on Medical Devices): if during the use of this device or as a result of its use, a serious incident has
occurred, please report to the manufacturer and to the competent authority of the Member State in which the user
and/or patient is established.
53
UNIUM
™
• Instruction for Use
