Troubleshooting - KaVo Key Laser III 1243 Instructions For Use Manual

Instructions for use KEY Laser III 1243
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8 Faults

8.4 Troubleshooting

CAUTION
Malfunction
Everything has stopped working.
No spray at handpiece.
Spray at handpiece poor.
Unsatisfactory laser result.
Leak in handpiece.
Touchscreen display goes out du‐
ring operation.
The laser cannot be switched to re‐
ady mode.
8.4 Troubleshooting
This part of the instruction is intended as an aid to self-help.
If you are unable to pinpoint or rectify your problem after reading this troubleshooting
documentation, please contact a KaVo-trained Service Technician.
Danger when opening the KEY laser
The KaVo KEY laser must only be opened and repaired by specially trained Service
Technicians.
▶ Never open the KEY laser.
Cause
Mains switch switched off.
Emergency laser stop actuated.
Power line not connected.
Spray reservoir is empty
Spray regulation screw on the laser
coupling is closed.
Spray nozzle blocked
Spray nozzle furred or soiled.
Exit window on handpiece soiled.
Exit window on handpiece faulty.
O-rings on laser tube coupling faul‐
ty.
In the case of safety-relevant faults,
the unit switches off automatically.
Priority logic switch of the swing arm
not actuated.
Remedy
▶ Switch on main switch.
▶ Release emergency laser stop.
▶ Connect a power line.
▶ Fill the spray water.
See also: 4.2 Filling spray water,
Page 37
▶ Open spray regulation screw.
See also: 4.18 Spray regulation, Pa‐
ge 70
▶ Clean spray nozzle.
▶ Pierce spray nozzle with a jet
See also: Handpiece instructions.
▶ Clean spray nozzle.
See also: Handpiece instructions.
▶ Clean exit window.
See also: Handpiece instructions.
▶ Replace exit window.
See also: Handpiece instructions.
▶ Replace O-ring.
Leak in laser instrument.
A leak in the laser instrument can
lead to damage to the internal hand‐
piece optical system.
▶ It is therefore necessary to have
▶ Switch KEY Laser 1243 on and
▶ Remove the handpiece from the
91/99
needle.
A jet needle is included among
the accessories.
the optical system checked by a
Service Technician or the instru‐
ment sent to KaVo for checking.
off.
If no message appears on the
touchscreen, contact the ser‐
vice.
support and pull forward until the
support micro switch of the
swing arm switches.