6
K5 4910. K5plus 4911.
A 6 Maintenance
!
Repair and maintenance work on the
electrical part of the unit may be performed
only by qualified technical personnel or
trained persons who have been made aware
of the safety regulations. Before mainte-
nance work, disconnect the mains plug or
isolate the unit completely from the power
supply so that there is no power to the unit.
!
On no account may the handpiece be
cleaned with compressed air; use the clean-
ing brush from the care set.
!
On no account should cleaning agents
(such as spray cleaner, degreaser, etc.) be
introduced into the interior of the hand-
piece.
A 6.1 Weekly cleaning of chuck and
handpiece part
Removing the chuck
Remove previously used tool or straight
pin from the chuck and take off cover @
(3 covers as spare parts in the care set).
Push straight pin into chuck as far as it will
go and close.
Slowly turn the shaft by the straight pin ”
until clip
B
can be inserted into grip tip #
with little resistance.
Open the chuck. Unscrew the chuck using
original chuck key
A
and inserted straight
pin or tool ”.
Clean the front opening of the handpiece
with a brush or the cleaning brush sup-
plied. Clean the chuck thread, surface of
the chuck Ì and rotor cone and lightly
grease.
Installing the chuck
Insert chuck incl. straight pin ” using
original chuck key
A
and tighten.
Mount cover @ again.
Remove clip
B
from grip tip # and close
chuck with inserted straight pin again.
Cl e a n e r
” @
A
B
#
”
Ì
Ì
”
£
#
