KaVo Dental K9 4930 Instructions D'utilisation page 30

K9 4930
Assembly
Push new ball bearing ‰ onto shaft. Hold
shaft with key D and screw on nut „ again
with socket wrench E - note the left-handed
thread.
Push ball bearing ¯ (with the two O-rings
facing the inside of the handpiece) and bush
» onto the shaft as far as it will go.
While rotating the shaft unit ·, insert it into
the K9 handpiece.
Grip handpiece part £ and tighten the
threaded ring | with socket wrench E.
Insert new felt washer \ into threaded ring
|.
Hold K9 handpiece, screw on grip tip by
hand and tighten carefully with clip B. Insert
cover @.
To increase the life of the ball bearing,
KaVo recommends:
After changing the ball bearing, allow the
handpiece to run without an inserted instru-
ment for about 60 minutes at 10,000 to
15,000 rpm.
‰ „
»
¯
·
|
\
@
8 8
E
„
D
£