Schick HZ 90 User manual

Operating Instructions
SCHICK - Milling Machine HZ 90
Georg Schick Dental GmbH
Lehenkreuzweg 12
D-88433 Schemmerhofen
Telefon [phone]
Telefax [phone]
E-Mail [e-mail]
Internet www.schick-dental.de

SCHICK - Milling Machine HZ 90
Index
1. Equipment and Parts Supplied
Accessories / Spare-Parts:
2. Technical Data
1. List of contents - accessories
2. Technical data
3. Operating
- control unit
- milling machine
- swivelling model table
4. Change of tools
5. Change of the chuck
6. Change of carbon brushes
Milling Machine HZ 90 complete 2005
Milling Machine HZ 90 2000
Control unit SM-HZ 2100
Connection cable 1m 2108
Foot-switch ( for electro-magnet ) 2110
Foot-switch ( for motor ) 4260
SM-Motor with cable and milling spundle (chuck 2,35mm) 4100/02
Milling dish 2060
Swivelling model table 2121
Key to change the chuck 4115
Counterstay wrench 4113
Surveying spindle 2052
Milling dish insert 4920
Milling carriage 2182
Light equipment 2002
Lamp 4740
SM-Motor with special cable 2107 4150/02
Milling spindle 4310/03
Chuck 2,35 mm 4114
Chuck 3,0 mm 4117
Chuck 1,6 mm 4116
Motor with handpiece and cable complete 4100
( can separatly be used with the control unit - see
instruction point 1.6 )
Power voltage 115 / 230 V. a.c.
Power frequency 50 / 60 Hz
Power consumption 80 W
Equipment protection built-in overload protection
Motor voltage at maximum speed 23,5 V d.c.
Speed of milling spindle 0 - 30.000 rpm,
infinitely variable
Height ( max./min. ) / Width / Depth 420/320 mm / 210 mm / 270 mm
Weight complete about 16 kgs net
1

3. Operation
1.1 Put connecting cable into sleeve of control unit and into sleeve
of milling machine and screw it in.
1.2 Switch on by pushing switch “ON” - switch is illuminated. Only then all
the other electrical functions can be operated. To switch the unit off press
switch “OFF” again.
1.3 To operate the milling spindle push button “M2”. Then push button
“INT” to switch the motor on; by pushing button “EXT” the motor will be
switched off.
This milling motor also can be operated with the supplied foot switch - then
push button “EXT”. The foot switch with the 5-pole plug has to be put into
the corresponding socket at the rear side of the control unit.
1.4 To operate the electro-magnetic couplings for fastening the arm the supplied
foot-switch is to be used. The foot-switch with the 2-pole plug has to be put
into the corresponding socket at the rear side of the control unit.
1.5 The speed of the milling motor resp. The additional motor ( see 1.6 ) can infinitely
variable be adjusted between 0 and 30.000 r.p.m. by using the sliding resistor .
1.6 A seperate SM-Motor with normal SM-handpiece can be used by putting its plug
into the sleeve . To use this motor push switch “M1”.
To switch ON or OFF resp. to change the speed see point 1.3 and 1.5.
1.7
If the milling spindle resp. the handpiece is overloaded or blocked, the apparatus
is switched off for security reasons. By pushing the main switch unit has to be
switched off and then to be switched on again. When overheated, the thermic
switch on the rear side of the control unit cuts the current. When temperature is
normal again the black pin may be pushed in again.
2.1 Fastening and loosening of the arm by the electro-magnetic couplings is done
with the foot switch.
2.2 To turn the support arm to the desired height, lever has to be loosened by
turning slightly left. Then use the handwheel mounted at the right hand side
to adjust the pillar higher or lower.
After that the pillar has to be fixed with lever . Lever can be put into individual
desired positions by pulling and turning; the lever is fixed again by letting them
loose.
2.3 Swivelling model table and milling carriage can be loosened with lever . For
that reason loosen lever by turning, pull it in the axial direction and then take model
table or milling carriage out. To place model table or milling carriage turn lever
to vertical position and pull it in the axial direction. Put bolt of model table or
milling carriage in the boring, let lever loose and then turn lever slightly clockwise.
If desired, lever can be turned in any other position. For that reason the screw
at this lever has to be loosened, lever has to be turned in the position desired and
then screw has to be fixed again.
1. Control unit
(7) (6) (8)
(1)
(1)
(3) (2)
(2)
(2)
(5)
(4) (3)
Failures
(1)
2. Milling Machine
(9)
(10)
(9)
(17)
(17)
(17)
2

2.4 The milling spindle holder can be fixed in any desired postion by turning knurled
knob . At the top side of the milling spindle holder there are two grip sleeves
for depth stop and for tension of the spring.
The tension of spring can be adjusted in each position between the upper and the
lowest fix point. The spindle or depth stop shows a radial graduation of
50 x 0,01 mm and an axial graduation of 0,5 mm.
One complete rotation of this spindle is 0,5 mm. The complete vertical way of the
milling spindle holder is 20 mm. If drill-lever is not used, it can be screwd out
and be placed in the boring at the backside of the main arm.
2.5 To pull milling spindle out knurled screw has to be loosened. When putting
milling spindle please push spindle until it reaches the stop point. Lever - which
is used ot open and to close the chuck - has to be in the left position with closed
chuck. Then fasten knurled screw again.
The surveying spindle - delivered as accessory - can be put into milling spindle
holder in the same way. If not used the surveying spindle is placed in the boring
at the rear side of the arm.
3.1 After a long period of use it is possible that the model table is not longer strong
enough. This can be corrected by turning the set screw at the bottom side of the
model talbe.
To open the chuck turn lever right until it stops. Then you can pull out
the tool. After the new tool is placed in the chuck turn lever left until it stops.
Considering precision and life time of the chuck, be sure that a tool is always -
even when the machine is not in operation - firmly mounted in the chuck
(13)
(16)
(14)
(11)
(12)
(11)
(19)
(15)
3. Swivelling model table
(18)
4. Exchange of tools
(12)
(12)
ATTENTION: Exchange of tools only when motor is stopped !.
3
12

SCHICK - Milling Machine HZ 90
4
M1
SCHICK
4
10
15
20
25
30
SM
ON
OFF
INT
EXT
M 1
M 2
HZ 90
min¹ x 1000
0
10
123 4
5
6
7
8
9
11
12
13 14
15
16
17
Dentalgeräte & Dentalinstrumente
18
19

5. Exchange of the chuck
24 23
24 23
20 21
22
Pease note:
6.0 Change of carbon brushes
30
31
32 33
34
30
5.1 Open the chuck
5.2 Turn the chuck with the special key with a sharp movement and
unscrew it, in the sense of direction sign.
5.3 Screw chuck with the special key in the sense of direction sign
until feeling of resistance.
5.4 If after a long using period the chuck is blocked, remove the milling spindle
from the motor with pin in order to maintain the carrier with the
enclosed special key .
In the chuck is a stroke for short shafts, this could be removed or
replaced as required.
6.1 Unscrew cap in direction of arrow and pull back. Disconnect cable
plug.
6.2 Turn by finger withhold spring in the sense of direction sign to the stop
6.3 Remove the old carbon brushes
6.4 Put the new carbon brushes . Make sure that the positioning pin has entered
into the hole . Do not twist the positioning pin.
The copper - wire of the carbon must stand freely.
6.5 Use finger to turn withhold spring in direction of arrow until stop.
Connect cable plug ( watch position ).
6.6 Close cap and rescrew it. Be careful not to twist the cable.
5
20
23
24
21
22
23
24
30
31
31
32
33
34

6
Declaration of Conformity
We,
Lehenkreuz 12
88433 Schemmerhofen
declare herewith, that the product
is in conformity with the following provisions of Directive:
92/59/EWG (allgemeine Produktsicherheit)
89/392/EWG (Maschinenrichtlinie)
73/23/EWG (Niederspannungsrichtlinie)
According to following standards:
EN 60204/1
EN 55014
EN 292
DIN/VDE 0875/1
GEORG SCHICK DENTAL GmbH
Milling unit HZ 90 2005
(Elektrische Ausrüstung von Maschinen)
(Funkentstörung)
(Sicherheit von Maschinen)
(Sicherheit von Maschinen)
Schemmerhofen, January 1997
W. Schick
Geschäftsführer
08/11 bg D21061