c a
b
19 Installation
14 - ADJUSTING THE DENTIST’S INSTRUMENT BOARD Two dowels (a, b) are provided in the dentist’s instrument table support:
- The top dowel (a) is used to control the friction of dentist’s instrument table;
- The bottom dowel (b) is used to prevent the instrument table from turning round.
Attach the round sticker (c) as illustrated.
Classe A7 Plus International
Fig. 19/a
Classe A7 Plus Continental/A9
Fig. 19/b
15 - TRAY-HOLDING TABLE ONLY CONTINENTAL VERSION
Assemble the tray-holding table, which is fastened by a self-locking nut which is already screwed into the hinge under the instrument table.It is important to check the nut locking strength, so the tray-holding table can move with a certain smoothness.
Nylon washer
Self-locking nut
Fig. 20
a b c
TECHNICAL MANUAL - Classe A7 Plus/A9 (Series 2007)
20 Installation
16 - INSTALLING THE WATER SUPPLIERS TO THE CUP
17 - INSTALLING THE SUCTION TUBES Fig. 21
Fig. 22/a
Fig. 23
VENUS PLUS LAMP Mount the label
18 - OPERATING LAMP
- Feed the power supply cable (b) into the lamp stand (a) and assemble the stand (a) in its place after having greased its end.
- Link the connector from the light to the corresponding one from the dental unit.
- Insert the operating light support arms pin (c) into the dental unit post extension (a).
It is not necessary to grease the hinge (c) of the lamp since the grease that is already there is suffi cient, and the bush inside the stand is made of self-lubricating material.
Fig. 22/b
Classe A7 Plus Classe A9
Classe A7 Plus/A9
a
b
c
21 Installation
Fig. 25
Fig. 26
Fig. 27 Fig. 24
20 – PNEUMATIC HEADREST INSTALLATION
- Insert the head-rest in its own guides inside the metal part of the back-rest.
- Screw the 2 TCEI M4x6 endstop screws with the relative washers, supplied with the apparatus, in the headrest rod as shown in fi g. 25.
- Be sure that the head-rest cannot be moved up.
- Conecte el cable eléctrico (sólo para el reposa-cabezas con la botonera de mandos en el sillón) y el tubo del aire, tal y como indica la fi gura 26.
- Using two clamps block the system in the points a, as shown in fi g. 27.
19 - TRAY-HOLDING TABLE ON ASSISTANT’S BOARD - Insert the tray-holder (a) in the relative support (b).
To lock/unlock the tray holder, simply using the clutch knob (c).
f b c
d g
h i
a
a e
TECHNICAL MANUAL - Classe A7 Plus/A9 (Series 2007)
22 Installation
21 - ADJUSTING THE OSCILLATING ARM SPRING
- Remove the two side “plugs” by pulling them sideways and outwards (see fi g.28, point a).
- Remove the instrument holder by loosening the 4 screws which secure it to the board.
- Once the holder has been removed, take out the pivot pin it rotates on. The pin does not have a stop and can simply be pulled out by hand (see fi g.28, point b).
- Remove the arm from the plastic support (fi g.28 point c) being careful to make sure the spring does not come out of its seat. Once the arm has been removed, a set of holes marked with a number (fi g.29) can be seen. One end of the spring will be secured in one of these holes (fi g.28, point e).
- Remove the spring and position it in the hole required (fi g.29). To make the arm spring back more quickly, place the spring in a hole marked with a higher number than the previous one. On the other hand, to slacken the arm a little, place the end of the spring in a hole marked with a lower number than the previous one.
- Reposition the spring on the arm between the new hole and the stop seat provided (fi g.28, point f).
- Install the arm in the support again.
- Make sure the end of the spring is correctly placed in the hole at the bottom of the support (see fi g.28, point h).
- Re-install the pin carefully in order to secure everything in place.
- Once the arm has been secured to the board, put back the two plugs.
Fig. 29 Fig. 28
TABLE SHOWING THE PRE-LOAD POSITIONS OF THE INSTRUMENT HOLDER SPRING:
Type of instrument Pre-load position
Satelec SUPRASSON scaler 4
EMS scaler 4
LUZZANI 6F syringe 8
Turbines (all) 8
T LED light 11
MC2/MC3 micromotor 14
ID CAM Telecamera 8
23 Installation
22 - CHECK DURING THE ASSEMBLING AND/OR PERIODICAL ATTENSIONS
UNIT: DOCTOR TABLE Used instrument Result OK
• Tension check of the pantograph arm springs /
• Air pressure calibration in the turbine (+/- 8% vs. limits indicated by producer) manometer value______
• Cooling air regulation of the micromotor inside air cooling fl owmeter/manometer value______
• Instrument water and spray regulation /
• Check hot air and hot water syringe working /
• Check all controll for instrument and chair /
• Microprocessor / doctor console check /
• F.O. voltage regulation/test voltmeter value______
• Friction regulation of the tray-holder table /
• Instruments arm spring calibration /
• Test and effi ciency turbines and handpieces /
• Check voltage: 230 (+/- 10&) Vac voltmeter value______
• Inlet air pressure check with pressure gauge code 91104498
[high pressure: 6 (+/- 0,25) Bar; low pressure: 3 (+/- 0,25) Bar] manometer value______
• Inlet water pressure check with pressure gauge code 91104498
[water pressure: 2,5 (+/- 0,25) Bar] manometer value______
• Test of the connection tighness in water /
• Check main switch on and off /
DENTAL UNIT WITH WHE SYSTEM
• Make sure WHE tanks are full /
• Check probes for WHE tanks (close air cock) /
• Make sure WHE tanks are empty /
DENTAL UNIT WITH BIOSTER SYSTEM
• Check complete disinfecting cycle /
• Check fl ushing cycle /
UNIT: FOOT CONTROL
• Instrument activation and rheostat working test /
• OUT DROP NO RETRACTION test /
UNIT: ASSISTENT TABLE
• Security microswitch test /
• Check every control and simulation of every operational procedure /
• Actuators suction system test /
• Assistent spray air-water syringe test /
UNIT: OPERATING LAMP
• Check switch ON/OFF /
• Check potentiometer (if present) /
• Check fan for the cooling /
• Pivot effi ciency test /
DENTAL CHAIR
• Test safety microswitch to the safety plate and the backrest /
• Test noise degree during movements /
• Foot control test /
• Sliding of the articulated headrest test /
MULTIMEDIA
• Check the camera handpiece, monitor MEDICAL VIEW or WORKSTATION /
• Friction adjustment for WORKSTATION holder. /
• test all the function and the quality of the image on the screen /
• Check position of the DIP SWITCHES in the camera control board /
COMPRESSOR
• Test working pressure on compressor manometer minimum value 6 bar / maximum value
8 bar manometer value______
• Junction tightness test /
A
O-ring
d
B B
A
TECHNICAL MANUAL - Classe A7 Plus/A9 (Series 2007)
24 Installation
24 - INSTALLING THE COVER OF THE FLOOR BOX
- Place the cover (A), supplied with the apparatus, on the basic dental chair card: it clicks into place.
- Insert the cover (B) from the high and fi x it with the 4 screws with a 3 mm male hex. wrench.
- Cover the screws with the four appropriate covers.
In case of external connections, it is necessary to cut the cover (B) to let the system leak.
Main switch actuator
Fixing screws
Fig. 32
23 - PADDING THE SEAT OF THE DENTAL CHAIR
The padding of the chair is fastened by four screws in the front as indicated in the drawing (Fig. 30). On the contrary the padding of the backrest, of the armrest and of the headrest are fastened by fast connections which, if necessary, can be set with a screw driver in d.
Before adjusting, loosen all the quick-couplings “d” so that they protrude by 1 mm (A – Fig 31).
If further adjustment is required, fi t an O-ring (code 97362000) over the internal tabs of the quick coupling (d).
Fig. 30 Fig. 31
Padding of the seat
Position of quick-connect coupler before being adju-sted (1 mm.)
Backrest, armrest or headrest casting
Screw
Washer Screw Loosen bush B bringing it against the metal
part of the armrest (the upholstery should not defl ect)
Spacer Cap
Screw
230 Vac
A
25 Installation
25 - RAISING THE DENTAL CHAIR
Inside every chair there is a sectionable feeding cable of the backrest return motor.
This sectioning is placed under the connection box cover (doctor side) and can be used when the dental chair is completly down too.
In fact, unscrew the four screws of the cover and insert a hand as shown in the fi gure 34.
Feeding directly the motor with a 230 Vac cable and positioning this one between the central point and one of the two extremes (see fi g. 33), the dental chair moves up or down. In this way the connection box is ready for the technical intervention.
MOVE THE CHAIR UP Fig. 33
Fig. 34
1 Instruments board and display symbols