A-dec Dental System Accessories User manual

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Accessories Overview

This section provides descriptions, service, maintenance and adjustment detail on the
following accessories:

• Dual voltage intra-oral light source

•Single voltage intra-oral light source

• Cascade scaler

•Tooth dryer

• Self-contained water system

• Low voltage water heater/heated syringe system

• Curing light.

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Accessories General Information

Dual/Single Voltage
Intra-Oral Light Source

Tooth Dryer

The A-dec Intra-oral light sources provide electrical power to illuminate handpiece light bulbs. The
dual voltage control has two potentiometers to allow operation of two different bulb requirements.
The single voltage light source has a single potentiometer to adjust output voltage. Both units have a
low and a bright output that must be adjusted when in bright mode. Refer to the following table
for specifications.

A-dec’s warm air tooth dryer provides warm air, for tooth preparation. It is sterilizable, has no
moving or electrical parts, and functions by routing 60 psi of air pressure through its vortex tube. The
warm air flows out of the tip at 125°F/ 51.7°C and 135°F/57°C while the cool air is exhausted. The
tooth dryer should be connected to a tooth dryer end cap or relay and a dedicated tooth dryer tubing
for optimum performance.

Identifying the Accessories

Intra-Oral Light Source Specifications

Single Dual

Output 2.9-4.25 VAC 3.0-5.6 VAC

at 0.8 amps at 1.4 amp

Input 24 VAC 24 VAC

Power 17 watts 17 watts
Consumption

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Accessories General Information

Self-Contained
Water System

Low Voltage Water Heater/
Heated Syringe System

The self-contained water system provides a closed water supply system separate from the municipal
system. When supplied with 40 psi of air pressure, it provides treatment water to the control block
system and syringe. It also allows for water line asepsis and air purging of the control system.

The low voltage water heater/heated syringe tubing system provides instant heated water
(90°F/32.2°C) to the unit handpiece control and syringe.

Specifications

Low Voltage Water Heater 24 VAC

Syringe Tubing 6 VAC

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Accessories Wire and Plumbing Diagram

Dual Voltage Intra-Oral Light Source

Cascade delivery systems: from post box
Radius delivery systems: from power supply

Terminal strip

Terminal strip wiring voltage

(after April 1998)

Wire Color Voltage

Black/White 0

Black/White 0

Red 6

Violet 17

Gray 24

Gray 24

Gray 24

Gray 24

To handpiece
holder valve
(holdback air)

NOTE: Confirm that the bulb requires no more

than 1.3 amps before connecting any
lighted handpiece or coupler to the
A-dec dual voltage intra-oral light
source. When additional lighted
handpieces are connected to the control,
an additional handpiece select switch
and shuttle valve (026.074.01) will be
installed for each additional handpiece.

After April 1998

Item # Part Number Description

1 90.0380.00 Intra-oral light

source, dual voltage

2 044.159.00 Air-electric switch

(replace as a
complete assembly)

3 75.0911.01 Switch diaphragm

4 75.0909.00 Intra-oral light

source switch (replace as a
complete assembly)

1

2

4

3

24VAC

INPUT PWR

P/N 90-0380-00

A-DEC

INTRA-ORAL

DUAL VOLTAGE CONTROL

LIGHT SOURCE

MAXMAX

B

A

WIRES BEFORE ADJUSTING

OUTPUT ADJUST

DISCONNECT DIMMER SWITCH

AB

DIMMER

SWITCH

POWER

0061724242424

VOLTS AC

A

W

D

2

D

1

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Accessories Wire and Plumbing Diagram

Cascade delivery systems: to post box
Radius delivery system: to power supply

Ground

Terminal
strip

Terminal strip wiring voltage

(before May 1998)

Position Wire Color Voltage

1Black 0

2Brown 0

3Red 6

4Orange 24

5Yellow 24

6Green & Yellow Ground

7 Blue 24

8Violet 17

Before May 1998

NOTE: Confirm that the bulb requires no more than 1.3 amps

before connecting any lighted handpiece or coupler to
the A-dec dual voltage intra-oral light source. When
additional lighted handpieces are connected to the
control, an additional handpiece select switch and
shuttle valve (026.074.01) will be installed for each
additional handpiece.

To handpiece
holder valve
(holdback air)

Item # Part Number Description

1 90.0380.00 Intra-oral light source,

dual voltage

2 044.159.00 Air-electric switch

(replace as a complete
assembly)

3 75.0911.01 Switch diaphragm

4 75.0909.00 Intra-oral light source

switch (replace as a
complete assembly)

1

2

4

3

NOTE: Voltages should be adjusted while the foot control is

being stepped on. This ensures the DIOLS is in bright
mode. Do not measure voltage at the end of the
tubing. It is necessary to have a bulb installed and
illuminated for an accurate reading.

Dual Voltage Intra-Oral Light Source

A-DEC

INTRA-ORAL

DUAL VOLTAGE CONTROL

LIGHT SOURCE

INPUT PWR

P/N 90-0380-00

MAXMAX

B

24VAC

A

WIRES BEFORE ADJUSTING

OUTPUT ADJUST

DISCONNECT DIMMER SWITCH

AB

DIMMER

SWITCH

POWER

12345678

A

W

D

2

D

1

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Accessories

Adjustments

Adjusting the Dual Voltage
Intra-Oral Light Source

(DIOLS)

*Voltage is measured at output terminal of IOLS with bulb lit. (Unit must be in
bright mode when adjusting the output voltage if the function is used.
Disconnect one of the bright/dim switch wires temporarily to enable the bright
mode. Reconnect the wire after any adjustments are made.)

DIMMER
SWITCH

AB

POWER

OUTPUT ADJUST

DISCONNECT DIMMER SWITCH

WIRES BEFORE ADJUSTING

A

B

A-DEC

INTRA-ORAL

LIGHT SOURCE

MAXMAX

INPUT PWR

24VAC

DUAL VOLTAGE CONTROL

P/N 90-0380-00

Terminal
(output A and B)

Bright/dim switch

Adjustment
potentiometer

(in) (cm) VDC +/- .02

48 122 3.51
54 137 3.54
60 152 3.56
66 168 3.59
72 183 3.62
78 198 3.65
84 213 3.67
90 229 3.69
96 244 3.71
102 259 3.74
108 274 3.76
114 290 3.79
120 305 3.82
126 320 3.85
132 335 3.87
138 351 3.90
144 366 3.93
150 381 3.96
156 396 3.99

Length and Voltage Table

Wire length in

A-dec tubing

A-dec/W&H, Bien Air,

or other bulbs rated at 3.5V

Voltage at terminal strip

*

Set to
DC volts

Digital voltmeter

Black
(common)

Red
(V Ω)

NOTE: Increase the terminal voltage by rotating the adjustment screw clockwise.

Decrease the terminal voltage by rotating the adjustment screw counterclockwise.
Use potentiometer A for “output A” and potentiometer B for “output B”

DIMMER
SWITCH

POWER

AB

OUTPUT

DISCONNECT

WIRES

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Accessories

Adjustments

Adjusting the Single
Voltage Intra-Oral
Light Source

(SIOLS)

Task Description

1 Determine the handpiece wire length and the bulb type. (Wire length and bulb type should be

the same for each lighted handpiece position.)

2Find the corresponding (wire length/bulb type)

terminal voltage in the
“Length/Voltage Table”
on page AC-6.

3 Remove a lighted

handpiece from its holder.

4Move the wet/dry toggle

on the foot control to the
OFF position, away from
the blue dot. Step on the
foot control.

5Using an adjustment

screwdriver, adjust the
brightness potentiometer
until the voltmeter dis­plays the voltage set from
the Length/Voltage Table
on page AC-6.

6 Replace the handpiece in

its holder. All lighted
handpieces have
been adjusted.

INTRA ORAL

Black

Voltmeter (set to DC volts)

Red

To adjust:
Rotate adjustment screw clockwise to increase
output voltage, or counterclockwise to
decrease output voltage.

From 24VAC
source

From handpiece control block.
Holdback air for lighted handpieces.

From air coolant
signal

Bright/dim switch

Handpiece
select switch

NOTE: Voltages should be adjusted

while the foot control is being
stepped on. This ensures the
SIOLS is in bright mode. If
measuring voltage at the end
of the tubing, use A-dec/W&H
tools. It is necessary to have a
bulb installed and illuminated
for an accurate reading.

NOTE: For handpiece select switches, unlighted positions must be connected to pilot air.

Adjust the SIOLS by following these steps.

PN 34-0064-00

DANGER

2.9 - 4.25VDC .8AMP

POWER

24V

/DC

AC

INTRA ORAL

LIGHT SOURCE

ADJUST ONLY
WHEN BRIGHT

BRIGHT

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Accessories Electric Handpiece Plumbing and Wire Diagram

52.0068.00
7' electric handpiece cordset

Electric handpiece controller

52.0027.00
Handpiece forward, neutral, reverse
switch (replace as a complete assembly)

75.0909.00
Handpiece select
(replace as a complete assembly)

90.0380.00
Intra-oral light
source, dual voltage
(replace as a
complete assembly)

Cascade delivery systems:
from post box
Radius delivery systems:
from power supply

Terminal and
manifold

Terminal strip wiring voltage

(after April 1998)

Wire color Voltage

Black/White 0
Black/White 0

Red 6

Violet 17

Gray 24
Gray 24
Gray 24
Gray 24

After April 1998

52.0020.00
Electric handpiece kit
(replace as a complete assembly)

Speed
control

T1

T2

A-DEC

INTRA-ORAL

AB

DIMMER

SWITCH

+

M
40
20

24V AC

24VAC

INPUT PWR

P/N 90-0380-00

DUAL VOLTAGE CONTROL

LIGHT SOURCE

MAXMAX

B

A

WIRES BEFORE ADJUSTING

OUTPUT ADJUST

DISCONNECT DIMMER SWITCH

POWER

2a1 3 4 5 6 78910

1234

0061724 24 24 24

VOLTS AC

W

A

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Accessories Electric Handpiece Plumbing and Wire Diagram

Ground

Terminal strip wiring voltage

(before May 1998)

Position Wire color Voltage

1 Black 0
2 Brown 0
3 Red 6
4 Orange 24
5 Yellow 24
6 Green and Yellow Ground
7 Blue 24
8 Violet 17

52.0068.00
7' electric handpiece cordset

Electric handpiece controller

52.0027.00 Handpiece forward, neutral,
reverse switch. (replace as a complete assembly)

75.0909.00
Handpiece select
(replace as a complete assembly)

90.0380.00
Intra-oral light source,
dual voltage (replace as
a complete assembly)

Cascade delivery systems: from post box
Radius delivery systems: from power supply

Terminal and
manifold

Speed control

Before May 1998

T1

T2

A-DEC

INTRA-ORAL

AB

DIMMER

SWITCH

+

M
40
20

24V AC

24VAC

INPUT PWR

P/N 90-0380-00

DUAL VOLTAGE CONTROL

LIGHT SOURCE

MAXMAX

B

A

WIRES BEFORE ADJUSTING

OUTPUT ADJUST

DISCONNECT DIMMER SWITCH

POWER

2a1 3 4 5 6 78910

1234

12345678

W

A

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Accessories

A-dec/W&H Handpiece Voltage Adjustments

Adjusting Handpieces

Measurement can be done at the handpiece or the Roto-Quick with the use of special tools. When
measuring at this point, the voltage should be 3.2 V. Tool #C709 is a RA-24 bulb with arms used to
attach the volt meter probes. Tool # C679 is a cutout sleeve for the Synea L handpieces. This can be
exchanged for the standard sleeve, connected to the Roto-Quick and allows access for the probes onto
the contacts.

*The air pressure adjustment screw is located under the sleeve opposite the bulb. It is factory set
at 2.2 bar (representing 32 psi). If air pressure needs to reach 45 psi, adjust the screw to 3.0 bar to
compensate for higher pressure.

NOTE: Voltages should be adjusted while the foot control is being stepped on. This ensures the SIOLS

is in bright mode. If measuring voltage at the end of the tubing, use A-dec/W&H tools. It is
necessary to have a bulb installed and illuminated for an accurate reading.

A-dec/W&H Handpiece Drive Air and Light Voltage Settings

Handpiece Model Voltage Setting (DC) Drive Air Pressure (psi) Factory Setting

at Bulb Pins

898 RM or 898 RM 3.2 32 N/A
898LE 3.2 45 3.0 bar
896 3.2 32* 2.2 bar*
All Synea models 3.2 45 3.0 bar
Low-speed motors 3.2 45 N/A
Electric motors 3.2 55-60 N/A
Tooth dryer N/A 60 N/A

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Accessories

Handpiece Maintenance

Cleaning

Lubricating

Run

Step

Action

Follow these points to properly maintain handpieces.

With water switched off, run handpiece 20 to 30 seconds to blow all water out of spray tubes using
the foot control. If the spray tubes are not dry, they may become clogged with calcium deposits
during heat sterilization.

After removing the handpiece from the dental unit, remove the bur and thoroughly clean
external surfaces with a soft brush and alcohol or soap and water. Use of disinfectant may have a
harmful effect on the finish of the handpiece.

Install the proper spray cap onto the A-dec/W&H spray oil can. Shake the can before use. Spray for
approximately one second into the drive air port of the handpiece or the back end of the handpiece.
While spraying, visible debris may be expelled from the handpiece head. If this occurs, repeat the
spraying in one second intervals until no visible debris is expelled.

After lubrication, the handpiece should be attached to a handpiece tubing and run for 30
seconds to remove all excess oil. Excess oil will be discharged from the handpiece during this
running. Wipe excess oil off with a soft cloth.

CAUTION

Do not immerse handpieces under water or in any
cleaning solutions. Do not ultrasonically clean handpieces.

Maintaining
Handpieces

The information in the following charts assists in maintaining handpieces properly.