A-dec 200 User manual

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A-dec 200™ Service Guide

A-DEC 200 SERVICE GUIDE

Intended Application and Use

A-dec Inc. makes no warranty of any kind with regard to this material, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. A-dec Inc. shall not be held liable for any errors contained herein or any consequential or other damages concerning the furnishing, performance or use of this material. The information in this document is subject to change without notice. If you find any problems in the documentation, please report them to us in writing. A-dec Inc. does not warrant that this document is error-free.

No part of this document may be copied, reproduced, altered, or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or by any information storage and retrieval system, without prior written permission from A-dec Inc.

Trademarks and Additional Intellectual Property Rights

A-dec, the A-dec logo, A-dec 500, A-dec 300, Cascade, Cascade Master Series, Century Plus, Continental, Decade, ICX, ICV, Performer, Preference, Preference Collection, Preference ICC, and Radius are trademarks of A-dec Inc. and are registered in the U.S. and other countries. A-dec 200, Preference Slimline, and reliablecreativesolutions are also trademarks of A-dec Inc. None of the trademarks or trade names in this document may be reproduced, copied, or manipulated in any manner without the express, written approval of the trademark owner.

Certain touchpad symbols are proprietary to A-dec Inc. Any use of these symbols, in whole or in part, without the express written consent of A-dec Inc. is strictly prohibited.

This equipment/system is intended for diagnostic and therapeutic treatment of dental patients by licensed health care professionals.

A dental operative unit (with or without accessories) is an AC-powered device intended to supply power to and serve as a base for other dental devices, such as a dental handpiece, a dental operating light, an air or water syringe unit, an oral cavity evacuator, a suction operative unit, and other dental devices and accessories.

Comments and Feedback

If you have any feedback or comments about this document, contact:

A-dec Inc. Technical Communications Department 2601 Crestview Drive Newberg OR 97132 USA

USA/Canada: 1.800.547.1883 Worldwide: 1.503.538.7478 E-mail: techcomm@a-dec.com Website: www.a-dec.com

Regulatory Information

Regulatory information is provided with A-dec equipment as mandated by agency requirements. This information is delivered in the equipment’s Instructions for Use or the separate Regulatory Information and Specifications document. If you need this information, please go to the Document Library at www.a-dec.com

Product Service

For service information, contact your local authorized A-dec dealer. To find your local dealer, go to www.a-dec.com

CONTENTS

1 INTRODUCTION ...............................................1

Get Support ............................................................1

International Customer Service .........................................1

Inside this Guide ...................................................... 1

A-dec 200 System ..................................................... 2

Serial and Model Numbers........................................... 3

Service Tools ........................................................... 4

2 DENTAL CHAIR ................................................7

Product Overview ..................................................... 8

Chair Load Capacity.......................................................8

Power and Status .........................................................8

Limit Switch and Chair Lockout .........................................8

Circuit Board Components ...............................................9

Service, Maintenance, and Adjustments ....................... 10

Factory Default Routine ................................................ 10

Potentiometers .......................................................... 11

Adjust the Base Up Limit Switch: ........................................ 11

Adjust the Base Positioning Potentiometer ............................ 12

Adjust the Back Potentiometer ..........................................12

Hydraulic System ........................................................ 13

Solenoids.................................................................. 14

Test the Solenoid ........................................................... 14

Remove and Replace the Solenoid ....................................... 14

Test the Motor Pump.................................................... 15

Headrest Adjustments .................................................. 16

Chair Speed Adjustments .............................................. 16

Illustrated Parts Breakdown....................................... 17

Part Identification....................................................... 17

Chair Covers.............................................................. 17

Upper Chair Assembly .................................................. 18

Mid Chair Assembly ..................................................... 20

Lower Chair Assembly...................................................22

Headrest Assembly ...................................................... 23

Motor Pump and Capacitor Assembly ................................. 24

Hydraulic Manifold Assembly ..........................................26

Hydraulic Tank Assembly ...............................................27

Base Limit Switch Assembly............................................ 27

Back Potentiometer Assembly .........................................28

Base Position Potentiometer Assembly ...............................29

3 PROGRAMMING ..............................................31

Touchpad Options ................................................... 32

Chair Positions ........................................................... 32

X-Ray/Rinse Button......................................................32

Dental Light ..............................................................33

Auto On/Off ................................................................. 33

Cuspidor Cupfill and Bowl Rinse....................................... 34

Standard Cuspidor (no touchpad) ....................................... 34

Cuspidor with Optional Touchpad ....................................... 34

Customize Cupfill and Bowl Rinse Functions .......................... 34

4 DELIVERY SYSTEM .......................................... 35

Product Overview ................................................... 35

A-dec Tubing.............................................................. 36

Service, Maintenance, and Adjustments ....................... 37

Flexarm Adjustments ...................................................37

Instrument Holder Adjustments .......................................38

Handle ....................................................................... 38

Control Block .............................................................39

Remove the Control Block ................................................ 39

Handpiece Control Adjustments.......................................40

Adjust the Water Coolant ................................................. 40

Adjust the Air Coolant .................................................... 40

Adjust the Drive Air Pressure ............................................. 41

Oil Collector ..............................................................41

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A-dec 200 Service Guide

Handpiece Tubing Replacement....................................... 42

Adjust Tubing Length ...................................................... 42

Quad Voltage Intraoral Light Source (QVIOLS)...................... 43

Intraoral Light Source Adjustments ..................................... 44

Intraoral Light Source Length and Voltage .......................... 45

Illustrated Parts Breakdown ...................................... 47

Part Identification....................................................... 47

A-dec 200 Delivery System............................................. 48

Holder Assembly......................................................... 50

Control Block Assembly ................................................ 52

Toggles Assemblies (Flush Toggle and Master On/Off Toggle) .... 53

Oil Collector ............................................................. 54

5 CUSPIDOR AND SUPPORT CENTER ....................... 55

Product Overview................................................... 55

Service, Maintenance, and Adjustments ....................... 56

Bowl Rinse Flow Adjustment .......................................... 56

Adjusting the Cuspidor Cupfill and Bowl Rinse ........................56

Self-Contained Water System ......................................... 56

Illustrated Parts Breakdown ...................................... 57

Part Identification....................................................... 57

A-dec 200 Support Center ............................................. 58

A-dec 200 Cuspidor ..................................................... 60

Self-Contained Water Bottle .......................................... 61

Cupfill/Bowl Rinse Manifold ........................................... 62

6 ASSISTANT’S INSTRUMENTATION ........................ 63

Product Overview................................................... 63

Service, Maintenance, and Adjustments ....................... 64

Auto-air Holder .......................................................... 64

Positioning Assistant’s Holder ......................................... 64

Assistant’s Touchpad Connections .................................... 65

Vacuum Instrumentation ............................................... 65

Solids Collector .......................................................... 66

Illustrated Parts Breakdown ...................................... 67

Part Identification....................................................... 67

Telescoping Assistant’s Arm............................................ 68

Assistant’s Touchpad Assembly ........................................ 69

Assistant’s Auto-Air Holder............................................. 70

Assistant’s Standard Holder............................................ 72

7 UTILITIES .....................................................73

Product Overview................................................... 74

Shutoff Valves ............................................................ 74

Gauge and Pre-Regulator ................................................. 74

Service, Maintenance, and Adjustments ....................... 75

Air and Water Filter Replacement .................................... 75

Illustrated Parts Breakdown ...................................... 77

Part Identification....................................................... 77

Air Filter/Regulator Assembly ......................................... 78

Water Filter/Regulator Body Assembly............................... 79

8 DENTAL LIGHT...............................................81

Product Overview................................................... 82

Dental Light Specifications ............................................ 82

Nominal Light Intensity ................................................... 82

On/Off Button .............................................................. 82

Auto On/Off Feature ...................................................... 82

Service, Maintenance, and Adjustments ....................... 83

Circuit Breaker Location ............................................... 83

Intensity Switches ....................................................... 83

Dental Light Wire Connections on the 200 Dental Chair .......... 84

Dental Light Relay Circuit Board ...................................... 86

LED Identification .......................................................... 86

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Flexarm Adjustments ................................................... 87

Rotation Adjustments................................................... 87

Diagonal Adjustment ....................................................... 87

Vertical Adjustment ........................................................87

Bulb Replacement ....................................................... 88

Illustrated Parts Breakdown....................................... 89

200 Dental Light ........................................................ 89

9 TROUBLESHOOTING ........................................ 91

Dental Chair .......................................................... 91

Delivery System ..................................................... 98

Holders ...............................................................102

Utility Area ..........................................................102

Cuspidor..............................................................103

Dental Lights ........................................................107

Table of Contents

10 TUBING AND FLOW DIAGRAMS .........................109

A-dec Tubing ........................................................109

Antimicrobial AlphaSan and Color Tracer Markings ...............109

Chair Flow Diagram ................................................112

Delivery System Flow Diagram ..................................113

Assistant’s and Support Center Flow Diagram................114

Utilities Flow Diagram.............................................115

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A-dec 200 Service Guide

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INTRODUCTION

The A-dec 200 Service Guide provides service information for the A-dec 200 dental system, including the chair, programming, delivery system, cuspidor and support center, assistant’s instrumentation, utilities, and dental light. Users of this guide should understand basic operation and maintenance of dental and medical equipment, and use of flow diagrams.

CAUTION Possible injury or equipment damage. Service to be

performed by trained personnel only.

Get Support

For questions not addressed in this document, contact A-dec Customer Service using contact information for your region.

International Customer Service

2601 Crestview Drive Newberg, Oregon 97132 Telephone: 1 (503) 538-9471 or 1 (503) 538-7478 Fax: (503) 538-5911 Internet: www.a-dec.com

Inside this Guide

The following regulatory symbols may appear throughout the document.

NOTE Notes indicate additional information, and when it is

important that instructions are followed.

TIP Tips indicate tips or tricks to make installation, use, or

maintenance easier.

WARNING Warning indicates potential severe injury or death if

instructions are not followed properly.

CAUTION Caution indicates when failure to follow instructions

could result in damage to product or minor injury.

DANGER Danger indicates warnings of dangerous voltage and of

certain electrical shock.

BIOHAZARD Biohazard indicates potential infection if

instructions are not properly followed.

This guide contains service, maintenance and adjustments; flow diagrams; exploded parts breakdown of assemblies; and troubleshooting.

IMPORTANT Important indicates areas in which to refer to or use

specific instructions.

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A-dec 200 Service Guide

Cuspidor (page 55)

Dental Chair (page 7)

Assistant’s Instrumentation (page 63)

Foot Control

Footswitch

Solids Collector (page 66)

Utilities (page 73)

Support Center (page 55)

Delivery System (page 35)

Dental Light (page 81)

Touchpad (page 31)

Serial Number Location

A-dec 200 System

A-dec 200 system comes configured as shown below:

Figure 1. A-dec 200 Systems

2 86.0016.00 Rev A

Serial and Model Numbers

Introduction

Product serial and model number information can be found on the serial/ model number labels. When you contact customer service, the serial number helps identify the product and when it was manufactured.

Use Table 1 and Figure 2 to reference how to identify serial/model number information.

Table 1. M o nt h I d e n t i fi c a t i o n Ta b le

Letter Month Letter Month

A January G July

B February H August

C March I September

DApril JOctober

E May K November

FJune LDecember

Figure 2. Serial Number Label Example

200

(1) The REF number is the model number. (2) The first letter of the serial number indicates the month the product was manufactured. The first digit of the serial number is the year of manufacture (for example, L8 = December 2008).

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A-dec 200 Service Guide

Service Tools

This table lists the types of tools available from A-dec for servicing A-dec 200 equipment and their recommended use:

Table 2. Recommended Tools

Tool Tas k Part Illustration Part Number

Drive air pressure gauge Adjusting handpiece drive air pressure, 0-60 psi (4.13 bar)

This gauge does not fit the Borden 3-hole coupler

50.0271.00

Hemostat • Troubleshooting or repairing a unit

• Stopping air or water flow through tubing

Hex key set Servicing or installing A-dec equipment (plastic case included) 009.018.00

Loctite

O-ring tools Replacing O-rings during quick field repairs (fits the four

Panel mount gauge • Checking air/water pressure

Installing threaded fasteners to prevent loosening 060.001.00 (Red 271)

smallest O-ring sizes)

• Checking inline pressure gauge for testing purposes

009.008.00

060.002.00 (Blue 242)

009.013.00

026.118.00

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Table 2. Recommended Tools (continued)

CAUTION Use only A-dec Silicone lubricant or

the O-rings may be damaged.

Tool Tas k Part Illustra tion Part Nu mber

A-dec Silicone lubricant Lubricating internal moving parts such as O-rings, oral

evacuator valves, and bushings

Sleeve tool Aiding in securing 1/4" tubing sleeves and 1/8" uni-clamps 98.0072.00

98.0090.01

Introduction

Snap ring tool Installing and removing internal and external snap rings (fits

all snap rings used in A-dec equipment)

Tubing stripper Separating the extruded air and water lines in vinyl tubing 009.035.00

Umbilical stringer Routing additional tubing or wiring through existing umbilical

assemblies (12’ [3.66 meter] stringer with threading holes on both ends)

Valve test syringe Testing of pilot operated valves; used to apply a static

pressure of 5-75 psi (.34-5.17 bar)

009.007.00

009.015.00

98.0050.01

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A-dec 200 Service Guide

6 86.0016.00 Rev A

DENTAL CHAIR

This section provides detailed information related to service, maintenance, and adjustment of the A-dec 200 dental chair.

Contents

• Product Overview, page 8

• Service, Maintenance, and Adjustments, page 10

• Illustrated Parts Breakdown, page 17

Figure 3. A-dec 200 Chair

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A-dec 200 Service Guide

Master Toggle (Power On/Off)

Status Light

Chair Lift Arm

Chair Stop Plate

Status Light

Assistant’s Arm

Product Overview

Chair Load Capacity

Maximum Chair Capacity:

• Patient Load 136 kg (300 lbs.)

• Module/Accessory Loads (maximum off-center) with A-dec 200 system: 68 kg (150 lbs.) @ 406 mm (16")

Power and Status

The chair and system is controlled by the master toggle on the delivery system. The power should always be turned off for service. When the Adec logo on the touchpad or the status light on the chair lift arm are illuminated, the system is on and ready for use. If the status light blinks, the limit switch has been activated.

Figure 4. Power and Status

Limit Switch and Chair Lockout

If anything becomes lodged under the chair lift arm or assistant’s arm, a limit switch stops the downward motion of the chair. Pressing the chair stop plate or lifting up on the assistant’s arm activates the limit switches. Use the footswitch or touchpad to raise the chair, then remove the object.

The optional lockout kit inhibits the operation of the dental chair when a handpiece is removed from its holder and the foot control pressed. When this happens, the chair status light blinks quickly. To resume, replace the handpiece and use the footswitch or touchpad to raise the chair.

Figure 5. Chair Lockout Overview

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Circuit Board Components

Table 3. LED Identification Figure 6. Chair Circuit Board Components

LED Status Description

DS16 - AC power LED

DS15 - Status LED Off System is not functioning, no power or

DS17 - Data LED Off No DCS communication, not connected

DS6 Stop plate limit switch

DS4 - Chair lockout

DS3 and DS5 -

Chair potentiometers

DS7, DS13, DS12, DS14

Chair relay LEDs

DS8 Capacitor switch

DS9 Back up limit switch

DS10 Base up limit switch

DS11 off = relay is off; on = relay is on

DS1, DS2 Position 3 function selection

Off No 24 VAC power, tripped circuit

breaker, power supply turned off, no line voltage

Green, steady 24VAC at the terminal strip

circuit board has failed

Green, steady Normal operation

to the DCS, or DCS has failed

Green, steady Detects active DCS

Green, blinking Valid DCS Message

Off Closed, (normal)

Red Open, (activated)

Off Open, (normal)

Red Closed, (activated)

Off Potentiometer:

Not connected or bad connection Moving in wrong direction Limited range of motion, or Cable is not on wheel

Yello w, steady Normal operation

Yello w, fast blink Upper end of travel

Off Relay is off

On Relay is on

Dental Chair

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A-dec 200 Service Guide

Service, Maintenance, and Adjustments

Contents

• Potentiometers, page 11

• Hydraulic System, page 13

• Solenoids, page 14

• Test the Motor Pump, page 15

• Headrest Adjustments, page 16

• Chair Speed Adjustments, page 16

Factory Default Routine

When a new circuit board is installed in the chair, factory default routine needs to be run to learn the range of motion of the chair. The routine:

• Sets the base and back upper limits

• Calculates new presets based on actual range of motion of the chair

• Verifies that the potentiometers work

To start the factory default routine, place the “spare” jumper in the factory default position on the P17 test points of the chair circuit board (see "Circuit Board Components" on page 9 for reference).

When running the factory default routine the chair:

1. Moves base down

2. Moves base up

3. Moves back down

4. Moves back up

5. Moves base and back to Position 0

6. Beeps three times

NOTE The jumper must remain in the factory default

position to complete the factory default routine. The status LEDs on the standard and deluxe touchpads and the chair circuit board double blink while the factory default routine is running and after the routine is complete.

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Potentiometers

Actuator Pin

Switch Arm

Limit Switch

Mounting Bracket

Clamping Screws

25"

63.5 cm

Potentiometers provide the controller with current position values for the chair base and back. The controller saves the chair values when programmed and compares the values with current position values for the pre-position and auto-return functions.

Adjust the Base Up Limit Switch:

1. Remove the motor pump cover.

2. Loosen the two screws clamping the limit switch to the mounting

bracket.

Figure 7. Mounting Bracket

Dental Chair

Figure 8. Chair Position

4. Push the limit switch against the actuator on the drive gear until the

switch opens (clicks), then tighten the clamping screws. (See Figure 7).

5. Position the chair base down until the limit switch has closed, then

position the chair full base up. Check the distance between the top of the base plate to the flat area around the threaded stud the chair adapter mounts to. If the distance is incorrect, repeat steps 2 through 4.

3. Position the chair as shown in Figure 8.

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A-dec 200 Service Guide

Potentiometer Gear

Positioning Potentiometer

Limit Switch

Mounting Screw

Large Drive Gear

Limit Switch Mounting Screws

Bracket Mounting Screws

Switch Arm

Drive Shaft

Urethane Tubing 3/8" OD

Potentiometer Shaft

Tip

Potentiometer Shaft

Clockwise

Counterclockwise

Adjust the Base Positioning Potentiometer

1. Remove the motor pump cover and position the chair base down.

2. Use a 3/16" hex key to remove the limit switch and mounting screw. See

Figure 9.

3. Turn the potentiometer gear counterclockwise until it stops.

4. Align the potentiometer assembly, then turn the potentiometer gear

clockwise two teeth.

5. Reinstall the limit switch and potentiometer assembly. Make sure the potentiometer gear does not turn and the two gears mesh properly.

6. Ensure that the electrical connections to the limit switch and positioning potentiometer are property set.

7. While observing the two gears for binding, lower the chair base.

CAUTION Do not raise to the full base up position until after you

have checked the base up limit switch for proper adjustment. the chair may go into hydraulic lock if not adjusted properly.

8. Reinstall the cover, and program the auto-positioning functions.

Figure 9. Base Potentiometer

Adjust the Back Potentiometer

1. Position the chair back to its full up position.

2. Disconnect the limit switch wiring harness from the limit switch.

3. Remove the limit switch mounting screws and limit switch from the

bracket. Do not bend the switch arm.

4. Remove the bracket mounting screws.

5. Remove the drive shaft from the potentiometer shaft.

6. Remove the drive shaft from the chair by moving it toward the chair

backrest, and slightly to the side to dislodge it from the holder.

Figure 10. Remove Drive Shaft

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7. Turn the potentiometer shaft clockwise until it no longer turns, then

turn the shaft counterclockwise 1/8" of a turn

Figure 11. Adjust Back Potentiometer

8. Reinstall the shaft.

Hydraulic System

Hydraulic Cylinders

Hydraulic Fluid Reservoir

Solenoid/Manifold Assembly

Motor Pump

The hydraulic system consists of:

• Hydraulic fluid reservoir

The fluid level in the reservoir can be seen through the sides of the reservoir and is serviced via a top fill cap.

•Hydraulic cylinders

The hydraulic cylinders control the base lift and back functions. Springs and gravity retract the rod during base and back down functions.

• Motor-driven hydraulic pump

The hydraulic pump and the starter capacitor supply hydraulic fluid from the reservoir, under pressure, to the chair lift and tilt hydraulic cylinders for back up and base up functions.

• Solenoid/manifold assembly

This assembly gates hydraulic fluid to and from the two cylinders. Depending on the chair function called for, the controller selects which solenoid-actuated manifold valves are opened or closed. The solenoid/ manifold assembly also includes four adjustable needle valves used to restrict or divert the flow of hydraulic fluid to and from the lift and tilt cylinders. These valves provide the rate of travel adjustment for chair base and back movement.

Dental Chair

Figure 12. Hydraulic System

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NOTE If cable ties are present in the product and you need to

remove them for servicing, make sure to replace the ties after service is completed.

A-dec 200 Service Guide

Hydraulic Manifold

O-ring

Poppet

Poppet Sleeve

Washer

Solenoid

ID Washer (Solenoid Specifications)

P10

Solenoids

Tes t th e Sol eno i d

To test the magnetic pull of the solenoid hold the tip of screwdriver near a solenoid and activate the appropriate chair function. You should feel the tug of the magnetic field generated around the solenoid.

Figure 13. Test the Solenoid

Remove and Replace the Solenoid

1. Lower the chair base and back to the full down position. Remove the

motor pump cover, then unplug the chair.

WARNING The solenoid coils are powered by line voltage (100,

120, or 240 V). Failure to unplug the chair may result in serious injury from electrical shock.

4. Using a flat-tipped screwdriver, loosen and then remove the sleeve and

poppet from the manifold assembly.

WARNING To prevent the possibility of over-heating and failure,

replace the entire solenoid assembly.

5. Remove the o-ring from inside the manifold, and install a new o-ring.

6. Install a new sleeve and poppet; tighten the poppet sleeve using a flat-

tipped screwdriver.

7. Install a new coil on the plunger. Do not overtighten the retaining nut.

8. Strip approximately 1/4" of insulation from the wires cut in step 2, and

install a crimp-on butt-type connector on each wire.

9. On the new solenoid, cut the wiring to length allowing enough to reach

the crimped-on connectors. Strip approximately 1/4" of insulation from the wires and crimp each wire into a connector.

Figure 14. Remove and Replace Solenoid

2. Using a pair of wire cutters, cut the wiring to the faulty solenoid at

3. Using a 9/16" wrench, remove the solenoid retaining nut and slide the

14 86.0016.00 Rev A

about mid point between the solenoid and connector P10.

coil off the poppet sleeve.

CAUTION Use caution when removing and replacing the coil. The

poppet sleeve is easily bent. Even slight bending of the sleeve will result in the malfunction of the solenoid valve.

Tes t t he Mot or Pu mp

Red Wire

White Wire

Motor Pump

This test requires the use of a current pickup probe.

• Clip the probe onto the red wire going to the motor pump.

• Use the footswitch or touchpad to raise the chair.

You should read 5 Amps (maximum) of current for 120 V motor pump, or

2.5 Amps (maximum) of current for 240 V motor pump.

Figure 15. Test Motor Pump

Dental Chair

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A-dec 200 Service Guide

Glide Bar

Locking Knob

Adjust chair

base speed.

Adjust chair back speed.

Headrest Adjustments

Turn the locking knob clockwise to lock it into the desired position. Slide the headrest and glide bar up or down to adjust the height.

WARNING When the glidebar has reached its maximum

recommended working height, a warning will be visible on the patient’s side of the glide bar. Do not use the headrest in a position where this warning is visible.

Figure 16. Headrest Adjustments

Chair Speed Adjustments

The speed for moving the chair seat and back can be adjusted. Use a 3/32" hex key to adjust the chair base speed and back speed on the manifold (see

Figure 17. Adjust Manifold for Chair Speed

NOTE If cable ties are present in the product and you need to

remove them for servicing, make sure to replace the ties after service is completed.

16 86.0016.00 Rev A

Illustrated Parts Breakdown

Dental Chair

Part Identification

In this section, you will find serviceable components tables that correspond to the illustrations. The tables identify all parts and kits, including those that are not for sale. Parts that are not for sale are indicated with the symbol shown below:

Chair Covers

Figure 18. A-dec 200 Dental Chair

†— Indicates that the individual part is not available for sale. These parts

are typically part of a kit and/or larger assembly that is for sale.

Contents

• Chair Covers, page 17

• Upper Chair Assembly, page 18

• Mid Chair Assembly, page 20

• Lower Chair Assembly, page 22

• Headrest Assembly, page 23

• Motor Pump and Capacitor Assembly, page 24

• Hydraulic Manifold Assembly, page 26

• Hydraulic Tank Assembly, page 27

• Base Limit Switch Assembly, page 27

• Back Potentiometer Assembly, page 28

• Base Position Potentiometer Assembly, page 29

Item Part Number Description

1 61.3821.00 Rear chair cover

2 61.3847.00 Bottom cover

3 61.3846.00 Utility cover

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4 61.2239.01 Lift arm cover

5 61.2242.00 Umbilical routing bracket

A-dec 200 Service Guide

Upper Chair Assembly

Item Part Number Description

1 — Double articulating headrest assembly (see page 23)

2 61.3824.00 Backrest cover

3 61.3791.00 Armrest release button

4 013.052.00 Compression spring, .843 OD X 1.375 FL

5 61.1245.02 † Arm support, LH

6 004.157.00 Wave spring washer, .990 OD stainless steel

7 004.126.00 Flat washer

8 61.3827.00 Armrest cover

9 61.3790.01 Armrest pivot plate, LH

10 005.123.01 Button head socket screw, 10-32 X 5/8"

11 61.3108.00 Flanged bearing

12 001.164.00 Socket shoulder screw, 1/2-13 X 5/8 X 5/8

13 61.3788.01 Pivot bolt cover

14 61.2740.00 Backrest link pin

15 016.131.00 Flanged bearing

16 007.069.00 Set screw, socket 1/4-20 X 1/4

17 61.3792.00 Back link

18 61.3789.01 Armrest pivot plate, RH

19 005.147.00 Flat head socket screw, 1/4-20 X 1-1/4

20 006.122.01 Retainer nut, 10-32 zinc

21 61.2743.00 Brake shoe

22 61.1247.02 † Arm support, RH

23 001.268.00 Socket screw, 1/4-20 X 3/30 mm stainless steel

24 002.136.00 Flat head socket screw, 1/4-20 X 1/38

† Indicates that the individual part is not available for sale

18 86.0016.00 Rev A

Figure 19. Upper Chair Assembly

1 Headrest Assembly (see page 23)

Dental Chair

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A-dec 200 Service Guide

Mid Chair Assembly

Item Part Number Description Item Part Number Description

1 61.1309.00 Tilt slide block 21 35.1749.00 Chair mount adaptor

2 61.1311.00 Tilt cylinder clevis rod 22 004.171.00 Thrust washer

3 61.1267.00 Tilt cylinder assembly 23 006.124.00 5/8-18 UNF-2B ESNA 4N zinc

4 010.031.00 E-clip 24 025.072.00 Cable tie mounting block

5 61.2076.00 Roller arm link 25 005.143.00 Button head socket screw, 1/4-20 X 3/8"

6 61.2078.00 Toeboard axle 26 61.1294.00 † Lower structure link

7 61.2293.00 Linkarm roller 27 41.1145.00 Umbilical support

8 005.008.01 Socket head screw, 1/4-20 X 1/2" 28 41.1143.00 Umbilical restraint

9 025.044.00 Clamp 29 61.2095.00 † Lift arm

10 61.1308.00 Channel guide 30 004.149.00 Flat neoprene washer, .680 ID

11 013.054.00 Spring 31 004.104.00 Flat steel plated washer, .640 ID

12 002.134.00 Socket head screw, 1/4-20 X 1/4" 32 — Lift cylinder

13 61.1221.00 Base limit switch assembly 33 61.1285.00 Lift pin

14 61.1224.00 Back position potentiometer assembly 34 011.046.00 Clip pin

15 002.023.00 Head screw, 3/8-16 X 1-1/4 35 41.1144.00 Umbilical retainer

16 61.1314.00 Wear pad 36 001.165.00 Socket head shoulder screw

17 002.120.00 Socket head patch screw, 1/4-20 X 1" stainless steel 37 001.164.00 Socket head shoulder bolt

18 004.148.00 Flat nylatron washer, .630 ID 38 61.3825.00 † Swivel bracket

19 — Seat armature 39 61.3826.00 † Upper structure, gray 3

20 61.1270.00 Stud

† Indicates that the individual part is not available for sale

20 86.0016.00 Rev A

Figure 20. Mid Chair Assembly

Lower Chair (see page 22)

6 7

10 11

13 Base Limit Switch (see page 27)

30 31

14 Back Potentiometer (See page 28)

Dental Chair

86.0016.00 Rev A 21

A-dec 200 Service Guide

Motor Pump Assembly (see page 24)

1 2

5 6

7 8

Upper Chair Assembly (see page 18)

Mid Chair Assembly (see page 20)

Lower Chair Assembly

Item Part Number Description

1 010.031.01 E-clip

2 61.1285.00 Pivot pin

3 001.163.00 Hex head cap screw, 1/2-13 X 1-1/4

4 004.148.00 Flat nylatron washer, .630 ID

5 001.165.00 Socket head shoulder screw

6 005.008.01 Socket head screw, 1/4-20 X 1/2

7 61.1277.01 † Sub base

8 61.3848.00 Floorbox/pump cover

9 61.1650.00 Foot switch/foot control bracket

10 61.2037.01 Baseplate

11 61.1286.00 Bracket

12 005.143.00 Button head socket screw, 1/4-20 X 3/8

13 61.1221.00 Base position potentiometer assembly

14 61.1295.00 Gear

Figure 21.

Lower Chair Assembly

† Indicates that the individual part is not available for sale

22 86.0016.00 Rev A

Headrest Assembly

Item Part Number Description Item Part Number Description

1 61.1232.02 Knob, locking headrest 9 61.2121.00 Clamp bar

2 004.061.00 Washer 10 61.2190.00 Pivot block

3 016.129.00 Bearing, thrust needle, .500 ID 11 61.2248.00 Pivot shaft

4 005.124.00 Button head screw, 10 - 32 x 1 12 61.2338.00 Pivot pin

5 61.3762.01 Cover, front 13 61.3762.01 * Rear cover

6 61.2172.00 Tube spacer 14 61.0816.00 Bushing

7 004.136.00 Washer, thrust bearing, .500 ID 15 61.2267.00 Cushion back cover

8 61.1272.00 † Glidebar

† Indicates that the individual part is not available for sale

* Sold as a matching set

Figure 22. Headrest Assembly

Dental Chair

86.0016.00 Rev A 23

A-dec 200 Service Guide

Motor Pump and Capacitor Assembly

Item Part Number Description

1 61.1339.00 Hydraulic tank

2 002.052.00 Pan head phillips screw, 10-32 X 3/8

3 004.118.00 Nylatron washer, .188 ID

4 004.230.00 Stainless steel washer, .203 ID

5 041.529.00 Boot

6 041.627.00 Capacitor, 50 UF 240 V, 50/60 HZ

7 001.164.00 Screw

8 61.1327.00

61.1328.00

9 002.100.01 Socket head screw, 6-32 X 1-1/4

10 61.1338.00 Motor pump tray

11 61.1332.00

61.1333.00

61.1334.00

12 041.428.00 Standoff

13 90.1029.02 Chair circuit board, 100-240 Volt

Motor pump assembly, 100/100-115 V Motor pump assembly, 240 V

Hydraulic manifold assembly, 100 Volt Hydraulic manifold assembly, 120 Volt Hydraulic manifold assembly, 240 Volt

24 86.0016.00 Rev A

Figure 23. Motor Pump and Capacitor

3 4

Dental Chair

86.0016.00 Rev A 25

A-dec 200 Service Guide

Hydraulic Manifold Assembly

Item Part Number Description Item Part Number Description

1 002.118.02 Screw, button head socket 4 61.1335.00

61.1336.00

61.1337.00

2 61.0460.00 Flow adjust screw with o-ring 5 030.015.02 O-ring, package of 10

3 030.004.02 O-ring, AS568-004 package of 10 6 61.1333.00

61.1334.00

Figure 24. Hydraulic Manifold

Solenoid, 8-watt, 100 V, yellow wires Solenoid, 8-watt, 120V, black wires Solenoid, 8-watt, 240 V, red wires

Manifold assembly, hydraulic, 120 V Manifold, assembly, hydraulic, 240V

26 86.0016.00 Rev A

Dental Chair

Hydraulic Tank Assembly

Item Part Number Description

1 006.112.00 Retainer Nut, 3/4"

2 61.1489.00 Pick-Up Tube Solder Assembly

3 004.161.00 Rubber Washer

4 61.1339.00 Hydraulic Tank

Figure 25. Hydraulic Tank Assembly

Base Limit Switch Assembly

Item Part Number Description

1 001.021.00 Socket Head Screw, 4040 X 1/2 Stainless Steel

2 044.184.00 Switch, 15 Amp 125 Volt

3 61.1315.00 Mounting Bracket

Figure 26. Base Limit Switch Assembly

86.0016.00 Rev A 27

A-dec 200 Service Guide

Back Potentiometer Assembly

Item Part Number Description

1 61.1225.00 Helical Drive Shaft

2 025.113.00 Compression ring

3 002.134.00 Socket Head Screw, 1/4-20 X 1/4

4 041.372.00 Potentiometer, 5 K Ohm

5 61.1226.00 Mounting Bracket

Figure 27. Back Potentiometer

28 86.0016.00 Rev A

Base Position Potentiometer Assembly

Item Part Number Description

1 002.024.00 Socket Head Screw, 4-40 X 3/4

2 60.0080.00 Mounting Plate

3 041.372.00 Potentiometer, 5 K Ohm

4 61.1223.00 Base Position Mounting Bracket

5 044.184.00 Switch, 15 Amp, 125 Volt

6 61.1367.00 Limit Switch Mounting Plate

7 002.120.00 Socket Head Patch Screw, 1/4-20 X 1 Stainless Steel

8 61.2625.00 † Gear, 10 Tooth, 24 Point

† Indicates that the individual part is not available for sale

Figure 28. Base Potentiometer

Dental Chair

86.0016.00 Rev A 29

A-dec 200 Service Guide

30 86.0016.00 Rev A

PROGRAMMING

Touchpad

Footswitch

The A-dec 200 product offers the option of having a standard touchpad. The touchpad centralizes treatment room controls into one touch surface including the chair, light, cuspidor controls, and auxiliary equipment.

NOTE

• The A-dec 200 product ships with a non-functioning cuspidor board. If the system has a touchpad and cuspidor, an upgrade to the cuspidor board is required to allow control of the cuspidor functions with the touchpad.

• If the system has a touchpad and dental light, the dental light circuit board is required (located in the floor box) to allow control of the dental light from the touchpad.

Figure 29. Touchpad or Footswitch Programming

86.0016.00 Rev A 31

A-dec 200 Service Guide

Entry/Exit

Treatment 1

Treatment 2

Program Button

X-ray/Rinse

Program Button

X-ray/Rinse

Treatment 2

Entry/Exit

Treatment 1

Touchpad

To u c h p a d O p t i o n s

The A-dec logo on the touchpad indicates the system status. If it appears as solid blue, the system is on and ready for use.

Chair Positions

The chair direction arrows on the standard and deluxe touchpads allow you to manually move the chair base up/down and back up/down. Table lists the icons and the action of each icon.

Figure 30. Chair Position Touchpad Button

Footswitch

Table 4. Chair Preset Positions

Footswitch/Touchpad Description

Entry/Exit: Positions chair for patient entry/exit. On

systems with a doctor’s touchpad, it also turns the dental light off.

Treatment 1: Positions the chair base and back down. On systems with a doctor’s touchpad, it also turns the dental light on.

Treatment 2: Positions the chair base down and back up. On systems with a doctor’s touchpad, it also turns the dental light on.

X-ray/Rinse: Moves the chair for either x-ray or rinse position. Press again to move the chair to the previous position. On systems with a doctor’s touchpad, also turns the dental light off or back on.

Chair Preset Buttons

Use the program buttons to assign and save chair preset positions. To program the chair presets Entry/Exit, Treatment 1, and Treatment 2:

1. Use the manual controls to adjust the chair position as desired.

2. Press and release the Program button. One beep indicates programming

mode is on.

3. Within four seconds, press the chair position button you wish to reset

(for example and ). Three beeps indicate the new setting is programmed into memory.

Chair Preset Position Buttons

Chair position buttons are factory preset to automatically move the chair (see Figure 30).

32 86.0016.00 Rev A

X-Ray/Rinse Button

The x-ray/rinse preset button moves the chair and patient into an upright position for x-rays or cuspidor access. To change the function to an additional programmable chair position:

1. On the touchpad or footswitch, press and hold the power button and

Dental Light Button

LED Indicator

the x-ray/rinse button at the same time for three seconds.

○ One beep indicates the button can be configured as Treatment 3.

○ Three beeps indicate that the X-ray/Rinse button has been

configured as the x-ray/rinse function (toggles between x-ray/rinse and the previous position).

Dental Light

The dental light can be operated from the manual 3-position switch or the optional touchpad. To operate the touchpad, press and hold the button to turn the light off. Press the light button to choose between two intensities. When the light is in the composite setting, the LED indicator on the touchpad flashes.

2. Program the preset position as instructed under "Chair Positions" on

page 32.

TIP If the X-ray/Rinse button is changed to a preset position, it

operates the same as treatment buttons 1 and 2.

Figure 31. Dental Light Operation

Auto On/Off

The optional auto on/off feature turns on the light when the chair back reaches a treatment position. Press or and the dental light turns off.

To disable the auto on/off feature, press and hold and simultaneously for three seconds. One beep confirms the dental light on/ off function is off.

To enable the auto on/off feature, press and hold and simultaneously for three seconds. Three beeps confirm the auto on/off feature is activated.

86.0016.00 Rev A 33

A-dec 200 Service Guide

Bowl Rinse Button

Cupfill Button

Cuspidor Cupfill and Bowl Rinse

The cuspidor cupfill and bowl rinse functions are dependent upon your specific configuration.

Customize Cupfill and Bowl Rinse Functions

Perform this operation with the doctor’s touchpad only.

Standard Cuspidor (no touchpad)

Press and hold the cupfill button on the cuspidor for the desired amount of water. Water will continue to flow until the button is released.

Press the bowl rinse button on the cuspidor once for a 10-second rinse. For continuous rinse, hold the button down. When the button is released, the water will continue to flow for 10 additional seconds.

Cuspidor with Optional Touchpad

If your system includes a touchpad, you can use the buttons on the touchpad or the cuspidor to operate and program bowl rinse and cupfill functions:

Table 5. Cupfill and Bowl Rinse Functions

Button Description

Cupfill Button:

• Press the Cupfill button for a timed operation. The factory preset is a 2.5 second fill.

• Press and hold the Cupfill button for manual operation.

Bowl Rinse Button:

• Press the Bowl Rinse button for a timed operation. The factory preset is a 30 second rinse.

• Press and hold the Bowl Rinse button for manual operation.

1. Press on the touchpad or press and hold both the cupfill and bowl

rinse buttons on the cuspidor (see Figure 32). Release them when you hear one beep.

2. Press and hold the Cupfill ( ) or Bowl Rinse ( ) button for the

desired amount of time.

3. Release the button. Three beeps confirm the setting.

TIP Press twice in less than two seconds to activate the

continuous operation mode. Press the button once to end the continuous bowl rinse mode.

Figure 32. Cuspidor Tower Cupfill and Bowl Rinse Buttons

34 86.0016.00 Rev A

DELIVERY SYSTEM

This section provides information related to service, maintenance, and adjustments of the A-dec 200 delivery system.

Contents

• Product Overview, page 35

• Service, Maintenance, and Adjustments, page 37

• Illustrated Parts Breakdown, page 47

Product Overview

A-dec 200 delivery system has been designed to mount on the A-dec 200 Support Center. The support center mounts to the chair using a post mount. The A-dec 200 delivery system provides the air and water used to operate the handpieces, syringes and accessories, and electrical power and data control of other modules.

The A-dec 200 standard configuration has a balanced flexarm with manual brake, three handpiece control block positions (3-position block is standard), a control head with room to house integrated accessories, and an autoclavable syringe.

Figure 33. A-dec 200 Delivery System

86.0016.00 Rev A 35

A-dec 200 Service Guide

Air Coolant Tubing (Yellow)

Water Coolant Tubing (Blue)

Drive Air Tubing (Clear)

(Exhaust - to Oil Collector)

(Tubing From Holder)

Air Coolant

Water Coolant

Drive Air (ribbed)

Water Coolant

Air Coolant

Exhaust Air

Drive Air

A-dec Tubing

A-dec products use four sizes of outside diameter tubing: 1/8", 1/4", 3/8", and 5/16". The A-dec 200 delivery system uses standard A-dec tubing and vinyl handpiece tubing. See "Tubing and Flow Diagrams" on page 109 to identify tubing. See "Handpiece Tubing Replacement" on page 42 for instructions on replacing tubing.

Table 6. A-dec Handpiece Tubing Cross Reference Table

Color Function

Clear Drive air

Blue Water coolant

Yellow Air coolant

Figure 34. A-dec Handpiece Tubing Identification

The handpiece tubing connects to the control block using tubing connectors and the appropriate A-dec tubing.

Figure 35. Vinyl Handpiece Tubing Control Block Connections

36 86.0016.00 Rev A

Service, Maintenance, and Adjustments

Tension Set Screw

Tu r n C lo ck wi se

Adjust Flexarm Height

Delivery System

Contents

• Flexarm Adjustments, page 37

• Instrument Holder Adjustments, page 38

• Control Block, page 39

• Handpiece Control Adjustments, page 40

• Oil Collector, page 41

• Handpiece Tubing Replacement, page 42

• Quad Voltage Intraoral Light Source (QVIOLS), page 43

• Intraoral Light Source Length and Voltage, page 45

Flexarm Adjustments

• Tension: If the control head flexarm drifts right or left, use a 3/32" hex key to adjust the tension setscrew. Turn the screw clockwise to tighten or counterclockwise to loosened the tension.

• Height: Turn the knob counterclockwise to disengage the flexarm brake and adjust the height. Turn the knob clockwise to lock the position.

Figure 36. Flexarm Adjustments

86.0016.00 Rev A 37

A-dec 200 Service Guide

Screw

Instrument Holder Adjustments

Rotate the holders independently. Pull the holder slightly away from the adjacent one, rotate to the desired position, then release.

CAUTION Twisting the holder without pulling it away from the

adjacent one will damage the mechanism.

Figure 37. Doctor’s Holder Adjustments

Handle

To position the handle, remove the screw at the end of the handle, adjust the handle for use, then replace and tighten the screw.

Figure 38. Handle Adjustment

38 86.0016.00 Rev A

Control Block

The control block might need to be removed to service the control head. For example, you many need to remove the control block to change a diaphragm, to change a cartridge, or to service o-rings.

Remove the Control Block

1. Remove the cover.

2. Loosen and remove the two screws a that secure the control block to the

control delivery system frame.

3. Lift the control block up from the base of the control center.

Figure 39. Remove Control Top

Delivery System

Figure 40. Remove Control Block on Delivery Systems

86.0016.00 Rev A 39

A-dec 200 Service Guide

Air, Water (Blue) Coolant Keys

Drive Air Key

Handpiece Holder

Foot Control Wet/Dr y Toggle

Water Coolant Key

Handpiece Holder

Foot Control

Air Coolant Key

Handpiece Control Adjustments

Adjust the Water Coolant

1. Turn the air coolant, water coolant, and drive air all the way down.

2. Lift a handpiece from the holder, and flip the wet/dry toggle to water

(towards the blue dot).

3. Step on the foot control.

4. Adjust the water coolant flow until there is 1 drop every 2 seconds.

Figure 41. Adjust Water Coolant

Adjust the Air Coolant

1. Lift a handpiece from the holder, and step on the foot control.

2. Adjust the air coolant flow until the spray is a fine mist.

Figure 42. Adjust Air Coolant

40 86.0016.00 Rev A

NOTE Contact A-dec Customer Support for information on

servicing the foot control or syringe. See "Get Support" on page 1.

Delivery System

Drive Air Key

Holder

Pressure Gauge

Toggle and Foot Control

Adjust the Drive Air Pressure

NOTE Use a handpiece pressure gauge attached to the handpiece

tubing for exact drive air measurement. See the manufacturer’s handpiece documentation for the drive air pressure specification.

1. Lift a handpiece from the holder.

2. Install a pressure gauge.

3. Flip the toggle to dry, and step on the foot control.

4. Adjust the drive air pressure according to manufacturer’s

recommendations.

○ To increase flow, turn the key counterclockwise.

○ To decrease flow, turn the key clockwise.

Figure 43. Adjust Drive Air Pressure

Oil Collector

The oil collector needs to be serviced once a week for normal use and more often for heavier use. To service:

1. Unsnap the oil collector cover located under the control head and discard the old gauze.

CAUTION Do not remove the foam pad located inside the oil

collector cover.

Figure 44. Oil Collector Removal

2. Fold a new gauze pad (51 mm x 51 mm [2" x 2"]) into quarters and place

inside cover.

3. Snap the oil collector cover closed.

86.0016.00 Rev A 41

A-dec 200 Service Guide

Handpiece #3

Handpiece #2

Handpiece #1

Air Coolant

Water C ool ant

Drive Air

Handpiece Tubing Replacement

1. Remove the delivery system cover.

2. Cut the handpiece tubing you are replacing from the colored A-dec

tubing/control block.

3. Pull the old handpiece tubing out of the control head.

4. Route the new handpiece tubing through the base of the control head.

5. Connect the new handpiece tubing to the control block using the

connectors and colored tubing previously used.

The A-dec colored tubing is identified by it’s color (see bullets below and Figure 35).

○ Yellow tubing to the air coolant port

○ Blue tubing to the water coolant port

○ Clear tubing to the drive air port

NOTE Vinyl tubing is not color coded. For vinyl tubing

identification, see Figure 35 on page 36.

6. Replace the delivery system cover.

Figure 45. Handpiece Barb Connection

Adjust Tubing Length

1. Adjust the length of the tubing so it drapes with syringe tubing.

2. Insert the tubing in the tubing retainers.

Figure 46. Adjust Length of Handpiece Tubing

42 86.0016.00 Rev A

Quad Voltage Intraoral Light Source (QVIOLS)

Part Number: 90.1168.00

The quad voltage intraoral light source (QVIOLS) provides four independent fiber optic voltage outputs. Each output is adjustable from 3VDC to 7VDC at 1.5 Amps. Only one output can be on at a time. Activating an input on the QVIOLS turns on its respective output.

Table 7. QVIOLS Circuit Board Descriptions

Item Description

1DS1 AC Power LED

2 DS2 Status LED

3DS3 Data LED

4J1 - 24VAC Input

5J1 - 0VAC Input

6 P2 - DS4 - normally closed jumper

7P1 Data Port

8 J3 Switch input Common

9 J3 Switch Input #1

10 J2 Switch Input #2

11 J2 Switch Input #3

12 J2 Switch Input #4

13 J4 Light Source Output #1

14 J4 Light Source Output #2

15 J5 Light Source Output #3

16 J5 Light Source Output #4

17 S1 Decrease Lamp Output

18 S2 Increase Lamp Output

Delivery System

Figure 47. QVIOLS Circuit Board

NOTE On the A-dec 200 product, a jumper should always

be located within P2, and DS4 should be On.

86.0016.00 Rev A 43

A-dec 200 Service Guide

Intraoral Light Source Outputs

Decrease and Increase Buttons

Intraoral Light Source Adjustments

The intraoral light source (IOLS) voltage adjustment on the A-dec 300 doctor’s delivery system is located on the QVIOLS circuit board. Each output voltage is preset to 3.2VDC at the lamp terminals when the lamp is

on.

WARNING The Length and Voltage Table, page 45, is only

valid for devices rated for 3.5 VDC and 0.75 Amp 26AWG wires. For devices drawing a different amount of current, requiring a different voltage, or with a different wire gauge, please contact A-dec Customer Service. (See "Get Support" on page 2.)

1. Use a 7/64" hex key to remove the control head cover.

2. Set the voltmeter to DC voltage and place its probes on the IOLS output

terminals for the handpiece you are testing.

3. Lift the handpiece from its holder.

NOTE When the intraoral light source output is On, its

respective LED is On. for example, LED DS6 is On when handpiece #2’s intraoral light source is activated.

Figure 48. Intraoral Light Source Voltage

4. Use the buttons behind the terminal to adjust the voltage according to

the Length and Voltage Table, page 45.

44 86.0016.00 Rev A

Intraoral Light Source Length and Voltage

Table 8. Length and Voltage Table

Voltage at terminal strip

Wire length in

A-dec tubing

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

48 122 3.40 108 274 3.69

54 137 3.43 114 290 3.72

60 152 3.46 120 305 3.75

66 168 3.49 126 320 3.78

72 183 3.52 132 335 3.81

78 198 3.55 138 351 3.84

84 213 3.58 144 366 3.87

90 229 3.61 150 381 3.90

96 244 3.64 156 396 3.93

102 259 3.67

A-dec/W&H, Bien Air or other bulbs rated

at 3.5V

Length and Voltage

Wire length in

A-dec tubing

Delivery System

Voltage at terminal strip

A-dec/W&H, Bien Air or other bulbs

rated at 3.5V

NOTE Table 8 pertains to fiber-optics powered with 26AWG wires, 0.75 Amp loads, and a desired bulb voltage of 3.2 VDC. For

fiber-optics powered with 26AWG wires and other ratings, use the equation:

T = (Z x 0.006 x Y) + X where:

T: Terminal strip voltage(VDC) X: Desired voltage at lamp (VDC) Y: Rated lamp/load current (in Amps) Z: Length of 26AWG wire (inches) from terminal trip to lamp

86.0016.00 Rev A 45

A-dec 200 Service Guide

46 86.0016.00 Rev A

Illustrated Parts Breakdown

Delivery System

This section contains illustrated parts breakdowns specific to the A-dec 200 delivery system.

Part Identification

†— Indicates that the individual part is not available for sale. These parts

are typically part of a kit and/or larger assembly that is for sale.

Contents

• A-dec 200 Delivery System, page 48

• Holder Assembly, page 50

• Control Block Assembly, page 52

• Toggles Assemblies (Flush Toggle and Master On/Off Toggle), page 53

• Oil Collector, page 54

86.0016.00 Rev A 47

A-dec 200 Service Guide

A-dec 200 Delivery System

Item Part Number Description

1 39.2027.00 Pad

2 75.2275.00 Control housing top cover

3 002.140.00 Screw, button head socket, 10 - 32, stainless steel

4 001.073.00 Screw, 6-32 X 1/4" pan head SEMS Phillips

5 90.1168.00 QVIOLS

6 43.0133.00 † PCB housing

7 75.2276.00 Control head chassis

8 38.1839.00 A-dec 200 control block assembly

9 005.002.00 Screw, 1/4-20 x 5/8, button head socket

10 027.057.00 Control block knob, light blue

11 027.057.01 Control block knob, gray

12 001.016.01 Screw, 10-32 X 3/8" Socket

13 77.0059.01 Oil collector, white 2

14 75.2256.00 Control housing bottom Cover

15 33.0173.00 Master on/off valve assembly, 3-way gray toggle, up-R

16 33.0009.03 Flush toggle valve assembly, 2-way gray MOM , up-L

17 006.009.00 Hex nut, 15/32-32 X 9/16" X 3/32

18 006.136.00 Nut, 1/4 - 20 x 17 mm, chrome

19 001.112.03 Screw, 1/4-20 X 1-1/2" Button Head Socket

20 77.1108.00 Cover, doctor’s handpiece holders arm

21 005.012.03 Screw, 10-32 X 3/8" stainless steel socket head

22 — Handle and Holders Assembly (see page 52)

23 005.002.00 Screw, 1/4-20 X 5/8" button head socket

24 006.016.00 Nut, hex, KEPS, 10-32 X 3/8 X 5/32

25 43.0187.00 Air electric switch assembly

26 025.036.01 Cable tie, package of 10

27 35.1763.00 Mount, Chassis, Control Head

† Indicates that the individual part is not available for sale

48 86.0016.00 Rev A

Figure 49. A-dec 200 Delivery System

13 Oil Collector (See page 54)

8 Control Block Assembly (See page 52)

22 Holder Assembly (See page 50)

Delivery System

86.0016.00 Rev A 49

A-dec 200 Service Guide

Holder Assembly

Item Part Number Description

1 90.1186.00 Standard Touchpad Cap/PCB Assembly, White 2

2 35.1758.00 Holder Turret Bolt, 2"

3 004.060.00 Washer, .875 X 1.125 X .020 Thick

4 041.663.00 Bushing

5 77.0335.01 Touchpad Base, White 2

6 003.078.00 Screw, 4-40 X 1/4" Socket Head

7 004.237.00 Wave Spring Washer, 1.125" OD

8 99.1137.00 Turret Base Axle

9 77.1088.00 Handle

10 007.060.00 Set Screw, 1/4-20 X 1/2" Flat Point

11 90.1216.00 Holder End Cap Nut

12 99.0698.00 Inner Hub Bearing

13 90.0713.00 Inner Hub

14 35.1759.00 Turret Stop Spacer

15 77.1107.01 Doctor’s Handpiece Holders Arm

16 006.121.00 Hex Jam Nut, 5/8 -18, Grade 5

17 001.112.03 Screw, 1/4-20 X 1-1/2" Button Head Socket

18 99.1142.00 † Handpiece holder

19 99.1140.00 † Saliva Ejector/Syringe Holder, 2" Diameter, No/V

20 99.0689.01 * Cap

21 013.011.00 Spring

22 99.0692.00 * Holder End Cap Nut

23 99.0710.01 End Cap Assembly

24 99.1138.00 Holder Axle

† Indicates that the individual part is not available for sale

* Available only with p/n 99.0710.01

50 86.0016.00 Rev A

Figure 50. Holder Assembly

22 21

24 8

Delivery System

86.0016.00 Rev A 51

A-dec 200 Service Guide

Control Block Assembly

Item Part Number Description Item Part Number Description

1 38.0712.00 Water coolant stem (with O-ring) 7 38.0713.00 Air coolant stem (with O-ring)

2 38.0710.00 † Block cap 8 021.016.01 Plug, package of 10

3 38.0711.01 Diaphragm, package of 5 9 004.005.02 Washer, package of 10

4 38.1839.00 Control block assembly (with barbs) 10 023.004.03 Barb, 1/8", package of 10

5 38.0766.02 Flow control screw, package of 5 11 38.1775.00 Performer (A-dec 200) block service kit

6 001.021.00 Screw 12 023.001.03 Barb, 1/4", package of 10

13 023.805.01 Barb, 5/16", package of 10

† Indicates that the individual part is not available for sale

Figure 51. Control Block Assembly

52 86.0016.00 Rev A

Toggles Assemblies (Flush Toggle and Master On/Off Toggle)

33.0009.83 (Flush Toggle)

33.0173.00 (Master On/Off Toggle)

Item Part Number Description

1 011.038.01 Pin, , package of 10

2 33.0050.00 Valve Body

3 22.0040.00 Spring

4 29.0830.00 Stem With O-rings, 2 Way

5 33.0007.00 Disk

6 33.0036.01 Toggle, Momentary, Gray

7 006.009.00 Hex Nut, 15-32 X 9/16 X 3/32

8 29.0840.00 Stem With O-rings, 3 Way

9 22.0462.03 Toggle, Gray 3

Figure 52. Flush Toggle and Master On/Off Toggle

Delivery System

86.0016.00 Rev A 53

A-dec 200 Service Guide

Oil Collector

Item Part Number Description

1 001.016.01 Socket head screw, 10-32 X 3/8"

2 026.143.0 Gauze pad

3 77.0059.01 Oil collector assembly, white 2

Figure 53. Oil Collector

54 86.0016.00 Rev A

CUSPIDOR AND SUPPORT CENTER

This section provides detailed information related to service, maintenance, and adjustment of the A-dec 200 cuspidor and support center.

Contents

• Product Overview, page 55

• Service, Maintenance, and Adjustments, page 56

• Illustrated Parts Breakdown, page 57

Product Overview

A-dec 200 Support Center provides chair side mounting of the A-dec 200 Delivery System, Cuspidor, A-dec 200 Dental Light, and Assistant’s Instrumentation. The support center mounts to the A-dec 200 chair using a post mount.

Figure 54. A-dec 200 Support Center with Cuspidor

86.0016.00 Rev A 55

A-dec 200 Service Guide

Pinch Valve

Service, Maintenance, and Adjustments

Bowl Rinse Flow Adjustment

Adjustments to the cuspidor bowl rinse flow are made inside the support center. To adjust the flow:

1. Loosen the two thumb screws at the bottom of the support center and

carefully pull the cover out.

2. With the cuspidor bowl rinse on, tighten or loosen the pinch valve to

adjust the flow.

3. For the best rinsing action, adjust the flow pattern by rotating the bowl

rinse.

Figure 55. Pinch Valve Adjustment

Self-Contained Water System

The self-contained water system provides water to the handpieces, syringes, and cuspidor cupfill. The system includes a 2 liter water bottle that mounts to the support center and offers a way to ensure the quality of treatment water. Turn the bottle counterclockwise to remove it.

WARNING Use only A-dec self-contained water bottles. Do not use

any other bottles, including glass or plastic beverage bottles. Do not use damaged bottles. These can pose a serious safety hazard while pressurized. A-dec plastic water bottles cannot withstand heat sterilization. Attempting to do so will damage the bottle and your sterilizer.

CAUTION Use caution when using the self-contained water

system with accessories that require and uninterrupted water supply (such as scalers) as these could get damaged without a continuous water source. Do not use saline solutions, mouth rinses, or any chemical solutions (not specified in this guide) in your A-dec self-contained water system. These may damage the system components and cause your dental unit to fail.

Figure 56. Self-Contained Water Bottle

Adjusting the Cuspidor Cupfill and Bowl Rinse

For adjustment information, see "Cuspidor Cupfill and Bowl Rinse" on page 34.

56 86.0016.00 Rev A

Illustrated Parts Breakdown

Cuspidor

This section contains illustrated parts breakdowns specific to the A-dec 200 Support Center and Cuspidor.

Part Identification

†— Indicates that the individual part is not available for sale. These parts

are typically part of a kit and/or larger assembly that is for sale.

Contents

• A-dec 200 Support Center, page 58

• A-dec 200 Cuspidor, page 60

• Self-Contained Water Bottle, page 61

• Cupfill/Bowl Rinse Manifold, page 62

86.0016.00 Rev A 57

A-dec 200 Service Guide

A-dec 200 Support Center

Item Part Number Description

1 — Cuspidor assembly, (see page 60)

2 75.2271.00 Cuspidor bushing

3 75.2252.00 Top cover, white 2

4 044.184.00 Limit switch

5 001.218.00 Screw

6 — Assistant’s telescoping arm assembly (see page 68)

7 005.002.00 Screw

8 60.0080.00 Mounting plate

9 003.112.00 Top cover mounting screws

10 75.2259.00 Top plate

11 75.2253.00 Side cover, white 2

12 75.2254.00 Front cover, white 2

13 38.1803.00 Cupfill/bowl rinse manifold (see page 62)

14 75.2270.00 Chassis

15 027.064.00 Thumbscrew

16 75.2258.00 Support chassis

17 24.0388.02 Regulator assembly, 40 PSI preset

18 90.1167.00 Data line PCB

19 90.1082.00 Stand off, package of 5

20 77.1086.00 Lower bushing

21 75.0150.00 Post plug

22 14.0486.00 Water bottle assembly (see page page 61)

23 006.052.00 Nut

24 77.1085.00 Upper bushing

25 77.1087.00 Trim ring

26 75.2255.00 Rear cover, white 2

58 86.0016.00 Rev A

Figure 57. A-dec 200 Support Center

1 Cuspidor Assembly (see page 60)

6 Assistant’s Telescoping Arm (see page 68)

Self-Contained Water

Bottle Assembly,

(see page 61)

13 Cup Fill/Bowl Rinse Manifold (see page 62)

Cuspidor

86.0016.00 Rev A 59

4 5

6 7

A-dec 200 Service Guide

A-dec 200 Cuspidor

Item Part Number Description

1 77.0042.01 Spout, bowl rinse, back mount

2 77.1112.00 Spout, cupfill, cuspidor

3 030.011.02 O-ring, AS568-011, .301 ID x .070 W, package of 10

4 77.0105.00 Socket, bowl rinse spout

5 030.014.02 O-ring, AS568-014, .489 ID x .070 W, package of 10

6 030.012.02 O-ring, AS568-012, .364 ID x .070 W, package of 10

7 77.0044.01 Gasket, spout, cup cuspidor

8 77.0099.00 Button, cuspidor fill/rinse, left

9 77.0100.00 Button, cuspidor fill/rinse, right

10 43.0010.00 Switch assembly, 20"

11 77.0097.01 Support, cuspidor mount with barbs

12 005.088.00 Screw, socket head, 6-32 x 1-1/4

13 001.088.00 Screw, socket head, 10-32 x 5/8 Stainless Steel

14 77.0108.01 Top housing, cuspidor, back mount

15 77.0040.00 Tube, drain, cuspidor, back mount

16 035.053.01 O-ring, vacuum, 20 mm x 2 mm, package of 10

17 002.058.00 Screw, button head socket, 3/8-16 x 3/4

18 004.141.00 Washer, flat, STL, .261 ID

19 77.0109.01 Bottom housing, cuspidor, back mount

20 75.2273.00 Hub, cuspidor

21 75.2274.00 Cuspidor stop

22 005.106.00 Screw, 10-32 x 2 1/2, socket head

23 12.0991.00 Drain seal

24 001.088.00 Screw, socket head, 10x32 x 5/8 stainless steel

25 77.0236.00 Bracket, hold down, cuspidor

26 006.009.00 Nut, hex, 15/32-32 x 9/16 x 3/32

27 004.132.00 Washer, flat, stainless steel, .500 ID

28 004.035.00 Washer, flat, nylatron, .511 ID

29 77.0038.01 Bowl, cuspidor, ceramic

Figure 58. Cuspidor

60 86.0016.00 Rev A

Self-Contained Water Bottle

Item Part Number Description

1 14.0487.00 200 self-contained cap assembly

2 14.0486.00 Water bottle

Cuspidor

Figure 59. Self-Contained Water Bottle

86.0016.00 Rev A 61

A-dec 200 Service Guide

Cupfill/Bowl Rinse Manifold

Item Part Number Description

1 041.660.00 Solenoid, 24 vac assembly

2 030.016.02 O-ring, package of 10

3 77.0816.00 † Manifold

4 001.088.00 Socket head screw, 1/4 - 20 x 5/8, stainless steel

5 004.005.02 Washer, package of 10

6 023.805.01 Barb, 5/16 x 10 - 32, package of 10

7 023.804.00 Barb, 5/16 x 1/8 NPT

† Indicates that the individual part is not available for sale

Figure 60. Cupfill/Bowl Rinse Manifold

62 86.0016.00 Rev A

ASSISTANT’S INSTRUMENTATION

HVE

This section provides detailed information related to service, maintenance, and adjustment of the A-dec assistant’s instrumentation.

Contents

• Product Overview, page 63

• Service, Maintenance, and Adjustments, page 64

• Illustrated Parts Breakdown, page 67

Product Overview

The A-dec 200 assistant’s instrumentation is equipped with an autoclavable syringe, high volume evacuator (HVE), and saliva ejector (SE). Some configurations may include an optional dual HVE or instrumentation that supports a chair-side or single-operatory vacuum system. Integrated into the support center is the solids collector, which connects with the HVE and SE to separate solids from the evacuated material.

The assistant’s vacuum instruments disconnect from the tubing for easy cleaning, and they are fully autoclavable.

Figure 61. Assistant’s Instrumentation

86.0016.00 Rev A 63

A-dec 200 Service Guide

Service, Maintenance, and Adjustments

Auto-air Holder

Each handpiece in the holder assembly automatically activates when you lift it from its holder.

Holders provide vacuum On/Off switching for users whose vacuum system requires this functionality. The vacuum pump activates automatically when you lift the HVE or SE from the holder. The vacuum turns off when you place the HVE or SE back into the holder.

Figure 62. Auto-Air Holder

Positioning Assistant’s Holder

The independently adjustable holders rotate to allow customized positioning for each instrument on the assembly.

To rotate holder:

1. Pull holder slightly away from the adjacent one.

2. Rotate to the desired position and release.

Figure 63. Rotating Instrument Holders

NOTE Auto-air holders rotate together. Standard holders rotate

individually

64 86.0016.00 Rev A

Assistant’s Touchpad Connections

24 VAC

Data Line

The assistant’s instrumentation uses a standard touchpad that serves as a single touch surface for controlling the chair, dental light, and cuspidor. The touchpad can rotate 340° for access and visibility.

Figure 64. Assistant’s Touchpad with Standard Holder Connections

Vacuum Instrumentation

To use the HVE and SE, lift the holder from the valve to activate the vacuum.

NOTE Lifting the handpiece from the holder only activates the

vacuum with auto-air switches.

Figure 65. HVE and SE Operation

86.0016.00 Rev A 65

A-dec 200 Service Guide

Solids Collector

The solids collector aids in preventing solids from entering the central vacuum system.

CAUTION Use appropriate gloves when handling

contaminated parts.

Replace Solids Collector Screen

1. Turn off vacuum or open the HVE control valve.

2. Remove the solids collector cap.

3. Remove the solids collector screen.

4. Discard the screen according to your local regulations.

CAUTION Do not empty the screen into the cuspidor. Doing so

could plug the drain.

5. Insert the new screen in the collector and replace the cap.

CAUTION Ensure that the solids collector cap is inserted properly.

Failure to do so will not allow for proper suction.

Figure 66. Replace Solids Collector Screen

66 86.0016.00 Rev A

Illustrated Parts Breakdown

This section contains illustrated parts breakdowns specific to the A-dec 200 Support Center and Cuspidor.

Part Identification

†— Indicates that the individual part is not available for sale. These parts

are typically part of a kit and/or larger assembly that is for sale.

Contents

• Telescoping Assistant’s Arm, page 68

• Assistant’s Touchpad Assembly, page 69

• Assistant’s Auto-Air Holder, page 70

• Assistant’s Standard Holder, page 72

86.0016.00 Rev A 67

A-dec 200 Service Guide

Assistance Touchpad Assembly (see page 69)

Holders Assembly (see page 70 for Auto-Air; page 72 for Standard)

Telescoping Assistant’s Arm

Item Part Number Description Item Part Number Description

1 75.0018.00 Assistant’s arm slide 7 77.1082.00 Assistant’s arm rod

2 018.005.00 Grommet, 1/4 ID x .38 groove 8 002.080.01 Socket head screw, 1/4-20 x 3/4

3 77.1081.00 Telescoping arm housing 9 001.134.00 Socket shoulder screw, 5/16-18 x 3/8 x 2

4 001.167.00 Button head socket screw, 6-32 x 3/8, stainless steel 10 011.099.00 Pin dowel, .187 dia x 1.00 lg

5 006.040.00 Retainer nut, 6-32 11 006.132.00 † Nut, lock, 5/16-18 x 1/2 x .275

6 75.0019.01 End cap 12 024.152.01 Convolute tubing, 5/8 ID - 4" long

† Indicates that the individual part is not available for sale

Figure 67. Telescoping Assistant’s Arm

68 86.0016.00 Rev A

Assistant’s Touchpad Assembly

Item Part Number Description

1 90.1186.00 Touchpad cap

2 77.0123.00 Pass-through bolt

3 99.0651.00 Spline

4 77.0335.01 Touchpad base

5 003.078.00 Socket head screw, 4-40 X 1/4

6 004.173.00 Washer

7 004.237.00 Wave spring washer

8 004.060.00 Washer

Figure 68. Assistant’s Touchpad Assembly

86.0016.00 Rev A 69

A-dec 200 Service Guide

Assistant’s Auto-Air Holder

Item Part Number Description Item Part Number Description

1 — * Nut 13 99.1142.00 † SE/Syringe Holder

2 013.011.00 Spring 14 83.0624.00 † Axle

3 90.1216.00 End-Cap Assembly 15 83.0585.00 † Special Nut, 4-40 X .75

4 006.011.00 Nut, 4-40 X 1/4 X 3/32 16 83.0648.00 Holder Base Axle

5 83.0573.00 † Holder Rod † 17 — Touchpad Assembly

6 99.1141.00 † 15 mm HVE Holder † 18 99.0698.00 Bearing

7 83.0583.00 † Sensor Spring † 19 77.0956.01 Turret Adaptor

8 001.021.00 Socket Head Screw, 4-40 X 1/2 Stainless Steel 20 023.822.00 5/8" Barb

9 010.019.00 E-ring, .904 ID 21 99.0687.00 Sleeve

10 83.0582.00 † Sensor Spool 22 77.0385.00 Stop

11 83.0581.00 † Sensor Button 23 83.0647.00 † Inner Hub

12 99.1143.00 † Auto-Air Holder

† Indicates that the individual part is not available for sale

* Part of Item 3, p/n 90.1216.00

70 86.0016.00 Rev A

Figure 69. Auto-Air Assistant’s Holders Assembly

86.0016.00 Rev A 71

A-dec 200 Service Guide

Assistant’s Standard Holder

Item Part Numbers Description

1 99.0649.01 † Tu r r et

2 99.0701.00 Turret axle, assistant’s arm

3 99.0653.03

99.0650.03

99.0652.03

4 99.0660.00 † Axle

5 99.3684.00 End cap assembly kit

6 99.0698.00 Bearing

7 99.0699.00 Inner hub assistant’s arm

† Indicates that the individual part is not available for sale

Figure 70. Assistant’s Standard Holder Components

Holder, SE/Syringe kit, White 2, 9 mm Holder, standard HVE kit, White 2, 11 mm Holder, assistant’s HVE kit, White 2, 15 mm

72 86.0016.00 Rev A

UTILITIES

This section provides detailed information related to service, maintenance, and adjustment of the A-dec 200 utility area.

Contents

• Product Overview, page 74

• Service, Maintenance, and Adjustments, page 75

• Illustrated Parts Breakdown, page 77

Figure 71. Utilities on A-dec 200 Dental Chair

86.0016.00 Rev A 73

A-dec 200 Service Guide

Front Post

Back Post

Manual Shutoff

Valv es

Floor Box Cover

NOTE If cable ties are present in

the product and you need to remove them for servicing, make sure to replace the ties after service is completed.

Product Overview

The utilities for your system are located under the chair floor box. To access the utilities, pull the floor box cover up at the front posts, and then forward and up to slide the cover off the back posts.

Shutoff Valves

Manual shutoff valves control the air and water to the system. To prevent leaks, these valves should remain fully open (turned counterclockwise) except while servicing the system.

Air and water pass through separate filters before entering the regulators. Replace these filters when they become clogged and cause restricted flow.

Figure 72. Floorbox Cover Removal and Shutoff Valves

Gauge and Pre-Regulator

The pre-regulator controls the air and water pressure in the unit. The gauge displays the unit air pressure.

Figure 73. Utilities Diagram

Table 9. Utilities Descriptions

Item Description Item Description

1 Moisture separator

(optional)

2 Cuspidor drain tube 8 5/8" exhaust tube

3 20 mm tube to drain 9 Durr adapter

4 Connector clips (four) 10 20 mm tube to liquid

5 Liquid separator tank 11 Y connector

6 Cap 12 Exhaust tube

7 Air exhaust

separator drain

74 86.0016.00 Rev A

Service, Maintenance, and Adjustments

Filter Housing

Filter

Manual Shut Off Valve

O-ring

Beveled Edge

Manual Air Shutoff Valve

Filter Housing

Filter

Filter Housing

Manual Water Shutoff Valve

Utilities

Air and Water Filter Replacement

Air and water pass through separate filters before entering the regulators. Replace a filter when it becomes clogged and causes restricted flow.

Figure 74. Air and Water the Filter Components

CAUTION To ensure proper delivery system operation,

install the filter with the beveled edge facing the manifold.

NOTE Turn the pre-regulator knob clockwise to increase

pressure and counterclockwise to decrease pressure. Read the pressure gauge while adjusting. Water pressure will increase/decrease by half of the gauge indication.

Figure 75. Replacing Filters

To replace the Filter:

1. Turn off the master toggle and close the manual shutoff valves (turn

clockwise).

2. Bleed the system of air and water pressure by operating the syringe

buttons until air and water no longer flow.

3. Using a standard screwdriver, remove the filter housing from the air or

water filter pre-regulator assembly and remove the filter.

4. Replace the filter if it is clogged or discolored. Install the filter with the

beveled edge facing the manifold.

86.0016.00 Rev A 75

A-dec 200 Service Guide

76 86.0016.00 Rev A

Illustrated Parts Breakdown

Utilities

This section contains illustrated parts breakdowns specific to the A-dec 200 utilities.

Part Identification

†— Indicates that the individual part is not available for sale. These parts

are typically part of a kit and/or larger assembly that is for sale.

Contents

• Air Filter/Regulator Assembly, page 78

• Water Filter/Regulator Body Assembly, page 79

86.0016.00 Rev A 77

A-dec 200 Service Guide

Air Filter/Regulator Assembly

Item Part Number Description Item Part Number Description

1 026.154.00 Gauge 11 24.0135.00 Regulator, body, white

2 001.024.00 Screw 12 22.0460.00 Spring

3 24.0365.00 Bracket 13 24.0132.00 Piston with O-ring

4 24.0232.00 Stud, filter/regulator manifold 14 22.0440.02 Diaphragm, package of 10

5 24.0234.01 Filter, package of 6 15 24.0368.00 Valve cover

6 030.019.03 O-ring, package of 10 16 004.005.02 Washer, flat nylon, 187 ID

7 24.0229.00 Filter housing 17 023.004.01 Barb, 1/8 x 10-32

8 021.042.00 Adaptor 18 001.026.00 Screw, socket head, 6-32 x 7/8"

9 24.0162.00 Manifold, filter/regulator 19 006.015.00 Nut, hex, 6-32 x 5/16 x 9/64"

10 24.0137.01 Gasket, 9-hole 20 24.0182.81 Regulator, air assembly

21 006.009.00 Nut, hex, 15/32 - 32 x 9/16 x 3/32"

Figure 76. Air and Water Filter/Regulators Body Assembly Components

78 86.0016.00 Rev A

Water Filter/Regulator Body Assembly

Item Part Number Description

1 24.0229.00 Housing, filter

2 030.019.03 O-ring, package of 3

3 24.0234.02 Filter kit, package of 2

4 24.0232.00 Stud, filter/regulator manifold

5 021.016.04 Plug, hex head, 10 - 32

6 004.005.02 Washer

7 021.042.00 Adapter, 1/8" MPT to 3/8"

8 24.0137.01 9-hole gasket

9 24.0355.00 Body, black

10 013.032.00 Spring

11 24.0132.00 Piston with o-ring

12 24.0140.00 Spacer, water regulator

13 22.0440.02 Diaphragm, package of 10

14 023.004.01 Barb, 1/8" x 10-32

15 004.005.01 Washer, flat nylon 187 ID

16 24.0368.00 Valve cover

17 001.021.00 Screw, socket head, 4-40 x 1/2", stainless steel

18 001.024.00 Screw, socket head, 4-40 x 3/8", stainless steel

19 24.0142.00 Plunger

Utilities

Figure 77. Air and Water Filter/Regulators Body Assembly Components

86.0016.00 Rev A 79

A-dec 200 Service Guide

80 86.0016.00 Rev A

DENTAL LIGHT

Light Shield Ta b ( h id de n)

Light Shield

Pivot Housing/Diagonal Tension Adjustment

This section provides detailed information related to service, maintenance, and adjustment of the A-dec 200 Dental Light.

Contents

• Product Overview, page 82

• Service, Maintenance, and Adjustments, page 83

• Illustrated Parts Breakdown, page 89

Figure 78. A-dec 200 Dental Light

86.0016.00 Rev A 81

A-dec 200 Service Guide

Treatment Positions

X-Ray /Rinse PositionEntry/Exit Position

Product Overview

The dental light provides three intensities at the light head and the optional touchpad.

Dental Light Specifications

• Electrical (Transformer Output): 12.1/16/17 VAC

• Bulb: Quartz Xenon Halogen, single-end prongs, extended life

• Rating: 17V/95 watts

• Color temperature: 4800 Kelvin

• Heat output: 325 BTU/Hour

• Light Pattern: 3.9" x 6.7" at 27.6" (100 mm x 170mm at 700 mm)

Nominal Light Intensity

• Composite: 4400 lux (743 fc)

• High: 17,000 lux (2230 fc)

On/Off Button

The dental light can be operated from the assistant’s or doctor touchpad. To turn the light on, off, or change intensity, press the dental light button on the touchpad.

Auto On/Off Feature

The optional auto on/off feature turns the light on when the chair back reaches a treatment position. Press or , and the dental light turns off

Figure 79. Touchpad and Footswitch Light Features

To disable the auto. Press any button that moves the chair into an operating position. The dental light turns on when the chair reaches that position.

To activate/deactivate the auto on/off feature, press and hold the program and dental light buttons simultaneously for three seconds. One beep confirms the auto on/off is off. Three beeps confirm the auto on/off is on.

82 86.0016.00 Rev A

Service, Maintenance, and Adjustments

10 A M P

Off

LED Indicator

Dental

Contents

• Dental Light Wire Connections on the 200 Dental Chair, page 84

• Intensity Switches, page 83

• Dental Light Wire Connections on the 200 Dental Chair, page 84

• Dental Light Relay Circuit Board, page 86

• Bulb Replacement, page 88

• Rotation Adjustments, page 87

• Bulb Replacement, page 88

Circuit Breaker Location

A circuit breaker will interrupt the flow of electricity under abnormal conditions. If the circuit breaker should trip, inspect the wiring to ensure there are no shorts, and reset by pushing the circuit breaker. The circuit breaker for the dental light is located on the power supply.

Figure 80. Circuit Breaker

Intensity Switches

A-dec dental lights can be operated from the manual 3-way switch or the optional touchpad. The dental light is always off when the 2-way switch is in the center location. To turn the light on or off from the touchpad, press and hold the dental light button.

The dental light features two intensities: high and composite (low). For systems without a touchpad, flip the 3-way switch either side of center to select the intensity. For systems with a touchpad, ensure that the 2-way switch is in either of the On positions, and press the light button to choose the intensity. When the light is in the composite setting, the LED indicator on the touchpad flashes.

Figure 81. Intensity Switches

86.0016.00 Rev A 83

A-dec 200 Service Guide

Dental Light Circuit Board

BLK/WHT

Blk

BLU

VIO

WHT

YEL WHT

VIO

BLU

YEL

BLK/WHT

Blk

VIO

BLU

Blk

VIO

BLU

Blk

VIO

BLU

Blk

VIO

WHT

Firststar Light Switch

200 PS Power Cord

To AUX Power Connector on Chair Circuit Board

300 W Power Supply

100 V (p/n 43.0214.00) 100 - 240 V (p/n 43.0215.00) 220 - 240 V (p/n 43.0216.00)

WHT

NOTE For field installation, cut off the existing red

connector and strip the wires.

BLU

Blk

Dental Light Wire Connections on the 200 Dental Chair

Term in al

Vol tag e Terminal Label Wire

200 Dental Light

J2 17/12.1 VAC VIO Violet

J2 0 VAC BLK Black

NOTE See "Circuit Board Components" on page 9 to identify dental light connections on the chair circuit board.

NOTE The LED indicator must be connected to the power supply for the dental light circuit board to function correctly.

Figure 82. Dental Light Wire Connections With Touchpad

84 86.0016.00 Rev A

Figure 83. Dental Light Wire Connections Without Touchpad

Dental Light Circuit Breaker

300 W Power Supply

100 V (p/n 43.0214.00) 100 - 240 V (p/n 43.0215.00) 220 - 240 V (p/n 43.0216.00)

200 PS Power Cord

To Auxiliary Power Connector on Chair Circuit Board

Firstar Light Switch

Firstar Light Socket

WHT

VIO

BLU

BLK

VIO

Dental

86.0016.00 Rev A 85

A-dec 200 Service Guide

Dental Light Relay Circuit Board

Figure 84. Dental Light Relay Circuit Board

Table 11. Dental Light Output Settings

Function K1 (DS4) K2 (D57) Output

Off Off Off 0 VAC

High intensity On Off 17 VAC

Composite intensity Off On 12 VAC

Medium Intensity On On 16 VAC

LED Identification

Table 12. LED Status and Descriptions

LED Status Description

DS1 - AC power LED

DS2 - Status LED

Table 10. Dental Light Relay Circuit Board Descriptions

Item Description

1DS1 - AC power LED

2 DS2 - Status LED

3DS3 - Data LED

4 DS4 - Dental Light relay LED

5 DS5 - Dental light relay LED

6 P1 - Input power

7P2 - Data port

8 J1 - Toggle switch inputs

9 J2 - Dental light output power

DS3 - Data LED Off No DCS communication, not connected to

DS4, DS5 Dental light relay LEDs

Off No 24 VAC power, tripped circuit breaker,

power supply turned off, no line voltage

Green, steady 24 VAC at the terminal strip

Off System is not functioning, no power or

circuit board has failed

Green, steady Normal operation

the DCS, or DCS has failed

Green, steady Detects active DCS

Green, blinking Valid DCS message

DS4, DS5

Off, Off Dental light off

On, Off High intensity

Off, On Composite intensity

On, On Medium intensity

86 86.0016.00 Rev A

Dental

Adjustment Nut

Loosen

Tighten

Tension Adjustment Screw

Tension Adjustment Nut

Yo k e P l u g

Flexarm Adjustments

Remove the screw and cover from the flexarm. Turn the tension adjustment nut inside the flexarm using a 1/2" open end wrench. Tighten the nut by turning it clockwise, if the flexarm moves too easily, or tends to drift down

by itself. Loosen the nut by turning it counterclockwise, if the arm drifts up.

NOTE The weight of the flex arm cover affects the flex arm

counter-balance. Set cover on flex arm to test tension adjustment.

Figure 85. Adjustment

Rotation Adjustments

If the light head is difficult to position, moves too easily, or tends to slip out of position, the rotation tension can be adjusted diagonally and vertically.

Diagonal Adjustment

Use a 5/64" hex key to adjust the setscrew on the pivot housing. Turn the screw clockwise to increase tension; counterclockwise to decrease tension.

Figure 86. Diagonal Adjustment

Vertical Adjustment

1. Remove the yoke plug on one side of the light.

2. Using a 5/16" nut driver, turn the adjustment nut clockwise to increase

tension; counterclockwise to decrease tension.

3. Reinstall the yoke plug.

Figure 87. Vertical Adjustment

86.0016.00 Rev A 87

A-dec 200 Service Guide

Light Shield Tab ( hidden)

Light Shield

New Bulb

Bulb Replacement

Follow these steps when replacing the dental light bulb:

1. Turn the light off and allow it to cool.

WARNING To avoid burning your fingers, allow the bulb to cool

before removing. Never operate the dental light with the light shield removed. The clear shield contains UV blocking additives and is also your protection in the unlikely event that the bulb shatters.

2. Hold the light shield and gently squeeze one side while pulling the

shield away from the dental light. Set the light shield aside.

3. Using a gauze pad or cloth to protect your fingers, carefully pull the old

bulb from its socket. Discard the bulb.

4. Holding the new bulb in its outer wrapper, carefully insert the bulb pins

into the socket. A small section of each pin is still visible when the bulb is fully seated.

Figure 88. Bulb Replacement

5. Remove and discard the outer wrapper. Then reinstall the light shield.

6. Verify the operation of the light by turning it on and operating it at each

88 86.0016.00 Rev A

CAUTION Take care when handling the bulb. The bulb base is

fragile and can break under excessive pressure. Do not remove the outer wrapper when handling the new bulb. Finger oils can affect light performance and severely limit bulb life. If you should inadvertently touch the bulb, gently clean it with cotton dampened with isopropyl or ethyl alcohol.

CAUTION Do not attempt to install the light shield if it has a

broken tab. Contact your authorized A-dec dealer for a replacement shield and install it before operating the light.

intensity setting.

Illustrated Parts Breakdown

Dental

This table lists the 200 Dental light parts and part numbers that correspond to the illustration.

200 Dental Light

Item Part Number Description

1 041.709.00 Bulb

2 97.0411.00 Shield

3 90.1304.00 Light switch kit

4 90.1309.00 Light socket kit

Figure 89. Dental Light Bulb, Shield and Light Switch Kit

86.0016.00 Rev A 89

A-dec 200 Service Guide

90 86.0016.00 Rev A

TROUBLESHOOTING

The troubleshooting tables contain tips and troubleshooting information to assist in diagnosing problems. This content is not intended to cover every situation, but includes the most common problems that you may encounter.

Dental Chair

Problem Possible Cause Action

Factory defau lt test halts during the Base Up test, and the circuit board beeps one time

Chair base or back is stuck in full up position The limit switch is not activated, or Down solenoid poppet is unable to open based on excess hydraulic pressure

Input voltage could be low or outside the required range.

Motor capacitor or Base Up solenoid are defective

Potentiometer is not changing voltage.

Hydraulic lock has occurred Correct Hydraulic Lock

Verify that the input voltage and voltage selection resistors (100 - 120 VAC = R72) and R74 (220 - 240 VAC = R 73). If Base limit switch is activated, verify switch operation. If the motor thermal limiter is open, and the motor is hot, wait for the motor to cool off.

Replace the motor capacitor or Base Up solenoid.

Verify the potentiometer LED comes On when the base is moving. Check the potentiometer mechanical drive and electrical connections.

1. Remove the motor/pump cover from the chair.

2. Fit a 5/8" open end wrench to the high pressure outlet port (either lift or tilt, whichever is in

hydrostatic lock) of the hydraulic manifold.

3. Wrap a rag around both the fitting and the end of the wrench. The rag will absorb the small

amount of fluid vented from the fitting.

4. Carefully loosen the fitting about one-half turn, counterclockwise, and re-tighten.

5. Cycle the chair a couple of times to verify it is no longer in hydraulic lock.

Factory defau lt test halts during the Back Down test, and the circuit board beeps one time

86.0016.00 Rev A 91

Stop plate limit switch is activated

Verify switch operation

A-dec 200 Service Guide

Problem Possible Cause Action

Stop plate is jammed Remove and reinstall the stop plate.

Back Down solenoid is defective Test the solenoid and replace if needed.

Back is in hydrostatic lock See Correct Hydraulic Lock, page 91

Factory default test halts during the Back Up test

Factory default test halts during the Base Down test

Chair moves by itself when power is turned On

Potentiometer is not changing voltage

Back up limit switch is activated Verify switch operation.

Back Up solenoid is defective Test solenoid and replace if needed.

Back is in hydrostatic lock See Correct Hydraulic Lock, page 91

Potentiometer is not changing voltage.

Stop plate limit switch is activated

Base Down solenoid is defective Test solenoid and replace if needed.

Base is in hydrostatic lock See Correct Hydraulic Lock, page 91

Potentiometer is not changing voltage

The jumper is in FACT DEFAULT position

Short circuit in the touchpad or footswitch

Short circuit on the circuit board Replace the circuit board.

Verify that the potentiometer LED is On when the back is moving. Check the potentiometer mechanical drive and electrical connections.

Verify potentiometer LED is On when base is moving. Check potentiometer mechanical drive and electrical connections.

Verify switch operation

Verify that the potentiometer LED is On when the back is moving. Check the potentiometer mechanical drive and electrical connections.

Verify that the jumper is in the SPARE position

Unplug the touchpad and footswitch; reset the circuit breaker. If the problem isn’t repeated, the touchpad or footswitch may have shorted.

No power to chair or unit. Office still has power.

92 86.0016.00 Rev A

The chair is unplugged.

The Mains On/Off button is in Off position.

1. Verify power is available at the outlet.

2. Plug chair in to power source.

Press the Mains On/Off button.

A-dec 200 User manual

Specifications and Main Features

Frequently Asked Questions

User Manual

INTRODUCTION

Get Support

International Customer Service

Inside this Guide

A-dec 200 System

Serial and Model Numbers

Service Tools

DENTAL CHAIR

Product Overview

Chair Load Capacity

Power and Status

Limit Switch and Chair Lockout

Circuit Board Components

Service, Maintenance, and Adjustments

Factory Default Routine

Potentiometers

Adjust the Base Up Limit Switch:

Adjust the Base Positioning Potentiometer

Adjust the Back Potentiometer

Hydraulic System

Solenoids

Tes t th e Sol eno i d

Remove and Replace the Solenoid

Tes t t he Mot or Pu mp

Headrest Adjustments

Chair Speed Adjustments

Illustrated Parts Breakdown

Part Identification

Chair Covers

Upper Chair Assembly

Mid Chair Assembly

Lower Chair Assembly

Headrest Assembly

Motor Pump and Capacitor Assembly

Hydraulic Manifold Assembly

Hydraulic Tank Assembly

Base Limit Switch Assembly

Back Potentiometer Assembly

Base Position Potentiometer Assembly

PROGRAMMING

To u c h p a d O p t i o n s

Chair Positions

X-Ray/Rinse Button

Dental Light

Auto On/Off

Cuspidor Cupfill and Bowl Rinse

Customize Cupfill and Bowl Rinse Functions

Standard Cuspidor (no touchpad)

Cuspidor with Optional Touchpad

DELIVERY SYSTEM

Product Overview

A-dec Tubing

Service, Maintenance, and Adjustments

Flexarm Adjustments

Instrument Holder Adjustments

Handle

Control Block

Remove the Control Block

Handpiece Control Adjustments

Adjust the Water Coolant

Adjust the Air Coolant

Adjust the Drive Air Pressure

Oil Collector

Handpiece Tubing Replacement

Adjust Tubing Length

Quad Voltage Intraoral Light Source (QVIOLS)

Intraoral Light Source Adjustments

Intraoral Light Source Length and Voltage

Illustrated Parts Breakdown

Part Identification

A-dec 200 Delivery System

Holder Assembly

Control Block Assembly

Toggles Assemblies (Flush Toggle and Master On/Off Toggle)

Oil Collector

CUSPIDOR AND SUPPORT CENTER