Service Reference
A-dec 311, 411, and 511 Dental Chairs
Copyright
© 2014 A-dec Inc. All rights reserved.
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 400, 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.
Product Service
For service information, contact your local authorized A-dec dealer. To find your local dealer, go to www.a-dec.com.
Regulatory Information
The Regulatory Information and Specifications document (p/n 86.0221.00) is delivered with A-dec dental device equipment as mandated by agency requirements. If you need this information, please go to the Document Library at www.a-dec.com. This document includes:
•Serial number identification
•Software revisions
•Deluxe touchpad help messages
•Intended application and use statements
•Identification of symbols
•Environmental specifications
•Classification of equipment
•Electrical rating and electromagnetic information
•Chair load capacity
Service Guide
This document is a companion to the A-dec 311, 411, and 511 Dental Chairs Service Guide (p/n 86.0380.00). The Service Guide contains service, adjustments, maintenance, and troubleshooting information for the 311, 411, and 511 dental chairs. Circuit board components and flow diagrams are available in both the Service Guide and the Service Reference.
Other A-dec Service Documents
The A-dec 300, 400, and 500 Delivery Systems Service Guide (p/n 86.0382.00) contains service, maintenance, and troubleshooting content. The A-dec 300, 400, and 500 Delivery Systems Service Reference (p/n 86.0383.00) contains illustrated parts breakdown content.
Circuit board components and flow diagrams are in both documents. These documents include cuspidors, floor boxes, and support centers.
The A-dec Dental Lights and Monitor Mounts Service Guide (p/n 86.0326.00) contains service, maintenance, and troubleshooting content for A-dec dental lights and monitor mounts. The A-dec Dental Lights and Monitor Mounts Service Reference (p/n 86.0328.00) contains illustrated parts breakdown content. Circuit board components and flow diagrams are in both documents.
Illustrated Parts Breakdown — A-dec Dental Chairs
A-dec 311 Dental Chair |
A-dec 411 Dental Chair |
A-dec 511 Dental Chair |
page 3 |
page 43 |
page 91 |
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Chair Circuit Boards page 126 |
Chair Flow Diagrams page 123 |
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86.0381.00 Rev A |
1 |
A-dec 311, 411, and 511 Dental Chairs Service Reference |
Illustrated Parts Breakdown — A-dec Dental Chairs | 2 |
Illustrated Parts Breakdown — 311 Chair
Upper Chair page 11
Mid Chair page 25
Lower Chair page 33
Lift Arm Covers
page 4
page 1
86.0381.00 Rev A
Three Piece
Utility Covers
page 8
One Piece Utility
Cover
page 6
Remote Floor
Box Cover
page 7
3
A-dec 311, 411, and 511 Dental Chairs Service Reference |
Illustrated Parts Breakdown — 311 Chair | 4 |
311 Lift Arm Covers
1
Upper Assistant’s
Lift Arm Cover Upper Lift Arm Cover
2
3
page 3
311 Lift Arm Covers
Item |
Part Number |
Description |
Replacement Kit |
1 |
62.0662.00 † |
Upper lift arm cover |
Part of 90.1266.00 |
|
62.0651.00 |
Upper assistant’s lift arm cover |
-- |
2 |
62.0652.00 † |
Lift arm cover |
Part of 90.1266.00 |
3 |
62.0653.00 † |
Lower lift arm cover |
Part of 90.1266.00 |
† Indicates that the individual part is not available for sale
page 3
86.0381.00 Rev A |
5 |
A-dec 311, 411, and 511 Dental Chairs Service Reference |
Illustrated Parts Breakdown — 311 Chair | 6 |
311 One Piece Utility Cover
Item |
Part Number |
Description |
1 |
62.0296.00 |
Utility cover |
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2 |
62.0347.00 |
Plug cover |
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3 |
62.0348.00 |
Umbilical plug cover |
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4 |
62.0300.00 |
Utility cover stiffener |
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1
2
2
3
4
page 3
311 Remote Floor Box Covers (Optional)
Item |
Part Number |
Description |
1 |
41.0413.00 |
Cover, Surf |
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41.0413.01 |
Cover, Gray |
2 |
41.1507.00 |
Box |
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1
2 
page 3
86.0381.00 Rev A |
7 |
A-dec 311, 411, and 511 Dental Chairs Service Reference |
Illustrated Parts Breakdown — 311 Chair | 8 |
311 Three Piece Utility Covers
2 3
1
4
1
5
page 3
311 Three Piece Utility Covers
Item |
Part Number |
Description |
1 |
62.0347.00 |
Plug cover |
2 |
62.0657.00 |
Chair pump cover |
3 |
62.0663.00 |
Radius mount plug cover |
4 |
62.0656.00 |
Power supply cover |
5 |
62.0655.00 |
Floor box cover |
6 |
62.0659.00 |
Power supply frame |
7 |
62.0658.00 |
Floor box frame |
page 3
86.0381.00 Rev A |
9 |
A-dec 311, 411, and 511 Dental Chairs Service Reference |
Illustrated Parts Breakdown — 311 Chair | 10 |
311 Upper Chair
Back Support page 16
Armrest (Before |
page 18 |
October 2012) |
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Armrest (Effective |
page 20 |
October 2012) |
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Armrest (Effective |
page 22 |
February 2014) |
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page 3
page 12 Thin-Line Back with Integrated Neck Support
page 13 |
Thin-Line Back with |
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Headrest |
||
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page 14 Double Articulating Headrest Mechanism
86.0381.00 Rev A |
11 |
A-dec 311, 411, and 511 Dental Chairs Service Reference |
Illustrated Parts Breakdown — 311 Chair | 12 |
311 Thin-Line Back With Integrated Neck Support
Item |
Part Number |
Description |
1 |
62.0405.00 † |
Neckrest assembly - Before September 2013 (for reference only) |
|
62.0877.00 |
Neckrest assembly - Effective September 2013 |
† Indicates that the individual part is not available for sale
1
(Effective September 2013)
(Before September 2013)
page 16 Back Support
311 Upper Chair Contents
page 11
page 3
311 Thin-Line Back with Headrest (311/411)
Item |
Part Number |
Description |
1 |
62.0631.01 |
Double articulating headrest (headrest cushion not included) |
1
Back Support page 16
311 Upper Chair Contents
page 11
page 3
86.0381.00 Rev A |
13 |
A-dec 311, 411, and 511 Dental Chairs Service Reference |
Illustrated Parts Breakdown — 311 Chair | 14 |
311 Double-Articulating Locking Knob Headrest Mechanism (311/411)
7
1 |
2 |
2 |
4 |
5 |
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6
7
8 3
311 Upper Chair Contents
page 11
page 3
311 Double Articulating Locking Knob Headrest Mechanism (311/411)
p/n 62.0631.01
Item |
Part Number |
Description |
Replacement Kit |
1 |
62.0427.00 † |
Knob assembly |
Part of 90.1221.00 Knob kit |
2 |
004.136.00 |
Thrust washer |
Part of 90.1221.00 Knob kit |
3 |
016.033.00 |
Thrust needle bearing |
Part of 90.1221.00 Knob kit |
4 |
62.0749.00 † |
Clamp plate |
Part of 90.1221.00 Knob kit |
5 |
014.015.00 † |
Threaded insert |
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6 |
001.191.01 |
Hex head screw, GR8 5/8-18 x 3-1/4 |
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7 |
62.0429.00 |
Side cap |
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8 |
030.012.00 |
O-ring |
|
† Indicates that the individual part is not available for sale
311 Upper Chair Contents
page 11
page 3
86.0381.00 Rev A |
15 |
A-dec 311, 411, and 511 Dental Chairs Service Reference |
Illustrated Parts Breakdown — 311 Chair | 16 |
311 Back Support (311/411/511)
1
2 |
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6 |
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7
8
3
4
5
9
311 Upper Chair Contents
page 11
page 3
311 Back Support (311/411/511)
Item |
Part Number |
Description |
Replacement Kit |
1 |
001.244.00 |
JCB socket screw, 1/4-20 x 15 mm |
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2 |
005.138.01 |
Button head socket path screw, 10-32 x 5/16 |
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3 |
62.0104.00 † |
Bracket |
90.0719.00 Glide bar brake kit |
4 |
62.0103.00 |
Upper wear pad |
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5 |
62.0102.00 |
Lower wear pad |
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6 |
007.158.00 |
Set screw, 1/4-20 x 1 |
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7 |
006.144.00 |
Coupling |
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8 |
62.0048.01 † |
Back support, White |
90.1099.01 00 Support back assembly |
9 |
001.245.00 |
Screw |
|
† Indicates that the individual part is not available for sale
311 Upper Chair Contents
page 11
page 3
86.0381.00 Rev A |
17 |
A-dec 311, 411, and 511 Dental Chairs Service Reference |
Illustrated Parts Breakdown — 311 Chair | 18 |
311 Armrest (Before October 2012)
Replacement Kit for item 1 and 4 - see table
4
3
2
1
Hardware Kit, part
of replacement kit - 2 
see table
5 6
6 5
8 7
7 8
311 Upper Chair Contents
page 11
page 3
311 Armrest (Before October 2012)
Item |
Part Number |
Description |
Replacement Kit |
1 |
90.1222.00 † |
Armrest, right (reference only) |
90.1389.00 311 Armrests kit |
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61.3861.00 Armrest hardware kit |
2 |
001.263.00 |
Flat head socket screw, 5/16-18 x 1-1/2 |
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3 |
62.0339.00 † |
Pivot pin |
90.1389.00 311 Armrests kit |
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61.3861.00 Armrest hardware kit |
4 |
90.1223.00 † |
Armrest, left (reference only) |
90.1389.00 311 Armrests kit |
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61.3861.00 Armrest hardware kit |
5 |
016.047.00 † |
Flanged bearing |
90.1389.00 311 Armrests kit |
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61.3861.00 Armrest hardware kit |
6 |
62.0393.00 † |
Collar |
90.1389.00 311 Armrests kit |
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61.3861.00 Armrest hardware kit |
7 |
001.264.00 † |
Socket cup head screw, 1/4-28 x 1/2 |
90.1389.00 311 Armrests kit |
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61.3861.00 Armrest hardware kit |
8 |
007.056.00 |
Setscrew |
|
† Indicates that the individual part is not available for sale
311 Upper Chair Contents
page 11
page 3
86.0381.00 Rev A |
19 |
A-dec 311, 411, and 511 Dental Chairs Service Reference |
Illustrated Parts Breakdown — 311 Chair | 20 |
311 Armrest (Effective October 2012 Through January 2014)
Replacement Kit for item 1 - see table
Hardware Kit for item 1 - see table
1
2
2 |
4 |
5 |
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4
5
7
3
6
3 7
6
311 Upper Chair Contents
page 11
page 3
311 Armrest (Effective October 2012 Through January 2014)
Item |
Part Number |
Description |
Replacement Kit |
1 |
90.1389.00 |
Armrest assemblies, right and left |
61.3875.00 Armrest cap replacement kit |
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61.3861.00 Armrest hardware kit |
2 |
001.263.00 |
Flat head socket screw, 5/16-18 x 1-1/2 |
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3 |
62.0812.00 |
Pivot pin |
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4 |
016.047.00 |
Flanged bearing |
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5 |
62.0819.00 |
Collar |
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6 |
001.264.00 † |
Socket cup head screw, 1/4-28 x 1/2 |
|
7 |
007.056.00 |
Setscrew |
|
† Indicates that the individual part is not available for sale
311 Upper Chair Contents
page 11
page 3
86.0381.00 Rev A |
21 |
A-dec 311, 411, and 511 Dental Chairs Service Reference |
Illustrated Parts Breakdown — 311 Chair | 22 |
311 Armrest (Effective February 2014)
1
11
2 |
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3 |
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8 |
10 |
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3 |
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3 7
5
4 
6 9
311 Upper Chair Contents
page 11
page 3
311 Armrest (Effective October 2012)
Item |
Part Number |
Description |
Replacement Kit |
1 |
61.3903.00 |
311/200 Armrest cap assembly |
90.1434.00 311 Armrest cover/replacement kit |
2 |
61.2630.00 |
Spacer |
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3 |
005.110.00 |
Screw |
|
4 |
62.0815.00 † |
Right side armrest weldment |
Part of 62.0835.00 assembly |
5 |
001.264.00 |
Screw |
|
6 |
62.0819.00 |
Collar |
|
7 |
007.056.000 |
Setscrew |
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8 |
001.263.00 |
Screw |
|
9 |
62.0812.00 |
Pivot |
|
10 |
016.047.00 |
Sleeve bearing |
|
11 |
62.0814.00 † |
Left side armrest weldment |
Part of 62.0834.00 assembly |
† Indicates that the individual part is not available for sale
311 Upper Chair Contents
page 11
page 3
86.0381.00 Rev A |
23 |
A-dec 311, 411, and 511 Dental Chairs Service Reference |
Illustrated Parts Breakdown — 311 Chair | 24 |
311 Mid Chair
page 28 Back Tilt
Upper Structure page 26
LIft Arm page 30
page 3
86.0381.00 Rev A |
25 |
A-dec 311, 411, and 511 Dental Chairs Service Reference |
Illustrated Parts Breakdown — 311 Chair | 26 |
311 Upper Structure
2 |
3 4 |
5 |
6 |
1
2
4
6
3
5
page 28 Back Tilt
9
11 |
7 |
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10 |
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11 |
8
9
311 Mid Chair Contents |
10 |
page 25 |
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page 3
311 Upper Structure
Item |
Part Number |
Description |
1 |
62.0247.00 † |
Upper structure |
2 |
018.050.00 |
Hole plug |
3 |
62.0311.00 |
Roller cam |
4 |
010.031.01 |
Retaining ring |
5 |
62.0309.00 † |
Pin |
6 |
018.002.06 |
Hole plug |
7 |
62.0315.00 |
Toe board pin |
8 |
010.040.01 |
Retaining ring |
9 |
62.0367.00 † |
Retainer |
10 |
001.089.00 |
Screw |
11 |
001.165.00 |
Socket shoulder screw |
† Indicates that the individual part is not available for sale
311 Mid Chair Contents page 25
page 3
86.0381.00 Rev A |
27 |
A-dec 311, 411, and 511 Dental Chairs Service Reference |
Illustrated Parts Breakdown — 311 Chair | 28 |
311 Back Tilt
1
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3 |
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2 |
4 |
5 |
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3 |
6 |
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3 |
2 |
4 |
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4 |
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5 |
11 |
7 |
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10 |
8 |
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7
6
9
311 Mid Chair Contents
page 25
page 3
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