A-dec 500 User Manual 39-78
85.0816.00 Rev A 2004-11 (PCA 04002.12) Page 39
A-dec Service Guide, Vol. II Doctor’s Side
The doctor’s side of the A-dec 500 system includes both the Traditional (model 532)
and Continental
®
(model 533) delivery systems, the front-mount monitor (model 531),
and self-contained water system.
The delivery system supplies and regulates the air and water used to operate dental
handpieces, syringes, and accessories. The A-dec 532 and 533 delivery systems have
been designed to mount only to the A-dec 511 chair and communicate with the entire
A-dec 500 product line through the Data Communications System (DCS).
This section of the A-dec Service Guide,Vol.II contains the electrical and plumbing flow
diagrams for the delivery systems, along with illustrations of exploded parts,
troubleshooting and adjustments for all of the doctor’s side modules.
For information on service parts, see the Genuine A-dec Service Parts Catalog, or contact
A-dec customer service.
Page 40 85.0816.00 Rev A 2004-11 (PCA 04002.12)
Delivery System Components A-dec Service Guide, Vol. II
A-dec 500 Delivery System Components
The A-dec 500 delivery systems and front-mount monitor both mount to the A-dec 511 chair.This mounting structure provides left/right
capabilities for both the delivery system and the monitor.
Item # Description
1
Delivery system cover
2
Delivery system front cover
3
Touchpad
4
Brake handle
5
Flexarm
6
Front-mount arm
7
Flexarm hub
8
Front-mount casting
Figure 25. Delivery system and front-mount arm components.
1
6
3
2
7
5
4
8
85.0816.00 Rev A 2004-11 (PCA 04002.12) Page 41
A-dec Service Guide, Vol. II Delivery System Components
Internal Control Components
The A-dec 532 and 533 delivery systems feature a structural platform in the base of the control head.This metal mounting grid allows easy
attachment of component parts and extra control modules required by accessories.
Figure 26. Identification of the internal control components mounted on the structural platform.
Item # Description
1
Scaler control module
2
Electric micromotor control module
3
Curing light control module
4
Camera control module
5
Control block
6
Delivery system circuit board
7
Touchpad
8
Accessory holder
7
6
5
4
3
1
2
8
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85.0816.00 Rev A 2004-11 (PCA 04002.12) Page 43
A-dec Service Guide, Vol. II Delivery System Covers
How to Remove the Delivery System Covers
The delivery system covers are designed for easy access to control components.
Delivery System Cover
Lift up on the center tab on the back of the delivery system cover and then, lift up the tabs
on both sides of the delivery system cover and open the cover. Pinch the hinge brackets at
the cover base to remove the cover.
Delivery System Front Cover — Continental
Move the whips forward, and remove the two screws holding the delivery system front cover
in place. Open the front cover carefully, until the lanyard is taut.
CAUTION: Remove handpieces from the delivery system before opening the delivery
system front cover.
Delivery System Front Cover — Traditional
Remove the two screws holding the delivery system front cover in place. Slide the front
cover forward and lift up.
Figure 27. Open the delivery system cover.
A
A
Figure 28. Open the delivery system front covers.
(A) screw
Page 44 85.0816.00 Rev A 2004-11 (PCA 04002.12)
Flow Diagram A-dec Service Guide, Vol. II
Delivery System Flow Diagram
This flow diagram details both electrical and plumbing information for servicing and troubleshooting A-dec 532 and 533 delivery systems. It is
located on the inside cover of the delivery system.This diagram includes the plumbing and wiring for the standard touchpad, deluxe touchpad,
camera, and electric micromotor.
85.0816.00 Rev A 2004-11 (PCA 04002.12) Page 45
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How to Identify Delivery System Circuit Board Components
(P/N 90.1076.00)
The delivery system circuit board has a wide range of functionality with a built-in
intraoral light source, drive air pressure digital readout, and status LEDs.Transducers
translate air signals to electronic signals, communicating with the touchpad and other
components when a handpiece is ready for use.
Item # Description
1
P1, P2, P3 - Data line ports (DCS)
2
J6 - Scaler power terminal strip
3
J4, J5 - Intraoral light source strip and LEDs DS7,
DS8, DS9, DS10
4
J2 - 24 VAC terminal strip
5
J2 - Ø VAC terminal strip
6
DS6 - Air coolant solenoid LED and connector
7
DS5 - Water coolant solenoid LED and connector
8
X8 - Water coolant signal transducer
(foot control toggle)
9
X7 - Air coolant signal transducer
10
X6 - Accessory button (foot control)
signal transducer
11
X5 - Drive air signal transducer
12
X4 - Handpiece 4, holdback transducer
13
X3 - Handpiece 3, holdback transducer
14
X2 - Handpiece 2, holdback transducer
15
X1 - Handpiece 1, holdback transducer
16
J3 - Handpiece 5, terminal strip
17
DS11, DS12 - Drive air LED display
18
DS1 - AC Power LED
19
DS2 - Status LED
20
DS3 - Data LED
21
S2 - Increase intraoral light source voltage adjustment
22
S1 - Decrease intraoral light source voltage adjustment
23
DS13 - Scaler relay LED
Delivery System Circuit Board A-dec Service Guide, Vol. II
85.0816.00 Rev A 2004-11 (PCA 04002.12) Page 47
Figure 29. Components of the delivery system circuit board.
1
17
18
19
20
22
21
A-dec Service Guide, Vol. II Delivery System Circuit Board
23
2
3 4 5 6
7
8
9
10
11
12
13
14
15
16
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85.0816.00 Rev A 2004-11 (PCA 04002.12) Page 49
A-dec Service Guide, Vol. II Illustrated Parts
Handpiece Flush Toggle
(P/N 33.0168.00)
The flush toggle is located on the back of the delivery system. It uses holdback air to
operate the handpiece flush function. When the momentary valve is on, the
holdback air is exhausted and air signal is sent toward the water cartridge.
If the handpiece is in the holder (holdback active), the flush will not be activated.
If the handpiece is out of the holder (holdback exhausted), the flush will operate.
Item #
Part Number
Description
1
006.009.00
Hex nut 15/32-32" x 9/16 x 3/32"
2
33.0036.02
Momentary toggle lever
3
030.003.02
O-ring, .056 ID x .060 W, pkg 10
4
013.076.00
Spring, compression, .360 OD x .35 FL
5
011.038.01
Straight pin, .062 Dia x .430 Lg, SS, pkg 5
6
023.004.03
Barb, 1/8" x 10-32, pkg 10
7
004.005.02
Flat nylon washer, .187 ID,pkg 10
8
33.01470.00* Stem
9
80.5025.00* Spacer
1
2
9
8
3
4
5
6
7
Figure 30. Identification of the handpiece flush
toggle components.
* Item not for sale.
Page 50 85.0816.00 Rev A 2004-11 (PCA 04002.12)
Illustrated Parts A-dec Service Guide, Vol. II
Master On/Off Toggle
(P/N 33.0048.04)
The master On/Off toggle is located on the side of the delivery system.The toggle operates with unregulated air and supplies air to the chair
air/water manifold and the control block, for holdback air.
Item #
Part Number
Description
1
33.0050.00
Round toggle valve body
2
011.038.01
Straight pin, .062 Dia x .430, pkg 5
3
22.0040.00
Compression spring, .300 OD x .40
4
030.001.02
O-ring, pkg 10
5
29.0840.00
Valve stem with O-rings, 3-way
6
22.0462.02
Plastic toggle valve lever,Surf 4
7
006.009.00
Hex nut, 15/32-32" x 9/16 x 3/32"
8
006.069.00
Knurl nut, 15/32-32"
1
2
3
4
5
6
7
8
Figure 31. Identification of the master On/Off toggle components.
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