A dec 541 and 545 12 O'Clock Systems Instructions For Use

Instructions
for
Use
A-dec 500 12 O’Clock Systems
Model 541 Duo and 545 Assistant’s
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 United States 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.
Regulatory Information
Regulatory information mandated by agency requirements is provided in the Regulatory
Information, Specifications, and Warranty document (p/n 86.0221.00), which is available in the
Document Library at www.a-dec.com.
Product Service
Product service is available through your local authorized A-dec dealer. For service
information, or to locate an authorized dealer, contact A-dec at 1.800.547.1883 in the USA and
Canada or 1.503.538.7478 worldwide, or visit www.a-dec.com.
IFUbk10
CONTENTS
1 Introduction.................................................................................. 1
About Your A-dec 500 12 O’Clock System ...................................................................................1
2 Basic Operation ............................................................................. 3
Power / Master Toggle....................................................................................................................3
Handpiece Activation ......................................................................................................................4
Foot Control.......................................................................................................................................4
Chip Blower / Accessory Button ...............................................................................................4
Chair Lockout ...............................................................................................................................4
Touchpads .........................................................................................................................................4
Worksurface and Instrument Positioning.....................................................................................5
Height Adjustment.......................................................................................................................5
Instrument Positioning................................................................................................................5
Self-Contained Water System ........................................................................................................6
Assistant’s and Doctor’s Syringe....................................................................................................6
Vacuum Instrumentation ................................................................................................................7
Left/Right Conversion ................................................................................................................7
Optional Flex-Holder .......................................................................................................................8
3 Touchpad Controls.......................................................................... 9
Status Icon........................................................................................................................................10
Chair Positioning ............................................................................................................................10
Program Chair Preset Positions ...............................................................................................11
Customize the X-Ray/Rinse Button ........................................................................................11
Cuspidor Functions ........................................................................................................................12
Customize Cupfill and Bowl Rinse..........................................................................................12
Dental Light.....................................................................................................................................13
Dental Light Auto On/Off Feature .........................................................................................13
A/B Button ......................................................................................................................................13
Handpiece Settings (Deluxe Touchpad Only)............................................................................14
Standard Mode Programming .................................................................................................14
Forward/Reverse Button ..........................................................................................................15
Endodontics Mode Programming ...........................................................................................16
Other Handpiece Setting Choices ................................................................................................18
Auxiliary Control Buttons .............................................................................................................18
Touchpad Help Messages .............................................................................................................18
4 Adjustments and Maintenance ..........................................................19
Syringe Flow Adjustment..............................................................................................................19
Delivery System Adjustments ......................................................................................................19
Removing Control Covers ........................................................................................................19
Water Coolant Flow ..................................................................................................................20
Air Coolant Flow ........................................................................................................................20
Drive Air Pressure......................................................................................................................21
Tray Holder Rotation .....................................................................................................................22
Handpiece Tubing Maintenance ..................................................................................................23
Bulb Replacement for Fiber-Optic Tubing..................................................................................23
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A-dec 500 12 O’Clock Systems Instructions For Use
Oil Collector.....................................................................................................................................24
Solids Collector ...............................................................................................................................25
Utilities .............................................................................................................................................26
Air and Water Manual Shutoff Valves....................................................................................26
Air-Actuated Air and Water Shutoff Valves ..........................................................................26
System Air and Water Pressure Adjustments........................................................................26
Air and Water Filter Replacement ...........................................................................................27
Check for a Clogged Air or Water Filter ............................................................................27
Inspect and Replace the Filter .............................................................................................27
Water Screen Replacement .......................................................................................................28
Clean/Maintain ..............................................................................................................................28
HVE/Saliva Ejector Valve Body Assembly Asepsis .............................................................28
Disinfection ............................................................................................................................29
Routine Maintenance and Sterilization .............................................................................29
HVE/Saliva Ejector Tip Asepsis ..............................................................................................30
Disposable Tips .....................................................................................................................30
Sterilizable Tips .....................................................................................................................30
Barrier Protection .......................................................................................................................31
Waterline Treatment ..................................................................................................................31
Appendix: Specifications and Warranty ................................................32
Specifications...................................................................................................................................32
Minimum Air, Water, and Vacuum Service Requirements .................................................32
HVE and Saliva Ejector Opening for Tips ..............................................................................32
Warranty ..........................................................................................................................................32
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INTRODUCTION
1
Thank you for choosing A-dec equipment. This guide contains basic operating instructions,
adjustments, and maintenance for A-dec 500 systems at 12 o’clock.
About Your A-dec 500 12 O’Clock System
The A-dec 500 12 o’clock system is floor-mounted and installs with a variety of
Preference Collection® and Preference Slimline™ cabinets (see Figure 1). A number of
integrated accessories are available with your A-dec 500 system, including highspeed and
lowspeed handpieces, electric motors, intraoral cameras, ultrasonic instruments, curing
lights, and other options. For an overview of component features and options covered in
this guide, see Figure 2 on page 2.
Figure 1. A-dec 541 Duo on a Preference Collection 5580 Treatment Console
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A-dec 500 12 O’Clock Systems Instructions For Use
Figure 2. A-dec 541 Duo Features*
G
F
H
J
E
K
D
L
C
B
A
N
M
Item
Description
A
Flush Toggle
B
Control Center
C
Doctor’s Holder Assembly
D
Deluxe Touchpad (optional)
E
Solids Collector
F
Worksurface
G
Tray Holder (optional)
H
Assistant’s Instrumentation
J
Assistant’s Holder Assembly
K
Master Toggle
L
Doctor’s Syringe
M
Floor Mounting Hub
N
Oil Collector
*A-dec 545 includes similar features, minus doctor-side controls.
2
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B A S I C O P E RA T I O N
2
This section includes basic operating instructions for your A-dec 500 delivery system. For
touchpad operation, refer to “Touchpad Controls” on page 9.
Power / Master Toggle
The master toggle controls the power to the delivery system as well as other modules
mounted to the chair. Flip the toggle to turn the system on or off.
To prolong the life of your equipment, turn off the master toggle when the delivery
system is not in use.
NOTE
Figure 3. Master Toggle Location
Master
Toggle
CAUTION To prevent damage to your delivery system, do not use saline solution, mouth
rinses, or any chemical solutions not specified in this guide. Use a water supply system
separate from your delivery system if you need to use these types of solutions. As a general
rule, you can use drinking water as source water in your delivery system.
For complete instructions on water usage in your A-dec systems, refer to the
A-dec Self-Contained Water System Instructions For Use (p/n 86.0609.00) included with your
equipment.
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A-dec 500 12 O’Clock Systems Instructions For Use
Handpiece Activation
The handpieces automatically activate when you lift a handpiece from its holder. Press the
foot control to operate the activated handpiece.
Foot Control
The foot control regulates drive air to the active handpiece. It provides an air signal that
activates air coolant and water coolant flow. The foot control is equipped with a wet/dry
toggle and a chip blower/accessory button (see Figure 4). To turn the water coolant on or off,
use your foot to flip the wet/dry toggle.
NOTE The foot control has additional functionality when used with a deluxe touchpad or an
intraoral camera. The wet/dry toggle operates as a three-way switch with the air and water
coolant buttons on the touchpad.
Figure 4. Foot Control
Chip Blower/
Accessory Button
Wet/Dry Toggle
Chip Blower / Accessory Button
The chip blower/accessory button operates as either a chip blower or an accessory button (see
Figure 4). The chip blower function sends a jet of air through the handpiece without
activating the handpiece bur.
The accessory button function operates integrated accessory devices. For more details, see
your authorized A-dec dealer.
Chair Lockout
The deluxe touchpad inhibits the operation of the A-dec 511 chair when you remove a
handpiece from its holder and step on the foot control. This feature is also available on some
later model Performer® and Cascade® chairs and on systems that include an optional lockout
kit.
Touchpads
A-dec 500 touchpads centralize treatment room controls into one touch surface. Some
touchpad buttons have indicators to alert you if the operation is functioning. For complete
instructions on touchpad operation, see “Touchpad Controls” on page 9.
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Basic Operation 
Worksurface and Instrument Positioning
The round worksurface and instrument holders are height adjustable and offer flexible
instrument positioning.
Height Adjustment
To adjust the height of the worksurface and the instrumentation arm, lift the upper part of the
vertical post (see Figure 5) and slide the height adjustment ring to the desired position. Then
lower the vertical post onto the ring.
Figure 5. Adjust Worksurface and Arm Height
Height
Adjustment
Ring
Instrument Positioning
Instrumentation is delivered from holder assemblies that pivot and rotate to improve
positioning (see Figure 6). To adjust each individual holder position:
1. Pull holder slightly away from the adjacent one.
2. Rotate to the desired position and release.
Figure 6. Adjust Instrument Holder
1
2
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A-dec 500 12 O’Clock Systems Instructions For Use
Self-Contained Water System
The self-contained water system supplies water to handpieces, syringes, and cuspidor cupfill.
The system includes a 2-liter, quick-disconnect water bottle that mounts in a remote location
inside the cabinet (see Figure 7). For complete instructions on water usage in your A-dec 500
system, refer to the A-dec Self-Contained Water System Instructions For Use (p/n 86.0609.00)
included with your equipment.
Figure 7. Remote Self-Contained Water Bottle
Assistant’s and Doctor’s Syringe
To install the A-dec syringe tip, push the tip in until you feel two clicks. Press both buttons
simultaneously for the air/water spray.
IMPORTANT For detailed instructions on syringe usage, flow adjustment, and maintenance,
see the A-dec Syringes Instructions For Use (p/n 85.0680.00).
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Basic Operation 
Vacuum Instrumentation
The fully autoclavable HVE and saliva ejector include a quick-disconnect feature that allows
you to easily remove the valve body from the tubing for simple cleaning and sterilization. To
operate the HVE and saliva ejector, simply lift the valve lever (see Figure 8).
Figure 8. HVE and Saliva Ejector Operation
Opening (for tip)
Valve
Valve
Lever
HVE
Saliva Ejector
Left/Right Conversion
The HVE and saliva ejector can easily be converted for right- or left-handed operation. To
convert the HVE or saliva ejector to one side or the other, push the valve out of the HVE body
by pressing on the small diameter side. Rotate the valve 180°, then push it back into place.
Figure 9. HVE and Saliva Ejector Left/Right Conversion
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A-dec 500 12 O’Clock Systems Instructions For Use
Optional Flex-Holder
The optional flex-holder is a convenient holder position for additional accessories, such as a
curing light, or existing instrumentation (see Figure 10). The holder easily mounts on the
round worksurface.
Figure 10. Optional Flex-Holder
8
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TO U C H P A D C O N T R O L S
Your A-dec 500 12 o’clock system may include a standard or deluxe touchpad. The standard
touchpad controls chair, cuspidor, and dental light functions. The deluxe touchpad adds
controls for handpieces, electric motors, and several other options.
Figure 11. Standard and Deluxe Touchpads
Standard Touchpad
Deluxe Touchpad
Note: Touchpad symbols are proprietary to A-dec Inc.
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A-dec 500 12 O’Clock Systems Instructions For Use
Status Icon
The A-dec logo on the deluxe touchpad indicates the system status:
• Solid blue—normal operation and power is on Figure 12.
• Blinking— chair stop plate or cuspidor limit switch is active. The icon returns to solid blue
once you remove any obstructions.
Figure 12. Status Icon
Status Icon
Chair Positioning
Your touchpad provides manual and programmed controls for A-dec chair positioning.
The direction arrows on the touchpad allow you to manually move the chair base and back
up or down (see Table 1).
Table 1. Manual Chair Buttons
Icon
Action
or
Back down
or
Base down
or
Back up
or
Base up
Four programmable chair buttons, which can be easily customized, automatically move the
chair into a factory preset position (see Table 2).
Table 2. Programmable Chair Buttons / Factory Presets
Button
10
Position Description
or
Entry/Exit: Automatically positions chair for entry/exit and
turns off dental light.
or
Treatment 1: Automatically positions the chair base and back
down and turns on the dental light.
or
Treatment 2: Automatically positions the chair base and back
and turns on the dental light.
or
X-ray/Rinse: Automatically positions the chair for either x-ray
or rinse. Toggles between the x-ray/rinse and the last manual
position, and turns off the dental light.
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Touchpad Controls 
Program Chair Preset Positions
NOTE Please follow standard patient care precautions when using the chair preset position
functions.
To stop the chair at any point, push any chair positioning button on the footswitch or
touchpad.
To program chair preset positions Entry/Exit, Treatment 1, and Treatment 2:
1. Use the manual controls to adjust the chair position as desired (see Figure 13).
2. Press and release the program button (
programming mode.
or
). One beep indicates
3. Press the chair position button you wish to reset (for example, press
or
for
Entry/Exit). Three beeps indicates the new setting is programmed into memory.
Figure 13. Touchpad Chair Position Buttons
A
B
C
(A) Manual Chair Buttons; (B) Program Button; (C) Programmable Chair Preset Buttons
Customize the X-Ray/Rinse Button
The X-ray/Rinse button functions either as x-ray/rinse or as another preset position
(Treatment 3). To change the function of the X-ray/Rinse button:
1. Press and hold the program button and
or
simultaneously for three seconds.
○ One beep indicates the button has been configured as Treatment 3.
○ Three beeps indicates that X-ray/Rinse button has been configured as the
x-ray/rinse function (toggles between the x-ray/rinse and the previous position).
2. Program the preset position as instructed above, under “Program Chair Preset Positions.”
TIP If the X-ray/Rinse button is changed to a preset position, it operates the same as the
Treatment buttons 1 and 2.
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A-dec 500 12 O’Clock Systems Instructions For Use
Cuspidor Functions
The following table describes the cupfill and bowl rinse buttons:
Table 3. Cupfill and Bowl Rinse Buttons
Button
or
or
Description
Cupfill Button: Controls water flow from the cuspidor
into a cup.
• 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: Provides rinse water for the
cuspidor bowl.
• 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.
TIP Press the bowl rinse button (
or
) twice in less than two seconds to activate
the continuous operation mode. Press the button once to end the continuous bowl rinse mode.
Customize Cupfill and Bowl Rinse
To program the cupfill and bowl rinse timing:
1. Press and release the program button or, at the cuspidor, press and hold both the cupfill
and bowl rinse buttons located near the spout. One beep indicates the programming mode
is ready.
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.
If your system includes an A-dec relay module, you can use the touchpad a1 and a2 or
the bowl rinse and cupfill buttons to activate two auxiliary devices. See “Auxiliary Control
Buttons” on page 18 for information.
NOTE
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Touchpad Controls 
Dental Light
You can turn the dental light on or off from either the touchpad or the dental light. The dental
light button on the touchpad allows you to change intensity settings.
Halogen Dental Light: Press
to toggle between high and composite or medium and
composite. When the dental light is in composite mode, the indicator light blinks (see
Figure 14).
LED Dental Light: Press and release
to choose the desired intensity mode. When the light
is in cure-safe mode, the indicator light flashes (see Figure 14).
Figure 14. Dental Light Mode
Indicator Light
Dental Light
Button
To turn off the dental light, hold down
.
Dental Light Auto On/Off Feature
The dental light has an auto on/off feature. When you use a programmed chair position, the
dental light turns on when the chair back reaches operating position. Press Entry/Exit
(
or
) or X-ray/Rinse (
or
) and the dental light automatically turns off.
TIP If X-ray/Rinse button is changed to a preset position, the dental light auto feature
operates the same as the Treatment buttons 1 and 2.
To activate/deactivate:
• Press and hold
and the program button (
or
) simultaneously for three
seconds. One beep confirms the dental light auto feature is off. Three beeps confirm that
the dental light auto feature is on.
A/B Button
Deluxe touchpads include an A/B button (
) that offers you two separate sets of
programmable settings. The currently active set is indicated by the A or B in the touchpad
display (see Figure 15).
Figure 15. A/B Selection
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A-dec 500 12 O’Clock Systems Instructions For Use
Handpiece Settings (Deluxe Touchpad Only)
Standard Mode Programming
Activate the electric motor by lifting the handpiece from the holder. The settings on the
display are the ones last used for that handpiece position. The electric motor allows you to
choose a precise preset speed. Table 4 lists the factory presets for electric motors:
Table 4. Electric Motor Speed / Air and Water Coolant Presets (Standard Mode)
Memory Setting
Preset Speed
Air Coolant
Water Coolant
M1
2,000 RPM
On
On
M2
10,000 RPM
On
On
M3
20,000 RPM
On
On
M4
36,000 RPM
On
On
The deluxe touchpad allows you to program four memory buttons with your specific RPM
setting. With the A/B button, you can program two settings for each memory button, for a
total of 8 customized settings per handpiece (the endodontic mode offers an additional 8
memory settings).
NOTE If two operators use the delivery system, be sure to select the correct operator set (A or
B) before changing any memory settings. The currently active set is indicated by the A or B in
the touchpad display (see Figure 15 on page 13).
To program the handpiece setting:
1. Press the plus (+) and minus (-) buttons to adjust the RPM. The RPM values are displayed
in the display screen (see Figure 16).
2. If desired, press
or
to change air and water coolant settings.
3. To place the setting into memory, press
or
. One beep sounds.
4. Choose the desired memory setting by pressing m1, m2, m3, or m4. Three beeps confirm
the setting.
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Touchpad Controls 
Figure 16. Standard Mode Buttons and Settings
G
H
A
B
J
C
K
D
E
L
M
F
Item
A
Description
Item
Description
Memory Setting Indicator
G
Water Coolant Button
B
Water Coolant Indicator
H
Air Coolant Button
C
Air Coolant Indicator
J
Speed Limit Setting
D
A/B Operator Indicator
K
Forward/Reverse Indicator
E
Memory Buttons (m1 - m4)
L
Forward/Reverse Toggle Button
F
Program Button
M
Adjustment Buttons
Forward/Reverse Button
The forward/reverse button (see Figure 16) changes the electric motor’s direction. The system
defaults to the forward position when you return the motor to the holder or turn off the
system. In reverse mode, the screen icon flashes continuously.
You can also use the foot control to easily switch between forward and reverse. When
the motor has stopped, tap the accessory (chip/air) button to change the direction.
NOTE
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A-dec 500 12 O’Clock Systems Instructions For Use
Endodontics Mode Programming
In addition to handpiece speed adjustments, the Endodontics mode allows you to change a
number of settings based on the specific file and desired handpiece behavior. Icons in the
touchpad window reflect the settings (see Figure 17).
For more information regarding speed limit and torque limit for a specific file, consult
the file manufacturer.
NOTE
Figure 17. Endodontics Mode Buttons and Settings
F
A
G
5
H
J
B
C
K
D
E
L
Item
Description
Item
Description
A
Memory Setting Indicator
G
Warning Beep Indicator
B
A/B Operator Indicator
H
Endodontics Light Indicator
C
Attachment Ratio Setting
J
File Torque Limit/Unit Indicator
D
Memory Buttons (m1 - m4)
K
Forward/Reverse and Torque Mode
Indicator
E
Endodontics Mode Toggle Button
L
Forward/Reverse Toggle Button
F
File Speed Setting
To change a setting:
1. Lift the handpiece from the holder.
2. If the touchpad window is not in Endodontics mode, press
The endodontics screen is displayed.
or
.
3. Press the plus (+) or minus (-) button to activate the Endodontics change mode.
A white reverse video box appears.
4. Use the chair positioning buttons to move from setting to setting on the display.
5. Use the + and - buttons to change the setting as desired.
6. To place the speed limit, torque limit, and ratio into memory, press
memory button you want to set. Three beeps confirm the setting.
16
or
, then the
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Touchpad Controls 
The following table defines the touchpad display icons for the Endodontics mode:
Table 5. Endodontics Mode Settings
Icon
Auto Off
Setting
Description
Speed
Setpoint for file speed limit. For more information,
consult your file manufacturer.
Torque
Setpoint for file torque limit. For more information,
consult your file manufacturer.
Torque
Units
Toggles between Ncm (Newton centimeters) and gcm
(Gram centimeters). Adjusting this setting for one
handpiece changes it for all handpiece settings.
Note: 1 Ncm=102 gcm
Ratio
Sets the handpiece ratio. For more information, consult
your handpiece manufacturer.
Air Coolant
On/Off—when active, supplies air coolant to the
handpiece.
Water
Coolant
On/Off—when active, supplies water coolant to the
handpiece.
Light
Source
Enables/Disables endodontics handpiece light source.
Torque
Mode
Adjusting this setting for one handpiece changes it for
all handpiece settings. This icon appears with the
forward/reverse indicator.
• Auto-off—the motor shuts off when the file speed
reaches the torque limit.
• Auto-reverse—the motor stops and reverses
direction when the file reaches the torque limit.
• Auto-forward—when the file reaches the torque
limit, the motor stops, reverses 3 turns, then
changes back to forward again. Note: If the file is
stuck, this cycle repeats three times before the
motor stops.
Beeper
On/Off—when active, warning beep sounds when you
approach torque limit and double beeps when the file
auto-reverses. Adjusting this setting for one handpiece
changes it for all handpiece positions.
Auto Reverse
Auto Forward
NOTE A-dec|W&H endodontic attachments have a special feature due to their ball-bearing
design. Their life-long efficiency factor is stable and known, therefore the A-dec endodontics
system is able to control and display file torque very accurately. All other handpieces have
unknown life-long efficiency factors and therefore stated torque values are approximate.
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A-dec 500 12 O’Clock Systems Instructions For Use
Other Handpiece Setting Choices
Additional system choices are available. Consult your dealer to globally change to any of
these setting options:
• Auto-Off Delay—The amount of time the handpiece remains lit when idle. The default is
5 seconds. Stepping on the foot control refreshes the delay and the lamp relights. The light
stays on as long as you depress the foot control.
• Light Source Auto On/Off—When active, the handpiece light automatically turns on
when you lift the handpiece from the holder. Default in standard mode is On; in
endodontics mode is Off.
• Voltage—Depending on your brightness preference and the bulb manufacturer’s usage
guidelines, the voltage setting adjustment for each handpiece light source.
Auxiliary Control Buttons
If your system includes an A-dec relay module, you can use the touchpad to activate two
auxiliary devices. On deluxe touchpads, use the a1 and a2 buttons to activate these devices
(see Figure 18). For systems with a standard touchpad, the bowl rinse and cupfill buttons
serve as the auxiliary controls.
Figure 18. A1 / A2 Buttons
Standard Touchpad
Auxiliary
p
Buttons
Deluxe Touchpad
(when not used
for cuspidor)
Touchpad Help Messages
Help messages are displayed on the deluxe touchpad screen to provide information about
why an operation is disabled. For information on help messages, see the Regulatory
Information, Specifications, and Warranty document (p/n 86.0221.00), which is available in the
Document Library at www.a-dec.com.
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ADJUSTMENTS AND MAINTENANCE
4
Syringe Flow Adjustment
For syringe water and air flow adjustments, refer to your A-dec Syringes Instructions For Use
(p/n 85.0680.00).
Delivery System Adjustments
A-dec 500 delivery systems supply and regulate air and water to operate dental handpieces,
syringes, and ancillary devices. You can adjust the delivery system water coolant flow, air
flow, and drive air pressure.
When removing or replacing covers, take care not to damage any wiring or
tubing. Verify that the covers are secure after replacing them.
CAUTION
Removing Control Covers
To perform some adjustments on the A-dec 541 duo delivery system, you must remove the
control center covers. To remove them, locate the hole directly under the delivery system and
pull the covers apart (see Figure 19). To replace, position the covers over the delivery system
and snap together.
Figure 19. Opening for Cover Removal
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A-dec 500 12 O’Clock Systems Instructions For Use
Figure 20. Coolant Adjustment KeysWater Coolant Flow
Air Coolant
Adjustment Key
Water Coolant
Adjustment Keys
Water Coolant Flow
The system provides water coolant flow control for each handpiece. Use the adjustment key
to complete the adjustments (see Figure 20):
1. Turn the drive air, air coolant, and water coolant all the way down (clockwise). For
instructions on accessing drive air pressure controls, “Drive Air Pressure” on page 21.
NOTE
Air and water coolant adjustment keys are not intended to completely shut off flow.
2. Lift a handpiece from the holder.
3. Turn the water coolant on using the footswitch wet/dry toggle or touchpad.
4. Press the foot control to activate the handpiece.
5. Use the adjustment keys on the side of the control head to adjust the water coolant flow
(normally about 1 - 2 drops per second). Turn the key clockwise to decrease flow and
counterclockwise to increase flow.
Air Coolant Flow
The air coolant flow control adjusts the air coolant flow to all handpieces. Use the adjustment
key to complete the adjustment.
To adjust the air coolant:
1. Lift the handpiece from the holder.
2. If your system has a deluxe touchpad, use it to verify air coolant is on.
3. Insert an adjustment key into the air coolant flow control.
4. Press the foot control to activate the handpiece.
5. Adjust the air coolant flow to fit your needs. Turn the key clockwise to decrease flow and
counterclockwise to increase flow.
Do not turn the drive air or air coolant adjustment keys left beyond where the air
coolant no longer increases. The stem may come completely out.
CAUTION
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adjustments and Maintenance 
Drive Air Pressure
The digital drive air pressure gauge is located inside the control head. The gauge indicates the
drive air pressure (in psi) as it leaves the control block to the active handpiece. The drive air
pressure controls adjust the drive air pressure for each handpiece (see Figure 21).
Use a handpiece pressure gauge attached to the handpiece tubing for exact drive air
measurement. One bar equals 14.5 psi.
NOTE
Figure 21. Drive Air Adjustment
Drive Air
Controls
To adjust the drive air pressure, complete these steps for each handpiece (see Figure 21).
1. Lift handpiece tubing; locate drive air pressure gauge and controls inside the control head.
2. Press the foot control.
3. With the handpiece running, watch the gauge and adjust the handpiece drive air pressure
to meet manufacturer’s specifications.Turn the control clockwise to decrease flow and
counterclockwise to increase flow.
Refer to your handpiece documentation for the manufacturer’s drive air
pressure specifications.
NOTE
86.0605.00 Rev G
21
A-dec 500 12 O’Clock Systems Instructions For Use
Tray Holder Rotation
If the tray holder rotation is too tight or too loose, use a hex key to adjust the tension:
1. Insert a hex key through the mounting bracket (see Figure 22). If necessary, rotate the tray
holder or arm until the key slides completely into the mounting bracket.
2. While holding the bracket stationary, turn the tray holder or arm right to increase the
tension or left to reduce the tension.
Figure 22. Adjust Tray Holder Rotation (Traditional Control Head)
Hex Key
Tray Holder
Mounting
Bracket
Tray Arm
Note: Tray holder removed for clarity.
22
86.0605.00 Rev G
adjustments and Maintenance 
Handpiece Tubing Maintenance
Use the handpiece tubing flush system to move more water through the tubings in less time
than using the foot control. After each patient:
1. Disconnect the handpieces before flushing the tubings.
2. Gather handpiece tubings that use water coolant and hold them over a sink, cuspidor
bowl, or basin so the water is directed away from you and into the receptacle.
Figure 23. Flush Tubings
3. Locate the flush toggle on the side of the control center.
4. Hold the toggle down for 20–30 seconds.
NOTE
Discharge all tubing air and water lines for 20– 30 seconds after each patient.
Figure 24. Flush Toggle Location
Flush
Toggle
Control
Center
Bulb Replacement for Fiber-Optic Tubing
Follow these steps to replace the bulb in fiber-optic 5-hole silicone or vinyl tubing.
1. Disconnect the handpiece and swivel quick-connector from the tubing.
2. Pull back the metal handpiece nut. See Figure 25 on page 24.
3. Silicone tubing only: Slide back the metal portion of the handpiece terminal.
4. Replace the bulb. Silicone tubing only: To avoid the possibility of breaking the bulb, insert
the bulb into the socket. Then, insert the bulb tip into the recess before lowering the socket
and sliding the bulb fully into the recess.
5. Silicone tubing only: Reinsert the metal portion of the terminal into the plastic portion.
86.0605.00 Rev G
23
A-dec 500 12 O’Clock Systems Instructions For Use
6. Carefully slide the handpiece nut back over the terminal and reconnect the tubing to the
swivel quick-connector and handpiece.
Figure 25. Bulb Replacement
D
Silicone Tubing
B
A
E
C
F
E
Vinyl Tubing
B
G
(A) Plastic Handpiece Terminal; (B) Bulb; (C) Metal Portion of Handpiece Terminal;
(D) Silicone Tubing; (E) Metal Handpiece Nut; (F) Vinyl Tubing; (G) Metal Handpiece Terminal
Oil Collector
Service the oil collector on the delivery system once a week for normal use and more often for
heavier use. To service:
1. Unsnap the oil collector cover on the side of the unit (see Figure 26).
2. Discard the old gauze.
3. Fold a new square gauze pad (2" x 2", 51mm x 51mm) into quarters and place
inside the cover.
4. Snap the oil collector cover closed.
Figure 26. Remove Oil Collector
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86.0605.00 Rev G
adjustments and Maintenance 
Solids Collector
The solids collector helps prevent solids from entering the central vacuum system. To ensure
proper suction from the central vacuum and maintain proper treatment room asepsis, discard
and replace the solids collector screen at least twice a week (see Figure 27).
TIP For replacement screens, contact your authorized A-dec dealer and reference
Pinnacle p/n 5512 or A-dec p/n 11.1284.01.
Figure 27. Replace Solids Collector Screen
Due Date:
7/14/05
To replace the solids collector screen:
Infectious waste may be present. Follow asepsis protocol to prevent cross
contamination.
DANGER
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 your cuspidor. Doing so could plug the drain.
5. Insert new screen in the collector and replace the cap.
86.0605.00 Rev G
25
A-dec 500 12 O’Clock Systems Instructions For Use
Utilities
The utilities for A-dec 500 12 o’clock systems are located in the cabinet. To access the utilities,
lift up the removable cabinet panel. The utilities include the air/water shutoff valves, filters,
pressure pre-regulators, vacuum line, and electrical outlets (see Figure 28).
Figure 28. System Utilities
Air Pressure Gauge
Moisture Separator
Pre-Regulator
Knob
Air Manual
Shutoff Valve
Vacuum Line
Duplex Outlet
Water Manual
Shutoff Valve
Air and Water Manual Shutoff Valves
Shutoff valves control the air and water to the unit. To prevent leaks, these valves should
remain fully open (turned counterclockwise) except while your unit is being serviced.
Air-Actuated Air and Water Shutoff Valves
The air-actuated air and water shutoff valves automatically shut off air and water to the
system when the master toggle is in the Off position. This safety feature prevents water
damage in the event of a water leak while the unit is unattended.
System Air and Water Pressure Adjustments
Before making any adjustments, verify that the air compressor is turned on, and that it
maintains 80–100 psi pressure in the tank. If it doesn’t, refer to the compressor instructions.
To adjust air or water pressure:
1. Fully open manual shutoff valves (counterclockwise).
2. Turn the system on and check the pressure gauge (see Figure 28 on page 26). Air pressure
should be 70-80 psi.
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adjustments and Maintenance 
3. While watching the gauge, operate the syringe. If the system air pressure drops by more
than 15 psi, check for clogged filters (see Figure 29).
4. If adjustment of the air or water pressure is required, turn the appropriate pre-regulator
knob clockwise to increase pressure, or counterclockwise to decrease.
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 (see Figure 29).
Figure 29. Air and Water Filter Replacement
Filter Housing
O-Ring
Manual Shutoff
Valve
Filter
Beveled Edge
Check for a Clogged Air or Water Filter
1. Flip the master toggle to On.
2. While watching the air pressure gauge, press the syringe air button (see Figure 28 on
page 26). If the system air pressure drops by any more than 15 psi, replace the filter.
3. While watching the cuspidor, press the bowl rinse button. If the bowl rinse water pressure
fades or if the water flow stops, replace the filter.
Inspect and Replace the Filter
1. Flip the master toggle to Off.
2. Close the manual shutoff valves (turn right) (see Figure 29).
3. Bleed the system of air and water pressure by operating the syringe buttons until air and
water no longer flow.
4. Using a standard screwdriver, remove the filter housing from the air or water preregulator assembly and remove the filter.
5. Replace the filter if it is clogged or discolored; install the filter with the beveled edge facing
the manifold.
To ensure proper delivery system operation, make sure to install the filter with the
beveled edge facing the manifold (see Figure 29).
NOTE
86.0605.00 Rev G
27
A-dec 500 12 O’Clock Systems Instructions For Use
Water Screen Replacement
The manual water shutoff valve comes with a screen to prevent debris from entering the
delivery system (see Figure 30). Periodically check and replace this screen to ensure
unrestricted water flow to your delivery system.
To remove or replace a screen:
1. Flip the master On/Off toggle to Off.
2. Close the manual water shutoff valve (turn right) (see Figure 30).
3. Using a 5/8” or adjustable wrench, loosen the compression nut on the manual water
shutoff valve and pull the water regulator out of the shutoff valve (see Figure 30).
4. Remove the screen and install the replacement screen.
5. Reposition the water regulator in the manual shutoff valve outlet and tighten the
compression nut.
6. Open the manual water shutoff valve (turn left).
7. Flip the master On/Off toggle to On, and then check the fittings for leaks.
Figure 30. Water Screen Replacement
Compression
Nut
Water Shutoff Valve
Water Screen
Clean/Maintain
HVE/Saliva Ejector Valve Body Assembly Asepsis
Vacuum-lines should be cleaned at the end of each day by evacuating a
detergent or water-based detergent-disinfectant through the system.
NOTE
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adjustments and Maintenance 
If you use barrier film to protect the main body of the HVE and saliva ejector, replace the
barrier film after each patient. Clean and disinfect these instruments at the end of each day or
after each patient if the barrier film has been compromised. If you do not use barrier film, or if
you perform oral surgery, always clean and disinfect these instruments after each patient.
Disinfection
To disinfect the HVE and saliva ejector valve body assembly without disconnection
from the vacuum system:
1. Remove the vacuum tip from the HVE or saliva ejector.
2. Disinfect the valve body assembly by using an intermediate-level disinfectant according to
instructions for the disinfectant; A dec recommends a phenolic (dual) water-based
disinfectant.
3. Follow the manufacturer’s instructions for disinfectant contact time.
4. Operate the HVE and the saliva ejector valves several times to verify that they rotate
smoothly.
Routine Maintenance and Sterilization
A-dec valve body assemblies are heat tolerant for sterilization. Users may sterilize at
their discretion.
NOTE
To routinely maintain and sterilize the HVE and saliva ejector when disconnected from the
vacuum system (frequency determined by the user):
1. Turn off the vacuum or open the control valve before disconnecting the HVE or saliva
ejector.
2. Remove the vacuum tip from the HVE or saliva ejector. Discard disposable vacuum tips.
3. Remove the HVE or saliva ejector valve body assembly from the vacuum line by pulling it
away from the tubing at the tailpiece.
4. Disassemble the valve body assembly by pushing the control valve out of the HVE or
saliva ejector valve body.
5. Inspect the O-rings. Remove and discard if damaged.
6. Clean undamaged O-rings with a soft brush and a health authority approved detergent.
O-rings may be cleaned in place or removed and cleaned at the discretion of the user.
7. Clean all exterior and interior surfaces of the valve body and control valve using a health
authority approved detergent and the brushes provided with the product (or equivalent).
Lumens or channels of the valve body must be cleaned with a brush of the proper length
and diameter. The brush must be long enough to extend through the lumen.
8. Rinse thoroughly with water.
9. Process the disassembled valve body assembly components through a washer-disinfector.
If a washer-disinfector is unavailable, valve body assembly components must be manually
disinfected using a health authority approved disinfectant.
10.Allow the components to dry completely.
11.Sterilize the valve body assembly components at 132-134°C (270-273°F) for 4 minutes in a
pre-vacuum sterilizer or at 132-134°C (270273°F) for 6 minutes in a gravity displacement
sterilizer.
86.0605.00 Rev G
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A-dec 500 12 O’Clock Systems Instructions For Use
12.Prior to use, replace O-rings as needed, lubricate O-rings with A-dec silicone lubricant,
and reassemble the valve body assembly.
Use only silicone lubricant when lubricating instrumentation O-rings. Petroleumbased products will cause permanent damage to the O-rings.
CAUTION
13.Reinstall the valve body assembly on the tubing tailpiece.
14.Operate the HVE and the saliva ejector control valves several times to verify that they
rotate smoothly.
HVE/Saliva Ejector Tip Asepsis
Select tips that are compatible with your HVE and saliva ejector openings. See “HVE
and Saliva Ejector Opening for Tips” on page 32 for specifications.
NOTE
Disposable Tips
Heat sterilize stainless steel HVE tips after each use. If you are using disposable HVE and
saliva ejector tips, replace them with new tips after each use.
CAUTION
reused.
Disposable HVE and saliva ejector tips are not sterilizable and should not be
Sterilizable Tips
To clean and sterilize a stainless steel HVE tip:
1. Remove the tip from the HVE.
2. Clean and rinse the tip using a mild detergent and water, then allow the tip to dry
completely.
3. Sterilize at 132-134°C (270273°F) for 4 minutes in a pre-vacuum sterilizer or at 132-134°C
(270273°F) for 6 minutes in a gravity displacement sterilizer.
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86.0605.00 Rev G
adjustments and Maintenance 
Barrier Protection
A-dec recommends barrier protection for all applicable touch and transfer surfaces. Touch
surfaces are areas that come into contact with hands and become potential crosscontamination points during dental procedures. Transfer surfaces are areas that come into
contact with instruments and other inanimate objects.
In the USA, barriers must be produced under the Current Good Manufacturing Practice
(CGMP) as specified by the U.S. Food and Drug Administration (USFDA). For regions
outside the USA, refer to the medical device regulations specific to your location.
CAUTION
If you use barriers, always replace the barrier film after each patient.
IMPORTANT For recommendations on cleaning and chemical disinfection of touch and
transfer surfaces (where barrier protection is not applicable or when barriers are
compromised), please see the A-dec Equipment Asepsis Guide (p/n 85.0696.00) included with
your equipment. This document is also available at www.a-dec.com in the Document Library.
Waterline Treatment
For recommended treatment of your dental unit waterlines, refer to the A-dec Self-Contained
Water System Instructions For Use (p/n 86.0609.00).
86.0605.00 Rev G
31
APPENDIX: SPECIFICATIONS AND
WA R RA N T Y
A
Specifications
Minimum Air, Water, and Vacuum Service Requirements
Air:
2.50 scfm (70.80 l/min) at 80 psi (551 kPa)
Water:
1.50 gpm (5.68 l/min) at 40 psi (276 kPa)
Vacuum: 12 cfm (339.84 l/min) at 8 inches of mercury (27 kPa)
HVE and Saliva Ejector Opening for Tips
A-dec Standard HVE: 0.435" ± 0.006" (11.05 ± 0.15 mm)
A-dec 15 mm HVE:
0.592" (14.8 mm)
A-dec saliva ejector:
0.265 ± 0.006" (6.73 ± 0.15 mm)
For electrical specifications, identification of symbols, and other regulatory requirements,
refer to the Regulatory Information, Specifications, and Warranty document (p/n 86.0221.00)
included with your equipment.
Specifications are subject to change without notice. Some requirements may vary from
country to country. For more information, contact your authorized A-dec dealer.
NOTE
Warranty
Warranty information is provided in the Regulatory Information, Specifications, and Warranty
document (p/n 86.0221.00), which is available in the Document Library at www.a-dec.com.
32
86.0605.00 Rev G
A-dec Headquarters
2601 Crestview Drive
Newberg, Oregon 97132
United States
Tel: 1.800.547.1883 within USA/CAN
Tel: +1.503.538.7478 outside USA/CAN
Fax:1.503.538.0276
www.a-dec.com
A-dec Australia
Unit 8
5-9 Ricketty Street
Mascot, NSW 2020
Australia
Tel: 1.800.225.010 within AUS
Tel: +61.(0).2.8332.4000 outside AUS
A-dec China
A-dec (Hangzhou) Dental Equipment Co., Ltd.
528 Shunfeng Road
Qianjiang Economic Development Zone
Hangzhou 311106
Zheijiang, China
Tel: +1.503.538.7478
A-dec United Kingdom
Authorized EU Representative
Austin House, 11 Liberty Way
Nuneaton, Warwickshire CV11 6RZ
England
Tel: 0800.ADEC.UK (2332.85) within UK
Tel: +44.(0).24.7635.0901 outside UK
Ív&%ÂÈG9Î
86.0605.00 Rev G
Copyright 2014 A-dec Inc.
All rights reserved.

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