Valleylab CUSA EXcel-8 User manual

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DO
=Falleylab. Service Manual
CUSA EXcel""-8 System

Preface
This
manual
and
the
equipment
it
describes
are
for
use
only
by
qualified
medical
professionals
trained
in
the
particular
technique
and
surgical
procedure
to
be
performed.
It
is
intended
as
a
guide
for
servicing
the
CUSA
EXcel
ultrasonic
surgical
aspirator
only.
Equipment covered in this manual
CUSA
EXcel™
ultrasonic
surgical
aspirator
with
23
kHz
and
36
kHz
handpieces.
The CUSA EXcel "System Service Manual consists of two parts—the text
{part 1 of 2) and a Schematics Supplement (part 2 of 2), which contains the
schematics.
Vatleytab Part Number 945 103 105
Effective Date October 2004
Trademark acknowledgements
CUSA EXcei™, TISSUE Select™, MacroTip™, MicroTip™, PrecisionTip™,
CEM™, and Force FX™ are trademarks of Valleylab.
Ajax“ is a registered trademark of the Colgate-Palmolive Company.
Comet“ is a registered trademark of Procter & Gamble.
Torgue Seal“ is a registered trademark of Organic Products Co.
Manufactured by
Valleylab
a division of Tyco Healthcare Group LP
Boulder, Colorado 80301-3299 USA
© 2004 Valleylab All rights reserved. Contents of this publication may
not be reproduced in any form without the written permission of
Valleylab.
Tyco Healthcare UK Ltd.
Gosport, PO13 OAS, UK
1-303-530-2300 Made in USA Printed in USA
C € Patent Information
0086 One or more of the following U.S. patents and corresponding foreign
patents cover the CUSA EXcel system:
4734964 4768496 4827911 4921476 4931047
4988334 5015227 5190517 5421829 5466020
5484398
5847046 6214817 6256859 6499858
ii CUSA EXcel-8 System Service Manual

About This Manual
The service manual describes the CUSA EXcel ultrasonic surgical
aspirator. It presents the CUSA EXcel as a system that includes a console,
handpieces, and accessories:
* Descriptions of the system, its functions, specifications, and theory of
operation
* Step-by-step instructions on how to unpack, install, maintain,
calibrate, and troubleshoot the system
© Step-by-step instructions on how to replace specific components
e Parts lists, board layouts, and schematics.
- Organization
We have organized this guide to introduce the safety issues, the system,
and its functions. After safety and the system, the guide gives instructions
for unpacking the system, then describes its components, technical
specifications, and theory of operation. The next sections tell you how to
check out, maintain, troubleshoot, replace parts, and calibrate the system.
A schematics supplement includes printed circuit board (PCB) layouts
and schematics.
CUSA
EXcel-8
System
Service
Manual
iii

rr
m
Conventions Used in this Guide
indicates a potentially hazardous situation which, if not avoided, could result in
death or serious injury.
indicates a hazardous situation which, if not avoided, may result in minor or
moderate injury.
Notice
Indicates a hazard which may result in product damage.
A
D important
Indicates an operating tip or
maintenance suggestion.
iv
CUSA
EXcel-8
System
Service
Manual

Table of Contents
Preface ii
About This Manual iii
Organization iii
Conventions Used in this Guide iv
List of Figures xiii
List of Tables xvi
Section 1. Service Personnel Safety
Safety Information 1-1
Warnings, Cautions, and Notices 1-1
General 1-2
Introduction 1-2
Unpacking and Installing the CUSA EXcel System 1-2
Console Components 1-2
Technical Specifications 1-2
Checkout Procedures 1-3
Maintaining the CUSA EXcel System 1-3
Troubleshooting 1-4
Replacement Procedures 1-4
Calibration 1-5
Repair Policy 1-5
Section 2. Introduction
For Your Information 2-1
Overview 2-2
Fragmentation 2-2
Tip Motion 2-2
Cooling 2-2
Irrigation 2-3
Aspiration (Suction) 2-4
Handpieces 2-5
Wide Variety of Tips 2-5
Section 3. Unpacking and Installing the CUSA EXcel System
The Responsibility of the Manufacturer 3-1
Unpacking the CUSA EXcel System 3-2
Tools You Will Need 3-2
Unpacking Procedure 3-2
Preparing the CUSA EXcel Console for Use 3-8
Replacing the Power Connector 3-9
CUSA
EXcel-8
System
Service
Manual

K
Replacing Fuses (lf Necessary) 3-10
Replacing a Control Panel Overlay (Optional) 3-11
installing the Reference Card Set 3-15
Section 4. Console Components
For Your Information 4-1
Console Overview and Structural Features 4-2
LV,
Pole 4-3
Control Panel 4-3
Arm and Arm Housing 4-3
Housing for Irrigation Pump Head and Suction Pinch Valve 4-3
Console Body 4-3
Shelf for Suction Canister 4-3
Casters 4-3
Control Panel 4-4
Alerts 4-5
Lap Mode, Prime, Test, and Status Buttons 4-5
Displays 4-5
Status Indicators 4-7
Setpoint Adjustment Buttons 4-7
Console Body Front Panel 4-8
Handpiece Connector Receptacle 4-8
Suction Pinch Valve 4-9
System Power Switch 4-9
Irrigation Pump Head 4-9
Contamination Guard 4-9
Retaining Bail for Suction Canister 4-9
Console Body Side Panel 4-10
Control Panel 4-11
Rotation Lock Handle 4-11
Housing for Irrigation Pump Head and Suction Pinch Valve = 4-11
LV. Pole 4-11
1.V. Pole Release Button 4-11
Arm and Arm Housing 4-11
Arm Release Tab 4-11
Cooling Water Reservoir 4-11
Console Body Rear Panel 4-12
Speaker 4-13
Volume Control 4-13
Footswitch Connector Receptacle 4-13
AC Main Switch 4-13
Fuses 4-13
Footswitch 4-13
vi
CUSA
EXcel-8
System
Service
Manual

AC PowerCord 4-15
Equipotential Grounding Lug 4-15
Label 4-15
Cord Wraps 4-15
Storage Compartment 4-15
Symbols on the Control Panel 4-16
Other Features 4-18
Filling the Cooling Water Reservoir 4-18
Raising/Lowering the Arm 4-18
Rotating the Control Panel 4-19
Adjusting the Tone Volume 4-19
Adjusting the I.V. Pole 4-20
Section 5. Technical Specifications
Console Dimensions 5-2
CUSA EXcel Console 5-2
Footswitch 5-2
Console Subsystems 5-2
Ultrasonic 5-2
Fluidic System 5-3
Electrical Requirements 5-3
Input Power Source 5-3
Power Cords 5-3
Low Frequency Leakage 5-4
Duty Cycle 5-4
Environment 5-4
Standards and IEC Classifications 5-5
Class | Equipment (IEC 601-1) 5-5
Type BF Applied Part Equipment (IEC 601-1) 5-5
IPX - 8 (IEC 529, UL 2601) Footswitch 5-5
Electromagnetic Interference 5-6
System Power Off / Standby 5-6
Pinch Point in the Suction Pinch Valve 5-6
Fuse Replacement 5-6
Footswitch Symbols 5-6
Voluntary Standards 5-7
Statutory and Regulatory Requirements 5-7
EMC Compatibility 5-7
Handpieces 5-12
Nominal Frequencies 5-12
Dimensions 5-12
Tip Specifications 5-12
CUSA
EXcel-8
System
Service
Manual
vil

K
23 kHz 5-13
36 kHz 5-14
Section 6. Principles of Operation
How the Handpiece Works 6-2
Electromechanical Operation 6-2
Fragmentation 6-3
Cooling 6-3
How the TISSUE Select Feature Works 5-4
Inherent Tissue Selectivity 6-5
increasing Tissue Selectivity 6-5
TISSUE Select Reduces Reserve Power tothe Tip 6-6
Benefits of TISSUE Select 6-8
A Common Misunderstanding of the Amplitude Setting 6-9
Section 7. Circuit Theory
For Your Information 741
Display Board 7-2
General Description 7-2
Fundamentals of Operation 72
Detailed Circuit Description 7-3
Machine Control Board 7-4
Introduction 7-4
Irrigation Pump 7-4
Suction Pump 7-5
Cooling Pump 7-6
Suction Valve 7-6
Amplitude Control 7-6
Valve Controls. 7-7
Power Control Input and Output Signals 7-7
Valtage Regulators 7-8
interface Connectors 7-8
Ultrasonics Board-Ultrasonic Generator 7-8
Fundamentals of Operation 7-8
The Main Frequency Loop 7-9
Bandpass Filter (BPF) 7-9
AGC/Error Amplifier Circuit 7-19
Phase Compensator 7-11
Driver Stage 7-11
Feedback Signal 7-12
Bias Circuitry 7-12
Frequency Selection Circuitry 7-12
Ultrasonics Board-Other Circuits 7-13
viii CUSA EXcel-8 System Service Manual

Audible Alert and Operation Indicator 7-13
Valve Drivers 7-13
Power and Other Signal Connections 7-13
Dual 24 V Power Supply Board 7-13
Section 8. Checkout Procedures
Inspections 8-1
Footswitch 8-1
Power Cord 8-2
Power On Verification 8-2
Handpiece Test (Optional) 8-2
: Section 9. Maintaining the CUSA EXcel System
For Your Information 9-1
Recommended Maintenance Schedule 9-2
Clean the CUSA EXcel Console 9-3
Clean the Sterilizer Case 9-3
Maintain the Handpiece 9-3
Clean the Handpiece 9-4
Lubricate the Handpiece Connector O-Rings 9-5
Replace the Handpiece Connector O-Rings 9-5
Recalibrate the Handpiece 9-5
Maintain the Tip Torquing Set 9-6
Clean the Tip Torquing Set 9-6
Check the Torque on the Tip Torquing Wrench 9-6
Store the CUSA EXcel System and Accessories 9-7
CUSA Console 9-7
Handpiece 9-7
Footswitch 9-7
CEM Nosecone 9-7
Section 10. Troubleshooting
For Your Information 10-1
Troubleshooting Safety 10-2
User Troubleshooting 10-2
Responding to Alerts 10-3
General Troubleshooting 10-6
Engineer Troubleshooting 10-15
Guidelines 10-15
Flowcharts 10-15
No Power 10-16
Handpiece Alarm 10-17
|
CUSA
EXcel-8
System
Service
Manual
*

K
Footswitch Alarm 10-18
Cooling Water Alarm 10-19
Low Suction 10-20
Low irrigation 10-22
Vibration Alarm 10-23
Section 11. Replacement Procedures
For Your Information 11-2
Console Cavers 11-3
Open the Left Cover 11-4
- Open the Right Cover 11-4
Open the Rear Cover 11-4
Re-install the Left Cover 11-5
Re-install the Right Cover 11-5
Re-install the Rear Cover 11-5
Dual 24 Volt Power Supply 11-6
Remove the Dual 24 Volt Power Supply 11-6
Install the Dual 24 Volt Power Supply 11-6
Ultrasonics and Machine Control Printed Circuit Boards 11-8
Remove the Ultrasonics PCB 11-8
install the Ultrasonics PCB 11-11
Remove the Control Panel Assembly 11-13
Remove the Machine Control PCB 11-14
Install the Machine Control PCB 11-14
install the Control Panel Assembly 11-15
Control Head Components 11-15
Remove the Control Panel Assembly 11-17
Remove the Machine Control PCB 11-18
Remove the Control Panel Overlay 11-18
Remove the Display PCB 11-18
install the Display PCB 11-19
Install the Control Panel Overlay 11-20
install the Machine Control PCB o 11-20
Install the Control Panel Assembly 11-20
Suction Control Valve 11-21
Remove the Suction Control Valve 11-21
Install the Suction Control Valve 11-27
Suction Pump and Controller Card 11-29
Remove the Suction Pump 11-29
Install the Suction Pump — 11-34
Ready for Suction Pump Controller Card Replacement 11-35
Remove the Suction Pump Controller Card 11-36
x
CUSA
EXcel-8
System
Service
Manual

Install the Suction Pump Controller Card 11-37
Suction Pinch Valve 11-38
Remove the Irrigation Pump Bezel 11-38
Remove the Suction Pinch Valve 11-38
Install the Suction Pinch Valve 11-40
Instali the Irrigation Pump Bezel 11-40
Irrigation Pump Head and Gear Motor 11-41
Remove the Irrigation Pump Bezel 11-41
Remove the Irrigation Pump Head 11-42
Install the Irrigation Pump Head 11-42
Remove the Irrigation Pump Gear Motor 11-43
Install the Irrigation Pump Gear Motor 11-45
Replace the Irrigation Pump Bezel 11-45
Handpiece Flow Sensor 11-46
Remove the Handpiece Flow Sensor 11-46
Install the Handpiece Flow Sensor 11-48
Cooling Water Pump Tubing 11-49
Tools and Materials 11-49
Remove the Cooling Water Pump Head 11-49
Install Tubing and Re-Assemble the Cooling Water Pump Head 11-50
Cooling Water Reservoir O-Rings 11-51
O-Rings on the Cooling Water Reservoir Connectors 11-51
Fuses 11-52
Section 12. Calibration
For Your Information 12-1
Tools/Equipment Needed for Calibrations 12-2
DC Bias Power Supply 12-2
Suction Pump 12-3
Motor for the Cooling Water Pump 12-3
Set Up 123
Procedure 12-4
Section 13. Repair Policy
Return Equipment for Service 13-2
Obtaining a Return Authorization Number 13-2
Returning the Console 13-2
Returning the Handpiece 13-9
Returning Circuit Boards 13-9
Ordering Replacement Parts 13-9
Valleylab Service Centers 13-10
i
CUSA
EXcel-8
System
Service
Manual
*

Section 14. Service Parts Lists
Ordering Replacement Parts 14-1
Replacement Parts 14-2
Handpiece Cooling 14-2
Irrigation 14-2
Miscellaneous 14-3
Power 14-4
Suction 14-4
Electronic Parts 14-4
Ultrasonics PCB Parts 14-5
Appendix A. Warranty
Schematics Supplement. Assembly Drawings and Schematics
xii
CUSA EXcel-8 System Service Manue

List of Figures
Figure 2-1. The pre-aspiration holes and threads on tips 2-3
Figure 2-2. The three handpieces in the CUSA EXcel system 2-5
Figure 3-1. Replacing fuses 3-10
Figure 3-2. Disconnecting control panel assembly cables 3-11
Figure 3-3. Removing the control panel overlay 3-12
Figure 3-4. _ Installing the control panel overlay 3-14
Figure 3-5. Installing the reference cards 3-15
Figure 4-1. Console structural features 4-2
Figure 4-2. Control panel features 4-4
Figure 4-3. Control panel features (continued) 4-6
Figure 4-4. Console body—front view 4-8
Figure 4-5. Console body—view of the right side 4-10
Figure 4-6. Console—rear view 4-12
Figure 4-7. Console—rear view (continued) 4-14
Figure 4-8. Control panel symbols 4-16
Figure 6-1. The handpiece components 6-2
Figure 6-2. Reserve power vs. TISSUE Select settings 6-7
Figure 6-3. Reserve power vs. amplitude setting 6-9
Figure 7-1. The display organization on the control panel 7-3
Figure 9-1. Cleaning the handpiece with a soft cloth 9-4
Figure 9-2. Replacing the handpiece connector o-rings 9-5
Figure 11-1. Right and left sides of the console 11-3
Figure 11-2. The wiring harness on the dual 24 volt power supply 11-7
Figure 11-3. Cables on the ultrasonics PCB assembly 11-9
Figure 11-4. The ultrasonics PCB fan assembly connections 11-10
Figure 11-5. Plugging the adapter for the syphon valve cable assembly into the
connector at J6 on the ultrasonics PBC 11-11
Figure 11-6. Disconnecting control panel assembly cables 11-13
Figure 11-7. Removing the Machine Control PCB from the control panel assembly
11-14
Figure 11-8. The layers of control head components 11-16
Figure 11-9. Disconnecting control panel cables 11-17
Figure 11-10. Disconnecting the 50-pin ribbon cable and removing the Machine
Control PCB 11-19
Figure 11-11. Removing the Display PCB from the control head assembly 11-19
Figure 11-12. Removing the ends from the suction pump chamber 11-23
|
CUSA
EXcel-8
System
Service
Manual
xiii

Figure 11-13.
Figure 11-14.
Figure 11-15.
Figure 11-16.
Figure 11-17.
Figure 11-18.
Figure 11-19.
Figure 11-20.
Figure 11-21.
Figure 11-22.
Figure 11-23.
Figure 11-24.
Figure 11-25.
Figure 11-26.
Figure 11-27.
Figure 11-28.
Figure 11-29.
Figure 11-30.
Figure 11-31.
Figure 11-32.
Figure 11-33.
Figure 11-34.
Figure 11-35.
Removing
the
suction
pump
enclosure
from
the
console
11-23
Disconnecting the suction tube at the contamination guard 90°
elbow 11-24
Disconnecting the suction tube from the left end of the suction
control valve 11-24
Pulling the strain relief bushing away from the manifold bracket 11-25
Removing the manifold bracket from the console 11-25
Removing the suction control valve from the manifold bracket 11-26
Removing the suction hose and clamp from the suction control valve
11-27
Removing the suction tube and clamp from the “T” fitting 11-30
Pulling the split bushing away from the manifold bracket 11-30
Disconnecting cables from the suction pump to the suction pump
controller card 11-31
Removing the suction tube and strain relief bushing from the suction
pump and its wires 11-33
Removing the suction pump from its bracket mount 11-33
Attaching the suction pump motor to its mounting bracket, making
sure to center the pump on the bracket 11-34
Removing the cable clamps and screws from the suction pump
controller card 11-36
rs
tema
e
Removing the irrigation pump bezel 11-39
Removing the suction pinch valve 11-39
Removing the irrigation pump bezel 11-41
Removing the irrigation pump head 11-42
Disconnecting the irrigation pump gear motor from the control card
11-43
Replacing the gear motor/pump head coupler on the motor drive
shaft 11-44
Replacing the handpiece flow sensor 11-47
Removing the end bell and tubing from the cooling water pump head
11-50
O-rings on cooling water reservoir connectors 11-51
CUSA EXcel-8 System Service Manu

=
Schematics Supplement
Schematic 1.
Schematic 2.
Schematic 3.
Schematic 4.
Schematic 5.
Schematic 6.
Schematic 7.
Schematic 8.
Schematic 9.
Schematic 10.
Schematic 11.
Schematic 12.
Schematic 13.
Schematic 14.
Schematic 15.
Schematic 16.
Schematic 17.
Schematic 18.
Schematic 19.
Schematic 20.
Schematic 21.
Schematic 22.
Schematic 23.
Schematic 24.
Schematic 25.
Schematic 26.
Schematic 27.
Schematic 28.
Schematic 29.
Schematic 30.
The console rear and left side 9-1
Console covers and panels $-2
Console interior, rear and left side S-3
Console miscellaneous subsystems S-4
Subsystems relating to suction and irrigation 5-5
Arm and control panel assembly S-6
Interconnect diagram, sheet 1 of 2 S-7
interconnect diagram, sheet 2 of 2 5-0
Display board layout, sheet 1 of 2 S-9
Display board layout, sheet 2 of 2 S-10
Display board schematic, sheet 2 of 6 (sheet 1 blank, thus not
shown) S-11
Display board schematic, sheet 3 of 6 S-12
Display board schematic, sheet 4 of 6 5-13
Display board schematic, sheet 5 of 6 5-14
Display board schematic, sheet 6 of 6 5-15
Machine control board layout, sheet 1 of 1 S-16
Machine control board schematic, sheet 1 0f6 S-17
Machine control board schematic, sheet 2 of 6 5-18
Machine control board schematic, sheet 3 of 6 S-19
Machine control board schematic, sheet 4 of 6 5-20
Machine control board schematic, sheet 5 of 6 S-21
Machine control board schematic, sheet 6 of 6 5-22
Ultrasonics board layout, sheet 1 of 2 5-23
Ultrasonics board layout, sheet 2 of 2 S-24
Ultrasonics board schematic, sheet 2 of 7 (sheet 1 blank, thus not
shown) 5-25
Ultrasonics board schematic, sheet 3 of 7 9-26
Ultrasonics board schematic, sheet 4 of 7 5-27
Ultrasonics board schematic, sheet 5 of 7 9-58
Ultrasonics board schematic, sheet 6 of 7 S-29
Ultrasonics board schematic, sheet 7 of 7 $-30
GUSA
EXcel-8
System
Service
Manual
XV

List of Tables
Table 3-1. Wire colors 3-9
Table 3-2. Fuse values 3-10
Table 5-1. Tip Specifications—23 kHz 5-13
Table 5-2. Tip Specifications—36 kHz 5-14
Table 6-1. On-off intervals for TISSUE Select 6-6
Table 6-2. Fragmentation performance vs. TISSUE Select settings 6-8
Table 7-1. Irrigation pump voltage steps 7-4
Table 7-2. Suction pump voltage steps 7-5
Table 7-3. Cooling pump voltage steps 7-6
Table 7-4. Handpiece amplitude control voltages 7-6
Table 9-1. Routine maintenance tasks 9-2
Table 9-2. Torque values for the torque wrench 9-7
Table 11-1. Cable connections on the ultrasonics PCB 11-8
Table 11-2. Ultrasonics PCB fan assembly connectors 11-10
Table 11-3. | Cable connections on the ultrasonics PCB 11-12
Table 11-4. Procedures to access control panel components 11-16
Table 11-5. Suction pump cable connections to the controller card 11-31
Table 11-6. The suction pump controller card cable to the ultrasonics PCB 11-36
Table 11-7. Suction pump cable connections 11-37
Table 11-8. Irrigation pump control card connections 11-45
Table
11-9. Fuse values 11-52
Table
14-1. Handpiece cooling replacement parts 14-2
Table 14-2. Irrigation replacement parts 14-2
Table 14-3. Miscellaneous replacement parts 14-3
Table 14-4. Power replacement parts 14-4
Table 14-5. Suction replacement parts 14-4
Table 14-6. Printed circuit board spares 14-4
Table 14-7. Ultrasonics board parts—resistors 14-5
Table 14-8. Ultrasonics board parts—-diodes 14-5
Table 14-9. Ultrasonics board parts 一 FETs 14-6
Table 14-10. Ultrasonics board parts—integrated circuits 14-6
Table 14-11. Ultrasonics board parts—connectors 14-7
Table 14-12. Ultrasonics board parts—miscellaneous 14-8
xvi CUSA EXcel-8 System Service Man

Service Personnel Safety
Safety Information
In this section:
* Safety information
e Warnings, Cautions, and Notices, organized by section.
The safe and effective servicing of ultrasonic surgical equipment depends
to a large degree on factors solely under the control of the service person.
There is no substitute for a properly trained and vigilant service staff. It is
important that you read, understand, and follow the procedures supplied
with this ultrasonic equipment.
Warnings,
Cautions,
and
Notices
CUSA
EXcel-8
System
Service
Manual
Before servicing the CUSA EXcel console or handpieces, it is important
that you read, understand, and follow the instructions and the warnings,
cautions, and notices supplied with it. It is also important that you read,
understand, and follow the instructions for any other equipment used to
install, test, adjust, or repair the CUSA EXcel system.

Warnings, Cautions, and Notices
General
SM 1 Så RR ai BE
Federal (USA) law restricts this device to sale by or on the order of a physician.
Notice
Operating the console outside the specified voltage ranges may cause damage
to the power supply.
Introduction
Read all warnings, cautions, notices and instructions provided with the
CUSA EXcel system before servicing it.
Read the instructions, warnings, cautions, and notices provided with the
CUSA EXcel handpieces before servicing them.
To avoid injury to surgical personnel, keep fingers away from the suction pinch
valve.
Unpacking and Installing the CUSA EXcel System
To prevent the ramp from falling and causing injury, be sure to hold the ramp in
the up position while cutting the corrugated tab that secures it to the carton.
Notice
To avoid product damage, be sure to insert fuses that are appropriate to the
power supply:
+ 220 to 240 V — T5A, Time Delay (default)
¢ 95 to 120 V ~T10A, Time Delay
Console Components
To avoid injury to surgical personnel, keep fingers away from the suction pinch
valve.
Technical Specifications
Explosion Hazard Do not use the CUSA EXcel system in the presence of
flammable anesthetics or any potentially explosive or flammable atmosphere.
CUSA EXcel-8 System Service Man

Warnings, Cautions, and Notices
To avoid injury to surgical personnel, keep fingers away from the suction pinch
valve while powering the unit on or off, activating vibration, or using fast flush.
Checkout Procedures
Do not allow the handpiece tip to contact anyone or anything during tip activation.
Contact may result in patient injury, user injury, or handpiece tip damage.
№
э/е
|8UU0SJ84
291A18S
Notice
To avoid product damage, NEVER hold the handpiece in your hand while using
the torque wrench to tighten or loosen the tip.
Maintaining the CUSA EXcel System
0 «“«ὕ“όὃἃ«ᾱἃὃἃἝἃἝὃἝἃᾱἝἃ“ςἝ«ἄἃἄναυυαυυ
Electric Shock Hazard Always unplug the CUSA system before cleaning.
Notice
Do not rub, press, or touch any panels with solvents; caustic, corrosive, or
abrasive cleaning or disinfectant compounds; or other materials that could
scratch the panels. Do not use a betadine-based solution; it will cause
discoloration.
Do not allow fluids to enter the chassis.
Do not clean the sterilizer case with abrasives. Product damage will result.
Product damage will result if you do not follow these notices when cleaning the
handpiece:
¢ Do not immerse the handpiece cable electrical connector in liquid.
+ Do not use ultrasonic or automated cleaners.
* Do not use chlorinated substances such as bleach solution.
* Do not clean the handpiece with abrasives such as Ajax, Comet, or steel wool.
I Product damage will result if you do not follow these notices when cleaning the
Tip Torquing Set.
* Do not use ultrasonic or automatic washers.
e Do not autoclave.
* Do not use chlorinated substances such as bleach solution.
E | * Do not clean with abrasives such as Ajax, Comet, or steel wool.
6
CUSAEXcel-8
System
Service
Manual

Warnings, Cautions, and Notices
Troubleshooting
Electric Shock Hazard Do not touch any exposed wiring or conductive surface
while the system is disassembled and energized. Never wear a grounding strap
when working on an energized system.
Electric Shock Hazard Take appropriate precautions (such as the use of isolated
tools and equipment; use of the “one hand rule,” etc.) when taking measurements
or troubleshooting the system.
Do not activate vibration or the CEM handswitching nosecone while using the tip
cleaner. Tip damage, user injury, electrical shock, or any combination of these
effects may occur.
Notice
Electrostatic Sensitive Devices This unit contains electrostatic sensitive
components. When repairing the system, work at a static control workstation.
Wear a grounding strap when handling electrostatic sensitive components.
Handle circuit boards by their nonconductive edges. Use an antistatic container
for transport of electrostatic sensitive components and circuit boards.
Replacement Procedures
Electric Shock Hazard Only trained biomedical engineers and technicians are
authorized to service the CUSA EXcel system.
Electric Shock Hazard Do not touch any exposed wiring or conductive surface
while the CUSA EXcel system is disassembled and energized. Never wear a
grounding strap when working on an energized CUSA system.
Electric Shock Hazard Take appropriate precautions (such as the use of isolated
tools and equipment; use of the “one hand rule,” etc.) when taking measurements
or troubleshooting the CUSA EXcel system.
High Current Hazard Do not touch the ultrasonics PCB heat sink while the
CUSA EXcel system is energized. The heat sink is isolated from ground, and can
deliver very high current, resulting in injury.
>
CUSA EXcel-8 System Service Manual