KRUUSE SP2 User manual

KRUUSE-SP2 Scaler /Polisher Combo Unit
Instruction Manual
Jørgen Kruuse A/S DK
Havretoften 4
DK-5550 Langeskov
COPYRIGHT© 2014 Jørgen Kruuse A/S DK

- 1 -
Jørgen Kruuse A/S DK owns all rights to this publication. This publication shall be used solely as a
reference for operation, maintenance, and repair on Jørgen Kruuse equipment. No part of this
document may be reproduced or distributed in any form for any other purpose.
In the event of inadvertent or deliberate publication, Jørgen Kruuse intends to enforce its rights to
this manual under the copyright law. Reproduction of the materials presented in this manual without
the express written permission of Jørgen Kruuse A/S DK is prohibited.
The contents of this manual are subject to change without prior notice.
PROPERTY OF Jørgen Kruuse A/S DK
ALL RIGHTS RESERVED
Document No. RD-02-14-04 Rev.1.0 (04/14)
Printed in Taiwan, R.O.C.

- 2 -
Operator Safety
Please read this manual before operating unit.
The KRUUSE-SP2 Scaler/Polisher Combo Unit should be operated, maintained and repaired by
qualified and properly trained personnel.
NOTE, CAUTION, AND WARNING STATEMENTS
NOTE：Provides tips and advice
CAUTION：Provides correct operating or maintenance procedures
WARNING：Alerts users of danger that may cause severe injury when proper procedures
are not followed
SYMBOLS
Complies with MDD 93/42/EEC
BF equipment
Grounding terminal
Attention! Please read instructions

- 3 -
Warnings
Important!
The KRUUSE-SP2 should be operated solely by qualified personnel (trained
doctors, dentist, and hygienists, etc.).
Patients with pacemakers should not be treated with the KRUUSE-SP2
Do not immerse the KRUUSE-SP2 in water!
If the patient or operator is pregnant, consult a physician prior to performing
dental scaling for safety purposes.
The KRUUSE-SP2 requires a shieldedAC power cord.
Plug the power cord into a well-grounded outlet.
Attention to users with cardiac pacemakers!
Patients with pacemakers should avoid treatment with the KRUUSE-SP2. Studies have
shown that electronic appliances including razors, hair dryers, microwave ovens, TV
receptors, and other medical equipment, such as the KRUUSE-SP2, may interfere with the
performance of pacemakers.
For more information on this subject, please refer to the following articles:
"Advances in Cardiac Pacemaker", The New York Academy of Sciences, Vol. 167,
Article 2, pp. 515-1075
"Electromagnetic Radiation Interference with Cardiac Pacemaker", U. S. Department of
Health, Education and Welfare
"The Individual with a Pacemaker in the Dental Environment", Journal of the American
Dental Association, Vol. 91, No. 6, pp. 1224-1229

- 4 -
Please Read Before Operating:
Make sure the device is connected to a grounded outlet. Failure to
meet this requirement may severely damage the user and device.
Place the device on a flat and stable surface. Placing the device
on a tilted or unstable surface may degrade performance or damage
the device.
Do not modify the device. Modifications to the device will violate
safety codes and invalidate the warranty while endangering the
patient and operator.
Do not place heavy objects on top of the power cord and keep the
power cord away from intense heat.
Unplug the device and call Bonart for service and instructions if
you observe any abnormalities while operating the device.

- 5 -
Preface
About the KRUUSE-SP2 Scaler/Polisher Combo Unit
The KRUUSE-SP2 is CE 0434 certified in compliance with the applicable requirements of the
Council Directive 93/42/EEC. The reviewing council also classifies the KRUUSE-SP2 in
accordance with EN60601-1 and EN60601-1-2 safety requirements.
How it works
The KRUUSE-SP2 Piezoelectric Ultrasonic Scaler generates ultrasonic waves in the hand piece
to vibrate the tip, which allows the KRUUSE-SP2 to remove calculus and tartar easily. These
ultrasonic waves are created by 4 ceramic piezoelectric plates subjected to high frequency
alternating currents.
The piezoelectric transducer operates at a frequency of 29khz with minimal noise and heat, and
efficiently reduces the amount of cooling water required during treatment. This
electric-mechanical feature provides greater efficiency than traditional magnetostrictive systems.
Features:
Scaler and polisher in one system
Automatic phase lock and power control
Automatic feedback control
Micro-motor speed control of 2,000 to 30,000 RPMS
CAUTION：Since the scaling tip is made of stainless steel, avoid direct contact with teeth.
Direct contact will cause damage to teeth enamel. For optimum performance, we suggest
practicing on a model or aluminum plates to become more familiar with the scaling tips before
performing on patients.

- 6 -
Table of Contents
Copyrights ……………………………...
1
Operator Safety ..........……………………….
2
Warnings ......………………………….
3
Preface ……..……………………….
5
Contents ..…………………………….
6
Section I. Indications for Use ..…………………………….
7
Section II. Contraindications and Warnings ……………………..
7
Section III. Precautions .……………………………..
7
Section IV. Infection Control ……………………………...
9
Section V. Installation …..………………………………………….
12
Section VI. General Description and Information of Parts…………….
17
Section VII. Techniques ……………………………….
19
Section VIII. System Maintenance …………………………..…
21
Section IX. Troubleshooting ……………………………….
22
Section X. Specifications ……………………………….
23
Section XI. Disposal ..……………………………..
23

- 7 -
SECTION I: INDICATIONS FOR USE
Ultrasonic scaling procedures:
Removal of calculus and plaque during dental prophylaxis.
General supra and sub-gingival scaling applications.
Periodontal debridement for all types of periodontal diseases.
Endodontic procedures.
Polishing procedures:
For removal of calculus and plaque during dental polishing.
All general supra and subgingival polishing applications.
Periodontal debridement for all types of periodontal diseases.
Endodontic procedures with optional bur tools.
SECTION II: CONTRAINDICATIONS AND WARNINGS
Do not use the KRUUSE-SP2 for amalgam restorative dental procedures.
Do not use the KRUUSE-SP2 if the patient or operator is wearing a pacemaker.
Do not immerse the KRUUSE-SP2 in water or liquid. If the KRUUSE-SP2 has water
damage, return the machine to Bonart for servicing.
Do not modify the KRUUSE-SP2. Modifications will invalidate the warranty on the
machine, violate safety codes, and endanger the patient and operator.
SECTION III: PRECAUTIONS
Precautions for the KRUUSE-SP2 and all Ultrasonic Scaler Systems
Ensure that an adequate amount of water flows to the piezo tip during use in order to cool
the hand piece and tip.
Take precaution to prevent transmission of contagious diseases as all ultrasonic scalers
produce aerosols.
Use tips manufactured by Bonart for optimal performance.
Keep the KRUUSE-SP2 away from heat sources to prevent overheating and damaging of
electrical components.
Ensure that the water valve is closed when the KRUUSE-SP2 is not in use.
Avoid treating patients with pacemakers due to the magnetic field produced by the
KRUUSE-SP2.

- 8 -
Precautions for Ultrasonic Prophylaxis Procedures
Discard and replace piezo tips as needed. Scaling tips wear out with use and should be
replaced after 2mm of wear (approximately 3 to 4 months) to maintain optimal performance
Discard and replace piezo tips that are bent, damaged, or reshaped. Do not reuse deformed tips
BONART piezo tips are made of stainless steel. Avoid direct contact with teeth to prevent
damage to the enamel. We strongly advise practicing on models and aluminum plates prior to
operating on a live subject with the KRUUSE-SP2.
Avoid direct contact of piezo tips with the subject’s lips, cheeks, and tongue.
Wipe accretions from the tooth using the long axis of the scaler tip. DO NOT gouge the tooth
Precautions for hand-piece
Do Not Twist and Pull Cable
Do Not Bend
Do Not Twist
Do Not Bundle
Pull To Disconnect

- 9 -
Section IV: Infection Control
General Infection Control:
Always use standard personal protective equipment such as facemasks, eyewear, face shields,
gloves, and protective gowns.
In addition to using protective equipment, ensure that your water supply system conforms to
applicable Centers for Disease Control and Prevention (CDC) and American Dental Association
(ADA) standards, and that all required flushing, chemical flushing, and general infection control
procedures are followed.
To further protect against infection, using distilled or purified water is recommended.
Cleaning and Sterilization:
All sterilization procedures must be followed in accordance to the EN ISO17664 standards.
In order to avoid bacterial or viral infections, always clean and sterilize the following components
after each treatment:
1. Hand piece
2. Tips
3. Metal Wrench
4. Micro-motor
5. Straight hand piece (Straight nose cone)(optional accessory)
6. Prophy head (unless disposable)(optional accessory)
The hand piece, tips, wrench, straight handpiece and prophy head can be autoclaved and can
withstand a maximum temperature of 135℃or (275℉) for a maximum of 3 minutes. After
completing the sterilization cycle, air-dry for about 20-30 minutes before reusing.
WARNING: Do not use any other method of sterilization (dry heat, radiation, ethylene oxide,
gas, low-temperature plasma, etc.)
NOTE：The SterilizationAssurance Level (SAL) of steam autoclave should be 10-6 (According
to ISO 13683:Sterilization of health Care products)
NOTE: Prior to cleaning and sterilizing your KRUUSE-SP2 unit, always remember to turn
off the device by using the power switch and to disconnect the power plug from the outlet.

- 10 -
Cleaning the KRUUSE-SP2 unit
Remove the hand piece from the cable, and the tip from the hand piece.
Clean and disinfect the surface of the outer casing, cords and connectors with a cloth and a
gentle disinfectant.
Cleaning and sterilizing the hand piece
Remove the hand piece from the hand piece cable and the tip from the hand piece.
Take special care not to break the threading pin of the hand piece. The threading pin is
where the tip attaches to the hand piece.
Disinfect the hand piece with a cloth and mild disinfectant containing a neutral pH.
Dry the electric contacts by blowing air onto them with the syringe.
Seal the hand piece in a sterilization pouch (without any tips). If you are short on
sterilization pouches, you may use the surgical tray in place of the sterilization pouch.
Autoclave the hand piece.
WARNING: Do not immerse the hand piece cable in sterilizing fluid. The KRUUSE-SP2
can be severely damaged if sterilization fluid gets inside the unit.
Cleaning Piezo Tip or Wrench
Clean the tip or wrench preferably in an ultrasonic tank and rinse in distilled water.
Dry the tip or wrench.
Disinfect the tip with a cloth and mild disinfectant containing a neutral pH.
Seal the tip or wrench inside a sterilization pouch. If you are autoclaving more than 1 tip,
place each tip or wrench in an individual bag. You may also use the tip holder that comes
with the ART-SP6 in place of the sterilization pouch.
Autoclave the tip or wrench .
WARNING：Before starting the sterilization cycle, make sure that the inside of the tip is
completely dry by blowing air through the internal hole with the syringe. This will prevent
stains and patches from appearing on the surface of the tip.

- 11 -
Cleaning the micro-motor (optional accessory)
Remove all attachments to the micro-motor prior to cleaning. The outer surface of the
micro-motor should be cleaned with an antiseptic solution. Never oil the micro-motor.
Ensure that no moisture gets inside the micro-motor.
WARNING: Do not dip the micro-motor and cord directly into sterilization fluids. The
chemicals will interfere with normal operations if it reaches the inside of the system.
WARNING: Do not leave disinfectants on parts longer than recommended by the
manufacturer of the disinfectant to avoid damaging materials.
NOTE: The micro-motor should be cleaned after each use between patients.
Cleaning the straight hand piece (straight nose cone) attachment (optional accessory)
Clean the straight hand piece preferably in an ultrasonic tank and rinse in distilled water.
Dry the straight hand piece.
Disinfect the straight hand piece with a cloth and mild disinfectant containing a neutral pH.
Seal the straight hand piece inside a sterilization pouch. If you are autoclaving more than 1
tip, place each straight hand piece in an individual bag. You may also use the tip holder that
comes with the KRUUSE-SP2 in place of the sterilization pouch.
Autoclave the straight hand piece .
Cleaning the Prophy Head (unless disposable) (optional accessory)
The prophy head should be cleaned to remove hair and debris approximately after every 10 dental
polishing.
1. Remove prophy angle from handpiece and rubber cup.
2. Remove head gears by turning knurled knob clockwise ( threads are reversed) turn to your right.
3. Clean with fine brush and lubricate head gears with mineral oil, Vaseline or any non-toxic
lubricant.
4. Place head gears back and tighten by turning Left or counterclockwise.
5. Normal polishing speeds are around 3,000 to 3,000 RPM, exceeding this may damage your
prophy angle.

- 12 -
SECTION V: INSTALLATION
General Information
If the installation of your KRUUSE-SP2 system is performed by non-Bonart dealer personnel,
check to see that the requirements below are followed.
Water Line Requirements
Incoming water supply line pressure to the Scaler must be 25 psi (172 kPa minimum) to 60
psi (414Kpa maximum). If your dental water supply line pressure is above 60 psi, install a
water regulator on the water supply line to your KRUUSE-SP2 unit.
After installing the water supply system, flush the water thoroughly prior to connecting to
the scaler.
Manually shut off the water valve of your dental water supply system prior to leaving the
office unoccupied and unattended.
Electrical Requirements
Refer to Section X: Specifications

- 13 -
Unpacking the Unit
Carefully unpack your KRUUSE-SP2 unit and verify that all components and accessories are
included:
(Figure 1) All components and accessories
Item
Quantity
Item
Quantity
(1) Main Unit
1
(2) Foot Control / Foot Switch
1
(3) AC Power Cord Set.
1
(4) PU Water Tubing
1
(5) User Manual & Literature
Packet
1
(6) Piezo Hand piece.
1
(7) Metal Torque-Limited
Wrench
1
(8)
ART-BS1 Universal Pointed Tip
ART-BS2 Chisel Head Flat Tip
ART-BS3 Round Flat Tip
1
1
1
(9) Micro-motor
Optional
(10) Micro-motor seat
Optional
(11) Straight Hand Piece
Optional
NOTE: Other piezo tips are available and can be purchased separately through dealers.
Included items are subject to change depending on location.
NOTE：While unpacking, check your KRUUSE-SP2 unit for any damages. If any
damages are found, please contact your dealer immediately. Enter the unit serial
number on your warranty card and mail it within 14 days from the date of purchase.

- 14 -
Power Cord / Power Connection
Always make sure that the power switch is set to the OFF position before performing the
following tasks:
oPlugging and unplugging the AC cord into the back of the unit.
oPlugging and unplugging the 3-prong plug into a grounded electrical outlet.
Safety Instructions
A. Grounding:
Verify that the main unit is connected to a grounded outlet prior to connecting other parts to
the main unit.
B. Main voltage range and fuse:
Check the voltage of the KRUUSE-SP2 for compatibility with your local voltage before
plugging the power cord into the outlet.
Foot Control Cable Assembly Connection
Align the pins of the foot control plug with the receptacle on the back of the device and push firmly
until seated.
Water Supply Line Connection
Push the blue water tube (hose) over the stainless steel receptacle on the back of the unit. Then
tighten the screw over it.
Connect the quick connector to the water supply line. The KRUUSE-SP2 standard package comes
with a male quick connector. If a female quick connector is necessary, please contact a Bonart
authorized dealer to purchase it.
Inspect all connections for leaks.
To remove the water line from the KRUUSE-SP2 scaler, turn off the water supply or disconnect the
water supply line from the water tube. Then loosen the screw on the water tube from the
receptacle of the unit and gently pull the water tube off.
Hand piece Cable Assembly Connection
The hand piece is the housing for the piezo tips. It is the part that you hold during operation. The
hand piece must be attached to the hand piece cable prior to using. To attach, connect the free end

- 15 -
of the cable to the matching receptacle on the back end of the hand piece. Do not twist or turn.
To detach, pull the cable from the hand piece in a straight motion. Do not twist, turn, or yank the
hand piece from the cable.
Polishing Hand Piece Assembly and Start Up. (Optional accessories)
(Figure 2)
To assemble the polishing hand piece, connect the Prophy Angle, Straight Hand Piece, and
Micro-motor by following the steps below:
1. Connect the straight hand piece and the micro-motor by pushing the straight hand piece over the
rod of the micro-motor. It should snap into place.
(Figure 3)
2. Attach the prophy angle to the straight hand piece by following the steps below:
A) Unlock the prophy angle from the straight hand piece by turning the locking ring clockwise.
This should open the lock. Note: When you first unpack the straight hand piece, there may
be a metal rod at the top that serves as a placeholder. Remove the rod after you open the
lock.
(Figure 4)

- 16 -
B) Match the groove at the base of the prophy head with the top of the straight hand piece and
connect them together.
(Figure 5)
C) Close the lock by turning the locking ring counter-clockwise. The prophy head should now
be locked onto the straight hand piece and should not fall off during operation.
(Figure 6)
D) If you wish to remove the prophy head, follow step Ato release the lock on the prophy head.
WARNING：The prophy head should be cleaning and lubricated on a regular basis.
To polish, follow the steps below:
1. Place a rubber cup on the prophy head and put paste in the cup to begin polishing.
2. Press the Micro-motor (mode) button to switch from scaling to polishing mode.
3. Adjust the Oscillating dial to a low speed, 2,000 rpm.
4. Press on the foot switch to engage the polishing hand piece and begin polishing.
5. Add paste as needed.
Assembling the Scaler Unit
1 Ensure that the power switch is set to off. If plugged in, the power indicator light should not be
lit.
2. Plug the power cord of the main unit into a grounded AC power outlet.
3. Insert the tip into the hand piece and lock it into place by using the enclosed wrench. Be
careful not to overturn the tip as it may cause the tip and hand piece to break.
4. Ensure that the water tube connection to the water supply source and main unit is secure.

- 17 -
Section VI: General Description and Information of Parts
1. Main unit
5. Water control knob
9. Water hose input
2. Hand piece
6. Power control knob
10. Power cord socket
3. Power button
7. Micro-motor socket
11. Forward/Reverse switch
4. Micro-motor (Mode) button
8. Foot switch socket
Figure 7. KRUUSE-SP2 diagram
1. Main Unit
The main unit generates power and produces a signal that is passed to the hand piece. The
hand piece is then powered up and vibrates the installed tip.
2. Hand piece
The hand piece is the housing for the piezo tip. It consists of four piezoelectric plates that
vibrate. The plates are driven by the electrical signal from the Main unit. The
KRUUSE-SP2 unit is compatible with Bonart BS-type piezo tips and other brands of piezo tips
with a comparable thread. Do not use Bonart BE-type piezo tips with the KRUUSE-SP2.
3. Power button (ON/OFF)
The power button is used to turn the KRUUSE-SP2 main unit on and off. When the power is
on, the LED indicator should be lit. When turned off, the LED power indicator should not be
lit.
Do not press the foot switch while turning on the KRUUSE-SP2.
4. Micro-motor (Mode) button
The micro-motor (Mode) button is used to switch between polishing and scaling mode.
When pushed, the LED indicator should be lit, indicating that the system is operating in
polishing mode. Under polishing mode, the micro-motor is engaged. To return to scaling
mode, push the button again.

- 18 -
5. Water control knob
The water control knob allows you to control the amount of water that flows through the hand
piece. If turned clockwise, the amount of water will decrease. If turned counter-clockwise,
the amount of water will increase. Please note that water is necessary to cool the tip and
prevent overheating so it is necessary to ensure that an adequate amount of water flows
through the hand piece while operating the device. The larger the water stream, the lower the
temperature, and vice versa.
WARNING：Do not turn the water knob counter-clockwise more than three full turns.
Doing so will damage the internal water line needle.
WARNING：If needed, gently adjust the water control knob to prevent any serious
damages to the water valve.
6. Power control knob
The Power Control Knob allows you to control the power intensity. When turned clockwise,
the power intensity increases. When turned counter-clockwise, the power intensity decreases.
7. Micro-Motor Socket
The micro-motor socket is where you connect the micro-motor to the main unit. It is located
on the back of the main unit at the bottom left.
8. Footswitch Socket
The foot switch socket is where you connect the foot switch to the main unit. It is located
next to the water hose input on the back of the main unit.
9. Water hose input connector
The water hose input connector is the contact point for the water tube and the main water
supply line. Use either a male or female quick connect to connect the water tube to the water
supply. The KRUUSE-SP2 comes with a male quick connect attached to the water tube.
10. Power cord socket
The power cord socket is where you connect the power cord to the main unit.
11. Forward / Reverse switch
The Forward/Reverse switch allows you to control the direction of the micro-motor. It is
located on the back of the main unit.

- 19 -
Section VII: Techniques
Performing Ultrasonic Scaling Procedures
1. Use purified or distilled water to prevent infection when patients experience tissue laceration
during treatment
2. Keep the power cord tidy to avoid tripping and other accidents.
3. Position the footswitch in an easily accessible spot for the user. Keep the footswitch cord
tidy to avoid tripping and other accidents.
4. Lock the tip in the hand piece securely using the enclosed wrench.
CAUTION: DO NOT FORCE OR OVERTURN THE TIPINTO PLACE! Doing so will
damage the tip, hand piece, and wrench.
NOTE: The scaler will not operate if the tip is either removed from the hand piece or
improperly installed.
5. Hold the hand piece over a sink or drain with a tip installed. Verify that water is reaching the
tip.
6. Check your Bonart piezo tip for wear and replace as needed.
7. Use the foot control to regulate water flow to the hand piece. Hold down the foot control to
allow water to flow through. Release the foot control to stop.
8. Adjust the water flow to the desired level using the water-adjustment knob. Increase the
water flow by turning the water control knob clockwise. Decrease the water flow by turning
the water control knob counter-clockwise.
NOTE: Increased water flow results in a cooler hand piece temperature and vice versa.
CAUTION: During operation, a continuous flow of water is required to keep the hand
piece cool.