Guilin Woodpecker Medical Instrument MT2 User manual

Dental Electric
Motor Instruction

Content
Forward ---------------------------------------------------------------------------1
1 Introduction --------------------------------------------------------------------1
2 Basic technical parameters ---------------------------------------------------3
3 Product structure and composition -----------------------------------------5
4 Main unit interface ------------------------------------------------------------8
5 Function and operation ----------------------------------------------------- 10
6 Safety precautions ----------------------------------------------------------- 14
7 Cleaning, disinfection and sterilization----------------------------------- 14
8 Troubleshooting-------------------------------------------------------------- 20
9 Storage and transport-------------------------------------------------------- 21
10 After-sales service---------------------------------------------------------- 21
11 Environment protection --------------------------------------------------- 21
12 Symbol instruction--------------------------------------------------------- 22
13 EMC-Declaration of comformity ---------------------------------------- 23

1
Forward
Guilin Woodpecker Medical Instrument Co., Ltd is a manufacturer
specializing in the development and manufacture of dental
products. Woodpecker owns a sound quality control system and four
brands, Woodpecker, DTE, DBA and RTA. The main products
include Ultrasonic Scaler, Curing light, Apex locator, Ultrasurgery,
Endo Motor, and Dental Electric Motor, etc.
1 Introduction
The MT2 dental electric motor consists of main unit, motor, motor
tail line, power adapter and power cord. It is intended for use in
general dental applications such as: cutting a tooth for cavity
preparation, crown preparation, crown nishing, inlay, ling,
polishing, prophylaxis and endodontic treatment.
1.1 Precautions before operation
Dangers:
1. To avoid electric shock, please prevent the water from entering
the control circuit and do not touch the power cord with wet hands.
2. Keep the device away from explosives and ammable objects.
Do not use this dental electric motor for the patients who are
anesthetized with nitrous oxide.
Warnings:
1. Federal law restricts this device to sale by or on the order of a
dentist.
2. This dental electric motor may malfunction when it was used
in an environment where electromagnetic interference occurs. This
dental electric motor cannot be installed near the device that releases
the magnetic wave. When using an ultrasonic vibrating device or an
electrode knife in the vicinity, please switch o the dental electric
motor.
3. Special precautions need to be taken for EMC, and MT2 needs
to be installed and put into use according to the EMC environment.
4. Device with electromagnetic emission will aect the normal
operation of MT2. Please do not run both devices at the same time.
5. Do not use the device in operating rooms that contain a mixture
of potentially ammable gases.

2
6. To avoid possible injury or damage to the dental electric
motor, make sure that the motor handpiece (hereinafter referred to
as the “motor”) is completely stopped when replacing the contra-
angle handpiece.
7. A severe impact, such as drop from high position, can result in
damage to the dental electric motor.
8. Do not try to disassemble the control panel or motor.
9. Please clean the dental contra-angle handpiece (hereinafter
referred to as the “handpiece”) immediately after use.
10. Do not lubricate the motor. The lubricant will cause the motor
to overheat and damage the motor.
11. Do not use a solution with dissolving ability to clean the control
panel.
12. Please switch o the device after each operation.
1.2 Intended use/Indications for Use
The MT2 dental electric motor consists of main unit, motor, motor
tail, power adapter and power cord. It is intended for use in general
dental applications such as: cutting a tooth for cavity preparation,
crown preparation, crown nishing, inlay, ling, polishing,
prophylaxis and endodontic treatment. The Dental Electric Motor
can be used with a ISO E-type straight, right-angle or contra-angle
handpiece attachment of equal, gear-reducing, or gear increasing
speed.
The contra-angle handpieces (model:WJ-15, WJ-15L) are driven by
a micro-motor to rotate at a specied speed, so as to drive the dental
bur. It is applicable to drilling and grinding in dental surgery.
1.3 Model
MT2
1.4 Contraindications
1. Patients with hemophilia.
2. The patients or doctors with heart pacemaker.
3. Patients with allergic constitution and history of drug allergy.
1.5 Cautions
1. Patients with oral and maxillofacial infections, unhealed oral
mucosal diseases, periapical periodontitis, gum disease, periodontal
disease, oral tumors, etc. should be cautious to use this device.

3
2. Patients with heart disease and children should be cautious to use
this device.
3. Patients with mental disturbance should be cautious to use this
device.
4. Patients with severe systemic or systemic diseases such as heart,
liver, kidney, hematopoietic system, digestive system and endocrine
system should be cautious to use this device.
5. Pregnant women or lactating women, women of childbearing
age who planning to have a baby recently should be cautious to use
this device
1.6 Safety requirements
Guilin Woodpecker Medical Instrument Co., Ltd. will not be
liable for any direct or indirect damages and losses under the
following conditions:
• The device is used for any purpose other than the mentioned scope
of application.
• The operator did not use the device in accordance with the
procedures and requirements stipulated in the Instruction Manual.
• The wiring system of the room where the device is used does not
meet the appropriate standards and requirements.
• Assembling, operating, and repairing the device without the
authorization of the Woodpecker.
• The environmental conditions in which the device is located
or stored do not meet the requirements mentioned in the section on
technical requirements.
2 Basic technical parameters
2.1 Specication of main unit
Main unit
Software version MT2-V1.0.0
Size 165.5mm×129.7mm×77.6mm
Weight Main unit: 620.7g,
Motor Handpiece: 70.6g
Power Adaptor
Model UES90-300300SPA1
Power input 100-240V~ 50/60Hz 1.5A
Power output DC 30V 3.0A

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Motor
Model E-MT
Rotation speed 2,000-40,000rpm
Torque range 1N•cm~5N•cm
Voltage input DC24V
Size Φ22×76.7mm
Operation mode Continuous
Motor LED light Watts 3 W
Color White
Motor tail cord Length 1800 mm
Water source Water pressure 0.5 bar ~ 2 bar
Water ow 0-100 mL/min
Air source
Air pressure 1.5 bar ~ 6 bar
Spray air ow 1.5-5.0 L/min
Motor cooling air
ow 0-20 L/min
Drive air ow 0-20 L/min
Coolant mechanism Coolant air
Usage environment
Temperature:5-40°C,
Humidity:30%-75%
Atmospheric pressure: 70kPa
~ 106kPa
Storage environment
Temperature: -20 - +55 °C;
Humidity: 10%- 93%,
Atmospheric pressure: 70-
106kPa
2.2 Specication of Contra-Angle Handpiece
Model WJ-15 WJ-15L
Optical ber Without light With light
Fiberoptics NA input:20000-65000 lx,
output:14000-40000 lx
Coupling between
motor and
Contra-angle handpiece
Type 2(ISO 3964-
2016)
Type 3(ISO 3964-
2016)
Coupling dimension Middle(ISO 3964-2016)
Speed 10000~200000 rpm

5
Chuck Mechanical type chuck
Gear ratio 1:5 speed-rising
Shanks for rotary
instruments Type3,φ1.6mm bur ( ISO 1797-1-2011)
Overall length of rotary
instrument 19mm
Maximum overall
length of
rotary instrument
21mm
Maximum working
diameter
of the rotary
instruments
2mm
Rod A cylinder with rounded or chamfered ends
Minimum length of rod 12.5mm
Cooling water pressure 0.5-2 bar(1.5 bar is recommended)
Cooling air pressure 1.5-6 bar
Cooling air
consumption
under pressure of 2 bar
> 1.5 Nl/min
Bur extraction force ≥24N
2.3 Device safety classication
2.3.1 Type of protection against electric shock: Class II equipment
2.3.2 Degree of protection against electric shock: Type B applied
part
2.3.3 Degree of main unit protection against harmful ingress of
water: Ordinary equipment (IPX0). Not waterproof.
2.3.4 Classied by operation mode: Continuous operating device
2.3.5 Degree of safety application in the presence of a ammable
anesthetic mixture with air, oxygen, or nitrous oxide: Equipment
cannot be used in the presence of a ammable anesthetic mixture
with air, oxygen, or nitrous oxide.
3 Product structure and composition
3.1 Safety requirements during installation

6
1. Installation of the device must comply with appropriate standards
and associated electric safety requirements.
2. Never install the device in an explosive atmosphere and the
device must not be operated in an area with ammable gases
(anaesthetic mixtures, oxygen, etc.).
3. The installation site should prevent the device from being
impacted, and avoid the device from being splashed by water or
other liquids.
4. Do not install the device near or above the heat source. It must be
installed in a place where the surrounding air is suciently
circulated. There should be enough space around the device.
5. Do not place the device in direct sunlight or ultraviolet light.
6. This device can be moved, but please handle it with care.
7. Make sure the connection parts are dry before connecting the
wires to the unit. If necessary, blow it to dry with an air gun.
3.2 See the packing list for the machine conguration
The device consists of main unit, motor, motor tail, contra-angle
handpiece, power adapter.
Figure 1
3.3 Front View of the Main Unit

7
Figure 2
3.4 Rear view of the main unit
Figure 3
3.5 Schematic disgram of motor installation
Figure 4
3.5.1 Connect/Disconnect motor and motor tail
A. Connect: First align the motor and motor tail interface, then
insert the motor into the motor tail interface, and nally tighten the

8
nut
on the motor tail.
B. Disconnect: Unscrew the nut, and then remove the motor tail
from the motor;
3.5.2 Connect/Disconnect motor and contra-angle handpiece
A. Connect: Insert the Head connection sleeve into the contra-
angle handpiece, and then turn the contra-angle handpiece until you
heard a “click” sound, to ensure accurate position;
B. Disconnect: When removing the contra-angle handpiece, pull
out the contra-angle handpiece from the motor in parallel.
3.6 Installation steps
3.6.1 Open the package, check whether the components of the
device are complete according to the packing list, and place the
main unit on the stable platform of the dental unit.
3.6.2 Connect the four-hole handpiece tail of dental chair to the
four-hole handpiece interface of the device and tighten completely.
3.6.3 Connect the power adapter to the DC adapter connector, then
connect the power supply socket to the DC adapter with the power
cord.
4 Main unit interface
4.1 Main interface
Figure 5

9
4.2 Setting interface
Figure 6
4.3 Manual mode interface
Figure 7
4.4 Interface of calibration mode
Figure 8
Figure 9

10
Enter the setting interface, click the “calibration” touch button to
enter the air pressure calibration interface, click “Start”, and the
interface will pop up as shown in Figure 9. Fully press down the
foot pedal until 100% is displayed, then release the foot pedal to
nish the calibration.
4.5 Restore the factory setting
Figure 10
Enter the setting interface, and click the restore factory settings
touch button to enter the restore factory settings interface for
conrmation. In conforming interface, click “OK”, the interface
shown in Figure 10 will pop up. Select "OK" to restore the original
factory settings parameters or select "Cancel" to quit restoring
factory settings.
4.6 Language selecting interface
Figure 11
Enter the setting interface, click the language selection touch button
so that the interface shown in Figure 11 will pop up, and select the
desired language. When you click “OK”, the corresponding
language is selected. When you select “Cancel”, the original
language would be maintained.
5 Function and operation

11
5.1 Install the product correctly according to the product installation
steps, and the screen should be facing the operator.
5.2 Turn on the power switch on the main unit, the screen will display
and enter the main control interface (Figure 1).
5.3 The motor is controlled by the foot pedal of the dental chair.
5.4 Make sure that the foot pedal control calibration is performed before
using the device for the rst time.
5.5 Icon description
Icon Name Function
Mode
Select the preset xed
speed.
(P1/P2/P3)
Speed ratio
Select the speed of contra-
angle
(16:1/1:1/1:5)
Speed adjustment Increase speed
Speed adjustment Decrease speed
Store Store the set parameters
Forward/Reverse rotation Control the forward and
reverse rotation of motor
Speed Display the set operating
speed
Setting Enter the setting interface
Manual mode Enter manual mode
adjusting interface
Calibration Enter calibration interface

12
Restore factory setting Restore the system to
factory setting.
Language selection Enter language setting
interface
Exit Exit the submenu setting
mode
Start Start to activate the motor.
Stop Stop the motor
LED Turn on/o the motor
LED.
Speed adjustment
Adjust the speed formerly
set in the manual mode.
Touch the progress bark
to increase or decrease the
speed.
5.6 Basic function adjustment on main unit controlling interface
5.6.1 Speed ratio: Select the corresponding speed ratio by touching
the speed ratio key. The color of the key will change when it is
selected.

13
When using a contra-angle handpiece with a gear ratio of 16:1,
touch the 16:1 speed ratio button.
When using a contra-angle handpiece with a gear ratio of 1:1, touch
the 1:1 speed ratio button.
When using a contra-angle handpiece with a gear ratio of 1:5, touch
the 1:5 speed ratio button.
5.6.2 LED: Turn on/o the LED light on the motor by touching the
LED key.
5.6.3 Speed adjustment: Adjust the speed of the motor by touching
the Speed adjustment key.
5.6.4 Forward/reverse rotation: Switch to the forward rotation or
reverse rotation by touching the Forward/reverse rotation key.
5.6.5 Mode: Select the working speed of corresponding mode by
touching the Mode key.
5.6.6 Store: Store the set speed ratio, speed, mode, forward rotation/
reverse rotation, and LED by touching the Store key.
5.6.7 Setting: Enter setting interface by touching the Setting key.
5.7 Basic funtion adjustment in setting interface
5.7.1 In setting interface, touch key “8” Manual Mode key to enter
manual mode interface. Under the manual mode state, the rotation
of motor can be directly controlled without foot pedal. Touch Speed
Ratio key to select corresponding speed ratio. Touch Speed key to
adjust the speed. Touch Start key, Stop key, Forward/Reverse
Rotation key, or LED key to control the output of motor. Touch the
Exit key to exit the manual mode interface.
5.7.2 In setting interface, touch key “9” Calibration key, touch Start
key, and the interface shown in Figure 8,9 would pop up. Fully press
down the foot pedal until 100% is displayed, then release the foot
pedal to nish the calibration.
5.7.3 In setting interface, touch key “10” Restore Factory Setting
key, click “OK” to enter interface shown in Figure 10, and decide
whether to restore the factory setting by clicking “OK” or “Cancel”
key.
5.7.4 In setting interface, touch key “11” to enter interface shown in
Figure 7 for language selection.
5.7.5 In the setting interface, touch key “12” to exit sub-menu
setting mode.

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6 Safety precautions
Cautions:
6.1 For repairs and purchase of spare parts, please contact our
authorized supplier.
6.2 The accuracy of the speed monitoring depends on the high
precision performance of the handpiece installed on the micro
motor. If the handpiece of other manufacturers is used, the actual
speed value may not be displayed correctly. To ensure the correct
display of the actual speed, please use the matching handpiece.
6.3 Read this operating manual before use and fully understand the
functions of each part.
6.4 Check the operating status of the dental electric motor before
use to conrm that there is no abnormality.
6.5 Test the dental electric motor before use to ensure accurate
operation.
6.6 If the motor is malfunctioning permanently (excessive vibration,
much noise and heat generation, etc.), please switch o immediately
and return it to the authorized dealer.
6.7 Clean the control panel with a damp cloth and turn o the
power before cleaning.
7 Cleaning, disinfection and sterilization
7.1 Motor and Contra-angle handpiece
Steps Motor Contra-angle handpiece
Warnings:
1. Do not spray any cleaning solution or lubricant
to the motor.
2. Do not use an automatic washer-disinfector to
clean the motor.
3. Except for the motor, the other parts such as
main unit, power adapter and tail are not
allowed to be sterilized.
Warnings:
1. The contra-angle handpieces are
not suitable for ultrasonic cleaning.
2. The contra-angle handpiece
should not be immersed in strong
detergents or disinfectants (alkaline
pH>9 or acid pH <5).
Resistance
to sterilizing
procedure
The motor could be capable of being subjected to
250 cycles of sterilizing procedure.
The contra-angle handpiece could
be capable of being subjected to
250 cycles of sterilizing procedure.

15
Steps Motor Contra-angle handpiece
Preparation at
the Point of Use
Remove the motor from the motor tail, and wipe
the surface of the motor with a soft cloth soaked
in cold water(<40°C).
The post-operative process must
be carried out immediately, no
later than 30 minutes after the
completion of the operation. The
steps are as follows:
Disconnect the contra-angle
handpiece from Motor.
Remove gross soiling of the
instrument with cold water
(<40°C) immediately after use.
Don’t use hot water (>40°C)
as this can cause the xation of
residuals which may inuence the
result of the reprocessing
process.
Transportation
The motor and contra-angle handpiece should be safety stored and transported to the
point of reprocessing to avoid any damage
and environment pollution.
Preparation for
reprocessing
The products must be reprocessed in a disassembled state.
Disassemble the contra-angle handpiece, motor and motor tail separately according
to section 3.5.
Pre-cleaning
Tools: tray, syringe, hose, clean and dry soft
cloth.
①Use a syringe to draw 500ml of puried water
to ush the waterway and atomization airway.
Do not clean the cooling air circuit,
otherwise it will
damage the motor.
②Wipe the water stains on the interface with
clean cloth.
③Rinse the motor under running water for 2
min.
④Rinse the motor surface with 500ml purified
water.
Tools: tray, soft brush, clean and
dry soft cloth.
Perform manual pre-cleaning
until the handpiece is visually
clean. Rinse the chuck of bur
with running water for at least 10
seconds. Clean the surface with a
soft bristle brush.
Note: The water temperature
should not exceed 40℃ during
the washing stage, otherwise
the protein will solidify and be
dicult to remove.

16
Steps Motor Contra-angle handpiece
Cleaning
Notice: Never reprocess this device in an
ultrasonic
device. Otherwise, it will cause the motor failure
and damage to its materials.
Prevent liquid from owing into the motor during
the cleaning process.
Step1: Clean the inner cavity
①Use a syringe to draw 500ml of detergent
（RUHOF AW PLUS WITH APA)to rinse the
waterway and atomization airway.
②Wipe the water stains on the interface with
clean cloth.
Step2:Wipe the surface
①Soak a clean soft cloth with detergent (RUHOF
AW PLUS WITH APA) and then wipe the
surface of the motor thoroughly for 5 times.
Replace with a clean soft cloth after each wipe.
If there are still visible contaminants, wipe
repeatedly until there are no visible contaminants.
②Soak a clean soft cloth with
detergent and then wipe the surface of the motor
thoroughly for 5 min. If there are still visible
contaminants, wipe repeatedly until there are no
visible contaminants.
Step3: Scrub the surface
Scrub the motor thoroughly with an instrument
brush with detergent for 3 min.
Step4: Rinse
①Use a syringe to draw 500ml of puried water
to rinse the waterway and atomization airway.
②Wipe the water stains on the interface with
clean cloth.
Step5：Rinse the surface
①Rinse the motor surface with 500ml purified
water to remove the residual detergent.
Note: Do not rinse the interface directly to
prevent liquid from owing into the motor.
Notice: Never reprocess this
device in an ultrasonic
device.
Automatic cleaning
The washer-disinfector should
meet the requirements of the ISO
15883.
Place the contra-angle handpiece
in the
washer-disinfector carefully.
Ensure that contra-angle
handpieces can not move freely in
the washer-disinfector.
The contra-angle handpice are
not permitted to contact with each
other.
Start the program:
• 4min pre-washing with cold
water(<40℃);
• Emptying
• 5 min washing with a mild
alkaline cleaner at 55℃;
• Emptying
• 3 min neutralizing with warm
water(>40℃);
• Emptying
• 5 min intermediate rinsing with
warm water(>40℃);
• Emptying
• Drying the device at 80℃ for
15min
The automated cleaning processes
have been validated by using 0.5%
neodisher MediClean dorte(Dr.
Weigert) Acc. To EN ISO 17664
Note: No manual reprocessing
methods are require for these
devices. If a manual reprocessing
method has to be used, please
validate it prior to use.
The above automated cleaning
and disinfection procedures was
validated.

17
Steps Motor Contra-angle handpiece
Drying
Drying should be conducted after cleaning. Wipe
o the residual water on the motor surface with
dry absorbent soft cloth.
Drying of outside of instrument
through drying cycle of
washer-disinfector. If necessary,
additional manual drying can be
performed through lint free towel.
Insufflate cavities of instruments
by using sterile compressed air.
If your washer-disinfector does not
have an automatic drying function,
please dry the device after cleaning
and disinfection. The drying
method as below:
1) Spread a clean white paper
(white cloth) on the at table, place
the contra-angle handpiece on the
white paper (white cloth), and then
dry the contra-angle with filtered
dry compressed air (maximum
pressure 3 bar). When no liquid is
sprayed on the white paper (white
cloth), it indicates that the contra-
angle handpiece is completely dry.
2) The device can also be dried
directly in a medical drying cabinet
(or oven).The recommended
drying temperature is 80℃ and
the time should be 15 minutes.
Note:
1).Dry the contra-angle handpiece
repeatedly if necessary (refer to
section "Drying").
2).The air used for drying must be
ltered by HEPA.
3) The device should be dried in a
clean area.
5)The drying temperature
should not exceed 137 °C

18
Steps Motor Contra-angle handpiece
Maintenance
1. Visual inspection: Before packaging and
sterilization, make sure that the motor has
been maintained according to manufacturer's
instruction. Visual inspection for cleanliness of
the motor.
Check the motor:
1. If there is still visible stain on the motor after
cleaning, the entire cleaning process must be
repeated.
If the motor is obviously damaged, smashed,
detached, corroded or bent, it must be discarded
and not allowed to continue to be used.
1. Functional Test and Visual
inspection
Visually inspect the cleanliness
of the Handpiece, and then
reassemble it. Perform Functional
test according to instructions of
use. If there is still visible stain on
the device after cleaning, the entire
cleaning process must be repeated.
Before packaging and sterilization,
make sure that the contra-angle
handpiece has been maintained
acc. to manufacturer's instruction.
If the device is obviously damaged,
smashed, detached, corroded or
bent, it must be discarded and not
allowed to continue to be used.
If the accessories are found to be
damaged, please replace it before
use. And the new accessories for
replacement must be cleaned,
disinfected and dried.
Use of an 510(k) cleared lubricant
(i.e. NSK PANA-SPRAY) to
lubricate the handpiece and dried
it prior to sterilization. Aim the
nozzle of lubricant bottle to the
air hole at the end of the contra-
angle handpiece to inject oil for 1-2
seconds.