A-dec|W&H 400 HG-43A, 400 WG-99 LT, 400 WG-57 LT, 400 WG-56 LT, 400 WG-66 LT, 400 WG-99 A, 400 WG-56 A, 400 WG-66 A Electric Handpiece Instructions for use
400 series Highspeed and Lowspeed Electric Handpieces are designed for use in dental practices. This manual provides instructions for use, assembly, cleaning, maintenance, and sterilization. It covers both high-speed and low-speed handpieces.
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Instructions for use
400 series
Highspeed and Lowspeed Electric
Handpieces
valid since serial no. 01001
Contents
A-dec | W&H symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 – 4
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 – 7
2. Safety notes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 – 9
3. Product description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 – 11
4. Operation .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 – 17
Assembly/Removal, To change dental bur, Test
5. Cleaning and maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18 – 29
General, Pre-Cleaning, Manual cleaning, Manual disinfection,
Automated cleaning and disinfection, Lubrication, Sterilization
6. A-dec |W&H accessories and spare parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
7. Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31 – 33
8. Recycling and disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
A-dec | W&H contacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
2
A-dec | W&H symbols instructions for use
CAUTION!
(to prevent damage occurring)
WARNING!
(Risk of injury)
UL Component Recognition Mark indicates compliance with
Canadian and U.S. requirement
General explanations, without risk to persons or objects
Do not dispose of with domestic waste
3
A-dec | W&H symbols handpiece
CE 0297 from the manufacturer
Thermal washer disinfectable
Sterilizable up to the stated temperature
REF
SN
Catalog number
Serial number
Date of manufacture
4
1. Introduction
Creating customer success is a key foundation to the A-dec |W&H quality policy. In support of that effort, this
A-dec |W&H product has been developed, manufactured, and subjected to final inspection according to legal regulations, quality norms, and industry standards.
For your safety and the safety of your patients
Prior to initial use please read the instructions for use completely; they explain how to use your A-dec |W&H product and ensure proper, efficient and safe operation.
Intended use
The dental handpiece is intended for the following applications: Removal of decayed materials, cavities, and crown cement, removal of fillings, finishing, and polishing of tooth and restoration surfaces.
Always follow the manufacturer’s recommendations for the handpiece.
Misuse may damage the handpiece, create risks, and pose hazards for patients, users, and others.
5
Qualifications of the user
We have based our development and design of the handpiece on the dentists, dental hygienists, dental employees (prophylaxis), and dental assistants target group.
Production according to EU Directive
The handpiece is a medical product according to the EU Directive 93/42/EEC.
Device labeling statement
U.S. Federal law restricts this device to sale by or on the order of a dentist, physician, or any other practitioner licensed by the law of the state in which he or she practices to use or order the use of this device.
Responsibility of the manufacturer
The manufacturer can only accept responsibility for the safety, reliability, and performance of the handpiece when it is used in compliance with the following directions:
> The handpiece must be used in accordance with these instructions for use.
> The handpiece has no components that can be repaired by the user. Assembly, modifications or repairs must only be undertaken by authorized A-dec | W&H repair locations.
6
Skilled application
The handpiece is intended for use only by trained dental or medical practitioners for the purposes listed under the Indications for Use, in accordance with this document, the applicable health and safety regulations, and the valid accident prevention regulations.
The handpiece should be prepared for use and maintained by staff who are trained in procedures for infection control, personal safety, and patient safety. Improper use, (e.g., through poor hygiene and maintenance), noncompliance with our instructions, or the use of accessories, and spare parts that are not approved by A-dec |W&H invalidates all claims under warranty and any other claims.
Service
In the event of malfunctions contact your local retail A-dec dealer or A-dec customer service
Service and maintenance work must only be carried out by authorized A-dec |W&H repair locations.
7
2. Safety notes
> Always ensure the correct operating conditions and cooling function.
> Always ensure that sufficient and adequate cooling is delivered and ensure adequate suction.
In case of coolant supply failure, the handpiece must be stopped immediately.
> Use only non-contaminated, filtered, oil-free, and dry compressed air to operate the handpiece.
> Check the handpiece for damage and loose parts each time before (e.g., push-button chuck).
> Do not operate the handpiece if it is damaged.
> Perform a test run each time before using.
> Avoid contact between the instrument head and soft tissue
(danger of burning due to the push-button chuck heating up).
> Run the rinse function for the dental unit once per day.
8
> The operation of the handpiece with light is permitted only on dental units that correspond to the standards IEC 60601-1 (EN 60601-1) and IEC 60601-1-2 (EN 60601-1-2).
The power supply unit for the dental unit must satisfy the following requirements to be guaranteed by the system assembler:
> The compliance with the leakage currents of the application section must be guaranteed by the system assembler.
> The secondary voltage must be non-earthed.
> The secondary circuits must be protected against short-circuiting and overloading.
Cleaning and maintenance prior to initial use
Ensure that the handpiece is in clean condition and sealed in polyethylene (PE) film when the product is first delivered.
> Lubricate the handpiece prior to initial use.
> Sterilize handpiece and cleaning wire as well as the spacer and threaded pin of the handpiece prior to initial use.
> See lubrication instructions on page 24
> See sterilization instructions on page 28
9
3. Product description: HG-43A
Handpiece sleeve with rotary chuck
w
Spray ports
e
Grip
r
Threaded pin
t
Spacer
y
Cleaning wire
10
Product description: WG-99 LT, WG-57 LT, WG-56 LT, WG-66 LT, WG-99 A, WG-56 A, WG-66 A
WG-56 LT
WG-66 LT
WG-99 LT
WG-57 LT
Push-button chuck
w
Spray ports
e
Optic Outlet
(glass rod*)
r
Grip
t
Nose*
y
Cleaning wire
* only contra-angles with light
11
4. Operation – assembly/removal
Do not install or remove the handpiece while the motor is running!
Push the handpiece onto the motor and turn it until it clicks.
w
Verify that the connection to the motor is secure.
e
Pull the handpiece to remove it from the motor.
12
Dental burs
> Use only dental burs in good condition with shanks that meet the requirements of the ISO 1797-1 standard.
Follow the manufacturer‘s operating instructions.
> Insert the dental bur only when the handpiece is stationary.
> Do not touch the dental bur when it is in motion.
> Do not activate the push-button chuck when the handpiece is in operation. This leads to dental bur detachment, damage to the rotary chuck (handpiece), and/or may cause the push-button chuck to overheat (risk of injury).
13
Insert and remove the dental bur with push-button chuck
Dental bur shank diameter 1,6 mm:
Insert the dental bur.
Push the button firmly (c) while simultaneously inserting the dental bur until it reaches the limit stop (a).
Dental shank diameter 2,35 mm:
Push the button (c) while simultaneously inserting the dental bur and turning until it clicks into place (b).
w
Pull slightly on the dental bur to verify a secure connection.
e
Press the push-button chuck to remove the dental bur.
14
Insert the dental bur with rotary chuck
Rotate the handpiece sheath counterclock-wise
(opening) until it clicks.
w
Handpiece bur:
Insert the dental bur up to the limit stop.
e
Latch type bur:
Insert the spacer, then insert dental bur up to the limit stop. The spacer compensates for the difference in length.
r
Rotate the handpiece sheath clockwise (closing) until it clicks.
t Pull slightly on the dental bur to verify a secure connection.
15
Test
Do not hold the handpiece at eye level when testing to avoid possible injury.
> Insert the dental bur.
> Start the handpiece.
> If you observe problems, such as vibrations, unusual noise, overheating, smell, coolant supply failure, or leakage,
stop the handpiece immediately and contact your A-dec dealer or A-dec customer service.
16
Remove the dental bur with rotary chuck
Rotate the handpiece sheath counter-clockwise
(opening) until it clicks.
w
Remove the dental bur
(handpiece or latch-type).
e
Screw the threaded pin clockwise into the spacer, then pull the spacer out.
r
Rotate the handpiece sheath clockwise (closing) until it clicks.
17
5. Cleaning and maintenance
Follow your local directives, standards, and guidelines for cleaning, disinfection, and sterilization.
> You can process the handpiece manually or automatically.
> Wear protective clothing and personal protective equipment (PPE).
> Remove the handpiece from the motor.
> Remove the dental bur.
> Clean and disinfect the handpiece immediately after each patient to flush out any liquid (such as blood, saliva, etc.) and to prevent debris from settling on the internal parts.
> Sterilize the handpiece after each patient, following manual or automated cleaning, disinfection, and lubrication.
> Sterilize the cleaning wire following manual cleaning and disinfection.
18
Pre-Cleaning
> If heavily soiled, clean first with disinfectant cloths.
Do not use disinfectants that contain chlorine or protein fixatives. See manual disinfection on page 22.
Manual cleaning internal and external
Rinse and brush off under demineralized water
(< 100°F / < 38°C).
w
Remove any liquid residues (absorbent cloth, blow dry with compressed air).
Do not place the handpiece in liquid disinfectant or in an ultrasonic bath.
19
Clean spray ports
Use the cleaning wire to carefully remove dirt and deposits from the spray ports.
> Clean and disinfect the cleaning wire in an ultrasonic bath/disinfection bath.
Cleaning the coolant tubes
Use an air syringe to blow air through the coolant tube.
In the case of clogged spray ports or coolant tubes, contact your local A-dec dealer or
A-dec customer service.
20
Clean the optic outlet
Clean the handpiece with care and avoid scratching the optic outlet.
Wash the optic outlet with cleaning/disinfectant fluid and a soft cloth.
w
Dry the optic outlet with an air syringe or soft cloth.
Inspect after each cleaning process.
If the optic outlet is damaged, do not use the handpiece and contact your local A-dec dealer or A-dec customer service.
21
Manual disinfection
A-dec | W&H recommends wiping the handpiece down with disinfectant.
> Use only disinfectants that do not contain chlorine and are certified by officially recognized institutes.
Use EPA-registered surface disinfectants.
> Note the manufacturer’s specifications for the use of the disinfectants.
After manual cleaning, disinfection, and lubrication, you must sterilize the (wrapped) handpiece using a steam sterilizer.
22
Automated internal and external cleaning and disinfection
The handpiece can be cleaned and disinfected in a thermal washer disinfector.
> Note the manufacturer’s specifications on equipment, cleaning agents and detergents.
> Make sure that the handpiece is completely dry internally and externally after thermal washer disinfection.
Remove any liquid residues with compressed air.
> Lubricate the dry handpiece immediately after thermal washer disinfection.
23
Lubrication
Recommended lubrication cycles
> Essential after every internal cleaning
> before each sterilization or
> After 30 minutes of use or at least once daily.
With W&H Service Oil F1, MD-400
> Follow the instructions on the oil spray can and the packaging.
or
w With the A-dec | W&H Assistina 301 plus
> See Instructions for use of Assistina.
24
Weekly lubrication of the WG-99 LT and WG-57 LT chuck system
With W&H Service Oil F1, MD-400:
> Fit the spray cap REF 02036100 on the spray can.
> Grip the handpiece firmly.
> Press the tip of the spray nozzle firmly into the chuck system.
> Spray for approximately 1 second.
or
25
w
With the A-dec | W&H Assistina 301 plus
> Fit the adaptor REF 02693000 onto the maintenance handpiece.
Position the spray exit nozzle downward.
> Press the bur side of the handpiece onto the adaptor from below.
> Start the Assistina.
> Press the handpiece onto the adaptor for approximately 10 seconds.
> Remove the handpiece from the adaptor.
> Close the cover of the Assistina and allow it to run for the remainder of the maintenance cycle
(approximately 25 seconds).
26
30 sec.
Test following lubrication
Place the handpiece with head positioned downward.
w
Start the handpiece for 30 seconds to remove excess oil.
> Start at the minimum speed and increase to the maximum speed within 5 to 10 seconds.
> Repeat the complete cleaning and maintenance process with any sign of dirt or debris.
e
Wipe the handpiece with gauze or soft cloth.
> Sterilize the handpiece.
27
Sterilization and storage
> Note the instructions of the unit manufacturer.
> Clean, disinfect, and lubricate before sterilization.
> Place the handpiece in a standard handpiece sterilization pouch.
> Make sure that you only remove dry sterile goods from the sterilizer.
> Store sterile goods dust-free and dry.
The standard ISO 14457 stipulates a durability of at least 250 sterilization cycles.
We recommend that you regularly service the A-dec |W&H handpieces after 1,000 sterilization cycles or one year of use.
28
Approved sterilization procedures
Follow your local directives, standards, and guidelines.
> Dynamic-air-removal sterilzers: 270°F (132°C) for 4 minutes or
> Gravity displacement sterilizers: 270°F (132°C) for 15 minutes
> All other sterilization methods are not approved and must not be used.
Do not exceed 277°F (136°C) during sterilization.
Allow the load to dry for approximately 20 to 30 minutes before removing from the sterilizer.
29
6. A-dec | W&H accessories and spare parts
Use only original A-dec | W&H accessories and spare parts or accessories approved by W&H.
Suppliers:
A-dec | W&H partners
301
02693000
10940021
02038200
02036100
02015101
01312500
01312600
Assistina
Assistina adaptor for chuck system
Service Oil F1, MD-400 (6 pcs)
Spray cap with nozzle for handpiece
Spray cap with spray nozzle for chuck system
Cleaning wire
Spacer
Threaded pin (for dismantling spacer)
30
7. Technical data
*
**
Straight handpiece
Transmission ratio
Colour coding
Motor coupling
Dental bur
Length in mm approved by W&H
Chuck acc. to ISO 1797-1:1995 (Ø mm)
Minimum chuck length
Maximum motor speed
Spray flow rate
Water setting range (recommended water pressure)
Chip air setting range (must be higher than the water pressure)
(recommended chip air pressure)
Chip air consumption at 29 psi
(mm)
(mm)
(rpm) acc. to ISO 14457 (gal/min)
(psi)
(psi)
[CFM]
HG-43A
1 : 1
1 blue ring
ISO 3964
2.35
Contra-angle bur 34 *
Contra-angle shank: with bur limit stop *
12*
40,000
> 0.013
7 – 29 (22) **
22 – 43.5 (29)**
> 0.053
Handpiece bur 50 *
Handpiece shank: to the limit stop*
If the dental bur is not inserted up to the limit stop, the minimum chuck length must be maintained. In this case, or when using longer dental burs than
50 mm, the user must ensure by correct selection of the operating conditions that there is no danger to the user, patients, or third parties.
The chip air / water pressure must be set at the same time
The chip air must be higher than water pressure rpm = min
-1
(Revolutions per minute)
31
Technical data
*
**
Contra-angles
Transmission ratio
Colour coding
Motor coupling
Dental bur
Length in mm approved by W&H
acc. to ISO 1797-1:1995 (Ø mm)
(mm)
WG-99 LT/A
1:5
1 orange ring
ISO 3964
1.6
25 *
WG-57 LT
1,5:1
1 blue ring
ISO 3964
1.6
25 *
WG-56 LT/A
1:1
1 blue ring
ISO 3964
2.35
34 *
WG-66 LT/A
2:1
1 green ring
ISO 3964
2.35
34 *
Maximum operating part diameter
Maximum motor speed
Spray flow rate
Water setting range (recommended water pressure)
Chip air setting range (must be higher than the water pressure)
(recommended chip air pressure)
Chip air consumption at 29 psi
(mm)
2,5
(rpm)
40,000 acc. to ISO 14457 (gal/min)
> 0.013
(psi)
7 – 29 (22) **
2,5
40,000
> 0.013
7 – 29 (22) **
–
40,000
> 0.013
7 – 29 (22) ** engaging
–
40,000
> 0.013
7 – 29 (22) **
(psi) 22 – 43.5 (29)**
22 – 43.5 (29)** 22 – 43.5 (29)** 22 – 43.5 (29)**
[CFM] > 0.053
> 0.053
> 0.053
> 0.053
When using longer dental burs (or if the dental bur is not inserted up to the limit stop), the user must ensure by correct selection of the operating conditions, that there is no danger to the user, patients, or third parties.
The chip air / water pressure must be set at the same time
The chip air must be higher than water pressure rpm = min
-1
(Revolutions per minute)
32
Temperature information
Temperature of the handpiece at the operator side:
Temperature of the handpiece at the patient side:
Temperature of the working part (dental bur):
Physical characteristics
Temperature for storage and transport:
Air humidity for storage and transport:
Ambient temperature during operation:
Air humidity during operation: max. 131°F (55°C) max. 122°F (50°C) max. 105.8°F (41°C)
-40°F to +158°F (-40°C to +70°C)
8% to 80% (relative), non-condensing
+50°F to +95°F (+10°C to +35°C)
15% to 80% (relative), non-condensing
33
8. Recycling and disposal
Recycling
W&H considers that it has a special duty towards the environment. The handpiece along with its packaging has been designed to be as environmentally friendly as possible.
Disposal of the handpiece
Follow your local laws, directives, standards, and guidelines for the disposal of used electrical devices.
Ensure that the parts are not contaminated on disposal.
Disposal of the packaging material
All packaging materials have been selected according to environmentally compatible and disposal aspects and can be recycled. Please send old packaging materials to the relevant collection and reprocessing system. This way, you will contribute to the recycling of raw materials and the reduction of waste.
34
Warranty
A-dec warrants all products in this document against defects in material or workmanship for one year from time of delivery. A-dec’s sole obligation under the warranty is to provide parts for the repair, or at its option, to provide the replacement product (excluding labor). The buyer shall have no other remedy. All special, incidental, and coincidental damages are excluded.
Written notice of breach of warranty must be given to A-dec within the warranty period. The warranty does not cover damage resulting from improper installation or maintenance, accident or misuse. The warranty does not cover damage resulting from the use of cleaning, disinfecting or sterilization chemicals and processes. Failure to follow instructions provided in the A-dec | W&H instructions for use (operation and maintenance instructions) may void the warranty.
No other warranties as to merchantability or otherwise are made.
A-dec | W&H contacts
A-dec Inc.
2601 Crestview Drive
Newberg, OR 97132 USA
Tel: 1.800.547.1883 Within USA/Canada
Tel: 1.503.538.7478 Outside USA/Canada
Fax: 1.503.538.0276
www.a-dec.com
W&H Impex Inc.
6490 Hawthorne Drive, Windsor, Ontario, N8T 1J9
Tel: 1 800 265 6277 Within USA/Canada
Tel: 1.519.944.6739 Outside USA/Canada
Fax: 1.519.974.6121
37
Distribution
A-dec Inc.
2601 Crestview Drive
Newberg, OR 97132 USA
t 1.800.547.1883, f 1.503.538.0276
www.a-dec.com
Manufacturer
W&H Dentalwerk Bürmoos GmbH
Ignaz-Glaser-Straße 53, 5111 Bürmoos,
Austria
wh.com
Form-Nr. 50788 CEN
Rev. 001 / 22.08.2014
Subject to alterations

Public link updated
The public link to your chat has been updated.
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Key features
- High Speed and Low Speed
- Rotary Chuck
- Push Button Chuck
- Sterilizable
- Cleaning wire
- Coolant
- ISO 1797-1 Compliance
- ISO 14457 Compliance