KaVo INTRAmatic contra-angle 80 ES User manual

Instructions for use
INTRAmatic contra-angle 80 ES - 1.004.4375
D
Distributed by:
KaVo Dental GmbH
Bismarckring 39
D-88400 Biberach
Tel. [phone]
Fax [phone]
Manufacturer:
Kaltenbach & Voigt GmbH
Bismarckring 39
D-88400 Biberach
www.kavo.com
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Contents
1 User instructions ............................................................................................................................................... 5
2 Safety ............................................................................................................................................................... 7
2.1 Description of safety instructions ............................................................................................................ 7
2.1.1 Description of safety instructions: Warning symbol ................................................................... 7
2.1.2 Description of safety instructions: Structure .............................................................................. 7
2.1.3 Description of safety instructions: Description of danger levels ................................................ 8
2.2 Safety instructions .................................................................................................................................. 9
3 Product description ......................................................................................................................................... 15
3.1 Purpose – Proper use .......................................................................................................................... 16
3.2 Technical data ...................................................................................................................................... 18
3.3 Transportation and storage conditions ................................................................................................. 19
Contents 1
4
4First use .......................................................................................................................................................... 21
4.1 Check the amount of water .................................................................................................................. 22
5 Operation ........................................................................................................................................................ 24
5.1 Attaching the medical device ................................................................................................................ 25
5.2 Removing the medical device .............................................................................................................. 26
5.3 Insert the milling cutters or diamond grinders ...................................................................................... 26
5.4 Removing the milling tool or diamond grinder ...................................................................................... 29
6 Troubleshooting .............................................................................................................................................. 31
6.1 Check for malfunctions ......................................................................................................................... 31
6.2 Troubleshooting .................................................................................................................................... 32
6.2.1 Troubleshooting: Exchanging the O-rings on the motor coupling ........................................... 32
6.2.2 Troubleshooting: Cleaning the spray nozzle ........................................................................... 34
7 Setup methods according to DIN EN ISO 17664 ........................................................................................... 35
7.1 Preparation at the site of use ............................................................................................................... 35
Contents 2

7.2 Cleaning ............................................................................................................................................... 36
7.2.1 Cleaning: Manual cleaning - external ...................................................................................... 36
7.2.2 Cleaning: Automated external cleaning ................................................................................... 37
7.2.3 Cleaning: Manual cleaning - internal ....................................................................................... 38
7.2.4 Cleaning: Automated internal cleaning .................................................................................... 40
7.3 Disinfection ........................................................................................................................................... 41
7.3.1 Disinfection: Manual disinfection - external ............................................................................. 42
7.3.2 Disinfection: Manual disinfection - internal .............................................................................. 43
7.3.3 Disinfection: Machine disinfection - external and internal ....................................................... 44
7.4 Drying ................................................................................................................................................... 45
7.5 Care products and systems - Servicing ................................................................................................ 46
7.5.1 Care products and systems - Servicing: Care with KaVo Spray ............................................. 47
7.5.2 Care products and systems - Servicing: Servicing with KaVo QUATTROcare ....................... 49
7.6 Packaging ............................................................................................................................................. 51
Contents 3
7.7 Sterilisation ........................................................................................................................................... 52
7.8 Storage ................................................................................................................................................. 55
8
8Tools and consumables ................................................................................................................................. 56
9 Terms and conditions of warranty .................................................................................................................. 58
Contents 4
1
1
U
User instructions
Dear User
Congratulations on purchasing this KaVo quality product. By following the
instructions below you will be able to work smoothly, economically and
safely.
© Copyright by KaVo Dental GmbH
Symbols
Refer to Safety/Warning symbol chapter
Important information for users and service technicians
User instructions 5
Action request
CE mark (Communauté Européenne). A product bearing this mark
meets the requirements of the applicable EC directive.
Can be steam-sterilised at 134 °C -1 °C / +4 °C (273 °F -1.6 °F /
+7.4 °F)
Thermodisinfectable
Target group
This document is intended for dentists and their assistants. The section on
starting up is also intended for service technicians.
User instructions 6

2
2
S
Safety
2.1.1
D
Description of safety instructions: Warning symbol
Warning symbol
2.1.2
D
Description of safety instructions: Structure
DANGER
The introduction describes the type and source of the hazard.
This section describes the potential consequences of non-observance.
▶
The optional step includes necessary measures for hazard preven‐
tion.
Safety 7
2
2.1.3
D
Description of safety instructions: Description of danger levels
The safety instructions listed here, together with the three levels of
danger will help avert property damage and injury.
CAUTION
CAUTION
indicates a hazardous situation that can cause damage to property or mild
to moderate injuries.
WARNING
WARNING
indicates a hazardous situation that can cause death or serious injury.
Safety 8
DANGER
DANGER
indicates a hazardous situation that can directly cause death or serious
injury.
2.2
S
Safety instructions
WARNING
Hazards for the care provider and the patient.
In the case of damage, irregular running noise, excessive vibration, un-
typical warming or when the cutter or grinder cannot be held.
▶
Do not use further and notify Service.
Safety 9
CAUTION
Premature wear and malfunctioning from improper storage during long
periods of nonuse.
Reduced product life.
▶
The medical device should be cleaned, serviced and stored in a dry
location, according to instructions, before long periods of nonuse.
CAUTION
Injury or damage due to wear.
Irregular running noise, significant vibration, overheating, imbalance or
insufficient grip.
▶
Stop work and seek service support.
Safety 10

CAUTION
Risk of burn injury from hot handpiece head or hot handpiece lid.
Burn injuries in the mouth may be caused if the instrument overheats.
▶
Never touch soft tissue with the handpiece head or handpiece lid!
CAUTION
Risk due to incorrectly stored instrument.
Damage to clamping system from dropping the instrument.
▶
After treatment, place the instrument properly in the cradle without
the tool.
Safety 11
CAUTION
Instructions for the safe use of handpieces with electronic micromotors.
Electronic micromotors generate much more energy than conventional
pneumatic turbines and motors. Given the higher torque and speed, hand‐
pieces that are poorly serviced, damaged or used improperly can overheat
which can seriously burn the patient.
▶
Never contact soft tissue with the instrument head.
Note
For safety reasons, we recommend that the tool holder system be checked
annually after the warranty period expires.
Safety 12
The following individuals are authorized to repair and service KaVo prod‐
ucts:
▪ Technicians at KaVo branches throughout the world
▪ Technicians specially trained by KaVo
The following guidelines must be observed to ensure save use of the elec‐
trically driven handpieces:
▪ The service instructions for handpieces must be precisely following
when using KAVO spray or QUATTROcare care systems.
▪ Before each use, the handpiece must be checked for external damage.
▪ Before each use, perform a test run with the handpiece, and watch for
atypical heating and unusual noise and vibration.
▪ Immediately stop using handpieces that act unusual.
▪ Never press the pushbutton during operation. This also includes lifting
the cheek or tongue!
Safety 13
To ensure proper function, the medical device must be set up according to
the reprocessing methods described in the KaVo Instructions for Use, and
the care products and care systems described therein must be used. KaVo
recommends specifying a service interval at the dental office for a licensed
shop to clean, service and check the functioning of the medical device. This
service interval depends on the frequency of use and should be adjusted
accordingly.
Service may only be carried out by KaVo-trained repair shops using original
KaVo replacement parts.
Safety 14

3
3
P
Product description
INTRAmatic contra-angle handpiece 80 ES,M
Mat. no. 1.004.4375
Product description 15
3
3.1
P
Purpose – Proper use
Purpose:
This medical device is
▪ Only intended for dental treatment. Any other type of use or alteration
to the product is impermissible and can be hazardous. The medical
device is intended for the following uses: Removal of carious material,
cavities and crown preparations, removal of fillings, processing of tooth
and restoration surfaces.
▪ A medical device according to relevant national statutory regulations.
Product description 16
P
Proper use:
According to these regulations, this medical device may only be used for
the described application by a knowledgeable user. The following must be
observed:
▪ the applicable health and safety regulations
▪ the applicable accident prevention regulations
▪ these Instructions for use
According to these regulations, the user is required to:
▪ only use equipment that is operating correctly,
▪ use the equipment for the proper purpose,
▪ protect him or herself, the patient and third parties from danger, and
▪ avoid contamination from the product..
Product description 17
3
3.2
T
Technical data
Drive speed max. 40,000 rpm
Speed transmission 1:1
ID 1 blue ring
Pushbutton chuck 1.6 dia.
Milling cutters or grinders ISO 1797-1 type 3
The contra-angle handpiece can be mounted on all INTRAmatic motors,
and motors with a connection in accordance with ISO 3964 / DIN 13940.
Product description 18

3
3.3
T
Transportation and storage conditions
CAUTION
It is hazardous to start up the medical device after it has been stored
strongly refrigerated.
This can cause the medical device to malfunction.
▶
Prior to start-up, very cold products must be heated to a temperature
of 20°C to 25°C (68°F to 77°F).
Temperature: -20°C to +70°C (-4°F to +158°F)
Relative humidity 5% RH to 95% RH
Product description 19
Air pressure: 700 hPa to 1060 hPa (10 psi to 15 psi)
Protect from moisture.
Product description 20
4
4
F
First use
WARNING
Hazard from nonsterile products.
Infection danger to the care provider and patient.
▶
Before first use and after each use, prepare and sterilise the medical
device if needed.
First use 21
4
4.1
C
Check the amount of water
CAUTION
Overheating of the tooth due to lack of cooling water.
Thermal damage to the dental pulp.
▶
Adjust the water amount for the spray cooling to a minimum of 50
cm3/min
First use 22

CAUTION
Hazard from insufficient spray water.
Insufficient spray water can cause the medical device to overheat and
damage the tooth.
▶
Check the spray water channels and clean the spray nozzles with the
nozzle needle M
Mat. no. 0.410.0931
if necessary.
▶
Check the water filter and exchange if necessary.
First use 23
5
5
O
Operation
CAUTION
Removing and attaching the contra-angle handpiece while the device is
rotating.
Damage to the drive.
▶
Never attach or remove the contra-angle handpiece while the device
is rotating!
Operation 24
5
5.1
A
Attaching the medical device
▶ Place the medical device on the (LUX) motor coupling and lock it into
place.
▶ Before each treatment, pull on the medical device to see if it is securely
seated in the motor coupling.
Operation 25
5
5.2
R
Removing the medical device
▶ Unlock the contra-angle handpiece from the motor coupling and re‐
move it, or pull it off by twisting it slightly.
5.3
I
Insert the milling cutters or diamond grinders
Note
Only use carbide cutters or diamond grinders that comply with ISO 1797-1
type 3, are made of steel or hard metal and meet the following criteria:
- Shaft diameter: 1.59 to 1.60 mm
- Overall length: max. 25 mm
- Shaft clamping length: min. 11 mm
- Blade diameter: max. 2 mm
Operation 26

WARNING
Use of unauthorised tools.
Injury to the patient or damage to the medical device.
▶
Observe manufacturer instructions and use the tool properly.
▶
Only use tools that do not deviate from the specified data.
CAUTION
Injury from using worn tools.
Tools can fall out during treatment and harm the patient.
▶
Never use tools with worn shafts.
▶
Follow the instructions for use of the tool.
Operation 27
CAUTION
Injury hazard from tools.
Infections or cuts.
▶
Wear gloves or fingerstalls.
▶ Press the push button firmly with your thumb and simultaneously insert
the tool until it hits the stop.
▶ Check that the cutter or grinder is securely attached by pulling on it.
Operation 28
5
5.4
R
Removing the milling tool or diamond grinder
CAUTION
Hazard from rotating tools.
Laceration.
▶
Do not carelessly contact rotating tools.
CAUTION
Actuation of the pushbutton chuck while the tool is rotating.
Injury.
Damage to the chucking system.
▶
Do not press the pushbutton while the tool is rotating!
Operation 29
▶ After the tool has stopped rotating, forcefully press the pushbutton with
your thumb and simultaneously remove the tool.
DANGER
Hazard from defective checking system.
The tool can fall out and cause injury.
▶
Pull on the tool to check if the chucking system is functioning properly
and that the tool is firmly clamped. Wear gloves or a thimble to check,
insert, or remove the bits to prevent injury and infection.
Operation 30

6
6
T
Troubleshooting
6.1
C
Check for malfunctions
CAUTION
Missing or damaged O-rings.
Malfunctions and premature failure.
▶
Make sure that all O-rings are on the coupling and undamaged.
CAUTION
Heating of the product.
Burns or product damage from overheating.
▶
Do not use the product if it is irregularly heated.
Troubleshooting 31
▶ The medical device is too hot while idling:
Check the amount of cooling air.
▶ The medical device is too hot while working:
Caring for the medical device.
▶ When the speed drops or is uneven:
Caring for the medical device.
▶ An O-ring is missing on the motor coupling:
Replace O-ring.
6
6.2.1
T
Troubleshooting: Exchanging the O-rings on the motor coupling
CAUTION
Hazard from improper care of the O-rings.
Malfunctions or complete failure of the product.
▶
Do not use Vaseline or other grease or oil.
Troubleshooting 32
Note
The O-rings on the motor coupling may only be lubricated with a cotton
ball wetted with KaVo spray.
▶ Press the O-ring between your fingers to form a loop.
▶ Shove the O-ring to the front, and remove it.
▶ Insert new O-rings into the grooves.
Troubleshooting 33
6
6.2.2
T
Troubleshooting: Cleaning the spray nozzle
CAUTION
Hazard from insufficient amount of spray water.
Insufficient spray water can cause the medical device to overheat and
damage the tooth.
▶
Check spray water channels and if necessary clean spray nozzles
with the nozzle needle (M
Mat. no. 0.410.0921
).
Troubleshooting 34

7
7
S
Setup methods according to DIN EN ISO 17664
7.1
P
Preparation at the site of use
WARNING
Hazard from non-sterile products.
There is a risk of infection from contaminated medical devices.
▶
Observe suitable personal protective measures.
▶ Remove all residual cement, composite or blood without delay.
▶ Recondition the medical device as soon as possible after treatment.
▶ Remove the cutter or grinder from the medical device.
▶ The medical device must be dry when transported for reconditioning.
▶ Do not place it in a solution or similar.
Setup methods according to DIN EN ISO 17664 35
7
7.2
C
Cleaning
CAUTION
Malfunctions from cleaning in an ultrasonic unit.
Defects in the product.
▶
Only clean manually or in a thermodisinfector.
7.2.1
C
Cleaning: Manual cleaning - external
Accessories required:
▪ Tap water 30 °C ± 5 °C (86 °F ± 10 °F)
▪ Brush, e.g. medium-hard toothbrush
Setup methods according to DIN EN ISO 17664 36
▶ Brush off under flowing tap water.
7.2.2
C
Cleaning: Automated external cleaning
KaVo recommends thermodisinfectors in accordance with EN ISO 15883
that are operated with alkaline cleaning agents at a pH of max. 10 (e.g.
Miele G 7781 / G 7881 – validation was performed with the ""VARIO-TD"
programme, "neodisher® mediclean" cleaning agent, "neodisher® Z" neu‐
tralisation agent, and "neodisher® mielclear" rinsing agent and extends only
to the compatibility of materials with respect to KaVo products).
Setup methods according to DIN EN ISO 17664 37
▶ For program settings as well as cleansers and disinfectants to be used,
please refer to the Instructions for Use of the thermodisinfector (com‐
plying with max. pH value of 10).
▶ In order to prevent negative effects on the medical device, make sure
that the interior and the exterior of the medical device are dry, and then
lubricate immediately with care agents from the KaVo care system.
7
7.2.3
C
Cleaning: Manual cleaning - internal
Can only be done with KaVo CLEANspray or KaVo DRYspray.
▶ Cover the medical device with the KaVo CLEANpac bag, and place it
on the corresponding care adapter. Press the spray button three times
for 2 seconds each time. Remove the medical device from the spray
attachment and let the cleaner work for one minute.
Setup methods according to DIN EN ISO 17664 38

▶ Afterwards, rinse for 3-5 seconds with KaVo DRYspray.
S
See also:
KaVo CLEANspray / KaVo DRYspray Instructions for Use
Note
KaVo CLEANspray and KaVo DRYspray for manual interior cleaning are
only available in the following countries:
Germany, Austria, Switzerland, Italy, Spain, Portugal, France, Luxem‐
bourg, Belgium, Netherlands, United Kingdom, Denmark, Sweden, Fin‐
land and Norway.
In other countries, only automated interior cleaning with thermodisinfec‐
tors in accordance with ISO 15883-1.
Setup methods according to DIN EN ISO 17664 39
7
7.2.4
C
Cleaning: Automated internal cleaning
KaVo recommends thermodisinfectors in accordance with EN ISO 15883
that are operated with alkaline cleaning agents at a pH of max. 10 (e.g.
Miele G 7781 / G 7881 – validation was performed with the ""VARIO-TD"
programme, "neodisher® mediclean" cleaning agent, "neodisher® Z" neu‐
tralisation agent, and "neodisher® mielclear" rinsing agent and extends only
to the compatibility of materials with respect to KaVo products).
▶ For program settings as well as cleansers and disinfectants to be used,
please refer to the Instructions for Use of the thermodisinfector (com‐
plying with max. pH value of 10).
▶ In order to prevent negative effects on the medical device, make sure
that the interior and the exterior of the medical device are dry, and then
lubricate immediately with care agents from the KaVo care system.
Setup methods according to DIN EN ISO 17664 40
7
7.3
D
Disinfection
CAUTION
Malfunctioning from using a disinfectant bath or disinfectant containing
chlorine.
Defects in the product.
▶
Only disinfect in a thermodisinfector or manually.
Setup methods according to DIN EN ISO 17664 41
7
7.3.1
D
Disinfection: Manual disinfection - external
KaVo recommends the following products based on material compatibility.
The microbiological efficacy must be ensured by the disinfectant manufac‐
turer.
▪ CaviCide from Metrex
Tools required:
▪ Cloths for wiping down the medical device.
Setup methods according to DIN EN ISO 17664 42

▶ Spray the disinfectant on a cloth, then thoroughly wipe down the med‐
ical device and leave the disinfectant to soak in according to the in‐
structions from the disinfectant manufacturer.
▶ Follow the instructions for use of the disinfectant.
7
7.3.2
D
Disinfection: Manual disinfection - internal
The efficacy of manual internal disinfection must be demonstrated by the
manufacturer of the disinfection agent. With KaVo products, use only dis‐
infection agents that have been released by KaVo with respect to the com‐
patibility of materials (e.g. WL-cid / made by ALPRO).
▶ Immediately after internal disinfection, lubricate the KaVo medical de‐
vice immediately with care agents from the KaVo care system.
Setup methods according to DIN EN ISO 17664 43
7
7.3.3
D
Disinfection: Machine disinfection - external and internal
KaVo recommends thermodisinfectors in accordance with EN ISO 15883
that are operated with alkaline cleaning agents at a pH of max. 10 (e.g.
Miele G 7781 / G 7881 – validation was performed with the ""VARIO-TD"
programme, "neodisher® mediclean" cleaning agent, "neodisher® Z" neu‐
tralisation agent, and "neodisher® mielclear" rinsing agent and extends only
to the compatibility of materials with respect to KaVo products).
▶ For program settings as well as cleansers and disinfectants to be used,
please refer to the Instructions for Use of the thermodisinfector (com‐
plying with max. pH value of 10).
▶ In order to prevent negative effects on the medical device, make sure
that the interior and the exterior of the medical device are dry, and then
lubricate immediately with care agents from the KaVo care system.
Setup methods according to DIN EN ISO 17664 44
7
7.4
D
Drying
Manual drying
▶ Blow off the outside and inside with compressed air until water drops
are no longer visible.
Machine drying
The drying procedure is normally part of the cleaning program of the ther‐
modisinfector.
▶ Follow the instructions for use of the thermodisinfector.
Setup methods according to DIN EN ISO 17664 45
7
7.5
C
Care products and systems - Servicing
WARNING
Sharp cutters or grinders in the medical device.
Risk of injury from sharp or pointed cutters or grinders.
▶
Remove cutter or grinder.
CAUTION
Premature wear and malfunctions from improper servicing and care.
Reduced product life.
▶
Perform proper care regularly!
Setup methods according to DIN EN ISO 17664 46

Note
KaVo only guarantees that its products will function properly when the care
products used are those listed as accessories, as they were tested for
proper use on our products.
7.5.1
C
Care products and systems - Servicing: Care with KaVo Spray
KaVo recommends servicing the product after each time it is used, i.e. after
each automatic cleaning and before each sterilisation.
▶ Remove cutter or grinder.
▶ Cover the product with the CLEANpac bag.
▶ Place the product on the cannula and press the spray button for one
second.
Setup methods according to DIN EN ISO 17664 47
S
Servicing of the clamping chuck
KaVo recommends cleaning and servicing the chuck system once a week.
▶ Remove the cutter or grinder, place the spray nipple tip in the opening
and spray.
▶ Carry out the servicing according to the instructions in the section,
"Care with KaVo Spray".
Setup methods according to DIN EN ISO 17664 48
7
7.5.2
C
Care products and systems - Servicing: Servicing with KaVo
QUATTROcare
Cleaning and care unit with expansion pressure for effective cleaning and
care.
KaVo recommends servicing the product after each time it is used, i.e. after
each automatic cleaning and before each sterilisation.
▶ Remove cutter or grinder.
▶ Service the product.
Setup methods according to DIN EN ISO 17664 49
C
Chuck care
KaVo recommends cleaning and servicing the chuck system once a week.
See also:
Instructions for use K
KaVo QUATTROcare
▶ Remove the cutter or grinder, place the spray nipple tip in the opening
and spray.
▶ Subsequently treat with the care products and care systems specified.
See also:
Care with KaVo QUATTROcare
Setup methods according to DIN EN ISO 17664 50

7
7.6
P
Packaging
Note
The sterilisation bag must be large enough for the instrument so that the
bag is not stretched.
The quality and use of the sterilised product packaging must satisfy ap‐
plicable standards and be suitable for the sterilisation procedure.
▶ Seal each medical device individually in a sterilised item package!
Setup methods according to DIN EN ISO 17664 51
7
7.7
S
Sterilisation
Sterilisation in a steam steriliser (autoclave) in accordance with EN 13060/
ISO 17665-1 (e.g. KaVo STERIclave B 2200 / 2200 P)
CAUTION
Premature wear and malfunctions from improper servicing and care.
Reduced product life.
▶
Before each sterilisation cycle, service the medical device with KaVo
care products.
Setup methods according to DIN EN ISO 17664 52
CAUTION
Contact corrosion due to moisture.
Damage to product.
▶
Immediately remove the product from the steam steriliser after the
sterilisation cycle!
The KaVo medical device has a maximum temperature resistance up to
138 ℃ (280.4 °F).
Setup methods according to DIN EN ISO 17664 53
(Depending on the available autoclave,) select a suitable procedure from
the following sterilisation processes:
▪ Autoclave with three times initial vacuum:
– at least 3 minutes at 134 °C -1 °C / +4 °C (273 °F -1.6 °F / +7.4
°F)
Drying time: 20 min.
▪ Autoclave using the gravitation method:
– at least 10 minutes at 134 °C -1 °C / +4 °C (273 °F -1.6 °F / +7.4
°F) or alternatively
Drying time: 30 min.
– at least 60 minutes at 121 °C -1 °C / +4 °C (250 °F -1.6 °F / +7.4
°F)
Drying time: 30 min.
▶ Use according to the manufacturer's Instructions for Use.
Setup methods according to DIN EN ISO 17664 54

7
7.8
S
Storage
Prepared products must be stored, protected from germs (as far as possi‐
ble) and dust, in a dry, dark, cool room.
▶ Comply with the expiry date of the sterilised items.
Setup methods according to DIN EN ISO 17664 55
8
8
T
Tools and consumables
Available from dental suppliers.
Material summary Mat. no.
Instrument stand 2151 0.411.9501
Cellulose pad 100 units 0.411.9862
Cleanpac 10 units 0.411.9691
Nozzle needle 0.410.0931
Sterilisable spray hose (cut section) 0.065.5188
Hose 150 mm (item) 0.593.0252
Tools and consumables 56
O
Only for the USA
Material summary Mat. no.
KaVo Spray America 2113 A 0.411.9660
QUATTROcare plus Spray America
2141 P
1.005.4524
Tools and consumables 57
9
9
T
Terms and conditions of warranty
The following warranty conditions apply to this KaVo medical device:
KaVo provides the end customer with a warranty of proper function and
guarantees zero defects in respect of material and processing for a period
of 24 months from data of invoice, subject to the following conditions:
In case of justified complaints, KaVo will honour its warranty with a free
replacement or repair. Other claims of any nature whatsoever, in particular
with respect to compensation, are excluded. In the event of default, gross
negligence or intent, this shall only apply in the absence of mandatory legal
regulations to the contrary.
KaVo cannot be held liable for defects and their consequences that have
arisen or may arise from to natural wear, improper handling, cleaning or
maintenance, non-compliance with operating, maintenance or connection
instructions, calcination or corrosion, contaminated air or water supplies or
chemical or electrical factors deemed abnormal or impermissible in ac‐
Terms and conditions of warranty 58

cordance with KaVo's instructions for use or other manufacturer's instruc‐
tions.
No liability is assumed when defects or their consequences are derived
from manipulations or changes to the product by the customer or a third
party.
Service warranty claims will only be accepted if the product is submitted
along with proof of purchase in the form of a copy of the invoice/delivery
note.
Terms and conditions of warranty 59
1.006.3355 · kb · 20101012 - 03 - US · en