Operating instructionsK-AIRplus 743, 744, 745.

Always on the safe side.

Hersteller/manufacturer:Kaltenbach & Voigt GmbH Bismarckring 39D-88400 Biberach

Vertrieb/distribution:KaVo Dental GmbH Bismarckring 39 • D-88400 BiberachTel.: 0 73 51 / 56-0 • Fax: 0 73 51 / 1488

A 1 User information ............................................................................................................................................................2A 1.1 Meaning of the pictograms ......................................................................................................................................2A 1.2 Important information ..............................................................................................................................................2A 1.3 Precautions ..............................................................................................................................................................2A 1.4 Possible uses and applications ..............................................................................................................................3A 1.5 Technical data ........................................................................................................................................................3

A 2 Scope of delivery - Accessories ..................................................................................................................................4A 2.1 Scope of delivery ....................................................................................................................................................4A 2.2 Accessories ............................................................................................................................................................4

A 3 Compressed air supply 5

A 4 Location ..........................................................................................................................................................................5

A 5 Mounting and connection ..............................................................................................................................................6

A 6 Preparation for commencing operation ......................................................................................................................7A 6.1 Set the operating pressure ......................................................................................................................................7A 6.2 Filling the spray water storage tank ........................................................................................................................7

A 7 Controls and functional elements ................................................................................................................................8

A 8 Operation ........................................................................................................................................................................9A 8.1 Toolchange ..............................................................................................................................................................9A 8.2 Commencing operation ........................................................................................................................................10A 8.3 Turbine foot switch ................................................................................................................................................10A 8.4 Adapter, milling turbine (accessory) ......................................................................................................................10

A 9 Maintenance ..................................................................................................................................................................11

A 10 Malfunctions ..................................................................................................................................................................12

A 11 Replacing the turbine rotor ........................................................................................................................................14

Guarantee conditions ......................................................................................................................................................15

EC- Declaration of conformity..........................................................................................................................................15Spare parts 745 ..............................................................................................................................................................16Spare parts 743, 744 ......................................................................................................................................................17Spare parts food switch ................................................................................................................................................188

1

K-AIRplus 743, 744, 745.

2

K-AIRplus 743, 744, 745.

Modifications and improvements to theproduct as a result of new technical devel-opments are possible.

This does not imply any right to retrofittingof existing units.

KaVo assumes no responsibility for damagearising through:

• external influences (poor quality of themedia or inadequate installation)

• use of incorrect information• improper use• improperly performed repairs.

Repair and maintenance work - apart fromthe activities described in these instructionsfor use - may be performed only by quali-fied technical personnel.

In the event of modifications by third par-ties, the approvals become null and void.KaVo recommends using only originalspare parts for operation and for repair.

A 1.3 Precautions

Safe operation and protection of the unit areensured only through proper use in accor-dance with the instructions for use andusing the tools approved for the purpose.The following should also be observed:

• the tool manufacturer's instructions, • the work safety regulations,• the accident prevention regulations.

!Each time before switching on, check theset speed.!Observe the permissible maximum speedand maximum pressure of the tools(according to tool manufacturer'sinstructions).!Use safety screens when working withrotating tools.!To avoid danger through accidentalswitching on, place the handpiece on asuitable shelf or tool support.

In the event of an unsatisfactory conditionof the unit or improper use, e.g.:

• unsuitable tools• tool shafts not manufactured according to

DIN-ISO• improper use or use not in accordance

with the purpose• unapproved speeds for tools used• incorrect clamping of the tools in the

chuck• insufficient retaining force of the chuck

(wear, soiling, failure to follow the prod-uct care instructions for the chuck system,etc.)

• different sizes of tool shaft and chuck • lack of regular cleaning of the chuck• failure to follow the maintenance instruc-

tions• failure to comply with the accident pre-

vention regulations (e.g. failure to usesafety screens, safety devices, handpiecesupports, etc.)

• failure to take into account signs of wearand damage

• tool shafts which have slipped out (poten-tial danger = bending of the tool shafts)

there is a danger of injury and damage tomaterial and unit, e.g. due to:

• Bending of the tool shafts• Accidental withdrawal of the tools from

the chuck• Breaking or splintering of the tool.

• Eccentric rotation or shattering of tools, or

• Catching and tangling-up loose fabrics, fibres, hair etc.

• Snagging and rolling up• Catapulting of small material-partsin order to prevent this, safety precautionsmust be incorporated into the unit.

Any liability shall be excluded ifdefects or the consequences thereof

are due to manipulation or modification tothe product by the customer or by any thirdparties not authorized by KaVo.

A 1 User information

A 1.1 Meaning of the pictograms

Situations where failure to follow theinstructions may lead to danger,

damage to material or operating faults.

Important information for operatorand engineer.

Automatic modeAutomatic sequence

Close, screw in, fasten, etc.

Open, release, loosen

+ more, higher

- less, lower

∞ Continuous operation

Time, time sequence

Disconnect mains plug

A 1.2 Important information

The instructions for use should beread by the user before starting up

the unit for the first time, in order to avoidincorrect operation and other damage. Ifother language versions are required,please request these from your responsibleKaVo agent. Duplication and distributionof the instructions for use (IU) requireKaVo's prior consent.

All technical data, information and proper-ties of the product described in the IU cor-respond to the state on going to press.

3

K-AIRplus 743, 744, 745.

A 1.4 Possible uses and applications

K-AIRplus is licensed for precision millingwork of dental prosthetic materials andproducts, by trained personnel using thenecessary licensed tools, whilst observingthe manufacturers instructions, as well ashealth and safety regulations. K-AIRplus is not licensed for use onpatients.

A 1.5 Technical data

Turbine Control Unit 745DimensionsLength: 256 mm Height: 190 mm Width: 126 mm

Weight: 5000 g Air consumption: 41 I/min Operating pressure: 3.7 barAmount of filling water tank: 125 ml

Turbine Handpiece 743, 744Dimensions:Length: 145 mmMax. diameter: 24 mmshaft diameter 743: 17,5 mm

Weight 744: 105 gWeight 743: 124 g

Speed: approx. 270.000 rpm

Spray air pressure: 3.7 bar

Blown air pressure: 6 bar

Spray water flow rate: 1-10 ml/min

Ambient conditions:

Permitted in interior roomsPermissible ambient temperature range of 5° C - 40° CPermitted to max. relative humidity 80%

A 1.6 Combination Controller - hand-piece

In the combination with K-AIRplus units oftypes 745 only the following handpiece canbe operated:

K-AIRplus handpiece 743, 744

The safty of the K-AIRplus controlunits with handpieces 744 can be

guaranteed only with the handpiece/controlunit combinations approved by KaVo.

Max. 3,7 bar

Kair plus3

2

1

M6

5

4

502040

80psibar

4

K-AIRplus 743, 744, 745.

A 2 Scope of delivery - Accessories

A 2.1 Scope of delivery

Check that the system is complete.

1 Turbine control unit 745(with connection set for compressed airsupply line)

1 Turbine handpiece 744or

1 Turbine handpiece 743

only for 7441 Handpiece rest 4850

1 Turbine footswitch Mat. No. 0.734.1470

1 Can of turbine spray

1 Packet of cleaning clothsMat. No. 0.489.3021

only for 7441 FG tool set Mat. No. 0.410.0000

A 2.2 Accessories

Accessories supplied on request.

Turbine care set consisting of:

2 cans of turbine spray with cleaning clothsMat. No. 0.620.1931

only for 743 Fork spanner 17

only for 744Special key for turbine change

Mat. No. 0.510.0141

Milling turbine Mat. No. 1.003.5193

Max. 3,7 bar

Kair plus3

2

1

M6

5

4

502040

80psibar

744

743

5

K-AIRplus 743, 744, 745.

A 3 Compressed air supply

A compressed air supply is needed tooperate the turbine system. The air pressuresupply must be at least 3.7 bar. It must onno account exceed 6 bar.The operatingpressure indicated on the manometer 1must not be set to over 3.7 bar (see A 6.1).

A 4 Location

The turbine control can either be placed onthe table top or mounted under the table(see Section A 5).

Max. 3,7 bar

Kair plus3

2

1

M6

5

4

502040

80psibar

Kair plusmax. 3,7 b

ar 40

32

1

5

4

3

2

1

M

6

5

4

50

20 80

psibar

1

6

K-AIRplus 743, 744, 745.

A 5 Mounting and connection

"Table-top" arrangement.

Place the turbine control unit 745 on thework top and the turbine footswitch underthe table.

Lead connecting hose ! and compressedair supply line " in the foot space.

Connect compressed air supply line(if required, use compressed air connectionset).

Fix connecting hose " from the turbinecontrol to the turbine footswitch.

Remove the cover # of the footswitch inthe direction indicated by the arrow (thecover is only pushed on).Insert connector $ of the connecting hose" into the footswitch coupling and fixwith two screws %. Replace the cover #and press down.

"Under-table" arrangement.

Mount the turbine control unit 745 on theside of the store cabinet at the requiredposition using the mounting set. Place theturbine footswitch under the table.

Max. 3,7 bar

Kair plus3

2

1

M6

5

4

502040

80psibar

Kair plusmax. 3,7 b

ar 40

32

1

5

4

3

2

1

M

6

5

4

50

20 80

psibar

2

1

3

4

5

7

K-AIRplus 743, 744, 745.

A 6 Preparation for commencing operation

Connect the connecting hose % to thecompressed air line of the compressor feed(if required, use the compressed airconnection set).

The input air pressure must notexceed 6 bar.

For initial lubrication of the turbine rotorfit the turbine handpiece with nipple "onto the nozzle of the turbine spray can 1and press down once (approx. 0,5 sec ).

Connect 4-channel turbine hose 3 to fast-action coupling 2 on nipple " of theturbine handpiece. Pull back fast-actioncoupling 2 with the fingers.

A 6.1 Set the operating pressure

Raise the knob 1 of the filter pressurereducer in the direction of the arrow .

Start up the turbine system by pressingdown the foot switch $. With the turbinerunning, turn the knob 1 in the directionof the arrow ++ ;; -- until thereading on manometer 2 is set to 3.7 bar.

Reset the knob 1 of pressure reducer inthe direction of the arrow . This willprevent accidental maladjustment of thepressure reducer.

For safety reasons, never set theoperating pressure above 3.7 bar.

A 6.2 Filling the spray water storagetank

To prevent clogging of the narrowspray water channels, soft water, i.e.

without lime, must be used. KaVorecommendation: “BRITTA watersoftener“.

Open screw closure 1 and fill softenedwater up to the upper edge of theinspection window 2 (125 ml) through asmall funnel. Screw in the screw closure1 again.

1X1X

Max. 3,7 bar

Kair plus3

2

1

M6

5

4

502040

80psibar

32

1

M6

5

4

502040

80psibar

_ +

Max. 3,7 bar

Kair plus

1

4

2

3

1

2

4

3

1

2

8

K-AIRplus 743, 744, 745.

A 7 Controls and functional elements

1 Screw closure for spray water storage tank

2 Rotary knob for pressure setting (drive pressure)

3 Manometer-drive pressure

4 Filter container

5 Condensate drain valve

6 Turbine spray

7 4-Channel turbine hose

8 4-hole fast-action coupling

9 Tool change sleeve

0 Handpiece handle sleeve (only 744)

q Handpiece rest (only 744)

w Compressed-air connecting tube

e Carrying handle (footswitch)

r Switch plate for drive air

t Spray on/off switch

z Blown air switch

u Turbine footswitch

i 4-Channel connector

o Connecting hose for footswitch / control

p Spray water storage tank

a Multifunction control block

s Setscrew for spray volume

d Handpiece shaft (only 743)

&

'

()

(*

(+

(,

(-

(.

/0

/)

/*

"!

%

$

#

12

(3(4

(5

(0

32

1

M6

5

4

502040

80psibar

Max. 3,7 bar

Kair plus

12d

9

K-AIRplus 743, 744, 745.

A 8 Operation

A 8.1 Toolchange

Change tools only with the turbinehandpiece 743, 744, completely at a

standstill.

Cleaning and lubricatingCarry out maintenance with turbine spray1 (see also daily main-tenance) bycleaning and lubricating the turbine rotortwice daily (with frequent use up to 3 timesa day). If necessary, wipe off any lubricantcoming out of the handpiece tip withcleaning cloth !.

Tool mountingTurn the tool change knob 3 to the rightin order to open the chuck $. Insert toolin the direction of the arrow and turnthe tool change knob 3 back to the left(close chuck).

Tool removalTurn the tool change sleeve 3 to the rightand open the chuck $. Remove tool in thedirection of the arrow .

Only grinding tools with 1.6 mmdiameter FG shank must be used.

Never exceed the maximum permittedspeed and pressure specified for aninstrument by the manufacturer. Safetygoggles must be worn and an effective dustextractor used while trimming and shapingwith rotating tools.

!

"

1X1X

%$

%$

A 8.2 Commencing operation

Insert grinding tool in accor-dance withand start up the turbine system bydepressing the footswitch 1.

All grinding work with turbine handpiece733, 744 must be carried out using onlyslight pressure.

A 8.3 Turbine foot switch

When the switch plate 3 is pressed down,the driving air for the turbine handpiece isswitched on. With “blown air“ switch 2,the workpiece can be blown off withoutreleasing it from the hand. The “spray“on/off switch 1 is activated by pressing itonce. Spray water remains “on“ until the“spray switch“ 1 is pressed again. In thecase of faults with blown air or spray, seeMalfunctions, Section A 10.

A 8.4 Adapter, milling turbine (acces-sory)

(not included in initial delivery)Insert milling turbine 1 into the adapter2, and secure with the knurled-headscrew 3. Push the adapter-guide 4 ontothe milling arm 5, and secure with theknurled-head screw 6.

10

K-AIRplus 743, 744, 745.

Max. 3,7 bar

Kair plus3

2

1

M6

5

4

502040

80psibar

"

"

!%

"

#

!$ %

&

A 9 Maintenance

Daily

Under normal operating conditions, carryout maintenance twice daily on the turbinehandpiece (3 times only in the case of longperiods of daily use).

Remove the turbine handpiece from therapid-action coupling 3, fit it onto thenozzle of the turbine spray can 5 withnipple ! and press down once (approx. 0.5sec.). In the event of accidental over-dosage, the turbine will only reach topspeed again after several seconds ofoperation.

If necessary, wipe off any lubricant comingout of the handpiece tip with cleaning cloth".

Checking the spray water storage tank. Spray water storage tank is filled fromabove, see section A 6.2.

Weekly

Empty the water collected in the filtercontainer 7 by opening the condensatedrain valve 8 in the direction of the arrow.

Check the operating pressure on themanometer 5 with the turbine runningand, if necessary, set to 3.7 bar (see A 6.1).

If the unit is out of operation for along time, it is essential to empty the

spray water tank and to refill it (soft water).

11

K-AIRplus 743, 744, 745.

32

1

M6

5

4

502040

80psibar

Max. 3,7 bar

Kair plus

1X1X

2

5

4

1

6

7

8

3

A 10 Malfunctions

Test functions with and without thehandpiece so that it is possible to

determine whether the malfunction is dueto the handpiece or the control.

10.1 No water jet present

Cause:a) No water in tank e.b) Setscrew 1 closed.c) Nozzle 9 blocked or encrusted with

limescale.d) Adjusting screw (“water“ valve) 4

closed.

Remedy:a) Fill tank e with water (see 6.2).b) Turn setscrew 1 to fully open.c) See 11. Clear nozzle 9 using a needle

etc.d) Remove cap. Turn adjusting screw to the

right stop with screwdriver 3 throughthe opening (“water“ valve) 4.Preselect “water spray“ by means ofswitch q. By pressing down the switchplate 0, start the turbine handpiece.Turn adjusting screw 4 to the left untilthe required amount of water emerges.

10.2 No atomization of the water jet

Cause:a) Nozzle 8 blocked or encrusted with

limescale.b) Adjusting screw (“air spray“ valve) 5

closed.

Remedy:a) See 11. Clear nozzle 8 with a needle

etc.b) Remove cap. Turn adjusting screw to

the right stop with screwdriver 3through the opening (“air spray“ valve)5. Preselect “water spray“ by means ofswitch q. By pressing down the switchplate 0, start the handpiece. Turn adju-sting screw 5 to the left until the requi-red air-water atomization is present. (Anexact adjustment is made usingsetscrew1).

12

K-AIRplus 743, 744, 745.

Max. 3,7 bar

Kair plus3

2

1

M6

5

4

502040

80psibar

3

4

1

e

2

9 8

3

57

wq

0

3

6

10.3 No blown air present

Cause:a) Pressure 2 set too low.b) Nozzle 7 blocked or encrusted with

limescale.c) Adjusting screw (“blown air“ valve) 6

closed.

Remedy:a) Adjust pressure 2 (see A 6.2).b) See 11. Clear nozzle 7 with a needle,

etc.c) Remove cap. Turn adjusting screw to

the right stop with screwdriver 3through the opening (“blown air“ valve)6. Press down the “blown air“ switchq and then turn adjusting screw 6 tothe left until the required amount ofblown air emerges.

13

K-AIRplus 743, 744, 745.

Max. 3,7 bar

Kair plus3

2

1

M6

5

4

502040

80psibar

3

4

1

e

2

9 8

3

57

wq

0

3

6

A 11 Replacing the turbine rotor

Unscrew handpiece 3 and lock nut 4from handle sleeve using special wrench 1for 744 and with a fork spanner 17 " for743.

Remove the rubber O-Ring 2 from thehandpiece tip 3. Remove the turbine rotor5 and rubber O-Ring 8 from the handlesleeve (0.

Clean the inside of the handpiece tip 3and handle sleeve (0 (with cotton buds orsimilar).

Fit new O-rings ! and 1 in the handpiecetip 3 and handle sleeve.

Insert new turbine rotor 5 in thhandlesleeve.

Pin 7 must be inserted into hole 9for fixing the air and water openings

6. Attention must also be paid to O-ringq; this must be present in the “water“ holew.

Press on lock nut 4 firmly and first screwon by hand. Then tighten with specialwrench 1 for 744 and for 734 with a forkspanner 17 " .

14

K-AIRplus 743, 744, 745.

1

17

2

3

2

3

4

5

7

6

8

9

0

8

9

0

qwqw

1

4

The CE-Declaration of conformity can be downloaded under www.kavo.com.

Guarantee conditions

Within the framework of applicable KaVo delivery and payment conditions, KaVo

guarantees proper function, freedom from flaws in material and manufacturing for

a period of 12 months from the date of purchase demonstrated by the purchaser.

In case of justified complaints, KaVo will honor its warranty with a free replacement

or repair.

The warranty does not cover defects and their consequences that arose or may

have arisen due to natural wear, improper handling, cleaning or maintenance, noncompliance

with operating, maintenance or connection instructions, corrosion, contaminated

media supply or chemical or electrical influences deemed abnormal or

impermissible in accordance with factory specifications.

The warranty does not usually cover lamps, light conductors made of glass and

glass fibers, glassware, rubber parts and the colourfastness of plastic parts.

The warranty expires when defects or their consequences can arise from manipulations

or changes to the product. Warranty claims can only be asserted when they

are immediately reported to KaVo in writing.

This notification must be accompanied by a copy of the invoice or delivery note on

which the manufacturing number is clearly visible. In addition to the guaranty, the

statutory warranty claims of the purchaser also apply with a warranty period of 12 months.

15

K-AIRplus 743, 744, 745.

16

K-AIRplus 743, 744, 745.

1/1

0.220.0989 kpl.

0.200.6515

32

1

M6

5

4

502040

80psibar

Max. 3,7 bar

0.620.4382

0.220.0078 Glas

0.224.2512

0.220.0995

0.489.3020

0.200.6181

0.220.0960

0.489.3021

0.620.19310.620.4542

0.200.63980.200.6187

0.620.44120.201.8290

0.200.04791.000.0491

0.200.6398

1.000.04261.000.0471

0.200.6056

Spare parts 745

17

K-AIRplus 743, 744, 745.

0.200.6162

0.553.6031

0.200.61740.200.6162

0.200.6208

0.200.0110

0.524.0842

0.553.1363

0.516.5680

0.200.6162

0.553.6031

0.200.61740.200.6162

0.200.6208

0.200.0110

0.524.0842

0.553.1363

0.516.5680

0.642.0352

0.510.0141

743 744

18

K-AIRplus 743, 744, 745.

0.734.3542

0.734.3332

0.734.3532

0.734.3552

0.201.8158

0.222.4131

0.220.6102

0.220.1459

0.201.8158

1.004.8475 kpl.

0.734.2082

0.516.5020

0.200.6008 2,7 x 1,50.200.6016 2,2 x 10.260.9635

19

K-AIRplus 743, 744, 745.

0.48

8.61

17"

RB "

02/0

0 G

B 0

1.27

-01.

29 /

18.0

4

KaVo Dental GmbH. D-88400 Biberach/RissTelefon +49 7351 56-0 Fax +49 7351 56-1488

Internet: www.kavo.com