TRIONIC 5 Technical Supplement Issue D Rev1 Jan 2016

Contents. INSTALLATION Sectio n Topic 1

2 3 4 5 b 7

I I

Page

lntroduction. Services required.

1 1

Pre-installation checks. Tips for unpacking. Floor box installation. Wall box connections Connections to cart. Chair attached unit

1

2 6 6 6 8 't1

Commissioning the unit.

PROBLEM SOLVING a)

b)

Spray Controls

Water Bottles

d) e)

Tridac Syringe Circuit Boards Micromotor Scaler Air Circuits

h)

12 13 14 14 14 14 15

Circuit Description Water Problems

c)

0 s)

11

15-16

P.C.B. Component Layout

16 17

Usefull Spares List

1B

FlGURES

fig.1 fig.2 {i9.3 & 4 fig.S fig.6 & 7 fig.8 fig.9 & 10 fig.11 i9.12 fig.13 & 14 f

Options dimensions. layout diagram base base chairs circuit Layout

2 lnstallation 3 Unit 4 Floor and Wall box 5 Mains connection Wiring Cart Upright and Bas connections 7 8 Services Plan, Chair 9 Services layout, Chair 1O Unit connections to ECO 12 Water 17 P.C.B. Component

PARTS BREAKDOWN

Assembly Assembly Assembly Assembly

19 Head 21-21a Upright 22 Floor Box 23 Wall box Regulator Chassis and Loom.ECO19 24 Regulator Chassis and Loom.ECO.Next 25 26 Arm 27 Foot Control, lever 28 Foot Control, disc

Assembly type type Various Assemblies Piping diagram. Head

Piping diagram. Services and

29-30

FiC

31

32

1) TNTRODUCTTON.

INSTALLATION

This document is a technical supplement for the TRIONIC 5 DENTAL UNIT and provides inlormation on the installation, service and repair of the dental unit. For inlormation on how the unit functions, its controls, setting Turbine pressures etc., please refer to the Operating Manual. part No. 86-1017 issue 4. The TRIONIC 5 dental unit comes preassembled and fully tested, the only work required is fitting to the chair or installing the floor / wall box and connecting the services, the instructions for which are covered in this supplement.

2) SERVTCES REOUIRED Electrical Supply '. Air Supply :

230V ac 50Hz rated at 13 Amps. 5.5 bar (80 p.s.i.) Minimum. 6.9 bar (100 P.s.i.) Maximum. 50 Litres / minute at above pressures.

3) PRETNSTALLATION : NOTE: The mains supply to the equipment must be provided via a double pole isolating switch conforming to 8S1363-4 or IEC 61058-1 for creepage distance and air clearances for a mains transient voltage of 4kV. The most convenient location ol this would be on the wall adjacent to the exit door.

When the TRIONIC 5 UNIT is supplied as a CONTOUR package, serviceconnections are provided and are pre installed in the base of the chair. lf not supplied as a CONTOUR package, check that the Serviceconnections supplied are the most suitable for the surgery layout and with regards to the way the Unit will be used. Reler to figs 1 and 2 tor Unit dimensions and choice o{ Floor Box. All Tridac service connections have 15mm compression littings lor connecting the air and water services, if it would be more convenient, we have adaptors available to allow the use of other tubing types, as shown fig. 4 lf you wish to adapt them to other sizes, the thread in the adaptor 451496 is 1/8" B.S.P.

The control panel on the T5 unit Incorporates buttons for operation of a Tridac CSM spittoon, all functions of the ECO.Next/ECO19 chair together with operating light. When the unit is insialled remote from the chair, using a wall or floor box, an additional cable kit will be required (P/No. 22-1540) to enable their use. All cables have attached connectors that only need plugging together. The cart is supplied as standard with a flying lead and a quick connect fitting for the air supply. This method allows connection to existing floor boxes, wall outlets or within a cabinet. Other methods of connection are available as options and shown below.

The floor box shown, PlNo.22-1415, has been designed to take other equipment such as spittoons, and keep the hoses close to the chair keeping them out of the way of patients and staff. This floor box will only be supplied if specifically ordered. When the carl is to be installed with the services to the side of the surgery rather than under the foot of the chair, the cart can be ordered with a wall connection box part No. 22-1425 as an option.

INSTALLATION OPTIONS

Fig.

IRIONIC 5 CART wilh optional floor box,

TRIONIC 5 CART with optional Wall box.

Part No. 22-1415

Part No. 22-1425

Fig.1c

Fig. 1d

TR|ONlC 5 CART installed with ECO.NexUEC019 Chair

TRIONIC 5 MODULE installed with any Chair

4) flPS FOR UNPACKTNG. To remove the CART from the packaging, remove straps and open the top flaps. Remove any loose items and the centre cardboard insert. Remove the two boxes down each side together with the cardboard packing piece under the base. Stand the packing box on end and wheel out the unit, il is a good idea to leave the packaging around the hoses and unit top until after the services have been atlached under the base.

2

UNIT DIMENSIONS

Fig. 2

I

500

--

SIDE VIEW.

FRONT VIEW.

Shown with optional viewer.

Shown with optional viewer.

STANDARD WALL BOX.

STANDARD FLOOR BOX.

FLOOR BOX LAYOUT

Alr supply, 15 mm diameter co00er tube to B S.2871

Waler suppy I reqlired, 15 mm d areter

leave 90mm above lloor level

copper t!be to B.5.2871. leave 90mm above f oor ev€1.

.r.&

,,rtt.

Fig. 3

use 32mm : paslc

t0

s.5255

15

30mm eve .

INPORTANT, SECUEE WNES WITH CASIE

TIESTHROUGH SLOTS.

ELECIRICALSUPPLYCABLE,

Rated 13amps al240v50Hz May

Power ONIOFF Swilch

F x ng holes. 4

oll

Ducled exhalst cr vacuum source il req!{ed. use 32mm diameler plaslc ppe lo 8.5.5255. leave 15 1o 30mr above

enlerwlih n any tree area n the lloor box

lloor level.

WALL BOX LAYOUT YELLOW 30 _*

THANSPAHENT YELLOW 6O

'.-..-

Fig. 4 CONNECI IUBES FEOM HEAD LOOM AS INDICATED CONNECT WIBES FBOItl HEAD LOOI]! TO THESE

cLEA8. 30

IERMINAtS RE0.30

BLUE. 60

Stardard 15mm ccmpression Itting.

.ot supplied. Bemove c ve alth s efd.

FOOT CONTROL COUPLING

COMPRESSED AIR SUPPLY,

45-1496 30,1008

MAINS WIRING CONNECTIONS

WIRING DIAGRAM for TRIONIC 5 Floor Boxes P/No's 22-1406 &22-1415.

TB1

SW1

. Supply lnput terminal block.

Fn2

TB2. Connection & Output terminal block. Fm1. Mains Input fuse. Fm2. Transformer primary fuse,

SW1. Mains switch, double pole,

Fig.5a

TRFl .Translormer.

WIRING DIAGRAM for TR|ONIC 5 Wall mounted Control Boxes P/No's 22-1407 &22-1425. SW1

Fm2

TB1. Supply lnput terminal block, TB2. Conneclion & Output terminal block. Fm2. Transfolmer primary luse. SW1. lVlains switch, double pole. TRF1. Transformer.

WIRING DIAGHAM for TRION|C 5 / EC019 Chair Services. Qtifi

Reg/Valve Chassis, P/No's 22-1 497 & 22-1 537 TB1. Supply lnput terminal block. Fm1. lVlains lnput

,luse,

Fm2. Solenoid fuse. SW1. Mains switch, double pole.

S1. Air lsolating Solenoid. 52. WalerAir lsolaiirg Solenoid.

Distribution Chassis, P/No's 22-1 498 & 22-1 499 TB1. Supply Input terminal block.

T82. Chair connection. TB3. Auxiliary / Dental Light connection. TB4. Spittoon connection, (includestwo terminals for joining switch wires).

TB5. Drill Unit conneclion. Fm1. Ciair fuse. Fm2. Auxiliary fuse, Fm3. Translormer primary fuse. TRF1. Transformer.

5

5) FLOOR BOX TNSTALLATION FOR CART An appropriate lull size floor plan is enclosed with each unit, use this to mark the position of the lixing points and services required for the particular installation. lnstallthe appropriate services as specilied on the floor plan, fig.3. Remove both handles lrom the floor box. Using a screwdriver, open lhe cover retaining latch by rotating 114 turn anti clockwise and lift off the cover. Loosen the nut holding the ball valve or valves to the brackets and remove. Make sure that the 15mm pipes are 90mm above the f loor level and f it the valves in place, tighten the compression fiitings fully when you have lined up the valves. Place the floor box chassis over the valves and fix it to the floor with suitable screws, Pull the valves upwards into the slots in the brackets and tighten the nuts to secure them in position. Feed the

mains supply cable through the cable clamp and connect to the mains input terminal block marked 24OY ac INPUT, if necessary, puncture the membrane in the grommets to pass the cable Jrom one side to the other. Feed the end of the service hose (without connector) through the hole in the floor box and snap the bush into place. Connect the green and yellow earth wire together with the red and white wires to the terminal block marked 24V ac OUTPUT passing them through one of the grommets, refer to wiring diagram fig.Sa and floor box layout fig.3. Before connecting the yellow air tube to the elbow on the valve assembly make sure that the end of the tube is cut clean and square and is without scratches or scuff marks. To fit, press the tube f irmly into the f itting a distance of approximately 15 millimetres.

6) WALL BOx CONNECTION for MODULE Fix the control box to the wall or cabinet end panel utilising the three keyhole slots in the back

panel, leave sulficient room below the box for the connections. Make the AIR SUPPLY connection using the fittings supplied or by other means, to the 1lB B.S.P. isolating valve. Feed the mains supply cable through the cable clamp and connect to the

mains input terminal block marked 240V ac INPUT in compliance with relevant regulations.

Pass the service loom through the chassis and snap the bush into place. Connecl the pipes as indicated in fig 4 and retain with the sleeves. The foot control coupling will be easier to connect pipes to if it is removed from the chassis, il is held in place by a snap-in bush. Feed the wires lrom the service loom through the grommet and into the transformer housing. Make a safe connection to the terminal block marked 24Yac outpul.

7) CONNECTIONS TO CABT. Raise the unit to its full height and remove the cover on the stand upright. Decide which side of the unit the Joot control loom is to exit from and lay the unit down on the opposite side, use some protection on the {loor to prevenl damaging the paint work. Remove the four screws holding the undercover in place and put to one side. Feed the end of the service loom up through the base into the upright and locate the outer sleeve in the slot in the casting as shown in fig.6. Unpack the foot conlrol, feed the coupling up through the base and screw onto the connection in the stand upright, see fig.7. Choose either the short, medium, or long route for the lead, see fig. 6, to give the most suitable working length oJ loot control. Take the lead out through ihe chosen exit and replace the undercover, securing with the four screws. The unit may now be stood upright and yellow air tube connected to the lower right hand regulator, cutting back the length of tubing as necessary. Plug the low voltage connector onto the connector pins located near the top left hand side of the upright, see fig.7, it is important that the cable is secured to the bracket with a cable-tie to prevenl accidental disconnection in use.

CART CONNECTIONS The length of the Fool Controi lead may be varied depending which route is used.

ii

All routes mayexitlolhe left or righlof the base. SHOBT BOUT: [,IED!UI.J

il ii

ROUIE

LONG ROUTE

ti 11

r1

ll ri

CO[/MON BOUTE

lladercover.

Seryrces and Foot Coalrol Lead enler through base lor conneclion in Sland Uprghl.

VIEW ON UNDERSIDE OF TRIONIC 5 BASE ASSE[/BLY SHOWING FOOT CONTHOL AND SEHVICE ENTRY POINTS. The undercover has been parlially clt away 1or clarity.

LOW VOLTAGE CONNEC1OR Seaure in place with cable telhl0uqi hole 10 orevent acc denlal d scorneclron.

FOOT CONTHOL COUPLING Llae u! prns wdh noles and lighlen the nul

irrmy io ensure 1 seais.

Fig.7

SEBVICES ENTSY POINI

8) CHArR ATTACHED UNIT The position of the services within the base of the chair are fairly critical, in that they need to be accessible for servicing. They also need to be able to accommodate the movement from the raising and lowering of the chair, our suggested layout is shown in figs. B and 9 ln most cases, the chair will have been supplied from our factory, already fitted with the unit arm assembly, Lower Loom, Transformer Chassis and Regulator / Valve Chassis. Feed the loom on the unit head, down through the tubular arm assembly and altach the head with the screws supplied. Make a safe and compliant connection ol the mains supply cable 1o the mains terminal block located on the front left hand side of the chair. The double pole ON/OFF switch built into the base of the chair will isolate the whole unit, chair, T5, spittoon and light if fitted. DO NOT connect the Air or Water at this time. With the electric now connected, raise the height of the chair and remove the undercover on the pantograph section. Now disconnect the electrical supply before continuing. Pass the loom through the hole in the unit mounting bracket, loop round and connect to the connection chassis making sure thai the tubes match colour for colour and the plugs and sockets for the wiring are attached and secure. See fig.10. Pass the Foot Control hose through the hole in the base of the chair and screw onto the coupling as shown. Replace the undercover on the pantograph after the unit has been tested. lf a spittoon is to be fitted to the chair, this should be done belore continuing. The AIR and WATER connection tubes, YELLOW and GREEN respectively, that are supplied with the chair, have isolation valves attached to them. lt is important that these are used as they incorporate screen {ilters to protect the shut off solenoids. The tubing may be reduced in lenglh if required. To remove it lrom it's fitting, push both the collar and tube into the fitting at the same time, then whilst holding the collar in, pull out the tube. Beduce the tube to the required length making sure that the end of the tube is cut clean and square and is without scuff marks. To fit, press the tube lirmly into the fitting a distance of approximately 15 millimetres.

O] AII SEBVICES SHO!]N MAY BE BEOUIRED, THIS WILL DEPEND ON THE EO!]PMEN] BEING E NEDAN! I1'S SPECiFICATION,

ite are u€ble b pslbon he seryces as sio!n, p ease kep in frrd he bi ovlQ l The *asG

ad setm ine. i appl[aue, shou]d be pcitomd so sat hey l6p lound and no udo s!?ln s pui on fre lbirg

as h€ char E ra*d ad l@ ered also hd hel mav need b be acceswd at sm€ rme il fre tutu re lor cLeanr.q lfp6es.

Theseruicevalvesalsoneedactrss Ttuy*illnedclcsinQbsetocese ncorporaEdsoeenilErs The trsiton sno{n lor he ,cilno ls be m61 suibble hr corect on b s€ l€ m nal bloi !!t il could be pGtuoneo any,sh ere

All rclevantrllmbiru and elebcal retulalonsare

b be

frE FItrINGS SIPPLIEDY(TH IH]'AC EOU PI/ENT ABESU]TABLE

FON

CONNECTIXG TOTHE FOLLOWLNG SEBVCE L]NES . wasr€ aMvacuum llres in 32mm daslcpF b S 5255 Ai aMrater ines in 15mh b B.S 2871

cepr!k

I

Theelectica supplynrustleraEdl3ampai2aovois50Hz

1 fJasieouuet.32mmdiamelerpaslcprpetogSS2S5.

eaveateast25mmaboveloorlevel

2 y/aler supp y, 15 mm d ameleraopper tube to B.S 2871 leave atleasl 75mm above llocrlevel

3.Ar supply 15mm diametercorperlubelo 8.S.2871 leave alleaslTSmmaboveiloorlelel.

{ Eletr6l s!9!ly. raled l3amp @ 240volls 50Hz leave a 500mr englh olcable 5 Slction sourc€ I required use 32mm diaoererplaslc pipe to B.S 5255 leale at easl 25nm above ,loor level

FFONi EME OF APEBT!RE ]N BAS: OF CHAIB

Fig.8 8

SERVICES LAYOUT FOR ECO19 CHAIR

NOTE r-

THE UPPEB SOLENOTD IS FOR WATEB.

THE LOWEB FOR

rrB. I

CHAIR FIXING HOIES

Fig.9 N1AINS FUSE

l3amp MAINS ON / OTT SW|TCH

SERVICES LAYOUT FOR ECO.next CHAIR CHAIR F XING HOLES

il,,IAINS ON / OFF SWITCH

NoTE:' THE UPPEB SOLENOID

IVAINS FUSE 1S

rOR WATEB. THE LOWER SOLENOID IS FOB AIR

Fig. 10 9

13amp

9) COMMTSSTONING THE UNIT. Remove the remaining packaging from around the head of the unit and hang the hoses in their respeclive holders, do not attach any instruments at this time. Fill both bottles with clean tap water and fit to unit. Turn on the air and electricity supply at the chair or services box, and make a quick check for air or water leaks. There should be no need to adjust any of the regulators in the unit as these were set at the factory, the Turbine / Airmotor outlet pressures were set to suit the test handpieces at the factory and will thereJore need checking and adjusting to suit the particular instruments thal will be used by the operator. The pressures should be checked using an appropriate gauge located between the hose and the handpiece, the adjustment being carried out by means of the slotted screw on the top face of the corresponding control block, see fig.9 in the operating manual.

Press water source button A (item 6 on panel) to reset the internal circuitry and purge the air from allthe waler lines as described in the Operating Manual.

Check all the instruments and controls to ascertain that the unit is fully functional and that there are no air or water leaks before replacing the unit and floor box covers. Place the mat and instrument trays on the unit together with any loose parts such as autoclavable key, syringe nozzles etc. lf possible, instruct the operator on how the unit works and on the best practices for keeping the equipment in good working order.

PLEASE DON'T FORGET YOU MUST leave the Operating Manual wilh the customer for luture reference, THANK YOU.

PROBLEM SOLVING This section provides a detailed description ol various faults and their symptoms, it is in addition to information supplied in the operating manual but should be read in conjunction with it.

lT lS ESSENTIAL that the compressor supplying the unit is able to continuously provide air with a minimum pressure of 5.5 mbar at all times or there may be insufficient supply to run some inslruments at their optimum setting. This could also have an affect on ihe opening of the waler valve. NOTE: The regulator at the input to the unit is set to specification (80 psi / 5.5 mbar)

Water System The unit has been conligured to Switch between bottle A and bottle B at will, this provides the user with continuous uninterrupted use as each bottle can be replenished while still using the other. Alternatively, one of the bottles may be filled with a suitable medicant for root work or 1or flushing the instrument hoses after use. The reservoir bottles are screwed into special 'caps' housed in the unit head. These caps are fitted with a restrictor valve, so that the bottles may be removed, even when pressurised by the air supply. Escape oJ air is limiled to a small hiss. The hiss will be heard to die away as the bottle is refitted, giving assurance of a seal, Do Not over tighten. Note thal air pressure building up in the bottle makes it easier to handle, so slowly refitting is an advantage.

11

Description of circuit Regulated air pressure is fed to both bottles at the same time thus providing water to the selection solenoid. With bottle A selected on the control panel, the solenoid is NOT energised and the water flows from bottle A to the water valve and syringe outlet. When bottle B is selected on the conlrol panel, the solenoid is energised and allows the water from bottle B to pass to the waler valve and syringe outlet. Selecting water on the foot control sends a high pressure air signalto the water valve causing il to open, this water is then fed to all the control block via the connection block on the end. Flemoving an instrument f rom it's holder causes the diaphragm on that control block to relax allowing the water to pass through the flow control valve and anti retraction valve before reaching the selected

instrument. Pressing the llush valve on the side of the unit, sends a high pressure air signal to the water valve, via a shuttle valve, this opens it as described above, allowing water through to the instrument. This flush system, allows only the instruments selected to be flushed and without having to use of the foot control. The diagram below shows the layout of allthe components in the water circuit.

Fig. 12

Water circuit

FLUSHVALVT HIGH PRESSUB: AIB SUPPLY

0."...:...:..."..."...:'

-" :. :::"".:..".

LOW PHESSUBE AIR SUPPLY

WATEH SELECTION SOLENOID

WATER CONTROL VALVE

iI

I

ANII. HTTHACIION VALVE

HOSE REIAINING LATCH

DIAPHRAGM RELMED ALTOWS WATEH IO PASS

r'ilcFo luBt HEslHtc"r0H

INSTRUMENT SELECTFD. VALVE OPEN

BOTTLE "A

1

BOTTLE T

a)Water Problems

Dripping Handpieces Symptom:- Handpieces that run on or drip alter slopping, but eventually do stop. The most likely cause will be due to air in the water lines. This could be because:i) The equipment has just been installed, and not yet flushed through. ii) One or both bottles have run dry, causing air to get into the syslem. iii) Air that was naturally dissolved in the water, has been freed and formed into bubbles. This is only likely after a period of non use, i.e. weekend or holiday. iv) The DCI syringe connector faulty or not engaged fully, allowing air to get into the system.

v) The barb or tube on the underside ol the bottle cap is not sealing. (Allowing the pressurising air in the bottle to enter the water system). This will cause air bubbles to reform soon after flushing the system. Symptom:- Handpieces that run on or drip after stopping, and continue to drip non-stop. vi) The air operated water valve (located to the left of the solenoid valve) is not shutting off properly. This may be due lo dirt on, or damage to the valve seating. To test, remove the output tube from the barb and replace il with a spare piece of tube, operate the foot controlwith water selected. lf the waler sucks back from the end of the tube and then stops without any furlher movement, the valve is O.K. lf water creeps along the tube, remove the input fitting complete with barb, then remove the spring and ball, clean and re-assemble.

Symptom:- Handpieces that drip even after they are replaced in their holder. vii) The Multibloc diaphragm is not sealing fully across the middle, this allows the high pressure control air to enter the water channel to the instrument hose, pushing the water out. It will stop when it has emptied the hose. A delay in the water starting (due to having to refillthe hose) is an indication that this is the cause. Smearing a little silicone grease in the middle of the diaphragm, on the cap side, may help to seal it. Take care to do up the screws evenly and firmly but DO NOT over tighten them.

Other water problems. Symptom:- No water at handpiece. viii) Selected bottle is empty. Refill or select other bottle. ix) Water not selected on foot control. Operate appropriate butlon or lever on foot control. x) Conltol valve on side of unit closed. Turn anti-clockwise to increase. xi) Spray air valve on control block open too far. Too much air may prevent the water from exiting the handpiece, see spray air controls, i) below. Turn clockwise to reduce. xii) Tube in water bottle sucked onto the inside face. Only likely when the tube has been

replaced. Cut notch or hole in the end of tube.

13

b)Spray Air controls The Trionic has separate spray air supply for each instrument which is needed for all instruments that do not 'bleed off' the drive air (virtually all low speed instruments come into this category). The spray air is taken trom the pilot air to the water valve. The amount of air to the instruments is controllable by the spray air valve built into each control block. Proper use of the spray air valve will prevent problems with i) lntermittent or absent spray on high speed turbines. ii) Spray run-on on low speed instruments. i) Mosl turbines DO NOT need any spray air at all, as the water is made into a spray but the drive air. Pulsing or slowly diminishing water spray are typical symptoms of too much spray air. ii) When air and water are mixed in the hose or instrument, as with a Micromotor, having at least a small

supply of air to the spray circuil will prevent run-on or dripping.

c)WATER BOTTLES Selection Solenoid Default condition is Bottle A i.e. if power or solenoid fails, water is supplied by bottle A

Solenoid is energised for bottle B. lf bottle B does not get selected, yet the light is displayed, selecl A, then B again. lf there is no change, suspect a stuck plunger in the solenoid. DO NOT DISCONNECT THE SOLENOID WIRES WITH THE POWEB ON. A sticking plunger can be caused, either by particles in the valve or scale build up on the plunger. To disassemble, turn power off to the unit, exhaust all air pressure and remove the solenoid lrom it's retalning clip. Remove the tube and barb at the top of the solenoid, !.e. coil end. Unscrew retaining nut holding coil in place and then unscrew the hexagon part lrom the main body. lnside is the plunger and spring, clean allthe parts, inside and out. Remove any scale build up on the plunger, this can be done by rubbing on a piece of ordinary plain paper. Re-assemble making sure that the spring and plunger are the right way round and that it moves freely within it's housing before reattaching to the main body. No sealant is required if the'O' ring is still in place.

d) SYRINGES DCI Syringe The most common reasons lor water dribbling or wet air are: i) Dirt under seating. Strip and clean, replacing the valves if necessary. Flush syringe through with water for a few minutes before reassembly'

ii)The smalt nozzle'O' ring is worn or nozzle damaged: Beplace. The DCI syringe {itted, is of the detachable, autoclavable type and incorporates shut of{ valves in the connector. They consisl of "O' rings sliding across a face and can give rise to problems, such as leaks and air getting into the water. lf this happens, you may notice air bubbles in the water bottles.

e) CIRCUIT BOARDS ALWAYS turn the power olf when installing or removing circuit boards. ALWAYS check that the ctrcuit boards, pa(icularly the Bien Air micromolor converter are properly installed before applying power. lt can work loose in transit. Air-electric switches are consiructed using a'Clip On'actuator. This avoids having to pulltubes from barbs when removing circuit boards.

14

The wire clip picks up on the microswitch mounting holes to ensure that the distance between switch button and acluator is accuralely maintained. ENSURE that the clip extends right through all switches and actuator body when replaced.

f) MrcRoMoToR MX2 Basic The MX2 Basic is a brushless electric micromotor that requires little maintenance. The Bien-Air conlrol board is built into a special plug in P.C.B. that allows the user to set four preset maximum speeds which are indicated by LED's on the front panel. Any failure to select these will most likely be due to a breakdown or poor connection between the motor controller and the control panel. Check all connections and the condition of the control panel ribbon cable, look lor signs of creasing or waler damage. lf a fault is suspected in the control panel, disconnect the two 7 way ribbon cables, i.e. the switching ones, and using a continuity meter, check that the circuit in made between the 'C' on the left hand ribbon and the M+ and M- on the right hand ribbon, when the respective switch is pressed. Conversely, making a momentary connection between these points on the sockets will bypass the control panel and test the circuit board for operation. The motor should increase or decrease in speed, assuming that the motor is selected and the foot control is set to maximum. The foot control varies the speed of the motor by means of air pressure on the Bien-air transducer. lf there is insufficient pressure, the motor will not obtain it's maximum speed of 40,000rpm. The correct pressure was sel at the {actory and should only need adjusting if someone has altered it. To check, fit a suitable pressure gauge to the output on the micromotor control block, this is the small BLUE tube that goes to the P.C.B. With the motor selected and handpiece altached, operate the foot control to give maximum speed. This should give a reading of 4 bar, i{ adjustment is required, regulate by means of the slotted screw for the cooling air.

g) SCALER. NSK Varios 170 IT IS IMPORTANT NOT TO SWAP THE TWO HANDPIECE WIRES, THE POLARITY DOES MATTER (See operating instructions, section 7.2) The NSK control board is built onto a special plug in P.C.B. that allows the user to set eight preset power settings which are indicated by LED's on the front panel. Any failure to select these will most likety be due to a breakdown or poor connection between the scaler controller and the control panel. Check all connections and the condition of the control panel ribbon cable, look tor signs of creasing or water damage. lf a faull is suspected in the control panel, disconnect the two 7 way ribbon cables, i.e. the switching ones, and using a continuity meter, check thal the circuit in made between the 'C' and the S+ and S- on the lelt hand ribbon, when the respective switch is pressed. Conversely, making a momentary connection between these points on the sockets will bypass the control panel and test the circuit board for operation. The scaler should increase or decrease in power accordingly, assuming that the scaler and foot control are selected.

Handpiece precaution DO NOT KNOCK or DROP the handpiece on its end

Water Coolant It is necessary for water to be selected at the foot control for the scaler to work. This prevents running without water which would produce overheating of the handpiece. Note. On some units, when requested, the scaler start up is switched by drive air so that it can run

with water spray off. ln these cases it is important that the scaler is properly seated in its holder and the instrument holder (bleed) valve is functioning properly or the scaler could be running (dry) while another inslrument is in use.

15

Scaler operation is initiated by : i) Lift the instrument from its holder. Pilot air to holder and first microswitch on scaler chassis, decay's 1o zero through the bleed valve, allowing microswitch to change over. ii) Operate foot control with water selected. Pilot spray air is switched to air op. water valve & 2nd microswitch on scaler chassis and slarting scaler operation.

Tip attachment / detachment To prevent damage to the thread during use, tighten the tips FIRMLY with the tool provided. DO NOT OVER TIGHTEN, as during operation, ultrasonic action can cause further tightening which will result in great difficulty of removal.

h) ArR crRcurTS IT IS IMPORTANT TO SET THE PHESSURES OF THE T5 REGULATORS TO THE FACTORY

VALUES:- H.P. AIR REGULATOR - B0 P.S.l. (5.5 mbar) L.P. AIR REGULATOR - 40 P.S.l. (2.7 mbar) The H.P. air affects a number of aspects, INCLUDING MICROMOTOR OPERATION. This is because the unit has been set up with B0 P.S.l. before setting the M/Motor cooling air and maximum speed.

ll80 P.S.l. is not available, then AT LEAST 70 is required. Bien- Air circuit must be re-trimmed accordingly. T5 regulator must be SET to 70 - not just leit 1o give out whatever is coming in from comp.essor. Adjust turbine handpiece and airmotor running pressures by litting a handpiece gauge and using the CONTROL BLOCK REGULATOR SCREW.

Bleed Valves Bleed valves can be moved {orward in the inslrument holders to compensate ior wear. The grub screw is accessible from the end face ol the instrument holder after the latter is removed. Note that grub screws can mark the case. They tend to pick up on this mark if only slight adjustment is attempted. Flotate the body in the holder to present a Jresh surface, do not OVER TIGHTEN the grub screw.

They can also be adjusted. They work like this :The spring in the plunger pushes a rubber disc against anozzle to blank off air input. The spring allows over travel. When the instrument is lifted, the plunger moves forward and the rear spring pushes the disc clear of the nozzle, allowrng air to leak away. Adjust by slackening the lock nut. With air on, and the plunger relaxed, screw in the nozzle untilthe air leak gets noisy. (Noise is caused because the disc is now close to the nozzle and the air is squeezing out). Now back off the nozzle by unscrewing by half a turn and nip up the nut. The air should be shut off when the plunger has moved about hall its travel, leaving plenty of overtravel. The valve should be set in the holder to give a positive shut-off, but not so far Jorward as to cause tightness of the instrument or excessive force on the plunger and disc. tf the disc becomes over-worn, a new bleed valve will be required.

16

Foot control adjustments Run a turbine with a handpiece gauge fitted. Slacken lock nut on adjusting screw and adjust the regulator to give full pressure at about 90% of its movement. Select water. Set adjuster screw for pilot valve to give spray staft up early in lever movement, coincident with turbine just beginning to run. Now check valve by leaving foot control lever not operated and open the valve by pushing with a screwdriver. Release valve and exhaust should sound shorrt and positive. A'splashy' or long exhaust time should be corrected by backing off the adjusting screw a little more. Move {oot control lever in 'reverse' direction. The reverse pilot should operate early in the cycle (The reverse switches on the micromotor circuit board, if fitted, must operate BEFORE the micromotor starts. Check exhaust note as lor water pilot and adjusl accordingly. Re-check foot control when reassembled. Fitting the cover can move the pivot pin and put

adjustments out.

P.C.B. COMPONENT LAYOUT

Fig. 13

S0LEN0ID Ior LISTA Curing Light

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B bbon Caole Connector tor Scaler and Spittoon swilches

:

Micro-Motor Control Board,

Scaler Control Board.

lVX2 BASIC P/No. 20-1087

For NSK 170 Varios

(P.C.Board. 20- 1 085 +

PlNo. 20-1064

B/A control. 20-1086 )

Ribbon Cable Connector for ail other swlching functions

17

-[ Vl lV:

SPARE PARTS LISTED BELOW ARE THT MORE FREQUENTLY REQUESTED SPARE PARTS

AND ACCESSORIES

For a more detailed breakdown of the Trionic 5 unit assemblies see the following pages

Item

Mains inputfuse (floor type services box). Mains input fuse (wall type conlrol box) Transformer primary fuse Motherboard fuse F1 Motherboard fuse F2 Micromotor board fuse Fl Scaler board fuse F1

FibreopticboardfuseFl lnstrument holder valve Diaphragm 'O'Ring Mat Adjuster Key

Part Number

Description/Comment

101025

13 Amp.250volts 1" x1l4" Ceramic, BS 1362

10 1309

T 1 A L. 250 v 20 mm x 5 mm, IEC 60127-2 sht 3

Ditto

Ditto

1245

10 P2A

T 5 AL. 250 v 20 mm x 5 mm IEC 60127-2 T 1.6 AL. 250 v 20 mm x 5 mm IEC 60127-2 T 5 AL. 25O v 2A mm x 5 mm IEC 60127-2 T 1 .6 AL. 250 v 20 mm x 5 mm IEC 60127-2

22 1199

T500mAL.250v 20mmx5mmlEC60127-2 Air'bleed valve'

1A

10 1220

10 1245

101186

30 1061

Under Cap on Control Block. Fitted in Bottle Cap Under lnstrument TraYs Autoclavable, Spray Water Valves

30 t086

30 1142 45 1587

Borden Fitting lnstrument Hose 60 1 131

3 Hole Grey Silicone

Syringe Hose Syringe Nozzle

60 1 157 60 1158

DCI SYringe DCI Syringe, Metal

MidWest Fitting Hose Fibre-Optic MidWest Hose

60 1 175

60 1176

Grey Silicone Grey Silicone

NSK Varios 170 std NSK Various 170 Lux

60-1 60-1

181 182

Grey Silicone Grey Silicone

MX2 Micromotor Hose MCX Micromotor hose

60 1 183

Grey Silicone Grey Silicone

Water Bottle 112 Ltr. Syringe Service Kit

70 70

60 1184

1'156 1190

18

DO NOT use other types DCI Syringe, lncl. 'O' rings, valves and tool

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