THREE DISC SANDING MACHINE TRIO Operating Instructions Translation of original operating instructions for the three disc sanding machine TRIO www.laegler.com...
CONTENTS Introduction ..................................5 Features of the machine ..............................5 Description of the machine ............................5 Intended use of the machine ............................6 Protective devices ................................6 Machine configuration ..............................7 1.5.1 Basic equipment ................................7 1.5.2 Optional equipment ..............................7 1.5.3 Wearing parts and safety-related parts ........................8 Hazard warnings and safety instructions ........................9 Hazard warnings ................................9 General safety instructions ............................
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CONTENTS Changing the V-belt ..............................48 7.5.1 Removing the V-belt ..............................48 7.5.2 Mounting the V-belt ..............................50 Changing the sealing felt on the cover of the inner housing ................... 52 Changing the rubber plugs of the sanding plate pulleys ..................53 Regular inspection and maintenance work in accordance with accident prevention regulations ....
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TRIO - MAIN COMPONENTS Handle Wing nut of cleaning slide Pressure control sensor Dust separator On/off switch Filter housing Suction hose Dust bag box MultiClip for fastening the dust bag Disposable dust bag Transport holder Motor cable for switch Chassis Switch box Motor Additional weight...
INTRODUCTION Introduction 1.1 FEATURES OF THE MACHINE You have purchased a high-quality product from LÄGLER ® . We wish you a great deal Figure 1 depicts the TRIO with the main components designated. ® of success with your TRIO. All LÄGLER Take your time to become familiar with the machine.
INTRODUCTION 1.3 INTENDED USE OF THE MACHINE WARNING! The three disc sanding machine TRIO is suitable for dry sanding of wooden floors or cork floors in a dry environment. Additional RISK OF DEATH from electrical shock: milling discs are available for dry work on screed or other subfloors. The machine may never be used for wet Application fields processing operations of any kind!
INTRODUCTION 1.5.3 WEARING PARTS AND SAFETY-RELATED PARTS Check the condition of the wearing parts and safety-related parts mentioned below at regular intervals in order to be able to work safely and optimally at all times. Replace the following parts in case of wear and/or damage: •...
HAZARD WARNINGS AND SAFETY INSTRUCTIONS Hazard warnings and safety instructions 2.1 HAZARD WARNINGS WARNING! WARNING! RISK OF DEATH, RISK OF INJURY, RISK OF FIRE: RISK OF DEATH from suffocation and RISK OF INJURY: • Be certain to read the hazard warnings •...
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HAZARD WARNINGS AND SAFETY INSTRUCTIONS WARNING! RISK OF DEATH from unsecured load: • When transported in a car or the like, the machines and all parts must be secured against sliding! RISK OF EXPLOSION due to sparks while sanding or a high dust concentration in the air: •...
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HAZARD WARNINGS AND SAFETY INSTRUCTIONS WARNING! RISK OF FIRE from the overheating of the cable. • Only the following motor cables and power cables may be used: - Machines with motor for mains voltage 220 V or 230 V: Cables with three wires and wire cross-sections of at least 2.5 mm²...
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HAZARD WARNINGS AND SAFETY INSTRUCTIONS CAUTION! RISK OF INJURY and RISK OF PROPERTY DAMAGE from rotating tools and parts of the machine: • For all operating conditions of the machine only one operator is required. As a consequence, for safety reasons only one person must be in the working area while operating the machine! •...
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HAZARD WARNINGS AND SAFETY INSTRUCTIONS CAUTION! HEALTH RISK caused by noise: • Use hearing protection when conducting work that produces noise! Observe the applicable regulations and legal requirements in your country! RISK OF PROPERTY DAMAGE: • Remove the sanding plates and milling discs from the machine when the machine is not to be used, because otherwise - the sanding media or milling discs can cause scratches on the ground,...
HAZARD WARNINGS AND SAFETY INSTRUCTIONS 2.2 GENERAL SAFETY INSTRUCTIONS • Check your machines for damage! Before using the machines, you must inspect the safety devices carefully to ensure that they are working perfectly and as intended. Check whether the moving parts are working properly, that they are not sticking, that no parts are broken, whether all parts are in perfect condition and installed properly and whether all other conditions which could influence the...
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HAZARD WARNINGS AND SAFETY INSTRUCTIONS • Do not overload the machines! It works better and more safely in the power range noted. • Do not bend too far over the machine! Avoid unnatural postures. Make sure that you stay in a stable position and keep your balance at all times.
TECHNICAL DATA Technical data 3.1 DATA ON TYPE PLATE ATTENTION! In order to receive the correct spare parts from us, please specify in inquiries and spare part orders always the serial numbers of your machines! The type plate is located on the switch box of motor (fig. 2). The Fig.
TECHNICAL DATA 3.2 MACHINE DATA Manufacturer Eugen Lägler GmbH three disc Machine type sanding machine Machine name TRIO Serial number see type plate (fig. 2) Year of manufacture see type plate (fig. 2) Motor type single-phase AC motor Voltage 230 V 220 V 50 Hz 60 Hz...
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TECHNICAL DATA Running time after shut off < 5 sec. NOTE on noise emission: Dust emissions at workplace The values indicated are emission values (measured as per the testing < 0.2 mg/m³ requirements GS-HO-15 of German (0.0024 gr./cu.yd.) and must not represent safe workplace Social Accident Insurance DGUV) values as well.
COMMISSIONING Commissioning This paragraph contains instructions on how to put your TRIO machine into operation at the workplace. In order to prevent damage and malfunctions it is necessary to strictly stick to the sequence of steps indicated below. CAUTION! RISK OF INJURY and RISK OF PROPERTY DAMAGE: Fig.
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COMMISSIONING The changing of sanding media is described in: - Section 5.3.1, Changing the sanding discs - Section 5.3.2, Conversion to sanding screens - Section 5.3.3, Conversion to pads In order to work with milling discs please proceed as described in Section 5.4, Working with milling discs. CAUTION! RISK OF INJURY and RISK OF PROPERTY DAMAGE: •...
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COMMISSIONING If there is no dust bag attached to the dust separator, proceed according to Section 5.5, Changing the dust bag. Close the dust bag box (fig. 11, 1) and lock it by turning the two fasteners back to their downward position (fig. 11, 2). Fix the Velcro sealing tape around the bottom edge of the machine housing in such a way that the two loose ends meet on the rear side (fig.
COMMISSIONING 4.2 CONNECTING THE POWER CABLE WARNING! RISK OF DEATH from electrical shock: • Never connect the machine to hazardous electrical power sources! Only use safety sockets! Fig. 13 Insert the plug of the motor cable in the coupler • To protect yourself and the machine against faults in the of the extension cable (1).
COMMISSIONING 4.3 SWITCHING ON THE MACHINE CAUTION! RISK OF INJURY and RISK OF PROPERTY DAMAGE from rotating parts of the machine: • Make sure the sanding plates or milling discs are in place Fig. 15 The machine must not be switched on in a tilted correctly ( Section 5.2, Changing the sanding plates)! position!
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COMMISSIONING MACHINES WITH THREE-PHASE AC MOTOR (MAINS VOLTAGE 400 V) If the motor do not start by pushing the green button on the on/off switch (fig. 19, 1) and the light on the switch box shines (fig. 19, 2), the rotation direction of the motor is wrong. To change the rotation direction of the motor using the following procedure: Disconnect the motor cable from extension cable!
COMMISSIONING 4.4 SWITCHING OFF THE MACHINE Tilt the machine just slightly backwards using the black handle. Push the red button (0) on the on/off switch (fig. 22). Keep hold of the machine until the sanding plates or milling discs comes to a complete standstill. Fig.
WORKING WITH THE TRIO Working with the TRIO 5.1 GENERAL INFORMATION AND TIPS WARNING! The ideal range of usage for the TRIO is fine sanding with grits starting at 60 and intermediate finish sanding! RISK OF DEATH from electrical shock: The TRIO’s functionality offers the following advantages: The machine may never be used for wet •...
WORKING WITH THE TRIO 5.2 CHANGING THE SANDING PLATES Depending on the different types of work to be done you may have to change the sanding plates. 5.2.1 REMOVING THE SANDING PLATES Switch off the machine and pull the power plug out of the socket! Fig.
WORKING WITH THE TRIO 5.2.2 MOUNTING THE SANDING PLATES Mount the sanding plate of your choice by placing one of the three locking bolts into the hole of one rubber plug (fig. 28, 1) and then fitting the other two bolts into their respective rubber plugs (fig.
WORKING WITH THE TRIO 5.3 CHANGING THE SANDING MEDIA 5.3.1 CHANGING THE SANDING DISCS Switch off the machine and pull the power plug out of the socket! Release the clamping lever of the handle (fig. 24, 1), press the handle forward (fig. 24, 2) and pull the clamping lever back into its prior position (fig.
WORKING WITH THE TRIO 5.3.2 CONVERSION TO SANDING SCREENS Switch off the machine and pull the power plug out of the socket! Release the clamping lever of the handle (fig. 24, 1), press the handle forward (fig. 24, 2) and pull the clamping lever back into its prior position (fig.
WORKING WITH THE TRIO Remove the three sanding discs and flexible Velcro rings (fig. 32) and replace them by pads. Fasten the pads with a plastic plug (fig. 36). To remove a pad, grasp beneath it using both hands and pull this evenly off the sanding plate together with the plug.
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WORKING WITH THE TRIO Loosen the counter nut (wrench size 13 mm) on the top edge of the milling disc for the holder to be adjusted. Use the TORX screwdriver in the shaft of the thread to keep the adjustment screw in position (fig.
WORKING WITH THE TRIO 5.5 CHANGING THE DUST BAG WARNING! RISK OF FIRE from the formation of sparks while sanding: • Note the warning on the dust separator (fig. 43)! • The dust bag must always be removed from the machine Fig.
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WORKING WITH THE TRIO Pull the cover foil from the adhesive strip on flap near the opening of the dust bag (fig. 47, 1). Fold the flap over the opening of the dust bag and seal the bag (fig. 47, 2). ATTENTION! Dust-free sealing of the dust bag is only possible when the dust bag has been mounted without any wrinkly on the neck...
TRANSPORT AND STORAGE Transport and storage WARNING! RISK OF INJURY and RISK OF PROPERTY DAMAGE: When transported in a car or the like, the machines and all parts must be secured against sliding! RISK OF FIRE from formation of sparks while sanding: Always transport and store the machine without dust bag! RISK OF FIRE from spontaneous combustion: Oil or wax can lead to spontaneous combustion! Therefore,...
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TRANSPORT AND STORAGE Pull the suction hose from the neck of the upper part of the separator (fig. 53). Loosen the two cross grip fasteners at the side by which chassis is attached to machine housing (fig. 54, 1) and move the chassis backwards (fig.
TRANSPORT AND STORAGE 6.2 REASSEMBLY AFTER TRANSPORTATION When reassembling the TRIO after transporting it please proceed according to the following sequence: Roll chassis into attachment position so that the two fasteners can be homed in (fig. 55, 1). Tighten the two cross grip fasteners firmly (fig. 55, 2). Fig.
TRANSPORT AND STORAGE 6.3 STORAGE WARNING! RISK OF FIRE from formation of sparks while sanding: Always store the machine without dust bag! If the machine is to be stored for a longer period, make sure it is stored in a dry, frost-free room which is not subject to great fluctuations in temperature.
MAINTENANCE WORK AND REPLACEMENT OF WEARING PARTS Maintenance work and replacement of wearing parts WARNING! RISK OF DEATH from electrical shock and RISK OF INJURY from rotating parts of the machine: • All extensive maintenance work, especially on the electrical equipment, must be conducted by a qualified expert for safety reasons! •...
MAINTENANCE WORK AND REPLACEMENT OF WEARING PARTS Certain maintenance jobs ought to be performed from time to time, at the latest, however, when damage is established or the red LED of the pressure control sensor lights up. Use only LÄGLER ®...
MAINTENANCE WORK AND REPLACEMENT OF WEARING PARTS 7.2 CLEANING THE FILTER CARTRIDGE In general the machine’s filter cartridge should be cleaned after each dust bag change; at the latest this should be done when the red LED of the pressure control sensor lights up (fig. 60). If this happens while you are in the middle of a sanding job you may as well finish a half-trodden path first.
MAINTENANCE WORK AND REPLACEMENT OF WEARING PARTS 7.3 CHANGING THE FILTER CARTRIDGE WARNING! HEALTH RISK caused by dust: Since wood dust deposits can be released when the dust separator is dismantled, you have to wear a respiratory Fig. 63 Loosen the ring nut (1) and remove the cable plug protective mask (at least filter class P2) for all work on the from the switch (2).
MAINTENANCE WORK AND REPLACEMENT OF WEARING PARTS Remove the four cap nuts and washers on top of the dust separator (fig. 67) and lift off the upper part of the separator in one straight move (fig. 68). Lift the filter cartridge out of the filter housing (fig. 69). Clean it or replace it by a new one.
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MAINTENANCE WORK AND REPLACEMENT OF WEARING PARTS Put the washers on the screws which project out of the upper part of the separator and put the cap nuts back on (fig. 73, 2). Only place these on loosely, don’t tighten them. Now it is time to push the cleaning slide all the way down to centre the system (fig.
MAINTENANCE WORK AND REPLACEMENT OF WEARING PARTS 7.4 CHANGING THE TOOTH BELT ® Only use the original LÄGLER tooth belt (part number in Section 11, Spare parts TRIO). The tooth belt transmits momentum from the motor pinion to the three pulleys of the sanding plates; it is necessary to clean it regularly and to replace it in case of damage.
MAINTENANCE WORK AND REPLACEMENT OF WEARING PARTS 7.4.2 MOUNTING THE TOOTH BELT Push the tooth belt tensioner all the way back to the casing wall (fig. 79, 1). Insert the tooth belt with the geared side facing and engaging the pinion gearing with the flat side of the belt skirting the pulleys (fig.
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MAINTENANCE WORK AND REPLACEMENT OF WEARING PARTS Twist the counter nut to the clamping nut (fig. 83). Carefully fasten the two nuts (fig. 84). Put the cover back on in the proper position. The seal must be positioned evenly around the pulleys. Use two screws to hold it in place initially before replacing the other screws (fig.
MAINTENANCE WORK AND REPLACEMENT OF WEARING PARTS 7.5 CHANGING THE V-BELT ® Always only use original LÄGLER V-belts (part number in Section 11, Spare parts TRIO). If the V-belt shows signs of wear and tear it needs to be replaced. 7.5.1 REMOVING THE V-BELT Switch off the machine and pull the power plug out of the socket!
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MAINTENANCE WORK AND REPLACEMENT OF WEARING PARTS Loosen the two cross grip fasteners at the side by which chassis is attached to machine housing (fig. 90, 1) and move the chassis backwards (fig. 90, 2). Remove the screw which fixes the V-belt guard to the fan insert (fig.
MAINTENANCE WORK AND REPLACEMENT OF WEARING PARTS 7.5.2 MOUNTING THE V-BELT ATTENTION! Machines manufactured until 1994: Before placing the motor make sure that the tooth belt tensioner has not fallen out its guides! The tooth belt tensioner cannot be installed with the motor in place! Machines manufactured as from 1995: Fig.
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MAINTENANCE WORK AND REPLACEMENT OF WEARING PARTS CAUTION! RISK OF INJURY: During mounting of the V-belt take care of your fingers danger of crushing! Insert the V-belt guard into the slot at the motor and push it Fig. 100 Insert the V-belt guard into the slot at the motor, towards the motor (fig.
MAINTENANCE WORK AND REPLACEMENT OF WEARING PARTS 7.6 CHANGING THE SEALING FELT ON THE COVER OF THE INNER HOUSING ® Only use original LÄGLER sealing felts (part number in Section 11, Spare parts TRIO). If the sealing felt on the cover of the inner housing shows signs of wear and tear, it must be replaced.
MAINTENANCE WORK AND REPLACEMENT OF WEARING PARTS Tighten all eight screws equally tight. Remount the sanding plates or milling discs as described in Section 5.2.2, Mounting the sanding plates. The machine is now ready to use. 7.7 CHANGING THE RUBBER PLUGS OF THE SANDING PLATE PULLEYS Fig.
REGULAR INSPECTION AND MAINTENANCE WORK Regular inspection and maintenance work in accordance with accident prevention regulations The electrical operating equipment and machine parts must be inspected at least once a year by a qualified electrician with WARNING! respect to electrical and mechanical safety, then be repaired as required.
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REGULAR INSPECTION AND MAINTENANCE WORK EXCERPT FROM THE BGV A3 NOTE: § 5 Inspections ® • All LÄGLER machines and electrical (1) The employer must ensure that the proper condition of the e q u i p m e n t a r e s u b j e c t e d t o a n electrical systems and equipment is inspected electrical inspection as well as a 1.
CAUSES OF FAULTS Causes of faults This section shows you how to remedy possible malfunctions. If none of the measures listed here are successful, please contact WARNING! our service department, your retailer or your importer. RISK OF DEATH from electrical shock: 9.1 THE MACHINE DOES NOT RUN OR HAS Work on the electrical equipment is to SWITCHED OFF AUTOMATICALLY...
CAUSES OF FAULTS • The temperature switch in the motor has switched off the machine because - the power cables have a total length of more than 20 m (790”), - the power cables have wire cross-sections which are too small: at mains voltage 220 V or 230 V are the wire cross-sections smaller than 2.5 mm²...
CAUSES OF FAULTS 9.3 THE MACHINE RUNS BUT HAS NO OR VERY LITTLE SANDING POWER CAPACITY • Sanding plates: The sanding medium is incorrect or dull and must be replaced. Section 5.3, Changing the sanding media • Milling discs: The indexable inserts are dull or damaged and must be turned or replaced.
CAUSES OF FAULTS 9.4 THE MACHINE VIBRATES INTENSELY AND RUNS NOISILY • Sanding plates: The sanding media are not centred or not fixed properly to the sanding plates. This must be corrected correspondingly. Section 5.3, Changing the sanding media • Milling discs: The indexable inserts and/or holders are not mounted properly or not arranged symmetrical on the milling discs.
CAUSES OF FAULTS 9.5 THE MACHINE RUNS BUT CREATES A GREAT DEAL OF DUST • The filter cartridge in the dust separator must be cleaned. Section 7.2, Cleaning the filter cartridge • The cleaning slide of the dust separator must be pushed back into the dust separator until the limit stop.
CAUSES OF FAULTS 9.6 SANDING PROBLEMS (WAVES, STRIPS, GROOVES) • The floor was not vacuumed before sanding. The floor must be vacuumed thoroughly always directly before each sanding step. • The sanding medium is damaged or incorrect and must be replaced.
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NOTES TRIO 01.04.2015 English / Englisch...
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NOTES TRIO 01.04.2015 English / Englisch...
CIRCUIT DIAGRAMS Pressure control sensor P > Temperature switch Running capacitor Ha = Main winding Hi = A uxiliary winding 40 F F1 = Fuse Motor 1.8 kW H1 = Lamp 230 V / 50 CPS K1 = Contactor 230 V / 60 CPS S1 / S2 = Switch 220 V / 60 CPS, USA 10.06.1996...
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CIRCUIT DIAGRAMS 6.3 A Temperature switch P > Motor 2.2 kW 400 V / 50 CPS Pressure control sensor F1 = Fuse H1, H2 = Lamp K1 = Contactor S1 / S2 = Switch 01.07.2008 TRIO: Three-phase AC motor 2.2 kW / 400 V / 50 CPS EUGEN LÄGLER GMBH Phone: 0049 - 7135 - 98 90 - 0 e-mail: info@laegler.com...
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SPARE PARTS TRIO TRIO 01.04.2015 English / Englisch...
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SPARE PARTS TRIO Item Part number Description 900.16.10.100 Separator upper part 900.16.21.100 Opener, complete 900.16.23.100 Sealing brush 900.16.45.105 Filter brush 900.16.18.105 Filter cartridge 900.16.19.100 Protective cover 900.16.17.100 Cover lower separator, complete 900.16.25.105 Sealing 900.16.22.100 Ring 900.03.30.105 Rubber plug with hole 900.16.27.105 Screw, short 900.16.26.105...
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SPARE PARTS TRIO TRIO 01.04.2015 English / Englisch...
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SPARE PARTS TRIO Item Part number Description 900.01.10.200 Machine housing 900.01.42.100 Self-adhesive Velcro negative 900.01.50.100 Velcro seal 900.01.50.105 Velcro seal TRIO by the roll (50 m) 900.01.60.100 Angle 0127.1012.000 Spring washer 0912.1012.030 Screw 1481.0008.020 Spring type straight pin 7991.1008.025 Screw 000.20.20.121 Cross grip 000.20.10.121...
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SPARE PARTS TRIO TRIO 01.04.2015 English / Englisch...
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SPARE PARTS TRIO Item Part number Description 900.07.10.200 Inner housing 900.07.20.100 Pick up 3212.0060.202 Ball bearing 0471.0060.000 Circlip 7991.1008.025 Screw 6797.1010.000 Washer 0933.1010.065 Screw 000.10.10.061 Washer 900.67.00.200 Tooth belt tensioner, complete 000.31.25.061 Pressure spring 900.07.42.205 Bolt 900.01.20.200 Guide plate 7500.1006.012 Screw 7349.1010.000 Washer...
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SPARE PARTS TRIO TRIO 01.04.2015 English / Englisch...
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SPARE PARTS TRIO Item Part number Description 900.65.00.100 Motor, 230 V / 50 CPS / 1.8 kW 901.65.00.100 Motor, 230 V / 60 CPS / 1.8 kW 902.65.00.100 Motor, 220 V / 60 CPS / 1.8 kW, USA 905.65.00.100 Motor, 400 V / 50 CPS / 2.2 kW, three-phase current 0471.0020.000 Circlip 6885.0606.018...
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SPARE PARTS TRIO TRIO 01.04.2015 English / Englisch...
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SPARE PARTS TRIO Item Part number Description 900.02.10.200 Sanding plate, complete 900.02.12.305 Velcro ring 200 mm 900.02.13.205 Velcro ring flexible 200/125 mm diameter 900.02.23.205 Plastic pin 900.02.40.100 Milling disc TRIO, complete 900.02.42.105 Fastening bolt 0912.1006.014 Screw 0934.1008.000 900.02.43.100 Holder for indexable inserts 900.02.45.105 Carbide indexable insert (10 pieces per box) 900.02.47.105...
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NOTES TRIO 01.04.2015 English / Englisch...
SERVICE PASSPORT Service passport Please enter the serial number and the year of manufacture of your machine (see type plate) on the rear side of these operating instructions! Otherwise the service passport will not be valid! This service passport is a document. Make sure that all the tests and maintenance work carried out on the machine are confirmed by the servicing company here.