Clarke FOCUS II BOOST L20 Service Manual
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Clarke FOCUS II BOOST L20 Service Manual

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See also: Operator's Manual
READ THIS BOOK
LEA ESTE MANUAL
LISEZ CE MANUEL
Form No. 9097067000 - 04/2008
Operator's Manual
Libro de Instrucciones
SERVICE MANUAL
Manuel d'utilisation
EN
English (2 - 33)
Español (34 - 65)
ES
Français (66 - 98)
FR

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  • Page 1 Operator’s Manual Libro de Instrucciones SERVICE MANUAL Manuel d’utilisation READ THIS BOOK English (2 - 33) Español (34 - 65) LEA ESTE MANUAL Français (66 - 98) LISEZ CE MANUEL Form No. 9097067000 - 04/2008...
  • Page 2 ENGLISH TABLE OF CONTENTS SERVICE MANUAL - FOCUS II L17 - S20 - L20 - L20 Cyl. - BOOST ® ®...

  • Page 3: Table Of Contents

    ENGLISH TABLE OF CONTENTS GENERAL INFORMATION ............................5 CONVENTIONS..............................5 MACHINE.LIFTING..............................5 MACHINE.TRANSPORTATION..........................5 OTHER.REFERENCE.MANUALS.......................... 5 SAFETY.................................. 5 SYMBOLS................................5 SYMBOLS.SHOWN.ON.THE.MACHINE........................ 6 GENERAL.INSTRUCTIONS........................... 6 TECHNICAL.DATA..............................8 MAINTENANCE ................................9 SCHEDULED.MAINTENANCE.TABLE......................... 10 MACHINE.NOMENCLATURE..........................11 SOLUTION/CLEAN WATER SUPPLY SYSTEM ...................... 1 SOLUTION/CLEAN.WATER.TANK.AND.SUPPLY.SYSTEM.CLEANING............. 13 SOLUTION.FILTER.CLEANING...........................
  • Page 4 ENGLISH TABLE OF CONTENTS RECOVERY WATER SYSTEM ..........................28 RECOVERY.WATER.TANK.AND.VACUUM.GRID.CLEANING,.AND.COVER.GASKET.CHECK......28 SQUEEGEE.CLEANING/CHECK/REPLACEMENT.AND.SQUEEGEE.BLADE.REPLACEMENT....... 29 VACUUM.SYSTEM.MOTOR.FILTER.CLEANING....................30 VACUUM.SYSTEM.MOTOR.ELECTRICAL.INPUT.CHECK................. 31 VACUUM.SYSTEM.MOTOR.CARBON.BRUSH.CHECK/REPLACEMENT............32 VACUUM.SYSTEM.MOTOR.DISASSEMBLY/ASSEMBLY................... 33 SQUEEGEE.SPRING.CHECK/REPLACEMENT.(All.models,.with.aluminium.squeegee)........34 TROUBLESHOOTING............................35 DRIVE SYSTEM ................................ 6 MAXIMUM.SPEED.POTENTIOMETER.DISASSEMBLY/ASSEMBLY. (for.FOCUS.II.L17.-.FOCUS.II.L20.-.FOCUS.II.L20.Cyl..-.FOCUS.II.BOOST.L20)..........36 DRIVE.SYSTEM.MOTOR.ELECTRICAL.INPUT.CHECK. (for.FOCUS.II.L17.-.FOCUS.II.L20.-.FOCUS.II.L20.Cyl..-.FOCUS.II.BOOST.L20)..........37 DRIVE.SYSTEM.MOTOR.CARBON.BRUSH.CHECK.AND.REPLACEMENT. (for.FOCUS.II.L17.-.FOCUS.II.L20.-.FOCUS.II.L20.Cyl..-.FOCUS.II.BOOST.L20)..........

  • Page 5: General Information

    – All covers are closed. – The ignition key is removed. – The machine is securely fastened to the means of transport. OTHER REFERENCE MANUALS The.following.manuals.are.available.at.Clarke.Literature.Service.Department: FOCUS II:.User.Manual.-.Form.Number.9097066000 SAFETY The.following.symbols.indicate.potentially.dangerous.situations..Always.read.this.information.carefully.and.take.all.necessary. precautions.to.safeguard.people.and.property. SYMBOLS DANGER! It indicates a dangerous situation with risk of death for the operator.

  • Page 6: Symbols.shown.on.the.machine

    ENGLISH GENERAL INFORMATION SYMBOLS SHOWN ON THE MACHINE WARNING! Carefully read all instructions before performing any procedure. WARNING! Do not wash the machine with direct or pressurized water jets. WARNING! Do not use the machine on slopes exceeding the specifications. GENERAL INSTRUCTIONS Specific warnings and cautions to inform about potential damages to people and machine are shown below.
  • Page 7 ENGLISH GENERAL INFORMATION WARNING! – Always protect the machine against the sun, rain and bad weather, both under operation and inactivity condition. Store the machine indoors. – Do not allow to be used as a toy. Close attention is necessary when used near children. –...

  • Page 8: Technical.data

    ENGLISH GENERAL INFORMATION TECHNICAL DATA Model FOCUS II L17 FOCUS II S20 FOCUS II L20 FOCUS II L20 Cyl. FOCUS II BOOST ® Working.Voltage 24.V.DC Standard.Batteries.(2) 12.V.-.130.Ah@20hr.Wet Optional.Batteries.(2) 12V.114.Ah@20hr.rating.AGM Drive.System.Motor 0.3.hp.(200.W) — 0.3.hp.(200.W) 0.to.3.5.mph Determined.by.brush. 0.to.3.5.mph. Drive.Speed.(variable) (0.to.5.6.km/h) rotation (0.to.5.6.km/h) Battery.Protection.System Low.Voltage.Cut-Off.of.Brush.and.Solution Vacuum.Motor.Power...

  • Page 9: Maintenance

    ENGLISH GENERAL INFORMATION MAINTENANCE The.lifespan.of.the.machine.and.its.maximum.operating.safety.are.ensured.by.correct.and.regular.maintenance. WARNING! Read carefully the instructions in the Safety chapter before performing any maintenance procedure. The.following.tables.provide.the.scheduled.maintenance..The.intervals.shown.may.vary.according.to.particular.working.conditions,. which are to be defined by the person in charge of the maintenance. For.instructions.on.maintenance.procedures,.see.the.following.paragraphs. SCHEDULED MAINTENANCE TABLE Daily, after Every six Procedure using the Weekly...
  • Page 10 ENGLISH GENERAL INFORMATION MACHINE NOMENCLATURE Throughout this Manual you will find numbers in brackets – for example: (2). These numbers refer to the components indicated in these two.nomenclature.pages..Refer.to.these.pages.whenever.it.is.required.to.identify.a.component.mentioned.in.the.text. Control.panel Detergent.feed.hose.(**) Handlebar Detergent.pump.(**) Brush/forward.gear.switch.(*)..Brush.switch.(***) Detergent.tank.-.pump.connecting.hose.(**) Drive.speed.adjuster.(*) Detergent.pump.holder.(**) Battery.charger.data.inspection.window Batteries Battery.charger.cable Battery.caps Battery.charger.cable.holder Solution/clean water filter Detergent/clean.water.hose...

  • Page 11: Machine.nomenclature

    ENGLISH GENERAL INFORMATION MACHINE NOMENCLATURE (continues) P100162 SERVICE MANUAL - FOCUS II L17 - S20 - L20 - L20 Cyl. - BOOST ® ®...
  • Page 12 ENGLISH GENERAL INFORMATION MACHINE NOMENCLATURE (Continues) 72 74 73 76 75 79 80 72 74 73 76 75 79 80 FOCUS II - DRIVE FOCUS II - NO DRIVE P100163 P100164 SERVICE MANUAL - FOCUS II L17 - S20 - L20 - L20 Cyl. - BOOST ®...

  • Page 13: Solution/Clean Water Supply System

    ENGLISH SOLUTION/CLEAN WATER SUPPLY SYSTEM SOLUTION/CLEAN WATER SUPPLY SYSTEM SOLUTION/CLEAN WATER TANK AND SUPPLY SYSTEM CLEANING Drive.the.machine.to.the.appointed.solution.disposal.area. Turn.the.ignition.key.(80).to.“0”.. Empty.the.solution/clean.water.tank.(20).with.the.hose.(17). Start.the.machine.(as.shown.in.the.User.Manual).and.keep.it.running.until.the.solution/clean.water.tank.is.completely.empty. Turn.the.ignition.key.(80).to.“0”.. Clean.the.tank.(20).with.clean.water. Start.the.machine.(as.shown.in.the.User.Manual).and.keep.it.running.until.the.solution/clean.water.tank.is.completely.empty. Clean the solution filter (see the following procedure). SOLUTION FILTER CLEANING Drive the machine on a level floor. Turn.the.ignition.key.(80).to.“0”..

  • Page 14: Solenoid.valve.disassembly/Assembly

    ENGLISH SOLUTION/CLEAN WATER SUPPLY SYSTEM SOLENOID VALVE DISASSEMBLY/ASSEMBLY Disassembly (For.machines.with.brushes/pad-holders).Remove.the.brushes/pad-holders. Lower.the.deck.by.pressing.the.pedal.(11). Loosen the clamp (A) and disconnect the hoses (B) from the filter assembly (C). Disconnect.the.union.(D).from.the.solenoid.valve.(E).and.recover.the.gasket. Remove.the.screw.(F),.disconnect.the.connector.(G).and.recover.the.gasket. Remove.the.nuts.(H). Remove.the.solenoid.valve.(E).with.the.hoses.(B)..If.necessary.separate.the.hoses.(B).from.the.solenoid.valve.and.disconnect.it. from.the.union.(I). Assembly Assemble.in.the.reverse.order.of.disassembly. S301523A SERVICE MANUAL - FOCUS II L17 - S20 - L20 - L20 Cyl. - BOOST ®...

  • Page 15: Troubleshooting

    ENGLISH SOLUTION/CLEAN WATER SUPPLY SYSTEM TROUBLESHOOTING Small amount of solution or no solution reaches the brush Possible.causes: The solution/clean water filter is clogged/dirty (clean). The.solution/clean.water.tap.is.stuck.closed.(replace). The.solenoid.valve.is.broken.or.there.is.an.open.in.the.electrical.connection.(replace.the.solenoid.valve/repair.the.electrical. connection). There.is.debris.in.the.solution.tank.clogging.the.output.hole.(clean.the.tank). There is debris in the solution/clean water hoses clogging the flow (clean the hoses). The solution/clean water reaches the brush also when the machine is off Possible.causes: There.is.dirt.or.calcium.deposit.on.the.solenoid.valve.gasket.(clean).

  • Page 16: Chemical Mixing System

    ENGLISH CHEMICAL MIXING SYSTEM CHEMICAL MIXING SYSTEM TROUBLESHOOTING Small amount of detergent or no detergent reaches the brush Possible.causes: The detergent flow percentage is too low (check/change the percentage as shown in the User Manual). The hydraulic circuit upstream of the detergent pump is not triggered (check if the hose (48) is filled and, if necessary, perform one or.more.draining.cycle,.as.shown.in.the.relevant.paragraph).

  • Page 17: Brushing System

    ENGLISH BRUSHING SYSTEM BRUSHING SYSTEM BRUSH/PAD CLEANING CAUTION! It is advisable to wear protective gloves when cleaning the brushes/pads because there may be sharp debris. Remove.the.brushes/pads,.as.shown.in.the.User.Manual. Clean.and.wash.the.brushes/pads.with.water.and.detergent. Check.the.brushes/pads.for.integrity.and.wear;.if.necessary,.replace.them. (For FOCUS II CYL. DRIVE)..Remove.the.debris.container.(A).by.pulling.it.on.one.side.with.the.handle.(B).. Empty.and.wash.the.debris.container.(A),.and.then.install.it.by.engaging.it.on.the.inside.fasteners. S301529 SERVICE MANUAL - FOCUS II L17 - S20 - L20 - L20 Cyl. - BOOST ®...

  • Page 18: Brush/Pad-Holder.deck.or.cylindrical.brush.deck.disassembly/Assembly

    ENGLISH BRUSHING SYSTEM BRUSH/PAD-HOLDER DECK OR CYLINDRICAL BRUSH DECK DISASSEMBLY/ASSEMBLY The.machine.can.be.equipped.with.either.the.brush/pad-holder.deck.(18a).or.the.cylindrical.brush.deck.(18b),.according.to.the.following. procedures. WARNING! When the deck is installed/removed, it may be necessary to change the squeegee too, because they must have the same width. For correct matching of deck and squeegee, see the Squeegee Installation paragraph in the User Manual.

  • Page 19: Brush.motor.electrical.input.check.(For.focus.ii.l17.-.Focus.ii.s20.-.Focus.ii.l20)

    ENGLISH BRUSHING SYSTEM BRUSH MOTOR ELECTRICAL INPUT CHECK (for FOCUS II L17 - FOCUS II S20 - FOCUS II L20) WARNING! This procedure must be performed by qualified personnel only. Check If.the.tank.(21).contains.recovery.water: • Drive.the.machine.to.the.appointed.recovery.water.disposal.area. • Turn.the.ignition.key.(80).to.“0”. • Empty.the.recovery.water.tank.(21).with.the.hose.(16). Drive the machine on a level floor. Remove.the.brush/pad-holder.

  • Page 20: Brush.motor.electrical.input.check.(For.focus.ii.l20.Cyl.)

    ENGLISH BRUSHING SYSTEM BRUSH MOTOR ELECTRICAL INPUT CHECK (for FOCUS II L20 CYL.) WARNING! This procedure must be performed by qualified personnel only. Check Remove.the.brushes,.as.shown.in.the.User.Manual. Lower.the.deck.by.pressing.the.pedal.(11). Disconnect.the.motor.which.does.not.have.to.be.checked. Apply.the.amperometric.pliers.(A).on.one.cable.(B).of.the.brush.motor.(C). Turn.the.speed.adjuster.(84).to.idle.and.turn.the.ignition.key.(80).to."I". Turn.on.the.brushes.by.pressing.the.switch.(71).and.check.that.the.motor.electrical.input.is.5.-.8.A.at.24.V..Turn.off.the.brushes.by. pressing.the.switch.(71). Turn.the.ignition.key.(80).to.“0”. Remove.the.amperometric.pliers.(A). If.the.electrical.input.is.higher,.perform.the.following.procedures.to.detect.and.correct.the.abnormal.input: NOTE If the electrical input is higher than the maximum allowed value, the 3 battery warning lights (81) flash simultaneously. •...

  • Page 21: Brush.motor.carbon.brush.check/Replacement

    ENGLISH BRUSHING SYSTEM BRUSH MOTOR CARBON BRUSH CHECK/REPLACEMENT (for FOCUS II L17 - FOCUS II S20 - FOCUS II L20) Check If.the.tank.(21).contains.recovery.water: • Drive.the.machine.to.the.appointed.recovery.water.disposal.area. • Turn.the.ignition.key.(80).to.“0”. • Empty.the.recovery.water.tank.(21).with.the.hose.(16). Drive the machine on a level floor. Remove.the.brush/pad-holder. Lower.the.deck.by.pressing.the.pedal.(11). Turn.the.ignition.key.(80).to.“0”. Carefully.lift.the.tank.(40). Disconnect.the.battery.connector.(12). Remove.dust.and.dirt.from.the.motor.carbon.brush.support.area.(A).

  • Page 22: Brush.motor.carbon.brush.check/Replacement

    ENGLISH BRUSHING SYSTEM BRUSH MOTOR CARBON BRUSH CHECK/REPLACEMENT (for FOCUS II L20 CYL.) Check Remove.the.brush.motor.(see.the.procedure.in.the.relevant.paragraph). At.the.workbench,.remove.dust.and.debris.from.the.motor,.especially.in.the.area.of.the.protection.clamp.(A). Remove.the.protection.clamp.(A). For.each.carbon.brush,.move.the.protection.(B).and.remove.the.screws.(C). Remove.the.carbon.brushes.(D). Check the carbon brushes (D) for wear. Replace the carbon brushes when: the contact with the motor armature is insufficient, the carbon.brushes.are.worn,.the.carbon.brush.contact.surface.is.not.integral,.the.thrust.spring.is.broken,.etc.

  • Page 23: Brush.motor.disassembly/Assembly.(For.focus.ii.l17.-.Focus.ii.s20.-.Focus.ii.l20)

    ENGLISH BRUSHING SYSTEM BRUSH MOTOR DISASSEMBLY/ASSEMBLY (for FOCUS II L17 - FOCUS II S20 - FOCUS II L20) Disassembly Remove.the.cylindrical.brush.deck.(see.the.procedure.in.the.relevant.paragraph). At.the.workbench,.remove.the.screw.(A).from.the.deck. Remove.the.hub.assembly.(B).with.a.puller. Remove.the.screws.(C). Remove.the.reduction.unit.(D). If necessary, remove the water distribution union (E) and flange (F) from the reduction unit. Assembly Assemble.in.the.reverse.order.of.disassembly.

  • Page 24: Brush.motor.disassembly/Assembly.(For.focus.ii.l20.Cyl.)

    ENGLISH BRUSHING SYSTEM BRUSH MOTOR DISASSEMBLY/ASSEMBLY (for FOCUS II L20 CYL.) Disassembly Remove.the.cylindrical.brush.deck.(see.the.procedure.in.the.relevant.paragraph). At.the.workbench,.remove.the.screw.(A).from.the.motor.which.has.to.be.disassembled. Remove.the.case.(B). Loosen.the.nut.(C).and.move.the.pulley.(D).to.loosen.the.belt.(E). Remove.the.belt.(E). Remove.the.screws.(F). Remove.the.motor.(G). Assembly Assemble.the.components.in.the.reverse.order.of.disassembly,.and.note.the.following: • The.electrical.connections.(H).of.the.motor.(G).must.be.turned.upwards. • The connection (J) of the carbon brush protection clamps (I) must be positioned as shown in the figure. •...

  • Page 25: Check/Replacement/Adjustment Of Driving Belts Between Motors And Cylindrical Brushes (For Focus Ii L20 Cyl.)

    ENGLISH BRUSHING SYSTEM CHECK/REPLACEMENT/ADJUSTMENT OF DRIVING BELTS BETWEEN MOTORS AND CYLINDRICAL BRUSHES (for FOCUS II L20 CYL.) Check Drive the machine on a level floor. Turn.the.ignition.key.(12).to.“0”. Lower.the.cylindrical.brush.deck.by.pressing.the.pedal.(11). Remove.the.screws.(A).and.remove.the.covers.(B). Visually.inspect.the.belt.(C).for.integrity,.cuts,.tears.or.cracks,.if.necessary.replace.it.according.to.the.following.procedure. Check.the.tension.of.the.belt.(C).according.to.the.following.procedure. Replacement If.the.belt.(G).is.to.be.replaced,.loosen.the.nut.(D).and.move.the.pulley.(K).to.loosen.the.belt. Tension.the.belt.(according.to.the.following.procedure). Belt tensioning Check.the.tension.of.the.belt.(C).between.motor.and.brush..The.tension.is.correct: • When.pressing.the.belt.in.its.centre.with.a.force.of.22.lb.(10.kg).(F),.the.belt.bends.for.0.20.in.(5.mm). If.necessary,.tension.the.belt.according.to.the.following.procedure: Loosen.the.nut.(D).and.adjust.the.position.of.the.pulley.(E)..When.tensioning.procedure.has.been.performed,.tighten.the.nut.(D). Repeat.step.8.
  • Page 26 ENGLISH BRUSHING SYSTEM CHECK/REPLACEMENT/ADJUSTMENT OF DRIVING BELTS BETWEEN MOTORS AND CYLINDRICAL BRUSHES (for FOCUS II L20 CYL.) (Continues) S301548 SERVICE MANUAL - FOCUS II L17 - S20 - L20 - L20 Cyl. - BOOST ® ®...

  • Page 27: Troubleshooting

    ENGLISH BRUSHING SYSTEM TROUBLESHOOTING All brushes do not turn Possible.causes: The.brush.enabling.microswitch.is.misadjusted.or.broken.(adjust.or.replace). The.wiring.harness.between.microswitch.and.function.electronic.board.is.damaged.(repair). The.brush.motor.electromagnetic.switch.wiring.harness.is.damaged.(repair). The.function.electronic.board.is.damaged.(replace). The.wiring.harness.between.function.electronic.board.and.brush.motor.electromagnetic.switch.is.damaged.(repair). The.brush.motor.electromagnetic.switch.is.damaged.(replace). The.brush.motor.fuse.is.open.(replace). SERVICE MANUAL - FOCUS II L17 - S20 - L20 - L20 Cyl. - BOOST ® ®...

  • Page 28: Recovery Water System

    ENGLISH RECOVERY WATER SYSTEM RECOVERY WATER SYSTEM RECOVERY WATER TANK AND VACUUM GRID CLEANING, AND COVER GASKET CHECK Drive.the.machine.to.the.appointed.recovery.water.disposal.area. Turn.the.ignition.key.(80).to.“0”. Lift.the.cover.(A).to.washing.position.(L). Wash with clean water the cover (A), the tank (B) and the vacuum grid with automatic shut-off float (D). Drain.the.water.in.the.tank.through.the.hose.(16).

  • Page 29: Squeegee.cleaning/Check/Replacement.and.squeegee.blade.replacement

    ENGLISH RECOVERY WATER SYSTEM SQUEEGEE CLEANING/CHECK/REPLACEMENT AND SQUEEGEE BLADE REPLACEMENT (All models) CAUTION! It is advisable to wear protective gloves when cleaning the squeegee because there may be sharp debris. Disassembly and cleaning Drive the machine on a level floor. Turn.the.ignition.key.(80).to.“0”.

  • Page 30: Vacuum.system.motor.filter.cleaning

    ENGLISH RECOVERY WATER SYSTEM VACUUM SYSTEM MOTOR FILTER CLEANING Disassembly and cleaning If.the.tank.(21).contains.recovery.water: Drive.the.machine.to.the.appointed.recovery.water.disposal.area. Turn.the.ignition.key.(80).to.“0”. Empty.the.recovery.water.tank.(21).with.the.hose.(16). Drive the machine on a level floor. Turn.the.ignition.key.(80).to.“0”. Carefully.lift.the.tank.(40). Remove the vacuum system motor filter (44) and clean it with water and compressed air. Install the filter (44).

  • Page 31: Vacuum.system.motor.electrical.input.check

    ENGLISH RECOVERY WATER SYSTEM VACUUM SYSTEM MOTOR ELECTRICAL INPUT CHECK WARNING! This procedure must be performed by qualified personnel only. If.the.tank.(21).contains.recovery.water: Drive.the.machine.to.the.appointed.recovery.water.disposal.area. Turn.the.ignition.key.(80).to.“0”. Empty.the.recovery.water.tank.(21).with.the.hose.(16). Drive the machine on a level floor. Turn.the.ignition.key.(80).to.“0”. Disconnect.the.battery.connector.(12). Carefully.lift.the.tank.(40). Apply.the.amperometric.pliers.(A).on.one.cable.(B).of.the.batteries. Turn.the.ignition.key.(80).to.“I”. Turn.on.the.vacuum.system.by.pressing.the.switch.(73).and.check.that.the.motor.electrical.input.is.16.-.19.A.at.24.V.. Turn.off.the.vacuum.system.motor.by.pressing.the.switch.(73). Remove.the.amperometric.pliers.(B). If the electrical input exceeds the specifications, check the motor carbon brushes (see the procedure in the relevant paragraph). If.necessary,.disassemble.the.vacuum.system.motor.(see.the.procedure.in.the.relevant.paragraph),.and.check.the.condition.of.its.

  • Page 32: Vacuum.system.motor.carbon.brush.check/Replacement

    ENGLISH RECOVERY WATER SYSTEM VACUUM SYSTEM MOTOR CARBON BRUSH CHECK/REPLACEMENT Remove.the.vacuum.system.motor.(see.the.procedure.in.the.relevant.paragraph). At the workbench, remove the cover (A) (press-fitted) from the vacuum system motor (B). Remove.the.screws.(C). Disconnect.the.electrical.connections.(D). Remove.the.carbon.brushes.(E). Check the carbon brushes for wear. Replace the carbon brushes when: the contact with the motor armature is insufficient, the carbon.brushes.are.worn,.the.carbon.brush.contact.surface.is.not.integral,.the.thrust.spring.is.broken,.etc.

  • Page 33: Vacuum.system.motor.disassembly/Assembly

    ENGLISH RECOVERY WATER SYSTEM VACUUM SYSTEM MOTOR DISASSEMBLY/ASSEMBLY Disassembly If.the.tank.(21).contains.recovery.water: • Drive.the.machine.to.the.appointed.recovery.water.disposal.area. • Turn.the.ignition.key.(80).to.“0”. • Empty.the.recovery.water.tank.(21).with.the.hose.(16). Drive the machine on a level floor. Turn.the.ignition.key.(80).to.“0”. Disconnect.the.battery.connector.(12). Carefully.lift.the.tank.(40). Remove.the.screws.(A).and.recover.the.washers. Remove.the.motor.cover.(B). Remove the filter (C) and the gasket (D). Remove.the.motor.(E).or.(L),.the.sound-deadening.pipe.(F).and.the.sound-deadening.panel.(G). Disconnect.the.electrical.connector.(H).of.the.motor.(E). Check the gasket (I) for efficiency and, if necessary, replace it. Assembly Assemble.the.components.in.the.reverse.order.of.disassembly,.and.note.the.following: •...

  • Page 34: Squeegee.spring.check/Replacement.(All.models,.With.aluminium.squeegee)

    ENGLISH RECOVERY WATER SYSTEM SQUEEGEE SPRING CHECK/REPLACEMENT (All models, with aluminium squeegee) Check Drive the machine on a level floor. Turn.the.ignition.key.(80).to.“0”. Check that the springs (A) and (B) push the squeegee (C) on the floor correctly. If.necessary,.disassemble.and.replace.the.springs.according.to.the.following.procedure. Disassembly Remove.the.squeegee.(see.the.procedure.in.the.relevant.paragraph). Lift.the.deck.by.pressing.the.pedal.(11). Grasp.the.handlebar.(2).and.lower.the.front.part.of.the.machine.

  • Page 35: Troubleshooting

    ENGLISH RECOVERY WATER SYSTEM TROUBLESHOOTING The vacuum system motor does not turn on Possible.causes: The.wiring.harness.between.the.function.electronic.board.and.the.vacuum.system.relay.is.damaged.or.short-circuited.(check.and. repair). The.vacuum.system.relay.is.damaged.(replace). The.wiring.harness.between.relay.and.motor.is.damaged.(repair). The.vacuum.system.fuse.is.open.(replace). The.vacuum.system.motor.carbon.brushes.are.worn.(replace). The.vacuum.system.motor.is.faulty.(check.the.electrical.input). The.function.electronic.board.is.damaged.(replace). Dirty water vacuuming is insufficient or there is no vacuuming Possible.causes: The vacuum grid with automatic shut-off float is activated because the recovery water tank is full (empty the recovery water tank). The vacuum grid with automatic shut-off float is dirty, or the vacuum pre-filter is dirty (clean).

  • Page 36: Drive System

    ENGLISH DRIVE SYSTEM DRIVE SYSTEM MAXIMUM SPEED POTENTIOMETER DISASSEMBLY/ASSEMBLY (for FOCUS II L17 - FOCUS II L20 - FOCUS II L20 Cyl. - FOCUS II BOOST L20) Disassembly Disconnect.the.battery.connector.(12). Operating.inside.the.hole.(B),.loosen.the.threaded.dowel.and.remove.the.maximum.speed.adjuster.knob.(A). Remove.the.adhesive.(C). Remove.the.screws.(D).and.move.the.cover.(E). Unscrew.the.potentiometer.mounting.nut.(F). Disconnect.the.potentiometer.connector.(G). Remove.the.potentiometer. Assembly Assemble.the.components.in.the.reverse.order.of.disassembly,.and.note.the.following: • Fasten.the.knob.(A).with.the.potentiometer.shaft.(L).completely.turned.counter-clockwise,.and.the.hole.(B).in.the.lower.centre. part of the panel as shown in the figure.

  • Page 37: Drive.system.motor.electrical.input.check

    P100154 DRIVE SYSTEM MOTOR ELECTRICAL INPUT CHECK (for FOCUS II L17 - FOCUS II L20 - FOCUS II L20 Cyl. - FOCUS II BOOST L20) WARNING! This procedure must be performed by qualified personnel only and with the help of an assistant.
  • Page 38 ENGLISH DRIVE SYSTEM DRIVE SYSTEM MOTOR ELECTRICAL INPUT CHECK (for FOCUS II L17 - FOCUS II L20 - FOCUS II L20 Cyl. - FOCUS II BOOST L20) (Continues) S301562 SERVICE MANUAL - FOCUS II L17 - S20 - L20 - L20 Cyl. - BOOST ®...

  • Page 39: Drive.system.motor.carbon.brush.check.and.replacement

    ENGLISH DRIVE SYSTEM DRIVE SYSTEM MOTOR CARBON BRUSH CHECK AND REPLACEMENT (for FOCUS II L17 - FOCUS II L20 - FOCUS II L20 Cyl. - FOCUS II BOOST L20) Drive.the.machine.to.the.appointed.disposal.area,.and.empty.the.recovery.water.tank.(21).with.the.hose.(16). Place.the.machine.on.a.hoisting.system.(if.available). Otherwise, drive the machine on a level floor. Turn.the.ignition.key.(80).to.“0”.

  • Page 40: Drive.system.motor-Differential.disassembly/Assembly

    ENGLISH DRIVE SYSTEM DRIVE SYSTEM MOTOR-DIFFERENTIAL DISASSEMBLY/ASSEMBLY (for FOCUS II L17 - FOCUS II L20 - FOCUS II L20 Cyl. - FOCUS II BOOST L20) Disassembly If.the.tank.(21).and/or.(20).contains.recovery.water: • Drive.the.machine.to.the.appointed.disposal.area. • Turn.the.ignition.key.(80).to.“0”. • Empty.the.recovery.water.tank.(21).with.the.hose.(16). • Empty.the.solution/clean.water.tank.(20).with.the.hose.(17). Remove.the.squeegee.(see.the.procedure.in.the.relevant.paragraph). Remove.the.batteries.(see.the.procedure.in.the.relevant.paragraph). Prepare.an.hoisting.system.(A).on.which.the.machine.is.to.be.laid.on.one.side..Place.a.panel.(B).on.the.hoisting.system.to.avoid. damaging.the.machine. With.the.help.of.an.assistant,.tilt.the.machine.on.one.side.and.lay.it.on.the.panel.(B).

  • Page 41: Troubleshooting

    ENGLISH DRIVE SYSTEM TROUBLESHOOTING Open circuit Possible.causes: There.are.bulky.debris.or.cords.under.the.machine.or.around.the.driving.wheels.(remove.the.debris). The.motor.is.damaged.(check.the.motor.electrical.input). The floor gradient is excessive (do not use the drive system on slopes with a gradient exceeding the specifications). There.is.a.short.circuit.in.the.drive.system.electronic.board.wiring.harness.(repair). The.drive.system.electronic.board.is.faulty.(replace). The machine does not move Possible.causes: The.battery.voltage.is.too.low.(charge.the.batteries). The.drive.paddle.potentiometer.(83).is.misadjusted.or.broken.(adjust.or.replace). The.speed.adjuster.(84).is.broken.(replace). The.drive.system.enabling.microswitch.is.misadjusted.or.broken.(adjust.or.replace). The.drive.system.electronic.board.is.faulty.(replace).
  • Page 42 ENGLISH DRIVE SYSTEM TROUBLESHOOTING (Continues) Drive system electronic board diagnostic table No. of flashes (*) Meaning Action Drive.system/brush.enabling.microswitch.closed.when. Check.the.SW1.switches starting.the.machine Reverse.gear.switch.closed.when.starting.the.machine Check.the.switch.SW2 Thermal.protection Check.the.drive.system.motor.electrical.input Faulty.drive.system.electronic.board Replace.the.drive.system.electronic.board Check.the.drive.system.motor.electrical.input;.if.the.electrical. Overcurrent.output input.is.normal,.replace.the.drive.system.electronic.board Check.the.drive.system.fuse.and.the.drive.system.electronic. Missing.power.connection. board.wiring.harness;.if.the.fuse.and.the.wiring.harness.are. normal,.replace.the.drive.system.electronic.board Low.battery.voltage. Charge.the.batteries. High.battery.voltage Check.the.batteries Overload.output Check.the.drive.system.motor.electrical.input (Not.applicable) –...

  • Page 43: Other Systems

    ENGLISH OTHER SYSTEMS OTHER SYSTEMS SCREW AND NUT TIGHTENING CHECK (All models) Drive.the.machine.to.the.appointed.disposal.area,.and.empty.the.recovery.water.tank.(21).with.the.hose.(16). Place.the.machine.on.a.hoisting.system.(if.available). Otherwise, drive the machine on a level floor. Turn.the.ignition.key.(80).to.“0”. Carefully.lift.the.tank.(40). Check: • Tightening.of.mounting.screws.and.nuts; • Correct.position.of.fasteners; • Visible.faults.in.the.components; • Leaks of fluids. Carefully.lower.the.tank.(40). Remove.the.machine.from.the.hoisting.system. SERVICE MANUAL - FOCUS II L17 - S20 - L20 - L20 Cyl.

  • Page 44: Electrical System

    ENGLISH ELECTRICAL SYSTEM ELECTRICAL SYSTEM MACHINE WORKING HOUR CHECK (for FOCUS II equipped with optional hour meter) Turn.the.ignition.key.(80).to.“I”. Press.the.vacuum.system.switch.(73).and.read.on.the.hour.meter.(79).the.total.number.of.working.hours.(scrubbing/drying). performed.by.the.machine. Turn.off.the.vacuum.system.by.pressing.the.switch.(73). Turn.the.ignition.key.(80).to.“0”. BATTERY CHARGE AND MAINTENANCE See.the.User.Manual. SERVICE MANUAL - FOCUS II L17 - S20 - L20 - L20 Cyl. - BOOST ®...

  • Page 45: Battery.disassembly/Assembly

    ENGLISH ELECTRICAL SYSTEM BATTERY DISASSEMBLY/ASSEMBLY Disassembly If.the.tank.(21).contains.recovery.water: • Drive.the.machine.to.the.appointed.recovery.water.disposal.area. • Turn.the.ignition.key.(80).to.“0”. • Empty.the.recovery.water.tank.(21).with.the.hose.(16). Drive the machine on a level floor. Turn.the.ignition.key.(80).to.“0”. Disconnect.the.battery.connector.(12). Carefully.lift.the.tank.(40). Disconnect.the.cables.(A).from.the.battery.terminals. Remove.the.battery.shims,.if.equipped. Carefully.remove.the.batteries.(B). Assembly Assemble.the.batteries.in.the.reverse.order.of.disassembly,.referring.to.the.installation.diagram.(C),.and.note.the.following: • Set.the.machine.according.to.the.type.of.batteries.installed.(WET.or.AGM).as.shown.in.the.relevant.paragraph. S301566 SERVICE MANUAL - FOCUS II L17 - S20 - L20 - L20 Cyl. - BOOST ®...

  • Page 46: Battery.type.setting.(Wet.or.agm).(For.focus.ii.s20)

    ENGLISH ELECTRICAL SYSTEM BATTERY TYPE SETTING (WET OR AGM) (for FOCUS II NO DRIVE) Set.the.electronic.board.of.the.machine.and.of.the.battery.charger.according.to.the.type.of.batteries.installed.(WET.or.AGM).according. to.the.following.procedure: Machine setting Press the switch (71) or (73) and pay attention to the following in the very first seconds of machine operation: • If the green warning light (81a) is flashing, the machine is set to GEL. •...

  • Page 47: Fuse.check/Replacement

    ENGLISH ELECTRICAL SYSTEM FUSE CHECK/REPLACEMENT Disconnect.the.battery.connector.(12). Move.aside.the.recovery.water.drain.hose.(16). Remove.the.battery.charger.cable.(I),.from.the.cable.holder.(J). Remove.the.screws.(A).and.carefully.move.aside.the.panel.(B).by.disengaging.the.grommet.(K).from.its.housing.on.the.panel.(B). Check/replace.the.following.fuses: Deck.fuse.F1:.(40.A) Vacuum.system.fuse.F2:.(30.A) Drive.system.fuse.F3:.(30.A).(*) Signal.circuits.fuse.F4:.(3.A) Brush/pad-holder.release.fuse.F5:.(20.A) Pump.fuse.F6:.(3.A) (*). Only.for.FOCUS II DRIVE Perform.steps.1.to.4.in.the.reverse.order. P100110 SERVICE MANUAL - FOCUS II L17 - S20 - L20 - L20 Cyl. - BOOST ® ®...

  • Page 48: Brush.motor.electromagnetic.switch.disassembly/Assembly

    ENGLISH ELECTRICAL SYSTEM BRUSH MOTOR ELECTROMAGNETIC SWITCH DISASSEMBLY/ASSEMBLY Disassembly Disconnect.the.battery.connector.(12). Move.aside.the.recovery.water.drain.hose.(16). Remove.the.battery.charger.cable.(6),.from.the.cable.holder.(7). Remove.the.screws.and.carefully.move.aside.the.panel.(B).by.disengaging.the.cable.grommet.from.its.housing.on.the.panel.(B). Disconnect.the.connectors.(D),.(E),.(F),.and.remove.the.panel.(B). Disconnect.the.terminals.(G).and.(H).from.the.electromagnetic.switch.(J)..Disconnect.also.the.terminals.(I),.which.are.only.on. models.equipped.with.drive.system. Remove.the.screws.(K).and.move.the.electrical.panel.(L).by.disengaging.it.from.the.lower.fastener.(M). Remove.the.screws.(N).on.the.rear.side.of.the.electrical.panel.(L),.then.remove.the.electromagnetic.switch.(J). Assembly Assemble.in.the.reverse.order.of.disassembly. P100159 SERVICE MANUAL - FOCUS II L17 - S20 - L20 - L20 Cyl. - BOOST ® ®...
  • Page 49 ENGLISH ELECTRICAL SYSTEM BRUSH MOTOR ELECTROMAGNETIC SWITCH DISASSEMBLY/ASSEMBLY (Continues) S301572 SERVICE MANUAL - FOCUS II L17 - S20 - L20 - L20 Cyl. - BOOST ® ®...

  • Page 50: Drive.system.electronic.board.disassembly/Assembly

    ENGLISH ELECTRICAL SYSTEM DRIVE SYSTEM ELECTRONIC BOARD DISASSEMBLY/ASSEMBLY (for FOCUS II DRIVE) Disassembly Disconnect.the.battery.connector.(12). Move.aside.the.recovery.water.drain.hose.(16). Remove.the.battery.charger.cable.(6),.from.the.cable.holder.(7). Remove.the.screws.and.carefully.move.aside.the.panel.(B).by.disengaging.the.cable.grommet.from.its.housing.on.the.panel.(B). Disconnect.the.connectors.(D),.(E),.(F),.and.remove.the.panel.(B). Disconnect.the.connectors.(G).of.the.drive.system.electronic.board.(H). Remove.the.screws.(I).and.move.the.electrical.panel.(J).by.disengaging.it.from.the.lower.fastener.(K). Remove.the.screws.(L).on.the.rear.side.of.the.electrical.panel.(J),.then.remove.the.drive.system.electronic.board.(H). Assembly Assemble.in.the.reverse.order.of.disassembly. P100158 SERVICE MANUAL - FOCUS II L17 - S20 - L20 - L20 Cyl. - BOOST ® ®...
  • Page 51 ENGLISH ELECTRICAL SYSTEM DRIVE SYSTEM ELECTRONIC BOARD DISASSEMBLY/ASSEMBLY (for FOCUS II DRIVE) (Continues) S301574 SERVICE MANUAL - FOCUS II L17 - S20 - L20 - L20 Cyl. - BOOST ® ®...

  • Page 52: Function.electronic.board.disassembly/Assembly

    ENGLISH ELECTRICAL SYSTEM FUNCTION ELECTRONIC BOARD DISASSEMBLY/ASSEMBLY Disassembly Disconnect.the.battery.connector.(12). Move.aside.the.recovery.water.drain.hose.(16). Remove.the.battery.charger.cable.(6),.from.the.cable.holder.(7). Remove.the.screws.and.carefully.move.aside.the.panel.(B).by.disengaging.the.cable.grommet.from.its.housing.on.the.panel.(B). Disconnect.the.connectors.(D),.(E),.(F),.and.remove.the.panel.(B). On.the.panel,.remove.the.screws.(G),.then.remove.the.function.electronic.board.(H). Assembly Assemble.in.the.reverse.order.of.disassembly. P100157 SERVICE MANUAL - FOCUS II L17 - S20 - L20 - L20 Cyl. - BOOST ® ®...

  • Page 53: Troubleshooting

    ENGLISH ELECTRICAL SYSTEM TROUBLESHOOTING See.the.previous.chapters.related.to.the.use.of.the.electrical.system. Other.possible.causes: The batteries are discharged or the connections are not efficient (charge the batteries or clean the connections). The.batteries.are.broken.(check.the.battery.no-load.voltage). NOTE In the machines equipped with on-board battery charger, a fault in the battery charger and relevant connections can affect the machine operation.

  • Page 54: Component.layout.(For.focus.ii.s20)

    ENGLISH ELECTRICAL SYSTEM COMPONENT LAYOUT (for FOCUS II NO DRIVE) 24.V.battery Battery.connector Battery.charger.connector Battery.charger Deck.connector Function.electronic.board Brush.electromagnetic.switches Vacuum.system.relay Water.solenoid.valve Deck.fuse Vacuum.system.fuse Signal.circuit.fuse Brush.release.fuse Pump.fuse Hour.meter.(optional) Ignition.key Brush/pad-holder.motor Vacuum.system.motor Detergent.pump.(optional) Detergent.%.potentiometer.(optional) SW1 Brush/drive.system.enabling.switch P100147 SERVICE MANUAL - FOCUS II L17 - S20 - L20 - L20 Cyl. - BOOST ®...

  • Page 55: Wiring.diagram.(For.focus.ii.s20)

    ENGLISH ELECTRICAL SYSTEM WIRING DIAGRAM (for FOCUS II NO DRIVE) Vacuum.system.motor Detergent.pump.(optional) 24.V.battery Detergent.%.potentiometer.(optional) Battery.connector SW1 Brush/drive.system.enabling.switch Battery.charger.connector Colour codes Battery.charger Deck.connector Black Function.electronic.board Blue Brush.electromagnetic.switches Brown Vacuum.system.relay Green Water.solenoid.valve Grey Deck.fuse Orange Vacuum.system.fuse Pink Signal.circuit.fuse Brush.release.fuse Violet Pump.fuse White Hour.meter.(optional) Yellow Ignition.key...

  • Page 56: Component.layout.(For.focus.ii.l17.-.Focus.ii.l20.-.Focus.ii.l20.Cyl

    ENGLISH ELECTRICAL SYSTEM COMPONENT LAYOUT (for FOCUS II DRIVE) 24.V.battery Battery.connector Battery.charger.connector Battery.charger Cylindrical.brush.deck.sub-connector Function.electronic.board Drive.system.electronic.board Brush.electromagnetic.switches Vacuum.system.relay Water.solenoid.valve Deck.fuse Vacuum.system.fuse Drive.system.fuse Signal.circuit.fuse Brush/pad-holder.release.fuse Pump.fuse Hour.meter.(optional) Ignition.key Brush/pad-holder.motor Vacuum.system.motor Drive.system.motor Detergent.pump.(optional) Maximum.speed.potentiometer Detergent.%.potentiometer.(optional) SW1 Brush/drive.system.enabling.switch SW2 Reverse.gear.switch P100148 SERVICE MANUAL - FOCUS II L17 - S20 - L20 - L20 Cyl.
  • Page 57 ENGLISH ELECTRICAL SYSTEM COMPONENT LAYOUT (for FOCUS II DRIVE) (Continues) F5 F6 P100149 SERVICE MANUAL - FOCUS II L17 - S20 - L20 - L20 Cyl. - BOOST ® ®...

  • Page 58: Wiring.diagram.(For.focus.ii.l17.-.Focus.ii.l20.-.Focus.ii.l20.Cyl

    ENGLISH ELECTRICAL SYSTEM WIRING DIAGRAM (for FOCUS II DRIVE) Drive.system.motor Detergent.pump.(optional) 24.V.battery Maximum.speed.potentiometer Battery.connector Detergent.%.potentiometer.(optional) Battery.charger.connector SW1 Brush/drive.system.enabling.switch Battery.charger SW2 Reverse.gear.switch Cylindrical.brush.deck.sub-connector Function.electronic.board (*). Only.for.machines.with.cylindrical.brush.deck Drive.system.electronic.board Brush.electromagnetic.switches Colour codes Vacuum.system.relay Black Water.solenoid.valve Blue Deck.fuse Brown Vacuum.system.fuse Green Drive.system.fuse Grey Signal.circuit.fuse Orange Brush/pad-holder.release.fuse Pink...
  • Page 59 Michigan 48071-0158 29815 John R. ALTO Cleaning Systems (UK) Ltd., Penrith (810) 544-6300 Gilwilly Industrial Estate Penrith American Lincoln / Clarke, Marietta, Georgia 30066 ® Cumbria CA11 9BN 1455 Canton Road +44 1768 868 995 (770) 973-5225 ALTO France S.A. Strasbourg B.P.
  • Page 60 STATED WARRANTIES ARE IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED Clarke's liability under this warranty is limited to repair of the product and/or replacement of parts and is given to purchaser in lieu of all other remedies, including INCIDENTAL AND CONSEQUENTIAL DAMAGES.

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