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READ THIS BOOK

This book has important information for the use and safe operation of this machine.  Failure to read this
book prior to operating or attempting any service or maintenance procedure to your ALTO machine could
result in injury to you or to other personnel; damage to the machine or to other property could occur as
well.  You must have training in the operation of this machine before using it.  If operator(s) cannot read
English, have this manual explained fully before attempting to operate this machine.

Si  Ud. o sus operadores no pueden leer el Inglés, se hagan explicar este manual completamente antes
de tratar el manejo o servicio de esta máquina.

All directions given in this book are as seen from the operator’s position at the rear of the machine.

For new books write to:  ALTO U.S. Inc.,  2100 Highway 265, Springdale,  Arkansas  72764.

Operator's

Manual

ENCORE

S20/L20

Form No. 74836B

8/05

CLARKE TECHNOLOGY                                            Printed in the U.S.A.

U.S. Patent No. 5,383,251; No. 6,105,192; No. 6,557,207; & Patent Pending

Summary of Contents for L-20

Page 1: ...f operator s cannot read English have this manual explained fully before attempting to operate this machine Si Ud o sus operadores no pueden leer el Inglés se hagan explicar este manual completamente antes de tratar el manejo o servicio de esta máquina All directions given in this book are as seen from the operator s position at the rear of the machine For new books write to ALTO U S Inc 2100 High...

Page 2: ...ar Panel Assembly Drawing 56 Parts List 57 Electrical Cover Assembly Drawing and Parts List 58 Encore L20 Electrical Schematic 59 Encore L20 Connection Diagram 60 Encore S20 Electrical Schematic 61 Encore S20 Connection diagram 62 For Machines with a 41150C Traverse Controller Encore L20 Rear Panel Assembly Drawing 64 Parts List 65 Electrical Cover Assembly Drawing and Parts List 66 Encore L20 Ele...

Page 3: ...ammable materials and vapors Do not use this machine with or near fuels grain dust solvents thinners or other flammable materials This machine is not suitable for picking up hazardous dust DANGER Lead acid batteries generate gases which can cause an explosion Keep sparks and flames away from batteries Do not smoke around the machine Charge the batteries only in an area with good ventilation Make s...

Page 4: ...nment and be illegal The United States Environmental Protection Agency has established certain regulations regarding discharge of waste water Also city and state regulations regarding this discharge my be in effect in your area Understand and follow the regulations in your area Be aware of the environment hazards of chemicals that you dispose CAUTION Use of this machine to move other objects or to...

Page 5: ...43 110 5 cm Sound Level DBA 74 at 5 feet 74 at 1 5 meters Cleaning Swath 20 inch 51 cm Grade Cleaning 5 Incline Weight 468 lbs w 2 871334A batteries 212 28 kg w 2 871334A batteries Shipping Weight 607 lbs w wet batteries 275 33 kg w wet batteries Battery Weight each 113 lbs 871334A and 81 lbs 871335A 51 26 kg 871334A and 36 74 kg 871335A Shipping Dimensions 28 x 65 5 x 46 5 71 12 cm x 166 37 cm x ...

Page 6: ...y on a level surface When you stop the machine put all switches into their OFF position 1 Make sure the loading ramp is at least eight 8 feet long and a minimum of 32 wide and strong enough to support the machine 2 Make sure the ramp is clean and dry 3 Put the ramp in position 4 Removesqueegeeassembly brushhousingand brushorpaddriverbeforeloading 5 Turn key switch ON on L20 model only 6 Align the ...

Page 7: ...he machine WARNING The machine is heavy Make sure you use two able persons to assist in moving the machine down the ramp 6 On S20 model get two people to pull machine off ramp It is recommended that the S model be unloaded in the forward position 7 Turn the key switch ON L model only 8 Set the traverse center knob to the slowest forward speed setting Carefully and slowly drive the machine to the t...

Page 8: ...ttons are pushed To shut brush motor off raise handle to top position A B D G H I Key Switch See Figure 3 Item A The key switch turns ON the power to the control panel O is OFF and I is ON Forward Reverse Switch See Figure 3 Item B On Traverse Model Only Theforward reverse switchturnsthetraversemotor on forward and if the brush motor is in the down position activates the brush motor solution contr...

Page 9: ...Shut Off See Figure 6 The shut off switch for the vac motor is located in the recovery tank It automatically turns off the vac motor when the recovery tank is full NOTE If excessive foaming in recovery tank defoamer must be added Damage to vacuum motor could result from foam Parking Brake See Figures 7a and 7b Optional Theparkingbrakepreventsmovementofthemachine It is located at the rear lower lef...

Page 10: ...attery cables between batteries and install long battery cable assembly as indicated See figure 8 6 Join the connector from the battery pack to the connector on the control panel See figure 9 7 Lowerrecoverytank NOTE Charge the batteries before using the machine Battery Maintenance The electrical power to operate the machine comes from the storage batteries Storage batteries need preventativemaint...

Page 11: ...r the tops of the batter ies Never add acid to a battery after installation CAUTION Tap water may contain contami nants that will damage batteries Batteries must be refilled with distilled water only 2 Keep the tops of the batteries clean and dry Keep the terminals and connectors clean To clean the top of the batteries use a damp cloth with a weak solution of ammonia or bicarbonate of soda solutio...

Page 12: ...this procedure 1 Put the charger on a flat surface Make sure the vents on the sides are at least two inches away from walls and other objects Make sure there are no objects near the vents on the bottom of thecharger 2 Set the parking brake if provided by putting it into the down position See figure 12 Make sure the key switch is in OFF position 3 Disconnect the battery pack connector from the cont...

Page 13: ...gure 15c 6 Align the lugs on the motor with the slots in the brushgimbal 7 Pull the brush up and rotate counter clockwise until gimbal locks 8 Replace brush housing and close brush motor cover How To Remove The Brush or Pad Driver To remove the brush or pad driver from the machine followthisprocedure 1 Put the brush switch in the UP position 2 Turn the key switch OFF 3 Go to the front of the machi...

Page 14: ...on Tank The solution tank lid is at the front To fill the solution tank follow this procedure 1 Raise the solution tank lid 2 Add a cleaning chemical to the solution tank For the correct amount of chemical follow the directions shown on the container 3 Fill the solution tank with water 4 Lower the solution tank lid WARNING Water solutions or cleaning materials used with this type of machine can le...

Page 15: ...d reverseswitch 9 To reverse the machine push in the white reverse switch figure 18 item B and either the right or left forward reverse switch figure 18 item A at the sametime NOTE Anytimethemachineisreversed the squeegee must be raised to either of the two up positions Thiswillpreventdamagetothesqueegee 10 Tostop releasetheforward reverseswitch 11 To turn the machine push the rear of the machine ...

Page 16: ...g on the floor Pre wet brush pad or keep light pressure on brush until solution flow is adequate to keep brush padfromscratchingfloor 7 Turn the solution knob to the right to activate the flow of solution Adjust the flow of clean solution to the flowdesired 8 Move the machine across the floor in the forward direction 9 Make a 180 turn NOTE When you make more passes across the floor let the brush c...

Page 17: ...CLARKE TECHNOLOGY Operator s Manual Encore S20 L20 Page 17 ENCORE S20 L20 Section II Parts and Service Manual 74836B U S Patent No 5 383 251 No 6 105 192 No 6 557 207 Patent Pending ...

Page 18: ...eries for a full 16 hour charge Have an authorized service person repair the charger Check voltage of each cell while discharging Connect the batteries Run in float position PROBLEM CAUSE ACTION The solution valve is closed There is an obstruction in the solution hose or filter The solution valve or electric wiring is damaged The solution tank is empty The solution module is damaged The solution v...

Page 19: ...y or switch is off Batteries are unplugged Battery terminals are dirty Batteries are discharged Reset the circuit breaker Turn key or switch on Check the battery connections Check battery gauge and recharge NOTE If the problem continues consult an authorized service person Replace the scrub brush or pad Have an authorized service person make the needed repairs Check for tripped breaker Reset Check...

Page 20: ...ed before servicing the machine 1 Disconnect the plug on the charger from the connector on the back of the machine See figure 1 2 Join the connector from the batteries 1 to the control panel cable connection See figure 1 3 Make sure the recovery tank lid is on correctly See figure 2 4 Make sure the Screen filter over the vacuum motor is clean and in position See figure 2 a 5 Make sure the valves o...

Page 21: ...ot enter the opening for the vacuum motor See figure 2 3 If a tank or drain hose has an obstruction use a high pressure water hose to flush the tank or hose Put the water hose into the drain hose 4 Leave the tanks and the drain valves open to dry in the air 5 Check the squeegee blade Use a cloth to clean the squeegee blade If the squeegee blade is damaged or worn turn or replace the blade 6 Check ...

Page 22: ...installa tion WARNING Always wear eye protection and pro tective clothing when working near batteries NO SMOKING 1 To inspect batteries tip up recovery tank and latch the stop to hold the tank up See Figure 7 2 Disconnect the batteries Use a cloth and a solution ofammoniaorbicarbonateofsodatowipethetopofthe batteries Cleanthebatteryterminals Reconnectthe batteries 3 Check the hoses for leaks obstr...

Page 23: ...rease the pressure loosen the bolt and slide squeegeemountup Adjusting Squeegee Tilt The tilt of the squeegee causes the rear blade to raise up in the center or on the ends depending on which direction the tilt is changed For tilt adjustment refer to figure 11 Loosen left and right screw X In order to bring the rear blade down in the center tip Y down To bring both ends down tip Y up Make very sma...

Page 24: ...ng Squeegee Support Wheels The support wheels should be set at 12 above the floor with the rear blade touching the floor See figure 12 WARNING Maintenance and repairs must be done by authorized personnel only WARNING Electrical repairs must be done by authorized personnel only Consult your Clarke Technology Authorized Service Person to do the service procedures Use only genuine Clarke Technology p...

Page 25: ...e Machine 871335 Battery 195 AH Dry 12 Volt 2 51453D PadDriver 40513A 24 VDC 25 Amp 230V 50 Hz Battery Charger 00885A Breakdown 00880A Encore L20 Base Machine 871376 Battery 95 AH Wet 12 Volt 2 51447D 20 Polypropylene Brush 40520A 24 VDC 8 Amp 115 60 Hz Battery Charger 00886A Breakdown 00880A Encore L20 Base Machine 871376 Battery 95 AH Wet 12 Volt 2 51453D PadDriver 40520A 24 VDC 8 Amp 115 60 Hz ...

Page 26: ...0513A 24 VDC 25 Amp 230V 50 Hz Battery Charger 00894A Breakdown 00890A Encore S20 Base Machine 871335 Battery 195 AH Dry 12 Volt 2 51453D PadDriver 40513A 24 VDC 25 Amp 230V 50 Hz Battery Charger 00895A Breakdown 00890A Encore S20 Base Machine 871376 Battery 95 AH Wet 12 Volt 2 51447D 20 Polypropylene Brush 40520A 24 VDC 8 Amp 115V 60 Hz Battery Charger 00896A Breakdown 00890A Encore S20 Base Mach...

Page 27: ...utch Plate 30034A 58530A Clutch Plate Screws 962819 ClutchPlateNuts 80084A Grit Brush Dual Direction 51450D Poly Brush Dual Direction 51447D Clean Grit Dual Direction 51474D Nylon Brush 016 Dual Direction 51482D Grit Lite Dual Direction 51484B Kit Conversion from metal to Dual Direction Clutch Plate 10055A Power Wand Kit 10662A ESP Recycle System Kit 10663A Clarke Care Kit 14607A Hour Meter Kit 10...

Page 28: ...Page 68 CLARKE TECHNOLOGY Operator s Manual Encore S20 L20 CLARKETECHNOLOGY EncoreL20 Connection Diagram 00880A W 2 04 for machines with a 41150C traverse controller BRN ...

Page 29: ...verige AB Molndal Sweden Aminogatan 18 Box 4029 S 431 04 Molndal 46 31 706 73 00 ALTO Norge A S Oslo Norway Bjornerudveien 24 N 1266 47 2275 1770 U S A Locations European Locations CORPO PRODUCTION FACILITIES Clarke Springdale Arkansas 2100 Highway 265 Springdale Arkansas 72764 479 750 1000 Customer Service 1 800 253 0367 Technical Service 1 800 356 7274 American Lincoln Bowling Green Ohio 43402 1...

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