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ENCORE
S17 / L17
Operator's
Rotary/
Manual
Cylindrical
U.S. Patent No. 5,383,251; 6,105,192; No. 6,557,207; No. 6,760,947 and other Patents Pending
READ THIS BOOK
CAUTION: Read the Operator's Manual before using the appliance.
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 Clarke 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 this manual, have it 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: Clarke
®
, 2100 Highway 265, Springdale, Arkansas 72764.
®
Clarke
Form No. 70483A 2/05
Printed in the U.S.A.

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Summarization of Contents

Operator Safety Instructions
DANGER Statements and Consequences
Explains severe injury or death from ignoring DANGER statements.
WARNING Statements and Consequences
Explains injury or property damage from ignoring WARNING statements.
CAUTION Statements and Consequences
Explains machine or property damage from ignoring CAUTION statements.
Importance of Reading Manual and Training
Emphasizes reading the manual and proper training for safe operation.
Machine Assembly and Inspection Safety
Warns against operating an incomplete machine and stresses inspection.
Flammable Materials and Explosion Hazard
Warns about explosion risk near flammable materials and vapors.
Battery Explosion Hazard and Charging Safety
Discusses explosion risk from battery gases and safe charging practices.
Battery Handling Safety Precautions
Outlines safety measures for working with batteries, including PPE.
Charger Cord Safety
Warns about electrocution risk from damaged charger power cords.
Safe Operating Position
Instructs to operate the machine only from the rear for safety.
Machine Weight and Transport Safety
Advises on safe lifting, moving, and transporting heavy machines.
Machine Stability and Toppling Hazards
Warns about toppling hazards on edges, stairs, or docks.
Unauthorized Maintenance Warning
States that maintenance and repairs must be done by authorized personnel.
Machine Alteration Warning
Warns that unauthorized modifications void warranty and can cause injury.
Electrical Component Moisture Hazard
Advises keeping electrical components dry and using the machine for dry use only.
Machine Label and Instruction Compliance
Stresses the importance of observing all labels and instructional information.
Wet Floor Surface Hazard
Warns about slippery wet floors and the need for caution signs.
Waste Water Discharge Regulations
Discusses environmental hazards and legal regulations for waste water discharge.
Brush Usage Safety
Advises to use only specified brushes for safety and performance.
Machine Usage Restrictions
Prohibits using the machine for moving objects or as furniture.
Genuine Parts Warranty Clause
States that using non-genuine parts voids the warranty.
Battery Disposal Requirements
Mandates environmentally acceptable disposal of lead acid batteries.
Machine Introduction
Introduction and Machine Specifications
Introduces the Encore S17/L17 automatic scrubbers and their basic features.
Procedures For Transporting
Loading Machine into Van or Truck
Step-by-step guide for safely loading the machine into a vehicle.
Transporting Machine Safely
Emphasizes safety precautions for moving the heavy machine.
Toppling Hazard During Transport
Warns about toppling hazards when moving the machine on ramps or docks.
Unloading Machine from Van or Truck
Detailed steps for safely unloading the machine from a vehicle.
Assistance Required for Unloading
Advises using two people to assist in moving the machine down a ramp.
Symbols Used on Encore S17 and L17
Warning Symbol
Identifies the general warning symbol used on the machine.
Power Symbol
Shows the symbol for the machine's power control.
Traverse Speed Control Symbol
Indicates the symbol for controlling traverse speed on L models.
Battery Meter Symbol
Shows the symbol representing the battery charge indicator.
Solution Control Symbol
Represents the symbol for adjusting solution flow.
Brush Up/Down Symbol
Symbol for controlling the brush head position.
Vacuum/Squeegee Control Symbol
Symbol for operating the vacuum and squeegee system.
AC Power Indicator Symbol
Symbol for the AC power indicator light.
Warning Label with Parking Brake
Displays the warning label featuring parking brake information.
Warning Label without Parking Brake
Displays the warning label without parking brake information.
Machine Control Panel
Electrical Power Indicator
Explains the function and illumination of the electrical power indicator.
Key Switch Operation
Describes the use of the key switch for control panel activation and security.
Machine Power ON/OFF Buttons
Details how to turn the machine's control panel on and off.
Self-Diagnostics and Fault Reset
Explains self-diagnostic features and how to reset the machine.
Automatic Power Saving Feature
Describes the automatic shut-off feature for battery power saving.
Battery Meter Function
Explains the battery meter's indication of charge level and function cutoff.
Control Handle Operation
Identifies the control handles and their purpose for guiding the machine.
Traverse Speed Control Knob
Details how to adjust the machine's traverse speed using the knob.
Forward/Reverse Switch Operation
Explains the function of forward/reverse switches for movement and brush activation.
Reverse Switch Function (L Models)
Describes the reverse switch's role in controlling machine direction on L models.
Brush Motor Control Buttons
Explains how to use buttons to lower/raise brush head and activate motors.
Solution Flow Control Buttons
Details how to regulate the flow of cleaning solution to the floor.
Vacuum Motor Activation
Explains how to activate the vacuum motor using the squeegee handle.
Circuit Breaker Locations and Functions
Identifies circuit breaker locations and their respective circuits.
Squeegee Lift Handle Operation
Explains the function of the squeegee lift handle for raising/lowering the squeegee.
Float Shut Off Mechanism
Describes the float shut-off switch in the recovery tank for vacuum motor.
Parking Brake Operation
Details the use of the parking brake for operating on gradients.
Parking Brake Usage Caution
Warns against activating the parking brake while the machine is in motion.
How To Prepare the Machine For Operation
Battery Information
Mentions the machine uses two 12-volt batteries located in the battery compartment.
Battery Installation Procedure
Step-by-step instructions for installing the machine's batteries.
Recovery Tank Handling Safety
Warns about potential injury from accidental closure of the recovery tank.
Battery Placement
Instructs on placing batteries into the designated compartment.
Battery Lifting Safety
Advises getting help to lift heavy batteries to prevent injury.
Battery Handling Safety Precautions
Recommends PPE and safety measures when working with batteries.
Recovery Tank Reinstallation
Details the correct procedure for reinstalling the recovery tank.
Secure Recovery Tank Installation
Warns about the recovery tank falling off if not installed correctly.
Hose Reconnection
Guides on reconnecting vacuum and squeegee hoses to the recovery lid.
Battery Charging Prior to Use
Instructs to charge batteries before operating the machine.
Battery Maintenance
Electrolyte Level Maintenance
Explains how to check and maintain the correct electrolyte level in batteries.
Electrolyte Level Damage Warning
Warns of irreversible battery damage if electrolyte levels are incorrect.
Battery Overfilling Caution
Advises against overfilling batteries to prevent damage and discharge.
Distilled Water Requirement for Batteries
States that only distilled water should be used for refilling batteries.
Battery Terminal and Top Cleaning
Details cleaning procedures for battery tops, terminals, and connectors.
Battery Charging
Emphasizes the importance of keeping batteries charged.
Battery Compartment Draining Procedure
Provides steps for draining the battery compartment, including safety measures.
How To Charge The Batteries
Battery Charging Ventilation Hazard
Warns of explosion risk due to inadequate ventilation during charging.
Battery Gas Explosion Hazard
Highlights the explosion risk from battery gases and advises safety measures.
Charging Location Requirements
Specifies requirements for the charging location, including ventilation.
Powering Down for Charging
Instructs on how to turn off the machine's control panel before charging.
Battery Compartment Venting
Explains the need to prop open the recovery tank to vent the battery compartment.
Recovery Tank Venting Safety
Reiterates safety precautions for handling the recovery tank during venting.
On-Board Charger Description
Describes the location and type of the machine's on-board charger.
Charger Connection
Details how to connect the charger to a wall receptacle.
Three-Stage Battery Charging Process
Explains the bulk, absorption, and float stages of the charging sequence.
Absorption Stage of Charging
Describes the absorption stage where voltage is maintained for full charge.
Float and Maintenance Stage of Charging
Explains the float stage for maintaining full charge without overcharging.
Charger Cord Storage
Instructs to unplug and store the charger cord after charging.
Securing Machine After Charging
Details actions to take after charging is completed.
Brush Housing Assembly Removal
Provides instructions on when and how to remove the brush housing assembly.
Installing Rotary Brush or Pad Driver
Step-by-step guide for installing brushes or pad drivers.
Assembled Machine Operation Warning
Warns against operating an improperly assembled machine.
How To Prepare the Machine For Operation
Removing Rotary Brush or Pad Driver
Step-by-step instructions for removing brushes or pad drivers.
Changing or Rotating Cylindrical Brushes
Provides steps for installing or rotating cylindrical brushes.
Machine Assembly Check Before Operation
Reiteration of the danger of operating an incomplete machine.
How To Operate The Machine
Squeegee Operation
Explains how to lower and raise the squeegee for floor wiping.
Squeegee Center Position Function
Describes the function of the squeegee lever's center position.
Filling the Solution Tank
Step-by-step instructions for filling the machine's solution tank.
Wet Floor Hazard During Cleaning
Warns about slippery wet floors created by cleaning solutions.
Flammable Material Hazard During Operation
Warns against using flammable materials with the machine.
Water Temperature Recommendation
Advises on the maximum recommended water temperature for operation.
Basic Machine Operation
Provides initial steps for operating the machine in a safe area.
Initial Traverse Speed Setting
Instructs to set the traverse speed to the lowest setting for initial operation.
Machine Movement Procedure
Outlines the steps required to move the machine.
Straight Line Machine Movement
Instructs to move the machine in a straight direction.
Safe Machine Stopping
Details how to safely stop the machine.
Machine Turning Procedure
Guides on turning the machine left and right.
Floor Cleaning Procedure
Step-by-step instructions for cleaning a floor with the machine.
Wet Floor Hazard during Cleaning
Reiteration of the wet floor hazard warning.
Brush Pressure Adjustment
Explains how to adjust brush pressure for optimal cleaning.
Brush Pressure Impact on Performance
Warns about the impact of brush pressure on breaker tripping and traction.
Continuous Brush Rotation Operation
Advises keeping the machine moving while the brush is rotating.
Pre-wetting Brushes
Describes the process of pre-wetting brushes before operation.
Cleaning Very Dirty Floors
Specific procedure for cleaning heavily soiled floors.
Maintenance
Authorized Maintenance Requirement
States that maintenance and repairs must be performed by authorized personnel.
Emptying Tanks Before Maintenance
Emphasizes emptying tanks before performing any maintenance.
Fastener Tightness Check
Advises ensuring all fasteners are kept tight.
Daily Maintenance Procedures
Lists maintenance tasks to be performed daily for machine longevity.
Pre-Work Period Maintenance Checks
Outlines essential checks and procedures before starting work.
Disconnecting AC Power
Instructs to disconnect AC power from the charger before maintenance.
Charger Cord Storage
Details storing the AC power cord in the machine's storage compartment.
Recovery Lid Screen Filter Check
Ensures the recovery lid screen filter is properly installed and clean.
Recovery Tank Lid Check
Verifies that the recovery tank lid is correctly positioned.
Recovery Drain Hose Valve Check
Ensures the recovery drain hose valve is clean and tightly closed.
Brush/Pad Installation Check
Verifies the correct positioning and installation of the brush or pad.
Brush Housing and Skirt Check
Confirms that the brush housing and skirts are correctly positioned.
Squeegee and Hose Installation Check
Verifies the correct installation of the squeegee and its hose.
Solution Hose Securement
Ensures the solution drain/level indicator hose is properly secured.
Post-Work Maintenance Procedures
Lists essential procedures to perform after completing work.
Draining Solution and Recovery Tanks
Details the process for draining both the solution and recovery tanks.
Flushing Tanks
Provides instructions for flushing the tanks with clean water.
Clearing Tank/Hose Obstructions
Explains how to use a pressure hose to clear obstructions.
Drying Tanks and Valve
Instructs to leave tanks and drain valve open for air drying.
Squeegee Blade Inspection and Cleaning
Details how to inspect, clean, turn, or replace the squeegee blade.
Recovery Lid Gasket Cleaning
Guides on cleaning the recovery lid gasket with a mild solution.
Debris Tray Emptying (Cylindrical Brush)
Explains how to empty the debris tray on machines with cylindrical brush heads.
Battery Water Check After Charging
Advises checking battery water levels and adding distilled water if needed.
Tap Water Battery Damage Warning
Warns that tap water can damage batteries and only distilled water should be used.
Battery Gas Explosion Hazard Warning
Reiteration of the explosion hazard from battery gases.
Battery Charging Reference
Directs users to the relevant section for battery charging instructions.
Weekly Maintenance Procedures
Lists maintenance tasks to be performed on a weekly basis.
Authorized Personnel for Maintenance
Reemphasizes that maintenance and repairs require authorized personnel.
Tank Emptying Before Maintenance Reminder
Reminds users to empty tanks before performing maintenance.
Battery Work Safety Precautions
Stresses wearing PPE when working near batteries.
Battery Filling and Discharge Caution
Warns against overfilling batteries and potential discharge hazards.
Machine Shutdown for Servicing
Instructs to always turn off the machine before performing any service.
Battery Work Safety and No Smoking
Reinforces safety gear and prohibition of smoking when near batteries.
Recovery Tank Emptying for Service
Emphasizes emptying the recovery tank before servicing.
Battery Disconnection and Cleaning
Details disconnecting batteries and cleaning terminals.
Hose Inspection
Instructs to check all hoses for leaks, obstructions, or damage.
Brush Drive Belt Tension Check
Explains how to check and adjust the tension of brush drive belts.
Maintenance For The Squeegee
Removing the Squeegee
Step-by-step instructions for removing the squeegee assembly.
Squeegee Blade Inspection
Guides on inspecting the squeegee blade for wear.
Rotating Worn Squeegee Blade
Explains how to turn a worn squeegee blade for continued use.
Reinstalling the Squeegee
Details the process of reinstalling the squeegee assembly.
Squeegee Adjustment Guide
Explains how to adjust the squeegee for optimal performance.
Adjusting Squeegee Tilt
Provides instructions on how to adjust the squeegee's tilt angle.
Adjusting Squeegee Blade Height
Details the correct height adjustment for squeegee blades.
Authorized Maintenance for Squeegee
Reiterates that squeegee maintenance requires authorized personnel.
Authorized Electrical Repairs
States that electrical repairs must be performed by authorized personnel.
Service Procedure Consultation
Advises consulting authorized service personnel for procedures.
Genuine Parts Usage
Emphasizes using only genuine Clarke parts for repairs.
Accessories
Clarke Care Kit
Lists the Clarke Care Kit and its part number.
29" Squeegee Assembly
Lists the 29" Squeegee Assembly and its part number.
32" Squeegee Assembly
Lists the 32" Squeegee Assembly and its part number.
Rotary Disk Brushes and Pad Assemblies
Lists available rotary disk brushes and pad assemblies with part numbers.
Cylindrical Brushes
Lists available cylindrical brushes with part numbers.
29" Squeegee Blades
Lists available 29" squeegee blades with part numbers.
32" Squeegee Blades
Lists available 32" squeegee blades with part numbers.
How to Correct Problems in the Machine
No Solution Flow Troubleshooting
Provides causes and actions for when there is no solution flow.
Solution Flow Not Stopping Troubleshooting
Addresses issues where solution flow fails to stop.
Water Removal Issues Troubleshooting
Details problems related to the machine not removing all water from the floor.
Battery Running Time Issues Troubleshooting
Covers troubleshooting for batteries not providing normal running time.
Uneven Cleaning Troubleshooting
Addresses causes and solutions for uneven cleaning performance.
Machine Not Running Troubleshooting
Provides troubleshooting steps for when the machine fails to run.
Machine Power Loss Troubleshooting
Covers troubleshooting for the machine losing power.
Final Assembly Diagram
Final Assembly Parts List
Lists parts for the machine's final assembly with reference numbers.
Recovery Tank Assembly Diagram
Recovery Tank Parts List
Lists parts for the recovery tank assembly with reference numbers.
Solution Tank and Front Cover Diagram
Solution Tank and Front Cover Parts List
Lists parts for the solution tank and front cover assembly.
Electrical Assembly Diagram
Electrical Parts List
Lists parts for the electrical assembly with reference numbers.
Control Housing Assembly Diagram
Control Housing Parts List
Lists parts for the control housing assembly with reference numbers.
Squeegee Lift Assembly Diagram
Squeegee Lift Parts List
Lists parts for the squeegee lift assembly with reference numbers.
32" Squeegee Assembly Diagram
32" Squeegee Parts List
Lists parts for the 32" squeegee assembly with reference numbers.
Frame Assembly Diagram
Frame Parts List
Lists parts for the frame assembly with reference numbers.
Cylindrical Head Assembly Diagram
Cylindrical Head Parts List
Lists parts for the cylindrical head assembly with reference numbers.
Rotary Disk Head Assembly Diagram
Rotary Disk Head Parts List
Lists parts for the rotary disk head assembly with reference numbers.
Gearbox Assembly and Parts List
Gearbox Assembly and Parts List
Exploded view diagram and parts list for the gearbox assembly.
Brush Motor Assembly and Parts List
Brush Motor Assembly and Parts List
Exploded view diagram and parts list for the brush motor assembly.
Encore S17 Connection Diagram
Main Frame Connections
Shows wiring connections for the main frame components.
Control Panel Connections
Details wiring connections for the control panel.
Electrical Panel Connections
Illustrates wiring connections for the electrical panel.
Control Housing Connections
Shows wiring connections for the control housing.
Brush Motor Connections
Wiring connections for rotary and cylindrical brush motors.
Solution Tank Connections
Wiring connections for the solution tank components.
Recovery Tank Connections
Wiring connections for the recovery tank float switch.
Optional Hour Meter Connections
Wiring for the optional hour meter in the control housing.
Encore S17 Electrical Schematic
Battery Connections
Shows the DC battery power connections.
On-Board Charger Schematic
Details the wiring schematic for the on-board charger.
Optional Hour Meter Schematic
Shows the schematic for the optional hour meter.
Float Switch Schematic
Wiring schematic for the float switch.
Vacuum Solenoid Schematic
Wiring schematic for the vacuum solenoid.
Solution Valve Schematic
Wiring schematic for the solution valve.
Brush Solenoid Schematic
Wiring schematic for the brush solenoid.
Forward Touch Switches Schematic
Wiring schematic for the forward touch switches.
Brush Switch Schematic
Wiring schematic for the brush switch.
Control Panel and Controller Schematic
Detailed wiring schematic for the control panel and controller.
Brush Motor Schematic
Wiring schematic for the brush motors.
Brush Head Actuator Schematic
Wiring schematic for the brush head actuator.
Vacuum Motor Schematic
Wiring schematic for the vacuum motor.
Encore L17 Connection Diagram
Main Frame Connections (L17)
Wiring connections for the main frame components on L17 model.
Control Panel Connections (L17)
Details wiring connections for the control panel on L17 model.
Electrical Panel Connections (L17)
Illustrates wiring connections for the electrical panel on L17 model.
Control Housing Connections (L17)
Shows wiring connections for the control housing on L17 model.
Brush Motor Connections (L17)
Wiring connections for brush motors on L17 model.
Solution Tank Connections (L17)
Wiring connections for solution tank components on L17 model.
Recovery Tank Connections (L17)
Wiring connections for recovery tank float switch on L17 model.
Optional Hour Meter Connections (L17)
Wiring for optional hour meter on L17 model.
Encore L17 Electrical Schematic
Battery Connections (L17)
Shows DC battery power connections for L17 model.
On-Board Charger Schematic (L17)
Wiring schematic for the on-board charger on L17 model.
Optional Hour Meter Schematic (L17)
Schematic for the optional hour meter on L17 model.
Float Switch Schematic (L17)
Wiring schematic for the float switch on L17 model.
Vacuum Solenoid Schematic (L17)
Wiring schematic for the vacuum solenoid on L17 model.
Solution Valve Schematic (L17)
Wiring schematic for the solution valve on L17 model.
Brush Solenoid Schematic (L17)
Wiring schematic for the brush solenoid on L17 model.
Forward Touch Switches Schematic (L17)
Wiring schematic for forward touch switches on L17 model.
Reverse Touch Switch Schematic (L17)
Wiring schematic for the reverse touch switch on L17 model.
Control Panel & Controller Schematic (L17)
Detailed wiring schematic for the control panel and controller on L17 model.
Brush Motor Schematic (L17)
Wiring schematic for brush motors on L17 model.
Traverse Motor Schematic (L17)
Wiring schematic for the traverse motor on L17 model.
Vacuum Motor Schematic (L17)
Wiring schematic for the vacuum motor on L17 model.
Clarke Limited U.S. Warranty
Parts and Service Labor Warranty
Details the warranty period for parts and service labor.
Motor Brush Inspection Requirement
Explains the mandatory six-month inspection for motor brushes.
Battery Warranty Terms
Outlines the warranty terms and adjustment period for batteries.
Battery Warranty Void Condition
States that failure to maintain battery level voids the warranty.
Polydur Tank Guarantee
Covers the eight-year guarantee for Polydur solution and recovery tanks.
Unibody Frame Warranty
Details the eight-year warranty for the machine's unibody frame.
Warranty Limitations
Clarifies that stated warranties replace all other implied warranties.
Liability Limitation
States that Clarke's liability is limited to repair or replacement of parts.
No Express Warranties Beyond Specification
Confirms no express warranties exist beyond those explicitly stated.
Product Difficulty Resolution
Provides steps to follow if a problem develops with the product.

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