Clarke EXT 311 Bedienungsanleitung

Operator's Manuals

EXT 311

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EXT 515

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Form No. 70471A 11/02 Clarke®Printed in the U.S.A.

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 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 your 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: Clarke®, 2100 Highway 265, Springdale, Arkansas 72764.

Operator's

Manual

EXT 311

Extractor

Division of

Page 2 Clarke®Ext -311 Owner's Manual

CONTENTS OF THIS BOOK

Operator Safety Instructions .................................................................................. 1

Introduction and Machine Specifications .................................................................. 2

Controls and Machine Features ............................................................................... 3

How to Prepare the Machine for Operation .............................................................. 4

Instructions for Connection to the Power Supply - 120V

Extension Cords - 120V ............................................................................. 5

Instructions for Connection to the Power Supply - 230V

Extension Cords - 230V .......................................................................................... 6

Machine Operating Instructions ............................................................................... 7

How to Clean an Area of Carpet .................................................................. 7

How To clean a Larger Area of Carpet ......................................................... 7

Maintenance ........................................................................................................... 8

After Each Use of the Machine ................................................................... 8

How to Prevent Damage from Freezing Temperatures ................................. 9

The Pump and Vacuum Motor ................................................................... 9

How To Check The Commutator and The Carbon Brushes .......................... 10

How to Correct Problems in the Machine ................................................................. 11

Machine Variables and Accessories ........................................................................ 12

Ext-311 Assembly Drawing .................................................................................... 14

Parts List ................................................................................................ 15

Ext -311 Base Assembly Drawing ........................................................................... 16

Parts List ................................................................................................ 17

Ext-311 Solution Tank Assembly Drawing & Parts List ........................................... 18

Ext-311 Hose Assembly Drawing & Parts List ......................................................... 19

Ext-311 Pump Drawing & Parts List ........................................................................ 20

Motor Drawing & Parts List 120V ............................................................................ 21

Motor Drawing & Parts List 230V ............................................................................ 22

Electrical Schematic 120V ...................................................................................... 23

Wiring Diagram ....................................................................................................... 24

Electrical Schematic 230V ...................................................................................... 25

Wiring Diagram ....................................................................................................... 26

Clarke®

Ext- 311 Owner's Manual Page 3

OPERATOR SAFETY INSTRUCTIONS

WARNING AVERTISSEMENT ADVERTENCIA

For the safe operation of this machine, read and understand all warnings and cautions.

DANGER means: Severe bodily injury or death can occur to you or other personnel if

the DANGER statements found on your machine or in your Owner's

Manual are ignored or are not adhered to. Read and observe all

DANGER statements found in your Owner's Manual and on your

machine.

WARNING means :Injury can occur to you or to other personnel if the WARNING

statements found on your machine or in your Owner's Manual are

ignored or are not adhered to. Read and observe all WARNING

statements found in your Owner's Manual and on your machine.

CAUTION means:Damage can occur to the machine or to other property if the

CAUTION statements found on your machine or in your Owner's

Manual are ignored or not adhered to. Read and observe all

CAUTION statements found in your Owner's Manual and on

your machine.

DANGER: Machines can cause an explosion when operated near flammable materials and vapors. Do not

use this machine with or near fuels, grain dust, solvents, thinners, or other flammable materials.

DANGER: Do not immerse. To reduce the risk of an electric shock, use only on a carpet that has been

moistened by a cleaning process. Protect the machine from rain. Keep the machine in a dry

building. Always clean the machine with a clean dry cloth.

WARNING: You must have training in the operation of this machine before using it. READ THE

INSTRUCTION BOOK FIRST.

WARNING: Always use a three-wire electrical system connected to the electrical ground. For maximum

protection against electric shock, use a circuit that is protected by a ground fault circuit

interrupter. Consult your electrical contractor.

WARNING: To prevent electric shock, always remove the electrical plug from the electrical outlet before

doing any repairs or maintenance to this machine.

WARNING: Do not use this machine as a step or furniture. Injury could occur to the operator.

WARNING: To avoid serious injury, use proper lifting procedures when lifting the machine.

WARNING: Maintenance and repairs must be done by authorized personnel only.

WARNING: Keep all fasteners tight. Keep the adjustments according to specifications.

WARNING: Make sure that all the labels, decals, warnings, cautions and instructions are fastened to the

machine. Replace them when necessary by ordering them from Clarke.

WARNING: Do not use water that is hotter than 140°F (60°C).

WARNING: If foam/liquid comes out, switch machine off immediately.

Page 4 Clarke®Ext -311 Owner's Manual

OPERATOR SAFETY INSTRUCTIONS (CONT.)

WARNING: Improper discharge of waste water may damage the environment and be illegal. The

United States Environmental Protection Agency has established certain regulations

regarding discharge of waste water. Also, city and state regulation regarding this

discharge may be in effect in your area. Understand and follow the regulations in your

area. Be aware of the environmental hazards of chemicals that you dispose.

CAUTION: To prevent damage to the power cord, do not move this machine over the power cord,

instead, lift the power cord over the machine. If the cord supplied is damaged, it must

be replaced by the manufacturer, its service agent or a similarly qualifed person in

order to avoid the hazard.

CAUTION: To prevent damage to the power cord and hoses, do not use the power cord or hoses

to pull the machine.

Model EXT-311 Plus EXT-311 CE

Code Number 04090A 04095A

Electrical 120 V 60 Hz 230V 50/Hz.

Current (Amps) 8.5 6

Solution Pump Pressure 100 psi 6.8 bar

Solution Tank Capacity 11 gal 41.6 liters

Recovery Tank Capacity 3 gal 11.4 liters

Solution Flow per minute 2.0 gallons 7.6 liters

Vacuum Motor Power 1 hp 0.74 kW

Power Cable Length 35' 10 m

Wheels, Number-Diameter 4 - 2" 4 - 51 mm

Dimensions (LxWxH) 25"L x 17½"W x 22¼"H 63.5cm x 44.5cm x 56.5cm

Weight 40 lbs. 18 kg

Shipping Weight 45 lbs. 20 kg

Warranty 1 year 1 year

Sound Level (dBA) - <70

•The Model 311 is an extractor for cleaning carpet. When used with a floor tool, the machine applies cleaning

solution to the carpet and removes the dirty solution and soil from the carpet.

•The extractor has controls to start the pump for the solution and the motor for the vacuum. The floor tools

have controls to release the solution and to operate the brush.

•The extractor has a demand pump. The pump starts when the solution lever on the floor tool is activated.

The pump stops when the lever is released.

NOTE: When using the extractor to clean carpets, follow this procedure:

1. Do not walk on freshly cleaned carpets for at least four hours or until the carpet is dry to touch.

2. Do not remove aluminum or plastic pieces that have been placed under the legs of furniture until

the carpet is dry.

3. Do not allow children or pets to crawl or walk around on the damp carpet.

4. Vacuum right after the carpet is dry and then vacuum the carpet once a week as needed.

INTRODUCTION and MACHINE SPECIFICATIONS

Clarke®

Ext- 311 Owner's Manual Page 5

CONTROLS and MACHINE FEATURES

The Vacuum Motor Switch

The vacuum motor switch is on the back of the machine.

Put the switch in the "I" position to start the motor. Put the

switch in the "O" position to stop the motor.

The Switch To Activate The Pump

The switch to start/stop the pump motor is on the back of

the machine. Put the switch in the "I" position to start the

pump motor. Press the lever on the floor tool to start the

solution flow. Release the levers on the floor to stop the

solution flow. Put the switch in the "O" position to stop the

pump motor.

NOTE: While the machine is in operation, the pump

will shut-off automatically when it reaches full pres-

sure. The pump will automatically turn on when the

pressure decreases.

The Float Shut-Off See figure 1

The float shut-off is in the recovery tank. When the liquid

raises the float, the air stops moving through the machine.

The Vacuum Hose Connector See figure 2

The vacuum hose connector is on the dome assembly.

The Solution Hose Connector See figure 3

The solution hose connector is on the lower part of the

extractor, below the vacuum hose connector.

The Recovery Tank

The recovery tank is in the top of the machine. Make sure

the white pail is in the tank when the machine is running.

The Solution Tank

The solution tank is in the top of the machine next to the

recovery tank.

Figure 1

Figure 2

Figure 3

Page 6 Clarke®Ext -311 Owner's Manual

HOW TO PREPARE THE MACHINE FOR OPERATION

To prepare the machine for operation, follow this procedure:

1. Connect the vacuum hose to the hose connector

on the extractor and to the end of the vacuum tube

on the floor tool.

2. Connect the solution hose to the extractor and the

floor tool. To fasten the quick disconnect fitting,

slide the knurled collar on the female coupling away

from the opening. Push the male coupling into the

female coupling. See figure 4

WARNING: Do not use water that is hotter than

140°F (60°C).

3. Before moving the extractor onto the carpet, put

clean hot water into the solution tank.

4. Add a cleaning chemical, such as Clarkare®Ex-

tractor Concentrate, to the hot water. For the

correct amount, follow the directions shown on the

container.

5. If the extractor removes an excess amount of foam

from the carpet, add a de-foamer such as Clarkare®

De-foamer Concentrate to the recovery tank. The

amount needed will vary according to the amount of

detergent already in the carpet.

CAUTION: To prevent damage, use a water-

based de-foamer rather than an oil-

based de-foamer.

CAUTION: Do not leave the extractor or other

cleaning machines or tools on the

carpet when not in use. Cleaning

solution in the machines and tools

can leak onto the carpet and cause

light spots or stains.

NOTE: To order Clarkare®Extractor Concentrate, order

part no. 398421. To order Clarkare®Defoamer,

order part no. 398420.

For instructions for preparation and operation of your floor

tool or power brush tool, read the operator's manual given

with your floor tool or power brush tool.

Figure 4

Clarke®

Ext- 311 Owner's Manual Page 7

INSTRUCTIONS FOR CONNECTION TO THE

POWER SUPPLY AND ELECTRICAL GROUND - 120 V

CAUTION: This machine will operate only on an AC

frequency and on the specified electrical

voltage shown on the nameplate. Make

sure you have the correct frequency and

voltage before connecting the power

cord to an outlet.

This machine must be connected to an electrically ground

circuit in order to protect the operator from electric shock. This

machine has an approved power cord with three conductors as

well as a plug with three terminals. Connect the plug to a three

holed receptacle. For maximum protection against electric

shock, use a circuit that is protected by a ground fault circuit

interrupter.

This machine uses a 120 volt AC 50/60 cycle electrical circuit.

Make sure you have the correct frequency and voltage before

connecting the power cord to an outlet. The machine has a plug

as shown in Figure 5. If a receptacle connected to the electrical

ground as shown in Figure 5 is not available, contact an

electrical contractor. Do not us an adapter.

WARNING: To prevent possible electric shock, pro-

tect the machine from rain. Keep the

machine in a dry building.

WARNING: To prevent possible electric shock, al-

ways use a 3-wire electrical system con-

nected to the electrical ground. For

maximum protection against electrical

shock, use a circuit that is protected by a

ground fault circuit interrupter. Consult

your electrical contractor.

WARNING: Do not cut, remove, or break the ground

pin. If the outlet does not fit the plug,

consult your electrical contractor.

WARNING: If the cords or plugs are worn or dam-

aged in any way, have them replaced by

an authorized service person.

Extension Cords

Use only an approved extension cord with three conductors, a

plug with three terminals and a three-holed connector body.

This machine has a power cord with a wire size of 16 AWG.

(AWG stands for American Wire Gauge).

CAUTION: If you use an extension cord, use one that

has a minimum wire size of 14 AWG. Be

sure your extension cord is no longer

than 50 ft. Do not join two extension

cords.

Figure 5

Plate

Screw

Outlet must be

connected to

the electrical

ground

Ground Pin

Page 8 Clarke®Ext -311 Owner's Manual

INSTRUCTIONS FOR CONNECTION TO THE

POWER SUPPLY AND ELECTRICAL GROUND - 230 V

CAUTION: This machine will operate only on an AC

frequency and on the specified electrical

voltage shown on the nameplate. Make

sure you have the correct frequency and

voltage before connecting the power cord

to an outlet.

This machine must be connected to an electrical ground circuit

in order to protect the operator from electric shock. This

machine has an approved power cord with two main conductors

and one earthing conductor. Connect the plug to the type of

receptacle shown in figure 6. The green and yellow conductor

in the cord is the ground wire. Never connect this wire to any

terminal other than the ground terminal.

WARNING: Always use this machine with an AC

three-conductor electrical system con-

nected to the electrical ground. Replace

any worn, cut or damaged cords. Re-

place any damaged plugs, receptacles, or

connector bodies. Do not move the

machine over an electrical cord. Always

lift the cord over the machine.

Extension Cords

Use only an approved extension cord with two main conductors,

and one earthing conductor. This machine has a power cord

with a wire size of 1.5mm2.

WARNING: If you use an extension cord, use one that

has a minimum wire size of 1.5mm2. Be

sure your extension cord is no longer

than 15 meters. Do not join two extension

cords.

WARNING: Do not cut, remove or break the ground

terminal. Do not try to fit a three-terminal

plug into a receptacle or connector body

that does not fit the plug. If the receptacle

or connector body does not fit the plug,

see your authorized Clarke Dealer to get

an authorized person to make the con-

nection.

Figure 6

Pin Earthing Contact

Side Earthing Contact

European Plug

Clarke®

Ext- 311 Owner's Manual Page 9

MACHINE OPERATING INSTRUCTIONS

How to Clean an Area of Carpet See Figure 7

WARNING: Do not use water that is hotter

than 140°F (60°C).

To clean an area of carpet, follow this procedure:

1. Start the pump for the solution and the motor for the

vacuum on the extractor.

2. Begin at the right-hand corner of the carpet.

3. Hold the floor tool at the angle that gives the best

vacuum seal between the tool and the carpet.

4. Apply pressure to the lever for solution release. Pull

the tool toward you at a slow, steady speed. To

remove as much solution as possible, release the

lever before you stop moving backward.

5. To clean the edge of a room, move the tool along the

baseboard until the edge of all the carpet is cleaned.

6. To clean a small area of carpet, clean the carpet in

sections three feet square. As you make more

passes, repeat one inch of the area already cleaned.

7. To remove more liquid from the carpet, make passes

over the area already cleaned, but do not apply

pressure to the lever for the solution.

How To Clean A Larger Area Of Carpet See Fig. 8

To clean a larger area of carpet, follow this procedure:

1. Begin at the right-hand corner of the carpet.

2. Make a pass halfway along the edge of the carpet.

Pull the tool backward at a steady speed.

3. Move to the edge of the carpet. Make another pass

next to your first pass.

4. As you make more passes, repeat one inch of the

area already cleaned. If you use a power brush tool,

repeat one inch of the area already cleaned by the

brush. Make each pass four inches different in length

to prevent making a line in the center of the carpet.

5. Make more passes until half of the carpet is cleaned.

To remove more liquid from the carpet, make passes

over the area already cleaned, but do not apply

pressure to the lever for the solution.

6. Move to the right-hand corner of the part of the carpet

not yet cleaned.

7. Make a pass halfway along the edge of the carpet.

8. As you make passes, repeat one inch of the area

already cleaned.

9. Make more passes until all of the room is cleaned.

CAUTION: Clarke will not be held liable for

damage to the carpet, or poor re-

sults because of the operator's lack

of ability.

Figure 7

Figure 8

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