Operator's
Manual
STV-20
STV-20D
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 you cannot read English, have this manual explained fully before attempting to operate this machine.
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.
Form No. 78439A 1/07 CLARKE TECHNOLOGY Printed in the U.S.A.
Contents of this Book
Operator Safety Instructions ....................................................... 3
120V Instructions - Power Supply & Electrical Ground ............... 4
230V Instructions - Power Supply & Electrical Ground ............... 5
STV-20 Single Motor Head Assembly ......................................... 6
STV-20 Dual Motor Head Assembly ............................................ 7
Filter Bag and Float Assembly ..................................................... 8
Wet Vac Tools Parts List ............................................................. 8
Tank Assembly & Tilt & Pour Carriage Assembly ........................ 9
Squeegee Tool and Floor Brush Tool Parts List ........................ 10
Page -2 CLARKE TECHNOLOGY Operator's Manual STV-20/20D
WARNING
OPERATOR SAFETY INSTRUCTIONS
AVERTISSEMENT ADVERTENCIA
DANGER: Failure to read and observe all DANGER statements could result in severe bodily injury or death. Read and observe all DANGER statements found in your Owner's Manual and on your machine.
WARNING: Failure to read and observe all WARNING statements could result in injury to you or to other personnel; property damage could occur as well. Read and observe all WARNING statements found in your Owner's Manual and on your machine.
CAUTION: Failure to read and observe all CAUTION statements could result in damage to the machine or to other property. Read and observe all CAUTION statements found in your Owner's Manual and on your machine.
DANGER: Failure to read the Owner's Manual 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 you or your operator(s) cannot read English, have this manual explained fully before attempting to operate this machine.
DANGER: Operating a machine that is not completely or fully assembled could result in injury or property damage. Do not operate this machine until it is completely assembled. Inspect the machine carefully before operation. Use only as described in this manual. Use only Clarke's recommended attachments.
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: Using a machine with a damaged power cord could result in an electrocution. Do not use the machine if the power cord is damaged. Do not use the electrical cord to move the machine. Keep cord away from heated surfaces. Do not unplug by pulling on the cord; grasp the plug not the cord.
DANGER: Electrocution could occur if maintenance and repairs are performed on a unit that is not properly disconnected from the power source. Disconnect the power supply before attempting any maintenance or service.
WARNING: Operating a machine without observing all labels, decals, etc., could result in injury or damage. Read all machine labels before attempting to operate the machine. Make sure all of the labels are attached or fastened to the machine.
Get replacement labels and decals from your Clarke distributor.
WARNING: Electical components can "short-out" if exposed to water or moisture. Keep the electrical components of the machine dry. Always store the machine in a dry building.
WARNING: Use of this machine to move other objects or to climb on could result in injury to the operator or damage to the machine. Do not use this machine as a step or furniture.
Do not allow to be used as a toy. Close attention is necessary when used by or near children.
WARNING: Moving parts of this machine can cause injury and/or damage. Keep hands, feet, loose clothing, hair, fingers, and all parts of the body away from openings and moving parts.
CLARKE TECHNOLOGY Operator's Manual STV-20/20D Page -3-
WARNING: Electrocution could occur if you handle the plug or appliance with wet hands. Do not handle plug or appliance with wet hands.
WARNING: Damage could occur to machine if openings are blocked. Do not put any object into openings. Do not use with any opening blocked; keep free of dust, lint, hair, and anything that may reduce air flow.
WARNING: Injury could occur to the operator or the machine if used without the dust bag and/or filters.
Do not use the machine without the dust bag and/or filters in place.
WARNING: Injury to the operator and/or damage to the machine could occur when cleaning on stairs, unless extra caution is used. Use extra caution when cleaning on stairs.
WARNING: To prevent possible electrical shock, always use a 3-wire electrical system connected to the electrical ground. See "Grounding Instructions".
WARNING: To reduce the risk of fire, electric shock, or injury:
• Do not leave appliance when plugged in. Unplug from outlet when not in use and before servicing.
• Do not pick up anything that is burning or smoking, such as cigarettes, matches, or hot ashes.
• Turn off all controls before unplugging.
120 Volt Machine
Instructions For Connection
To The Power Supply
And The Electrical Ground
This machine must be connected to the electrical ground to protect the operator from electric shock. The machine has an approved power cord with three conductors and a plug with three terminals. Connect the plug to a receptacle that has three holes and is connected to the electrical ground. The green (or green and yellow) conductor in the cord is the ground wire.
Never connect this wire to any terminal other then the ground terminal.
This machine uses a 120 volt AC 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 1. If a receptacle connected to the electrical ground as shown in Figure 1 is not available, have one installed by an electrical contractor. Do not use an adapter.
WARNING: To prevent possible electric shock, protect the machine from rain. Keep the machine in a dry building.
WARNING: To prevent possible electric shock, always use a 3-wire elec trical system connected to the electrical ground.
WARNING: Do not cut, remove or break the ground pin. If the outlet does not fit the plug, consult your electrical contractor.
WARNING: Have worn, cut or damaged cords and plugs replaced by an authorized service person.
Ground Pin
Figure 1
Plate
Screw
Outlet must be connected to the electrical ground
Page -4 CLARKE TECHNOLOGY Operator's Manual STV-20/20D
230 Volt Machine
Instructions For Connection
To The Power Supply
And The Electrical Ground
This machine must be connected to the electrical ground to protect the operator from electric shock.
The machine has an approved power cord with two main conductors and one earthing conductor. Connect the plug to a receptacle as shown in Figure 2.
The green (or green and yellow) conductor in the cord is the ground wire. Never connect this wire to any terminal other then the ground terminal.
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 2. If a receptacle connected to the electrical ground as shown in Figure 2 is not available, have one installed by an electrical contractor. Do not use an adapter.
WARNING: This machine will operate only on AC frequency and electrical voltage shown on the nameplate. Make sure you have the correct frequency and voltage before connecting the power cord to an outlet. If you are not sure, consult your electrical contractor.
WARNING: Have worn, cut or damaged cords and plugs replaced by an authorized service person.
After using this machine, follow these instructions:
Store the cord on the hook.
Store the machine indoors away from sources of heat.
This machine is provided with an automatically reset thermal overload to avoid damage to the motor. If the thermal overload stops the motor unplug the machine and follow the procedures below:
Empty the vacuum tank.
Shake the filter bag to remove dust.
In a few minutes the thermal overload will allow restarting of the motor.
CLARKE TECHNOLOGY Operator's Manual STV-20/20D
Pin Earthing Contacts
European Plug
Side Earthing Contacts
Figure 2
Page -5-
Page -6-
10
11
4
3
2
1
18
24
25
26
33
34
35
CLARKE TECHNOLOGY STV-20
Single Motor Assembly Drawing & Parts List 1/98
5 6 7
21
22
23
27
28
30
40
41
31
32
36
37
38
39
16
17
19
20
8
9
12
13
14
15
Ref.
Part No.
Description
1 51841A Cord, Power
2 56448A Strain Relief
3 54503A Cord, Grip
4 56441A Screw, 5mm x 20mm
5 51869A Cord, Hook
6 88304A Screw 5mm x 50mm
7 54922A Handle, Lift
8 56482A Screw 5mm x 35mm
9 56441A Screw, 5mm x 20mm
10 88001A Screw, 5mm x 14mm
11 40409A Block, Terminal
12 88304A Screw, 5mm x 50mm
13 52765A Cover, Dome
14 56441A Screw, 5mm x 20mm
15 47316B Switch, Rocker
16 54064A Filter, Upper
17 88304A Screw, 5mm x 50mm
18 51872A Clip, Spring
19 57162A Plug, Upper
20 52799A Cover, Motor
21 56483A Screw, 5mm x 40mm
22 56483A Screw, 5mm x 40mm
23 58410A Support, Motor
24 58414A Screw, 5mm x 30mm
25 56442A Screw, 4.3mm x 19mm
26 50507A Block, Terminal
27 57877A Ring, Vac Motor
28 56441A Screw, 5mm x 20mm
30 54377A Gasket, Vac Motor
31 56039B Motor, Vac 115V
56046B Motor, Vac 230V
40834A Brush, Carbon 115V
40835A Brush, Carbon 230V
32 54377A Gasket, Vac Motor
33 56441A Screw 5mm x 20mm
34 54377A Gasket, Vac Motor
35 57163A Plug, Motor
36 54058A Foam, Triangle
37 54059A Filter
38 57164A Plug, Lower
39 50760A Base, Motor
40 59859A Washer, Star
41 56485A Screw, 4mm x 8mm
NI 59887A Wire, Connect
NI 52944A Clip
NI= Not Illustrated
1
1
4
1
1
1
1
1
3
1
1
9
1
2
1
9
2
1
2
1
2
1
2
4
4
1
2
1
Qty
1
1
1
1
1
2
1
4
2
3
3
2
2
1
8
1
1
CLARKE TECHNOLOGY Operator's Manual STV-20/20D
60
18
4
3
2
1
10
11
24
25
26
33
34
35
CLARKE TECHNOLOGY STV-20D
Dual Motor Head Assembly Drawing & Parts List 1/98
5 6 7
21
22
23
16
17
19
20
8
9
12
13
14
15
27
28
30
41
42
31
32
36
37
38
39
40
Ref. Part No.
Description
1 51841A Cord, Power
2 56448A Strain Relief
3 54503A Cord, Grip
6
7
4 56441A Screw, 5mm x 20mm
5 51869A Cord Hook
88304A
54922A
Screw, 5mm x 50mm
Handle, Lift
8
9
56482A Screw 5mm x 35mm
56441A Screw 5mm x 20mm
10 88001A Screw 5mm x 14mm
11 59112A Block, Terminal
12 88304A Screw, 5mm x 50mm
13 52763A Cover, Dome
14 56441A Screw, 5mm x 20mm
15 47393A Switch, Rocker
16 54064A Filter, Upper
17 88304A Screw, 5mm x 50mm
18 51872A Clip, Spring
19 57162A Plug, Upper
20 52799A Cover, Motor
21 56483A Screw, 5mm x 40mm
22 56483A Screw, 5mm x 40mm
23 58410A Support, Motor
24 58414A Screw, 5mm x 30mm
25 56442A Screw, 4.3 mm x 19mm
26 50761A Block, Terminal
27 57877A Ring, Vac Motor
28 56441A Screw, 5mm x 20mm
30 54377A Gasket, Vac Motor
31 44918B Motor, Vac 115V
44922B Motro, Vac 230V
40834A Brush, Carbon 115V
40835A Brush, Carbon 230V
32 54377A Gasket, Vac Motor
33 56441A Screw, 5mm x 20mm
34 54377A Gasket, Vac Motor
35 57163A Plug, Motor
36 54058A Foam, Triangle
37 54059A Filter
38 59770A Valve, Auto
39 57164A Plug, Lower
40 50760A Base, Motor
41 59859A Washer, Star
42 56485A Screw, 4mm x 8mm
NI 59887A Wire, Connect
NI 52944A Clip
NI= Not Illustrated
2
2
8
2
1
2
1
1
3
1
1
9
1
1
2
9
2
2
2
1
9
1
2
4
Qty
1
1
1
4
1
2
1
2
8
3
1
2
2
1
3
3
1
1
2
4
1
1
CLARKE TECHNOLOGY Operator's Manual STV-20/20D Page -7-
Page -8-
CLARKE TECHNOLOGY STV-20
Filter Bag & Float Assembly Drawing & Parts List 1/98
1
2
3
4
5
6
7
8
Ref Part No.
Description
1 58541A Spacer, Plastic
Qty
4
2 58413A Screw, 5mm x 20mm 4
3 57856A Cage, Float 1
4 54027A Filter
5 53981A Float
6 50339A Adapter, Bag
7 50720A Bag, Filter
8 56492A Support, Filter Bag
1
1
1
1
1
To add optional filters for STV-20 or STV-20D order:
54015A Filter, HEPA 1 and 57372A Retainer 1
or
53982A Filter, Cartridge 1 and 57372A Retainer 1
CLARKE TECHNOLOGY Operator's Manual STV-20/20D
CLARKE TECHNOLOGY STV-20 STV-20D
Tank Assembly & Tilt and Pour Carriage Drawing & Parts List 1/98
1 2 3 4 5 6 7 8 9 10 11
20
19
18
17
16 1
5
6
7
8
9
10
2
3
4
11 12 13 14
Tilt and Pour Carriage
Ref. Part No.
Description
1 54921A Handle, Transport
2 58529A Spacer, Hinge
3 50460A Pivot, Tank Support
4 57380A Rivet
5 56490A Support, Handle
6 56441A Screw, 5mm x 20mm
7 51868A Carriage, 20 gal.
8 50459A Pivot, Wheel
9 51184A Bearing, Spacer
10 59948A Wheel, 20 gal.
11 54897A Hub Cap
12 57853A Ring, Snap
13 56441A Screw, 5mm x 20mm
14 50555A Block, Stirrup
15 56481A Screw, 5mm x 30mm
16 52120A Caster, Swivel
15 16
2
8
2
8
2
2
2
2
2
4
1
4
1
Qty
1
2
1
Tank Assembly
Ref. Part No.
Description
1 54920A Handle, Assembly
2 51823A Clamp, Tank
3 57374A Rivet
4 56481A Screw, 5mm x 30mm
5 87055A Washer
6 58925A Tank, SS 20 gal.
7 56481A Screw, 5mm x 30mm
8 57375A Retainer, Poly Tank
9 54376A Gasket, Tank Adaptor
10 53166A Deflector, Tank
11 50336A Adaptor, Hose
12 50524A Button, Push
13 58692A Spring, Push Button
14 87055A Washer
15 56481A Screw, 5mm x 30mm
16 56481A Screw, 5mm x 30mm
17 87055A Washer
18 50554A Body, Hinge
19 55008A Hinge, Locking
20 55534A Knob, Hinge
CLARKE TECHNOLOGY Operator's Manual STV-20/20D Page -9-
4
4
1
1
1
1
1
1
1
2
4
4
2
1
4
8
8
Qty
2
2
4
12
13
1
14
15
CLARKE TECHNOLOGY STV-20 & STV-20D
Tool Kit Drawing & Parts List 1/07
19
18
12
17
15
16
14
13
1
2
3
1
2
3
8
7
6
8
9 7
6
11
10
5
4
5
4
Tool Kit - 55382B (includes items 12, 13, 14, 15, 16, 17, 18 & 19)
Ref.
Part No.
Qty Description
1 50753A 1 Body, Tool
2
3
57873A
53796A
4 53096A
5 88001A
1 Ring, Floor Tool
1 Adaptor, Floor Tool
2
4
Support, Floor Tool
Screw, 5mm x 15mm
6 59970A
7 50819A
8 51716A
9 51717A
2
2
2
1
Wheel
Axle
Brush Guide
Brush Strip Serrated
NOTE: indicates a change has been made since the last publication of this manual.
Ref.
Part No.
Qty Description
10 51718A 1 Brush Strip Plain
11 53097A
12 54887A
2
1
Squeegee Blades
Hose, 38mm x 2.5 m
13
14
59215A
39205B
15 59214C
16 59213C
17 57503B
18 59861B
19 59234A
1 Tool Crevice
1 Tool, Dusting
1 Tool, Floor Brush
1 Tool, Squeegee
1
2
1
Reducer, Wand
Wand, Extension
Handle, Wand
Page -10 CLARKE TECHNOLOGY Operator's Manual STV-20/20D
U. S. A. Locations
CLARKE PRODUCT SUPPORT BRANCHES
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
PRODUCTION FACILITIES
ALTO Danmark A/S, Aalborg
Blytaekkervej 2
DK-9000 Aalborg
+45 72 18 21 00
ALTO Danmark A/S, Hadsund
Industrikvarteret
DK-9560 Hadsund
+45 72 18 21 00
SERVICE FACILITIES
Clarke ® , Elk Grove, Illinois 60007
2280 Elmhurst Road
(847) 956-7900
Clarke ® , Denver, Colorado 80204
1955 West 13th Ave.
(303) 623-4367
Clarke ® , Houston, Texas 77040
7215 North Gessner Road
713-937-7717
SERVICE AND SALES FACILITY
American Lincoln ® / Clarke, Madison Heights,
Michigan 48071-0158
29815 John R.
(810) 544-6300
American Lincoln ® / Clarke, Marietta, Georgia 30066
1455 Canton Road
(770) 973-5225
Clarke ®
Clarke American Sanders
A.L. Cook
Customer Service Headquarters and Factory
2100 Highway 265
Springdale, Arkansas 72764
(479) 750-1000
Technical Service
1-800-356-7274
SALES SUBSIDIARIES
ALTO US - Canada, Ontario (Canada)
4080 B Sladeview Crescent Unit 1
Mississauga, Ontario L5L 5Y5
(905) 569 0266
ALTO Overseas Inc., Sydney (Australia)
1B/8 Resolution Drive
Caringbah NSW 2229
+61 2 9524 6122
ALTO Cleaning Systems Asia Pte Ltd., Singapore
No. 17 Link Road
Singapore 619034
+65 268 1006
ALTO Deutschland GmbH, Bellenberg (Germany)
Guido-Oberdorfer-Straße 2-8
89287 Bellenberg
+49 0180 5 37 37 37
ALTO Cleaning Systems (UK) Ltd., Penrith
Gilwilly Industrial Estate
Penrith
Cumbria CA11 9BN
+44 1768 868 995
ALTO France S.A. Strasbourg
B.P. 44, 4 Place d’Ostwald
F-67036 Strasbourg
Cedex 2
+33 3 8828 8400
ALTO Nederland B.V.
Postbus 65
3370 AB Hardinxveld-Giessendam
The Netherlands
+31 184 677 200
ALTO Sverige 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
CLARKE TECHNOLOGY Operator's Manual STV-20/20D Page -11-
CLARKE TECHNOLOGY WARRANTY
This ALTO Industrial/Commercial Product is warranted to be free from defects in materials and workmanship under normal use and service for a period of one year from the date of purchase, when operated and maintained in accordance with Clarke's Maintenance and Operations Instructions.
This warranty is extended only to the original purchaser for use of the product. It does not cover normal wear parts such as electrical cable, rubber parts, hoses and motor brushes.
If difficulty develops with the product, you should:
(a). Contact the nearest authorized Clarke repair location or contact the ALTO, CLARKE TECHNOLOGY
Service Operations Department, 2100 Highway 265, Springdale, Arkansas 72764, for the nearest authorized
Clarke repair location. Only these locations are authorized to make repairs to the product under this warranty.
(b). Return the product to the nearest Clarke repair location. Transportation charges to and from the repair location must be prepaid by the purchaser.
(c). Clarke will repair the product and/or replace any defective parts without charge within a reasonable time after receipt of the product.
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.
THERE ARE NO EXPRESS WARRANTIES OTHER THAN THOSE SPECIFIED HEREIN. THERE ARE NO
WARRANTIES WHICH EXTEND BEYOND THE DESCRIPTION OF THE FACE HEREOF. NO WARRANTIES,
INCLUDING BUT NOT LIMITED TO WARRANTY OF MECHANTABILITY, SHALL BE IMPLIED. A warranty registration card is provided with your Clarke product. Return the card to assist Clarke in providing the performance you expect from your new floor machine.
ALTO, 2100 Highway 265, Springdale, Arkansas 72764.
CLARKE TECHNOLGOY reserves the right to make changes or improvements to its machine without notice.
Always use genuine Clarke Parts for repair.
CLARKE TECHNOLOGY
2100 Highway 265
Springdale, Arkansas, 72764
