Alto SCRUBTEC R 571 C User manual

Form No. 71171E 10/06 CLARKE TECHNOLOGY Printed in the U.S.A.
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
bookpriortooperatingorattemptinganyserviceormaintenanceproceduretoyourALTO machinecould
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.
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, 2100 Highway 265, Springdale, Arkansas 72764.
Operator's
Manual
Manual Steering ModelsManual Steering Models
Manual Steering ModelsManual Steering Models
Manual Steering Models
SCRUBTEC R 571SCRUBTEC R 571
SCRUBTEC R 571SCRUBTEC R 571
SCRUBTEC R 571
SCRUBTEC R 571 CSCRUBTEC R 571 C
SCRUBTEC R 571 CSCRUBTEC R 571 C
SCRUBTEC R 571 C
SCRUBTEC R 586SCRUBTEC R 586
SCRUBTEC R 586SCRUBTEC R 586
SCRUBTEC R 586
SCRUBTEC BOOST RSCRUBTEC BOOST R
SCRUBTEC BOOST RSCRUBTEC BOOST R
SCRUBTEC BOOST R
U.S. Patent No. 6,105,192; No. 6,493,896; No. 6,557,207; and Patents Pending

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Table of Contents
Operator Safety Instructions .................................................................................................................................................. 3
Introduction & Machine Specifications.................................................................................................................................... 5
Symbols Used on Scrubtec .................................................................................................................................................... 6
Display Screens for Scrubtec ................................................................................................................................................ 7
MachineControlPanel ............................................................................................................................................................. 8
Machine Controls and Features .............................................................................................................................................. 9
How to Prepare the Machine for Operation ........................................................................................................................... 10
How to Handle the Packed Machine....................................................................................................................... 10
How to Unpack the Machine................................................................................................................................... 10
How to Install the Batteries..................................................................................................................................... 10
Battery Maintenance ............................................................................................................................................... 11
How to Charge the Batteries .................................................................................................................................. 12
Recharging the Batteries ........................................................................................................................................ 12
Level Indicators for the Charge on the Batteries ................................................................................................... 12
How to Install the Squeegee................................................................................................................................... 13
How to Adjust the Squeegee ................................................................................................................................. 13
How to Change or Rotate Brushes on Cylindrical Brush Head ............................................................................. 14
How to Install and Remove the Brush or Pad on the Boost Head ......................................................................... 15
How to Operate the Machine .................................................................................................................................................. 16
How to Return One Touch to Factory Default Settings ......................................................................................... 16
How to Move Machine ............................................................................................................................................ 16
Seat Adjustment...................................................................................................................................................... 16
How to Read the Battery Meter .............................................................................................................................. 17
How to Change Display Screens on the LCD Module ........................................................................................... 17
How to Read the Solution Empty Indicator ............................................................................................................. 17
How to Read the Recovery Full Indicator............................................................................................................... 17
How to Operate the Squeegee and the Vacuum Motor ........................................................................................ 18
How to Operate the Solution Flow ......................................................................................................................... 18
How to Operate Brush Pressure ........................................................................................................................... 18
How to Operate the Forward / Reverse Switch ................................................................................................... 18
How to Fill the Solution Tank................................................................................................................................... 19
Operating the Machine ............................................................................................................................................ 19
Do These Procedures When You Begin Your Work Period .................................................................................. 20
How to Clean a Floor .............................................................................................................................................. 21
How to Clean a Very Dirty Floor............................................................................................................................. 22
Do These Procedures When You End Your Work Period ..................................................................................... 22
Maintenance ............................................................................................................................................................................ 24
Maintenance to Be Done Every Week .................................................................................................................... 24
Battery Inspection and Cleaning ............................................................................................................................. 24
Cleaning the Recovery Tank and Filter................................................................................................................... 24
Cleaning the Solution Tank and Filter...................................................................................................................... 25
Manually Draining the Solution Tank ....................................................................................................................... 25
Vac Assisted Solution Tank Draining ..................................................................................................................... 25
Squeegee Maintenance .......................................................................................................................................... 25
Front Squeegee Blade Replacement ...................................................................................................................... 25
Rear Squeegee Blade Replacement....................................................................................................................... 26
Squeegee Maintenance .......................................................................................................................................... 26
Cleaning the Vac Hose ........................................................................................................................................... 26
How to Correct Problems in the Machine ............................................................................................................................... 27
CommonError Codes .............................................................................................................................................................. 28
Accesories and Options ......................................................................................................................................................... 29
SECTION II Parts and Service Manual
Final Assembly Drawing ......................................................................................................................................................... 88
Parts List ................................................................................................................................................................. 89
Main Frame Assembly Drawing (Rotary) ............................................................................................................................... 90
Parts List ................................................................................................................................................................. 91
Main Frame Assembly Drawing (Cylindrical) ......................................................................................................................... 92
Parts List ................................................................................................................................................................. 93
Main Frame Assembly Drawing (BOOST) .............................................................................................................................. 94
Parts List ................................................................................................................................................................. 95
Optional Side Squeegee Lift (28 & 34 Rotary Models) ........................................................................................................... 96
Parts List ................................................................................................................................................................. 97
Front Wheel Assembly Drawing and Parts List ..................................................................................................................... 98
Squeegee Lift Assembly Drawing and Parts List .................................................................................................................. 99
Recovery Tank Assembly Drawing........................................................................................................................................ 100
Parts List ................................................................................................................................................................. 101
Solution Tank Assembly Drawing (View 1) ........................................................................................................................... 102
Parts List (View 1).................................................................................................................................................. 103
Solution Tank Assembly Drawing (View 2) ........................................................................................................................... 104
Parts List (View 2).................................................................................................................................................. 105
Steering Column Assembly Drawing ...................................................................................................................................... 106
Parts List ................................................................................................................................................................. 107
28” Rotary Brush Head Assembly Drawing and Parts List ................................................................................................... 108
34” Rotary Brush Head Assembly Drawing and Parts List ................................................................................................... 109
28” Cylindrical Head Assembly Drawing ................................................................................................................................ 110
Parts List ................................................................................................................................................................. 111
32” Boost Head Assembly Drawing ....................................................................................................................................... 112
Parts List ................................................................................................................................................................. 113
Squeegee Assembly Drawing ................................................................................................................................................ 114
Parts List ................................................................................................................................................................. 115
Front Squeegee Assembly Drawing and Parts List ............................................................................................................... 116
Front Squeegee Arm Assembly Drawing and Parts List ....................................................................................................... 117
Electrical Panel Assembly Drawing and Parts List................................................................................................................. 118
Vac Motor Assembly............................................................................................................................................................... 119
ElectricalConnectionDiagram................................................................................................................................................. 120
Electrical Schematic ................................................................................................................................................................ 124

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OPERATOR SAFETY INSTRUCTIONS
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 our Owner's Manual and on your machine.
DANGER: Failure to read the Operator’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 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 unless it is completely assembled.
Inspect the machine carefully before operation. Operate only when lids, doors and
access panels are securely closed.
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. This machine is not suitable for picking up hazardous dust
or flammable materials. Use only commercially available floor cleaning waxes intended
for machine operation. DO NOT put gasoline, combustible or flammable materials in
the solution or recovery tank.
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.
DANGER: Working with batteries can be dangerous! Always wear eye protection and protective
clothing when working near batteries. Remove all jewelry. Do not put tools or other
metal objects across the battery terminals, or the tops of the batteries.
DANGER: Using the charger with a damaged power cord could result in an electrocution. Do not
use the charger if the power cord is damaged.
WARNING: Do not turn the machine on a ramp. Do not use on surfaces having a gradient exceeding that
marked on the appliance.
WARNING: Machines can topple over and cause injury or damage if guided over the edges of stairs or
loading docks. Stop and leave this machine only on a level surface. When you stop the
machine, put all switches into their "OFF" position. Turn the key switch "OFF" and remove the
key.
WARNING: Skidding may occur when traveling at high speeds and attempting sharp turns, especially on
wet surfaces.
WARNING: Do not move machine with forklift. Damage could occur to machine.
WARNING: Maintenance and repairs performed by unauthorized personnel could result in damage or
injury. Maintenance and repairs must be performed by authorized ALTO personnel only.

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WARNING: Any alterations or modifications of this machine could result in damage to the machine or
injury to the operator or other bystanders. Alterations or modifications not authorized by the
manufacturer voids any and all warranties and liabilities.
WARNING: Electrical components of this machine can "short-out" if exposed to water or moisture. Keep
the electrical components of the machine dry. Wipe the machine down after each use. This
appliance is for dry use only and is not to be used or stored outdoors in wet conditions. For
storage, keep the machine in a building.
WARNING: Operating a machine without observing all labels and instructional information could result in
injury or damage. Read all machine labels before attempting to operate. Make sure all of the
labels and instructional information are attached or fastened to the machine. Do not cover
them for any reason. If labels or decals are missing or become damaged, get replacement
labels and decals from your ALTO distributor immediately.
WARNING: Wet floor surfaces can be slippery. Water solutions or cleaning materials used with this type of
machine can leave wet areas on the floor surface. These areas can cause a dangerous
condition for the operator or other persons. Always put "Caution" signs around/near the area
you are cleaning.
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. City, state and national regulations regarding this
discharge may also 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.
WARNING: Only use the brushes provided with the appliance or those specified in the Operator's Manual.
The use of other brushes may impair safety.
CAUTION: Use of this machine to move other objects or to climb on could result in injury or damage. Do
not use this machine as a step or furniture.
CAUTION: Your machine warranty will be voided if anything other than genuine ALTO parts are used on
your machine. Always use ALTO parts for replacement.
CAUTION: This machine contains lead acid batteries. The batteries must be disposed of in an environ-
mentally acceptable manner.
WARNING: GENERALSAFETYRULES
The rules below have to be followed carefully in order to avoid injury to the operator and damage to the
machine:
• During the operation of this machine, pay attention to other people around you, especially children.
• Use care when reversing machine in confined areas.
• Do not mix different kinds of detergents. Avoid harmful odors.
• Do not place any liquid containers on to the machine.
• The recommended operating temperature should be between 32° F and 104° F.
• The humidity for operating this machine should be between 30 and 95%.
• Do not use acid solutions that could damage the machine.
• In order to prevent floor damage, do not leave brushes running when machine is standing still.
• In case of fire, use a powder extinguisher. Do not use water.
• Do not strike shelving or scaffoldings, where there is danger of falling objects.
• Adapt the utilization speed to the adhesion conditions.
• Do not exceed the declared hill climbing capacity, otherwise the machine could become unstable.
• For any maintenance operation take off the power supply from the machine.
• Do not disassemble any parts which require the use of a tool to be removed.
• Do not wash the machine with direct water jets or with high water pressure nor with corrosive material.
• After every 200 working hours have machine checked by an authorized service person.

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Introduction
Introduction & Machine Specifications
This is a floor cleaning machine which, using the mechanic abrasive action of brushes or pads and the chemical
action of a water-detergent solution, is able to clean any type of floor. During its forward movement, it picks up
theremoved dirtandthedetergentsolution whichhasnotbeenabsorbed bythefloor.
English Correct Disposal of This Product (Waste Electrical & Electronic Equipment)
(Applicable in the European Union and other European countries with separate
collection systems)
This marking shown on the product or its literature, indicates that it should not be disposed with
other household wastes at the end of its working life. To prevent possible harm to the
environment or human health from uncontrolled waste disposal, please separate this from other
types of wastes and recycle it responsibly to promote the sustainable reuse of material resources.
Household users should contact either the retailer where they purchased this product, or their
local government office, for details of where and how they can take this item for environmentally
safe recycling.
Business users should contact their supplier and check the terms and conditions of the purchase
contract. This product should not be mixed with other commercial wastes for disposal.
Model SCRUBTEC R 571 SCRUBTEC R 586 SCRUBTEC R 571 C SCRUBTEC BOOST R
Part Number
Cleaning Swath 28” (71.1 cm) 34” (86.4 cm) 28” (71.1 cm) 32” (81.3 cm)
Power Supply 36 volt system using (6) 6 volt 250, 330, or 370 AH deep cycle batteries
Battery Charger On-Board fully automatic smart charger, 115V 60 Hz or 230V 50 Hz
Brush Motors (1) 2 hp (1.5 kW) driving (1) 2.5 hp (1.9 kW) driving (2) .75 hp (.56 kW) (1) .75 hp (.56 kW)
two right angle gearboxes two right angle gearboxes
Brush Size / Speed (2) 14” (36 cm) 300 RPM (2) 17” (43 cm) 300 RPM (2) 6 x 28” (15.2 x 71.1 (1) 14 x 32” (35.6 x 81.3
cm) 300 RPM cm) 2250 RPM
Brush Pressure 12 -225 lbs. (57-102 kg) 90-130 lbs. (41-59 kg) 115-155 lbs. (52-70 kg)
TraverseSpeed
(max) 4.1 mph (6.6 kph)
Traverse 1.5 hp (1.1 kW) transaxle powering of two 10” (25.4 cm) diameter rear wheels
Max. Cleaning Grade 6 degree
Vacuum Motor 1 hp (.75 kW) 3 stage tangential discharge
Noise Level 70 dBA
Solution Tank 30 gallon (113 liter)
Recovery Tank 30 gallon (113 liter)
Length 65” (165 cm)
Width 33” (84 cm) 35.5” (90 cm) 30” (130 cm) 33” (84 cm)
Height 56” (142cm)
Machine Weight
w/330 AH batteries 1478 lbs. (670 kg) 1498 lbs. (679 kg) 1498 lbs. (679 kg) 1488 lbs. (675 kg)
& full of solution
Warranty 8 years PolydurTM tanks, 3 years parts, 1 year labor, 18 months pro-rated batteries

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Symbols Used On Scrubtec R
BrushUp/Down
Squeegee
Up/Down
Solution Flow
Switch
Battery Meter
LCDDisplay
Button
One Touch
Button
Forward /
Reverse
Horn
On/OffSwitch
Recovery /
SolutionLED

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Display Screens For Scrubtec R
Traverse speed indicator
1 = low 0-3 KPH
2 = med 0-5 KPH
3 = high 0-6.4 KPH
Position arrow indicating current position
of squeegee (up or down)
Indicators are on,
showingcurrent
settings.
Screens
Available
to Operator
“Battery” blinks when
low voltage occurs.
Water “droplets” off when solution is off and
they are flashing when solution is on.
Arrowsindicatingvacuumstatus.
They are flashing when vac is on
and off when vac is off.
SCREEN1
SCREEN2
Example
SCREEN3(Diagnostic)
The Diagnostic only. It will not show unless a fault with
the machine occurs. When the fault happens the icon
and error code will be displayed.

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On/Off Key Switch (See figure 1, Item D)
The key switch turns “ON” the power to the control
panel. “O” is the “OFF” and “I” is the “ON”.
Brush Up/Down Switch (See figure 1, Item A)
To lower brush head, push the brush switch in the
down (+) position. To lower the brush head to maxi-
mum brush pressure, continue to hold the switch in
the down (+) position until the travel stops. The brush
motorswill startandsolutionwillflow (providedthe
solutionisturned“ON”)when themachine beginsto
traverse. Toraise thebrush head,push thebrush
switch in the up (-) position until the brush head travel
stops or desired position is reached.
Squeegee Up/Down Switch (See figure 1, Item B)
The squeegee switch is used to raise and lower the
squeegeeandto turnonandoffthevacuummotor.
The vacuum motor is turned on when the switch is
placed in the middle or lower position. NOTE: When
the squeegee switch is placed in the lower
position, the vacuum motor will turn on.
To raise the squeegee, place the switch in either the
middle or up position. The middle position is used for
one touch control. The vacuum motor will stop, after a
short delay, when the switch is placed in the up
position.
Hour Meter (See figure 1, Item E)
The hour meter is located on the front display. You
must toggle screens using LCD display button. The
hourmeter indicatesthenumberofhours themachine
has operated. It displays brush motor, vacuum motor,
traverse motor and total key on times.
Battery Meter (See figure 1, Item F)
Thebatterymeterindicatestherelative chargeonthe
battery pack. The battery meter is located on screen
1 on the front display. See page 7.
Solution Flow Control (See figure 1, Item C)
Thesolution flowswitch regulatesthe flowofchemical
solution to the floor. To increase the flow, toggle (+).
Todecreasethe flow,toggle (-). Toshutoff the
solution, toggle - until no indicators are visible on
display (see figure 2). NOTE: DO NOT run dry!
NOTE: No solution will flow when the machine
does not traverse.
CircuitBreakers
The circuit breaker reset buttons are located on the
backsideof thefront coverbelow frontdisplay. The
breakersareasfollows:
Item A - Main (5 amp)
Item B - Key Switch (5 amp)
Machine Control Panel
Figure 1
A
B
C
D
E
E, F

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Machine Controls and Features
RecoveryTankFloat
The Scrubtec R is equipped with a float that shuts the
vacuum off when the recovery tank is full. The squeegee
will no longer pick up water. If this should happen, raise
the squeegee and empty the recovery tank.
The Traverse
The Scrubtec R is equipped with an electronically
controlled traverse system with variable speeds in
forward and reverse.
1. To traverse the machine, the power to the machine
must be turned on with the key switch and the
operator must be properly seated.
2. The traverse speed can be adjusted by varying the
pressure on the foot pedal.
NOTE: During reverse motion, the squeegee raises and
the solution flow stops automatically. Reverse also
reduces maximum traverse speed.
Brakes
The machine is equipped with an electronic braking
system. The electronic braking is activated automatically.
NOTE: During training, you should allow machine to
come to a full stop until you become familiar with
stopping distances required.
Parking Brake
The parking brake is activated automatically when the
machine comes to a stop. It disengages automatically
when you begin to traverse. The transaxle is equipped
with a manual brake release. NOTE: Machine will not
function when manual brake release is engaged. See
figure 2.
Reverse Alarm
The reverse alarm will sound intermittently and
automatically when the machine is in reverse.
Figure 2

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How To Handle the Packed Machine
The machine is packed in a specific package provided on
a pallet so that it can be moved with a forklift.
WARNING: The packages cannot be placed on
top of each other.
How to Unpack the Machine
1. Remove the outer package.
2. The machine is fixed on the pallet with banding
straps and wooden blocks to prevent movement
during shipment. Remove the bands and blocks.
3. Remove tie down brackets.
4. Lower the ramp. The machine can be lowered off
the pallet if the operator is thoroughly familiar with
its operation. Avoid violent blows to the base unit.
5. Keep the pallet for future transport necessities.
How to Install the Batteries
WARNING: The batteries are heavy. Lifting
batteries without help could result in
aninjury. Gethelptoliftthe
batteries.
WARNING: Working with batteries can be
dangerous. Always wear eye
protectionandprotectiveclothing
when working near batteries. NO
SMOKING!
WARNING: Hydrogen gas is formed during the
chargingoperationandisexplosive.
Only charge batteries in a well
ventilated area with the seat base
lifted.
The batteries are fitted in the battery compartment under
the seat and recovery tank (figure 4). The machine uses
six - 6 volt batteries. They must be handled by using
appropriate lifting equipment suitable for the weight and
for the coupler system. For maintenance and daily
recharge of the batteries, it is necessary to follow all
instructions given by the manufacturer.
For Battery Installation follow these steps (See figure 4):
1. Make sure that the key switch is in the “OFF”
position.
2. Lift and rotate the base support of the seat forward.
3. Lean the seat on it’s restraint cable.
4. Lift the front of the recovery tank and rotate it towards
the rear until it rests on it’s restraint cable.
5. Put the batteries into position and connect the
battery cables as shown in figure 3.
6. Rotate the recovery tank and then carefully rotate it
forward to the normal operating position.
7. Lower the base support of the seat.
NOTE: Charge the batteries before using.
How To Prepare the Machine For Operation
BATTERYCONNECTIONS
Frontof
machine
370 AH, 6 Volt
(Battery No. 40704A Wet)
(Battery No. 40602A Dry)
Figure 3
250 AH, 6 Volt
(Battery No. 881317 Wet)
(Battery No. 881318 Dry)
Three (3) 70222A Spacers
330AH, 6 Volt
(Battery No. 891384 Wet)
(Battery No. 891385 Dry)
Frontof
machine
Frontof
machine

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Battery Maintenance
The electrical power to operate the machine comes from the
storagebatteries. Storagebatteriesneedpreventative
maintenance.
WARNING: Working with batteries can be
dangerous. Alwaysweareye
protection and protective clothing
when working near batteries. NO
SMOKING!
Tomaintainthebatteriesingoodcondition,followthese
instructions:
1. Keepthe electrolyte at thecorrect level. Thecorrect
level is between 1/4” (1/2 cm) below the bottom of the
tubeineach cell and above the topsof theplates.
Checkthelevelofthe electrolyte eachtimeyoucharge
the batteries (see figure 4).
NOTE: Checkthelevelofelectrolyteprior to charging the
batteries. Be sure the plates in each cell are covered with
electrolytebeforecharging. Donot top off the cells prior to
chargingthebattery. Electrolyteexpandsduringcharging.
Asaresult,the electrolyte could overflow from the cells.
Alwaystopoffthe cells withdistilledwateraftercharging.
CAUTION: Irreversible damage will occur to
the batteries if electrolyte does not
cover the plates. Keep the
electrolyte at the correct level.
CAUTION: Machinedamageanddischarge
across the tops of the batteries can
occur if the batteries are over filled.
Do not fill the batteries up to the
bottom of the tube in each cell.
Wipeanyacidfromthemachineor
the tops of the batteries. Never
add acid to a battery after
installation.
CAUTION: Batteries must be refilled with
distilled water only. Do not use tap
waterasitmaycontain
contaminantsthatwilldamage
batteries.
2. Keepthe tops of thebatteriescleananddry. Keepthe
terminals and connectors clean. To clean the top of
thebatteries, use adampclothwith a weak solutionof
ammoniaorbicarbonateof soda solution. To clean
theterminals and connectors, useaterminaland
connectorcleaning tool. Do not allow ammoniaor
bicarbonateofsodatogetinto thebatteries.
3. Keepthebatteriescharged.
Figure 4
How To Prepare the Machine For Operation
Correct Fill

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How to Charge the Batteries
WARNING: Charging the batteries in an area
withoutadequateventilationcould
result in an explosion. To prevent
an explosion, charge the batteries
only in an area with good
ventilation.
WARNING: Lead acid batteries generate gases
which could explode. Keep sparks
and flames away from batteries.
NOSMOKING!
To charge the batteries, follow this procedure:
1. Make sure the key switch is in the “OFF” position.
2. Raise the seat base support.
3. Connect the battery charger AC cord to a properly
grounded wall receptacle matching plug
configuration (50/60 Hz).
4. Observe indicator light to ensure the charging
process has started (see figure 5, A - Red, B -
Yellow, C - Green ). For color indications see figure
6.
Recharging the Batteries
The Scrubtec R comes with an on board charger.
1. Plug into any wall socket and charging is automatic.
2. Observe indicator light to ensure the charging
process has started (see figure 5, A - Red, B -
Yellow, C - Green ). For color indications see figure
6.
NOTE: Make sure you plug into a circuit that is not loaded
by other equipment. Wall breakers may be tripped and
no charge will occur.
WARNING: Never charge a GEL battery with an
unsuitable battery charger.
Carefullyfollowtheinstructions
given by the manufacturer of the
batteries and battery charger.
NOTE: To prevent permanent damage to the batteries,
avoid their complete discharge. Never leave the batteries
completely discharged, even if the machine is not being
used. When recharging the batteries, keep the base
support of the seat lifted. After every 20 recharging
operations, check the level of the electrolyte and if
necessary top off with distilled water.
Level Indicators for the Charge of the Batteries
The battery meter ( see figure 7) on the control panel has
a digital read out with 10 fixed positions (A) and also a
blinking indicator (B). The bars that appear on the display
show the approximate charge level with icon (blinking)
discharged battery.
NOTE: A few seconds after the voltage reads 32V it will
start blinking. The brush motors will then automatically
switch off.
How To Prepare the Machine For Operation
Figure 7
(Shown with Optional Chemical Mixing Sytem)
Figure 5
A
B
Figure 6
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How To Prepare the Machine For
Operation
How To Install the Squeegee
To install the squeegee onto the machine, follow this
procedure:
1. The squeegee assembly has a break away feature
that is also used for mounting the squeegee. Loosen
the knobs on the squeegee (figure 8). Slide the stud
into the slotted hole in the support frame on the
machine.
2. Attach the vacuum hose cuff to the squeegee hose
fitting (see figure 9).
3. Tighten knobs. NOTE: Do not overtighten or break
away feature is lost and damage may occur.
NOTE: To prevent damage to the squeegee or machine, the
squeegee was designed to break away from the machine.
If the squeegee is impacted and it breaks away from the
machine, simply reinstall it by following step 1-3.
How to Adjust the Squeegee
During operation, the rear squeegee blade should have a
constant 3/16” minimum flare along the entire squeegee
blade (see figure 10).
1. The squeegee body can be tilted to adjust the
squeegee blade flare in the middle to match the flare
on the ends. To adjust the tilt, loosen the adjusting
bolt located on the left and right side of the squeegee
(see figure 9).
2. Press down on the squeegee until both sets of guide
wheels contact floor.
3. After making adjustments, retighten the screw(s).
NOTE: It is important that the right and left wheels are
contacting the floor in order for the squeegee to work.
NOTE: As the rear squeegee blade wears, it can be rotated
and/or flipped to obtain four good edges before having to
change blades.
Figure 8
Figure 9
Figure 10
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How To Prepare the Machine For
Operation
HowToChange orRotateBrushes onCylindricalBrush
Head
To install or rotate brushes on the cylindrical brush head:
1. Raise the brush deck and turn the key switch “OFF”.
2. Raise the brush skirt and pull out to remove. See
figure 11.
3. Remove thumb screw from brush door. See figure 12.
4. Lower door approximately 12 mm and slide door and
hub assembly from brush. See figure 13.
5. Slide brush off hub at opposite end. See figure 14.
6. Rotate brush or replace.
7. Slide brush on drive hub and insert door and hub
assembly into brush core.
8. Raise door and install thumb screw.
9. Place side skirt on retainer pins and lower in place.
10. Brushes should be rotated after every 20 hours of use.
Figure 11
Figure 12
Figure 13
Figure 14

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How To Install The Brush Or Pad on the BOOST
machine
ToinstallthebrushorpadontheBOOSTmachine,follow
thisprocedure:
1. Turn the key switch "ON".
2. Put the brush switch in the "UP" position.
3. Turn the key switch "OFF".
4. Go to the side of the machine.
5. Pressonabrushorpadundertheflexplates. See
figure15.
NOTE: When using a black pad, position pad on
head. Lowerheadandoperatemomentarilytoaffix
padto paddriver(ifyouhavedifficulty,positionpad
on floorandlowerheadthenoperate.)
How To Remove The Brush Or Pad on the BOOST
machine
Toremovethebrushorpadfromthemachine,followthis
procedure:
1. Turn the key switch "ON".
2. Put the brush switch in the "UP" position.
3. Turn the key switch "OFF".
4. Go to the side of the machine.
5. Pulldownwardonthebrushorpaduntilitreleases
from the flex plates. See figure 16.
How To Prepare the Machine For Operation
Figure 15
Figure 16

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Figure 19
Figure 20
HowtoReturnOne Touch to FactoryDefaultSettings
To restore the factory settings, follow the procedures below:
1. Pressandholdthe green one touch button (figure17,B)until
youhear a double beep fromthemachine. NOTE: The time
required for this will be approximately 15 seconds.
2. The settings should be returned to 2 bars of solution and 1
bar of brush pressure. NOTE: The squeegee vac switch
mustbeinthemiddlepositionfordefaultsettingstowork.
How to Move the Machine Without Power (see figure 18)
1. Engage manual override on brake (see page 9, “Parking
Brake”).
2. Remove foot plate and 4 screws and locate steering motor.
3. Using the knob on steering motor, turn shaft on motor in
direction you wish to turn machine.
4. Slowly push machine to desired location. NOTE: If you
attempttopushmachine too fastitwilllimit top speed. If
this happens, stop and restart.
5. After moving machine, disengage manual brake override.
NOTE:Machinewillnotfunctionifoverrideisengaged.
Seat Adjustment (Standard)
The standard seat is not adjustable forward or backward.
Seat Adjustment (Deluxe)
The optional deluxe seat is adjustable in three ways:
1. The seat can be adjusted to the forward/backward position
by using the lever on the lower right side of the seat . Moving
theleverwill allowtheseattoslide intothepreferredposition.
See figure 19.
2. To adjust the angle of the back support portion of the seat,
turn the lever located in the middle right position of the seat.
Turning this clockwise will make the seat more vertical.
Turning the knob counterclockwise will tilt the seat back.
See figure 20 A.
3. To adjust the suspension of the seat for operator comfort,
use the lever on the side of the back support section of the
seat. This has three positions. The upper position is for light
weight operators. The middle position is for medium weight
operators. Thebottompositionisforheavyweightoperators.
Seefigure 20, B. NOTE: The lever must be pressed firmly
tochangepositions.
Figure 18
How To Operate The Machine
Figure 17

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How to Read the Battery Meter (see figure 21, A)
The battery meter is an indicator on the LCD display. This
indicator is on the LCD display on the front of the machine.
It has 10 bars with 10 bars visible indicating a full charge.
As you run the machine the bars will begin to lower. The
“Battery Icon” (B) will begin to flash to indicate you are
reachingtheendofcharge.
NOTE: If you continue to run the brushes they will shut
down to protect the batteries from over discharging.
NOTE: Run times will vary depending on machine
variables, battery size, brush pressure and floor type,
etc.
How to Change Displays Screens on the LCD Module
The LCD display has three screens. Two of them can be
accessed at any time the key is on. The first screen
shows the machine status and the second screen shows
thefourhourmeters(figure21).
Thetwoscreens thatcan be viewedby theoperator can be
accessedviathe displaybutton (figure22) onthecontrol
panel to the left of the key switch. Pressing this button
togglesthedisplaybetweentheavailablescreens.
The third screen is for diagnostics only. This screen
displays any errors that might occur or if the system
diagnostics finds something wrong. When the diagnostic
screencomes up,refer tothe troubleshooting guidefor
suitableaction toresolvetheerrorcode.
How to Read the Solution Empty Indicator (see figure
23,A)
The solution empty indicator is located on the front of the
machine below the LCD display. When the solution
reaches nearly empty, the indicator will begin to flash,
warningtheoperatoroftheneedtorefill.
NOTE: Solution run times will vary depending on
solutionflowsetting.
How to Read the Recovery Full Indicator (see figure
23,B)
Therecovery fullindicator islocated onthefrontofthe
machine below the LCD display. When the recover tank is
nearfullthe indicatorwill beginto flash,warningthe
operatorofthe needto emptythe recoverytank. The
vacuummotorswill shutdown afew momentslater.
NOTE: Recovery times will vary depending on solution
flow setting and floor type.
How To Operate the Machine
A
SCREEN1
SCREEN2
A
B
B
Figure 21
Figure 22
Figure 23

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How to Operate the Squeegee and the Vacuum
Motor
Thesqueegeewipesthefloorwhilethevacuummotor
removesthe dirtysolution fromthefloor. To operatethe
squeegee,followthisprocedure:
1. Tolowerthesqueegeeandstartthevacuummotor,
pressthesqueegee up/downswitch tothe down
position (figure 24). NOTE: The vacuum motor
will start immediately when the down position
of the switch is pressed, and the squeegee will
lower.
2. Toraisethesqueegee,press thesqueegeeup/
down switch to the up position (figure 24). The
squeegeewill thenraiseand thevacuummotor will
shut off after short delay NOTE: The center
position of the squeegee up/down switch is for
use with one touch control.
NOTE: Thesqueegeewillriseautomaticallywhen
traversinginreverseduringscrubbingoperations.
How to Operate the Solution Flow
Thesolutionisusedtoloosenandremovedirtfromthefloor.
The amount of solution applied can be adjusted to five
different levels to accommodate many different floor
conditions. These different levels are shown on the LCD
displayonthefrontof themachine. To adjustthe amount
ofsolutionapplied,usetheSolutionFlowSwitch(figure25).
NOTE:Therearefivedifferentsettingsonthedisplay.
See figure 26, A.
Toincreasesolutionflow:
1. Press the “ + ” side of the switch (figure 25).
2. Pressandholdthe“+”switchtoachievethedesired
levelofsolutionflow.
Todecreasesolutionflow:
.1. Press the “ - “ side of the switch (figure 25).
2. Pressandholdthe“-“sideoftheswitchtoachievethe
desiredlevelofsolutionflow.
How to Operate the Brush Pressure
The brushes are used to supply agitation for the solution,
whichimprovesthecleaningprocess. Theamountofbrush
pressureappliedcan beadjustedtofive differentlevelsto
accommodate many different floor conditions. These
differentlevelsareshownontheLCDdisplayonthefrontof
themachine (figure26,B). Toadjusttheamountofbrush
pressure,usethebrushup/downswitch(figure27).
Toincreasebrushpressure:
1. Press the “ + ” side of the switch (figure 27).
2. Press and hold the “ + ” switch to achieve maximum
levelofpressure.
Todecreasebrushpressure:
.1. Press the “ - “ side of the switch (figure 27).
2. Press and hold the “ - “ side of the switch to achieve
minimumor nobrushpresssure.
Figure 24
Figure 25
Figure 26
Figure 27
How To Operate the Machine
A
B

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How to Operate the Forward / Reverse Switch
(see figure 28).
1. To go forward, push the up arrow side of the switch.
2. To go in reverse, push the down arrow side of the
switch.
HowtoFilltheSolutionTank
The solution tank fill port is located at the left side of the
machine (see figure 29). To fill the solution tank, follow this
procedure:
1. Turn the key switch to the “OFF” position.
2. Remove lid.
3. Add a cleaning chemical to the solution tank. For the
correct amount of chemical, follow the directions shown
on the container. NOTE: Excess foam in the recovery
tank could damage the vacuum motor, so use only
the minimum amount of detergent necessary.
WARNING: Always use low foam detergent. To
avoid the production of foam, before
starting to clean, put a minimum
quantityofantifoamliquidintothe
recoverytank. NEVERUSEPURE
ACID.
4. Fill the solution tank with clean water (see figure 29).
5. After filling the solution tank, replace the solution tank
lid.
WARNING: Water solutions or cleaning materials
used with this type of machine can
leave wet areas on the floor surface.
These areas can cause a dangerous
condition for the operator or other
persons. AlwaysputCAUTIONsigns
near the area you are cleaning.
WARNING: Machines can ignite flammable
materials and vapors. Do not use
with or near flammables such as
gasoline,graindust, solventsand
thinners. Only use a cleaning
concentration recommended by the
chemical manufacturer.
WARNING: ALTO recommends a maximum
water temperature of 120°F (49°C).
Operating the Machine
NOTE: Before scrubbing with the machine, become familiar
with the operations and handling of the machine. Run the
machine at the lowest traverse speed. Use the machine in
an area that has no furniture or objects until you can do the
following:
1. Traverse the machine in a straight direction, forward
and backward.
2. Stop the machine safely.
3. Turn the machine both left and right and return to a
straight direction.
4. Turn a 180oturn where one rear wheel just pivots.
How To Operate the Machine
Figure 29
Figure 28

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To traverse the machine follow this procedure:
1. Sit on the driver seat. NOTE: The machine will not
traverse if the operator is not properly seated.
2. Turn the key switch to the “ON” position.
3. Raise the brush to the highest position (if
necessary).
4. Raise the squeegee (if necessary).
6. Gently press the foot pedal and the machine will
begin to move.
7. To stop, release pressure on the foot pedal.
8. To travel in reverse, select reverse with the forward/
reverse switch.
9. To stop, release pressure on the foot pedal.
10. When you stop the machine, turn the key switch
“OFF” and remove the key.
Do These Procedures When You Begin Your Work
Period
1. Make sure the key switch is in the “OFF” position.
2. Disconnect AC power from battery charger (follow
charger instructions).
3. Make sure the filter screen (1) to the vacuum motor
is clean and installed properly in the recovery tank
(see figure 30).
4. Make sure the recovery tank lid is in place and has
been tightened (see figure 31).
5. Close and secure the lower cleaning port cover (if
so equipped) on the recovery tank.
6. Make sure that the plug in the recovery drain hose
is in place and has been tightened (see figure 32).
7. Make sure that the brushes/pads are in position
and installed correctly.
8. Make sure the brush housings are in position on
the brush head.
9. Check the installation of the squeegee and
squeegee hose.
How To Operate the Machine (cont.)
Figure 30
Figure 31
Figure 32