Nilfisk SCRUBTEC 871, SCRUBTEC 871C, SCRUBTEC 866, SCRUBTEC BOOST 8, SCRUBTEC 886 operators Manual

SCRUBTEC 8 SCRUBTEC 866 SCRUBTEC 871 SCRUBTEC 871C SCRUBTEC 886

Operator’s Manual and Parts List

Models: 05370F, 05370G, 05390F,

05400F, 05400G, 05410F, 05420F, 56380673

Form No. 71492A 10/08, Rev. 9/10

English (2-27) Parts List (29-64)

READ THIS MANUAL

ENGLISH

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 Nilﬁ sk ALTO machine could result in injury to you or to other personnel; damage to the machine or to other property could occur as well. You must have training in the operation of this machine before using it. If operator(s) cannot read 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.

Table of Contents

Operator Safety Instructions ....................................................................................................................................................................3

Introduction .............................................................................................................................................................................................4

Machine Speciﬁ cations ............................................................................................................................................................................5

Procedures For Transporting ...................................................................................................................................................................6

Symbols Used On SCRUBTEC ...............................................................................................................................................................7

Machine Control Panel ............................................................................................................................................................................8

Machine Controls and Features ..............................................................................................................................................................10

How To Prepare The Machine For Operation ..........................................................................................................................................10

How To Operate The Machine .................................................................................................................................................................17

Maintenance ............................................................................................................................................................................................21

How To Correct Problems In The Machine ..............................................................................................................................................25

Section II Parts and Service Manual

Solution Tank Assembly ...........................................................................................................................................................................30-31

Recovery Tank Assembly ........................................................................................................................................................................32-33

Handle Assembly (Disc and BOOST Models) .........................................................................................................................................34-35

Handle Assembly (Cylindrical Model) ......................................................................................................................................................36-37

Electrical Box Assembly ..........................................................................................................................................................................38-39

Squeegee Holder Assembly ....................................................................................................................................................................40-41

Squeegee Assembly (32.5”) ....................................................................................................................................................................42-43

Squeegee Assembly (35”) .......................................................................................................................................................................44-45

Squeegee Assembly (41”) .......................................................................................................................................................................46-47

Frame Assembly ......................................................................................................................................................................................48-49

Brush Head Assembly (866) ....................................................................................................................................................................50-51

Brush Head Assembly (871) ....................................................................................................................................................................52-53

Brush Head Assembly (886) ....................................................................................................................................................................54-55

Brush Head Assembly (BOOST 8) ..........................................................................................................................................................56-57

Brush Head Assembly (871C) .................................................................................................................................................................58-59

Chemical Mixing Kit .................................................................................................................................................................................60-61

Electrical Schematic ................................................................................................................................................................................62-63

Connection Diagram ................................................................................................................................................................................64

Accessories .............................................................................................................................................................................................65

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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 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 Nilﬁ sk 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 until it is completely assembled. Inspect the machine carefully before operation.

DANGER: Machines can cause an explosion when operated near ﬂ ammable materials and vapors. Do not use this

machine with or near fuels, grain dust, solvents, thinners, or other ﬂ ammable materials. This machine is not suitable for picking up hazardous dust.

DANGER: Lead acid batteries generate gases which can cause an explosion. Keep sparks and ﬂ ames away from bat-

teries. Do not smoke around the machine. Charge the batteries only in an area with good ventilation. Make sure that you unplug the AC charger from the wall outlet before operating the machine.

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 a charger with a damaged power cord could result in an electrocution. Do not use the charger if the

power cord is damaged.

WARNING: Operating this machine from anywhere other than the back of the machine could result in injury or damage. Operate

this machine only from the rear.

WARNING: This machine is heavy. Get assistance before attempting to transport or move it. Use two able persons to move the

machine on a ramp or incline. Always move slowly. Do not turn the machine on a ramp. If operating machine on a gradient over 2%, do not stop, turn or park. Read the “Procedures For Transporting” in this manual before transporting.

WARNING: Machines can topple over if guided over the edges of stairs or loading docks and cause injury or damage. Stop and

leave this machine only on a level surface. When you stop the machine, turn the key “OFF”.

WARNING: Maintenance and repairs performed by unauthorized personnel could result in damage or injury. Maintenance and

repairs must be performed by authorized Nilﬁ sk ALTO personnel only.

WARNING: Any alterations or modiﬁ cations of this machine could result in damage to the machine or injury to the operator or other

bystanders. Alterations or modiﬁ cations not authorized by the manufacturer voids any and all warranties and liabilities.

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WARNING: Electrical components of this machine can “short-out” if exposed to water or moisture. Keep the electrical compo-

WARNING: To reduce the risk of ﬁ re, when replacing fuse, replace only with same type and rating of fuse that comes with ma-

WARNING: Operating a machine without observing all labels and instructional information could result in injury or damage. Read

WARNING: Wet ﬂ oor surfaces can be slippery. Water solutions or cleaning materials used with this type of machine can leave wet

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

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

CAUTION: Your machine warranty will be voided if anything other than genuine Nilﬁ sk ALTO parts are used on your machine.

nents of the machine dry. Wipe the machine down after each use. For storage, keep the machine in a dry building.

chine.

all machine labels before attempting to operate. Make sure all of the labels and instructional information are attached or fastened to the machine. Get replacement labels and plates from your Nilﬁ sk ALTO distributor.

areas on the ﬂ oor 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.

Protection Agency has established certain regulations regarding discharge of waste water. Also, city and state regulations regarding this discharge may be in your area. Understand and follow the regulations in your area. Be aware of the environmental hazards of chemicals that you dispose.

a step or furniture. Do not ride on this machine.

Always use Nilﬁ sk ALTO parts for replacement.

Introduction :

Scrubtec 866, 871, 886, BOOST 8 and 871C automatic scrubbers are efﬁ cient and superior ﬂ oor cleaning machines. The Scrubtec 886 uses two brushes or pads to scrub a path 86 cm wide. The Scrubtec 871 uses two brushes or pads to scrub a path 71 cm wide. The Scrubtec 866 uses two brushes or pads to scrub a path 66 cm wide. The Scrubtec BOOST 8 uses one pad or brush to scrub a path 71 cm wide. The Scrubtec 871C uses two brushes to scrub a path 71 cm wide. A squeegee wipes the ﬂ oor while the vacuum motor removes the dirty solution from the ﬂ oor in one pass.

Scrubtec 866, 871, 886, BOOST 8 and 871C automatic scrubbers come complete with three battery connector cables, one battery cable, one battery charger and one operator’s manual.

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Machine Speciﬁ cations

Model Scrubtec 866 Scrubtec 871 Scrubtec 886 Pad / Brush Size (2) 13” (33 cm) (2) 14” (36 cm) (2) 17” (43 cm) Brush Motor (s) (2) 3/4 hp (.56 kw) (2) 3/4 hp (.56 kw) (2) 3/4 hp (.56 kw)

200 RPM 200 RPM 200 RPM

Cleaning Width 26” (66 cm) 28” (71 cm) 34” (86.4 cm) Brush Pressure 1 2nd - 150 lbs. (68 kg) 2nd - 150 lbs. (68 kg) 2nd - 150 lbs. (68 kg) Brush Retention Gimbal Gimbal Gimbal Brush Head Steel Deck w/ Bristle Skirt Steel Deck w/ Bristle Skirt Steel Deck w/Bristle Skirt Water Retention Squeegee Width 32.5” (81 cm) 35” (89 cm) 41” (107 cm) Width of Machine 28” (71 cm) Head 30” (76 cm) Head 35.7” (91 cm) Head

23.5” (60 cm) Body 23.5” (60 cm) Body 23.5” (60 cm) Body

Length of Machine 61” (155 cm) 62” (157 cm) 64” (162 cm) Height of Machine 44” (112 cm) Weight w/250 Ah batteries 796 lbs. (361.1 kg) 800 lbs. (362.9 kg) 791 lbs. (358.8 kg) and full solution tank Power Supply 24 volt, (4 - 6 volt batteries) Vacuum Motor .75 hp (550W), 3 stage, tangential discharge Vacuum Motor Protection Electronic Float Shut-Off Solution Tank 23 gallons (87 liters) Solution Fill Rear Fill with Bucket or Hose Solution Flow 0 - 1 gal/min (0 - 3.8 liters/min) Recovery Tank 23 gallons (87 liters) Motor Traction .44 hp (.33 kw) Speed Forward 0 - 260 ft/min (0 - 4.8 km/h) Speed Reverse 0 - 174 ft/min (0 - 3.2 km/h) Drive Wheel (2) 10.24” (260 mm) x 3.35” (85 mm) Light Gray, Non-Marking, Foam Filled Caster (2) 3.94” (10 cm) Polyurethane Squeegee Material Urethane Front Blade and Rear Blade Cleaning Grade 2 % Charger On Board, 24 volt, 25 amp Vibration @ handle <2.5m/s Sound test @ operator’s ear 65 dBA 65 dBA 67 dBA

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- 80 lbs. (36 kg) 1st - 80 lbs. (36 kg) 1st - 80 lbs. (36 kg)

Model Scrubtec 871 C Scrubtec BOOST 8 Pad / Brush Size Brush Motor (s) (2) .81 hp (.6 kw) 3/4 hp (.56 kw)

613 RPM 2250 RPM

Cleaning Width 28” (71 cm) 28” (71 cm) Brush Pressure 80 lbs. (36 kg) 1st - 65 lbs. (29.5 kg) 2 Brush Retention N/A Hook & Loop Brush Head Side Skirts N/A Water Retention Squeegee Width 35” (89 cm) 35” (89 cm) Width of Machine 30.69” (78 cm) Head 28.75” (73 cm) Head

23.5” (60 cm) Body 23.5” (60 cm) Body

Length of Machine 59.5” (151 cm) 60.5” (154 cm) Height of Machine 44” (112 cm) Weight w/250 Ah batteries 792 lbs. (359.3 kg) 794 lbs. (360.2 kg) and full Solution Tank Power Supply 24 volt, (4 - 6 volt batteries) Vacuum Motor .75 hp (550W), 3 stage, tangential discharge Vacuum Motor Protection Electronic Float Shut-Off Solution Tank 23 gallons (87 liters) Solution Fill Rear Fill with Bucket or Hose Solution Flow

Full range .0 - .65 gal/min (0 -2.5 liters/min)

Recovery Tank 23 gallons (87 liters) Motor Traction .44 hp (.33 kw) Speed Forward 0 - 260 ft/min (0 - 4.8 km/h) Speed Reverse 0 - 174 ft/min (0 - 3.2 km/h) Drive Wheel (2) 10.24” (260 mm) x 3.35” (85 mm) Light Gray, Non-Marking, Foam Filled Caster (2) 3.94” (10 cm) Polyurethane Squeegee Material Urethane Front Blade and Rear Blade Cleaning Grade 2 % Charger On Board , 24 volt, 25 amp Vibration @ handle <2.5m/s Sound test @ operator’s ear 71 dBA 63 dBA

(2) 5.75” x 28” (14.6 x 69cm)

0 - 1 gal/min (0 - 3.8 liters/min)

14” x 28” (35.6 x 71cm)

- 125 lbs. (56.7 kg)

Normal BOOST Scrubbing .12 gal/min (.45 liters/min),

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PROCEDURES FOR TRANSPORTING

How To Put The Machine In A Van Or Truck

1. Make sure the loading ramp is at least eight (8) feet long, and strong enough to support the machine.

2. Make sure the ramp is clean and dry.

3. Put the ramp in position.

4. Remove squeegee assembly.

5. Remove brush housing, pad drivers or brushes if transporting disc machine.

6. Turn key switch “ON”.

7. Align the machine on a level surface, ten (10) feet in front of the ramp.

8. Put the traverse speed switch in the “HI” position.

9. Press one or both forward switches.

10. Push the machine to the top of the ramp.

11. Turn the key switch “OFF”.

12. Fasten the machine to the vehicle.

WARNING: The machine is heavy. Make sure you use two able persons to assist

the machine in climbing the ramp.

How To Remove The Machine From A Van Or Truck

1. Make sure there are no obstructions in the area.

2. Make sure the unloading ramp is at least eight (8) feet long and strong enough to support the machine.

3. Make sure the ramp is clean and dry.

4. Put the ramp in position.

5. Unfasten the machine.

WARNING: The machine is heavy. Make sure you use two able persons to assist in

moving the machine down the ramp.

6. Turn the key switch “ON”.

7. Carefully and slowly, drive the machine to the top of the ramp by pressing and holding either of the forward switches and the reverse switch.

8. Put the traverse speed switch in the mid range speed setting. As the machine begins to travel down the ramp, maintain a slow downward speed by pressing either of the forward switches.

9. Replace squeegee assembly and other removed components, after the machine is unloaded and ready to use.

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SYMBOLS USED ON SCRUBTEC

ENGLISH

Hazard Alert Symbol

WARNING! Carefully read all instructions before performing any procedure.

WARNING! Do not use the machine on slopes exceeding the speciﬁ cations.

WARNING! Do not wash the machine with direct or pressurized water jets.

On/Off Key Switch

Traverse Speed Control

“One Touch” Control

Additional Brush Pressure (Not Available on Cylindrical)

Charge/Battery Meter

Chemical Mixing Control (Optional)

Vacuum On/Off

Solution Control

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MACHINE CONTROL PANEL

Key Switch (See Figure 1, Item “A”)

The key switch turns “ON” the power to the control panel. “O” is “OFF” and “I” is “ON”. Traverse Speed Switch (See Figure #1, Item “B”)

The speed control varies from low to high speed. To increase the speed, turn the knob to the right. To decrease the speed, turn the knob to the left. One Touch Control Button (See Figure 1, Item “C”)

The one touch control button raises and lowers the brush head assembly, starts and stops the vacuum motor automatically. Press the one touch control button once and the brush head assembly lowers to the ﬂ oor and the vacuum motor turns “ON” (brush head and vacuum LEDs illuminate green). The brush motors start when the brushes are down and the forward palm button is depressed. Press the one touch control button again and the brush head assembly raises, the vacuum motor will remain on for 10 seconds and then shut “OFF”.

Increase Brush Pressure Button (See Figure 1, Item D) This button is used to increase the brush pressure. Increased brush pressure may be required when stripping or cleaning heavily soiled ﬂ oors. T o increase brush pressure, ﬁ rst lower the brushes by pressing the one touch control button (Item “C”). This will lower the brushes to the normal scrub position. To increase brush pressure, press the button (Item “D”). The LED above the button will illuminate yellow. Press the button (Item “D”) again and the brushes will return to normal scrub (yellow LED will turn “OFF”). NOTE: Increase brush pressure is not available on cylindrical machine.

Vacuum Motor Button (See Figure 1, Item “E”) The vacuum motor button turns the vacuum motor “ON” or “OFF”, regardless of brush head assembly position. The green LED will illuminate when the vacuum motor is “ON”.

Solution Control Buttons (See Figure 1, Item “F & G”) The solution control buttons regulate the ﬂ ow of cleaning solution to the ﬂ oor. The normal scrub solution setting is indicated by two green bars on the meter. On cylindrical machines, with most ﬂ oor conditions, the solution setting should be set one step higher. To increase the ﬂ ow, press the solu- tion ﬂ ow button “G” (+) until the desired ﬂ ow is reached. To decrease the ﬂ ow, press the solution ﬂ ow button “F” (-) until the desired ﬂ ow is reached. To shut off the solution, press the solution ﬂ ow button “F” (-) until no indicators are visible on the display. NOTE: No solution will ﬂ ow when the

machine does not traverse. Forward Palm Buttons (See Figure 1, Item “H”)

The forward palm buttons turn the traverse motor “ON” and if the brush motors are in the down position, it also activates the brush motors and solution control module. Either the right or the left palm button can be used.

Reverse Push Button (See Figure 1, Item “I”) The reverse push button, when used in conjunction with one of the forward palm buttons, causes the machine to reverse direction. The reverse speed is 67% of the forward speed.

Charge / Battery Meter (See Figure 1, Item “J”) The charge / battery meter indicates the battery is being charged when the charger is plugged into an AC outlet. It also indicates the amount of charge that is left in the batteries while the machine is in use. When the charge gets too low the brush/pad motors will shut off.

Circuit Breakers (See Figure 1, Item “K & L”) The circuit breakers for the brush motors are located on the control panel. If a circuit breaker trips, determine which motor is not operating and turn the key switch “OFF”. Wait ﬁ ve minutes and push the reset button back in. Turn the key switch “ON”, and try again. An authorized service person should be contacted if the breaker trips again.

Hour Meter (Optional) (See Figure 1, Item “M”) The hour meter indicates the number of hours the machine has operated. It runs only when the machine is moving forward or reverse.

Chemical Mixing Control (Optional) (See Figure 1, Item “N”) The chemical mixing control regulates the amount of concentration of cleaning chemical mixed with the clear water from the solution tank. Turning the chemical mixing knob clockwise increases the concentration of chemical.

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MACHINE CONTROL PANEL

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Figure 1

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MACHINE CONTROLS AND FEATURES Squeegee Lift Handle (Manual Squeegee Lift) (See ﬁ gure 2)

The squeegee lift handle is located below the control handles in the center. It is used to raise or lower the squeegee.

Float Shut Off (See Figure 3). The shut-off switch for the vac motor is located in the recovery tank. It automatically turns off the vac motor when the recovery tank is full.

HOW TO PREPARE THE MACHINE FOR OPERATION

How To Install The Batteries

This machine uses four - 6 volt batteries. The batteries are located in the battery compartment under the recovery tank.

To install the batteries, follow this procedure:

1. Turn machine off. Set brake (if equipped).

2. Make sure recovery tank is empty.

Figure 2

3. Tip up the recovery tank to it’s full open position. See ﬁ gure 4.

4. Place the batteries in the tray as shown in Figure 5.

5. Connect the cables between batteries and install battery cable assembly

CAUTION: Before raising the tank, be sure tank is

empty.

WARNING: Do not operate the machine while the

recovery tank is in the open position. The tank can be accidentally bumped and it may slam shut.

WARNING: The batteries are heavy. Lifting batteries

without help could result in an injury. Get help to lift the batteries.

WARNING: Working with batteries can be dangerous.

Always wear eye protection and protective clothing when working near batteries. NO SMOKING!

as indicated. See ﬁ gure 5.

Figure 3

Figure 4

FRONT

6. Join the connector from the battery pack to the connector on the control panel.

7. Close recovery tank by slowly lowering the tank.

WARNING: Never charge any battery with an unsuitable

battery charger. Carefully follow the instructions by the manufacturer of the batteries and battery charger.

Figure 5

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revised 9/10

HOW TO PREPARE THE MACHINE FOR OPERATION

How to program battery charger (WET or AGM batteries):

According to the type of batteries (WET or AGM), set the machine and electronic board of the battery charger as follows:

Charger Setting

1. Turn the key switch “ON” (see ﬁ gure 5A, item A) and in the very ﬁ rst seconds of machine operation pay attention to the following:

• If the green warning light (item B) is ﬂ ashing, the charger is

set to AGM.

• If the yellow warning light (item C) is ﬂ ashing, the charger is

set to GEL EXIDE.

• If the red warning light (item D) is ﬂ ashing, the charger is set

to WET.

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DCB

2. If the setting is to be changed, perform the following procedure: a. Turn the key switch “OFF”. b. Press and hold the buttons (items E and F) at the same time,

then turn the key switch (item A) “ON”.

c. Continue to hold the buttons (items E and F) until the battery

meter LED light turns “ON” and “OFF” and then release both buttons.

d. Within 3 seconds, toggle the button (item F) to advance the

green bar (item G) to the desired charger setting (see green bar position for charger settings below):

Green bar setting (item G)

• 1st green bar - WET @ 25 amps, 250 & 330 ah batteries (4 RED blinks).

• 2nd green bar - GEL/AGM @ 25 amps, 260 & 312 AGM (4 GREEN blinks).

• 3rd green bar - GEL EXIDE @ 25 amps (4 YELLOW blinks).

• 4th green bar - WET @ 15 amps (2 RED blinks).

• 5th green bar - GEL/AGM @ 15 amps (2 GREEN blinks).

• 6th green bar - GEL EXIDE @ 15 amps (2 YELLOW blinks).

e. Once proper battery charger proﬁ le is selected, wait until bat-

tery LED light quits ﬂ ashing and stays on before turning key switch “OFF”.

f. Repeat step 1 to verify that proper charger proﬁ le was pro-

grammed for battery type (WET or GEL).

Figure 5A

NOTE: Charge the batteries before using the machine.

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HOW TO PREPARE THE MACHINE FOR OPERATION

Battery Maintenance

The electrical power to operate the machine comes from the storage batteries. Storage batteries need preventative maintenance.

WARNING: Working with batteries can be dangerous.

Always wear eye protection and protective clothing when working near batteries. NO SMOKING!

To maintain the batteries in good condition, follow these instructions:

1. Keep the electrolyte at the correct level. The correct level is between 1/4” (1/2 cm) below the bottom of the tube in each cell and above the tops of the plates. Check the level of the electrolyte each time you charge the batteries. See ﬁ gure 6.

Correct Level

NOTE: Check the level of electrolyte prior to charging the batteries. Be sure the plates in each cell are covered with electrolyte before charging. Do not top off the cells prior to charging the battery. Electrolyte expands during charging. As a result, the electrolyte could overﬂ ow from the cells. Always top off the cells with distilled water after charging.

CAUTION: Irreversible damage will occur to the batteries if

electrolyte does not cover the plates. Keep the electrolyte at the correct level.

CAUTION: Machine damage and discharge across the tops of

the batteries can occur if the batteries are over ﬁ lled. Do not ﬁ ll the batteries up to the bottom of the tube in each cell. Wipe any acid from the machine or the tops of the batteries. Never add acid to a battery after installation.

CAUTION: Batteries must be reﬁ lled with distilled water only. Do

not use tap water as it may contain contaminants that will damage batteries.

2. Keep the tops of the batteries clean and dry. Keep the terminals and connectors clean. To clean the top of the batteries, use a damp cloth with a weak solution of ammonia or bicarbonate of soda solution. To clean the terminals and connectors, use a terminal and connector cleaning tool. Do not allow ammonia or bicarbonate of soda to get into batteries.

Figure 6

Figure 7

3. Keep the batteries charged.

4. To drain battery compartment: (See ﬁ gure 7)

a. Always wear protective eye protection and protective clothing. b. Add a weak solution of ammonia or bicarbonate of soda solution to

battery compartment to neutralize any spilled acid. c. Locate drain hose behind the transaxle. d. Place hand behind ﬂ ange and open valve. e. When empty, close valve. f. Neutralize any acid spills with ammonia or bicarbonate of soda.

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HOW TO PREPARE THE MACHINE FOR OPERATION

How To Charge The Batteries

WARNING: Charging the batteries in an area without ade-

quate ventilation could 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 ﬂ ames away from batteries. NO SMOKING!

To charge the batteries, follow this procedure:

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1. Make sure the key switch is in the “OFF” position.

2. Before charging the batteries, the battery compartment needs to be vented. To vent compartment, tip up the recovery tank and rotate the tank support bracket, located in the solution tank (see ﬁ gure 8). Slowly lower the recovery tank and let it rest on the support bracket (see ﬁ gure 9). To close the tank, lift up on the recovery tank, rotate the support bracket down, then slowly lower the tank to the closed position.

CAUTION: Before raising tank, be sure tank is empty.

W ARNING: Do not operate the machine while the recovery

tank is in the open position. The tank can be accidentally bumped and it may slam shut.

3. Connect the battery charger AC cord located at the rear of the machine to an appropriate wall receptacle.

4. Observe indicator lights on the charger/battery meter to ensure the charging process has started. Red, yellow and green lights indicate state of charge. Steady on green light indicates the batteries are fully charged.

Figure 8

Figure 9

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 any battery with an unsuitable

battery charger. Carefully follow the instructions 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 recovery tank open. Check the level of the electrolyte and if necessary top off with distilled water.

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revised 9/10

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HOW TO PREPARE THE MACHINE FOR OPERATION

How To Install The Brush Or Pad (BOOST Machine)

To install the brush or pad on the machine, follow this procedure:

1. Turn the key switch “ON”.

2. Put the brush head assembly in the “Up” position.

3. Turn the key switch “OFF”.

4. Go to the front of the machine.

5. Press on a brush or pad, under the ﬂ ex plates. See ﬁ gure 10.

NOTE: When using a black pad, position pad on head. Lower head

and operate momentarily to afﬁ x pad to pad driver (if you have difﬁ culty, position pad on ﬂ oor and lower head then operate.)

How To Remove The Brush Or Pad (BOOST Machine)

To remove the brush or pad from the machine, follow this procedure:

1. Turn the key switch “ON”.

2. Put the brush head assembly in the “Up” position.

3. Turn the key switch “OFF”.

4. Go to the front of the machine and pull downward on the brush or pad until it releases from the ﬂ ex plates. See ﬁ gure 11.

Figure 10

Figure 11

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HOW TO PREPARE THE MACHINE FOR OPERATION

How To Install The Brushes Or Pad Drivers On The Disc Machine

To install the brushes or pad drivers on the machine, follow this procedure:

1. Turn the key switch “ON”.

2. Put the brush head assembly in the “UP” position.

3. Turn the key switch “OFF”.

4. Unlatch right and left brush housings and remove them. See ﬁ gure 12.

5. Put a brush or pad driver under the brush motor plate. See ﬁ gure 13.

6. Align the lugs on the motor gimbal with the slots in the brush gimbal.

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Figure 12

7. Pull the brush up until the gimbal locks.

8. Repeat steps 5, 6 and 7 to install the second brush or pad driver.

9. Reinstall right and left brush housings and latch front cover.

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.

How To Remove The Brushes Or Pad Drivers On the Disc Machine

To remove the brushes or pad drivers from the machine, follow this procedure:

1. Turn the key switch “ON”.

2. Put the brush head assembly in the “UP” position.

3. Turn the key switch “OFF”.

Figure 13

4. Unlatch right and left brush housings and remove them. See ﬁ gure 12.

5. Push down on two sides of the brush or pad driver until the gimbals release.

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HOW TO PREPARE THE MACHINE FOR OPERATION

How To Change Or Reverse Bristle Direction On Cylindrical Machine

To install or reverse bristle direction on the machine, follow this

procedure:

1. Turn the key switch “ON”.

2. Put the brush head assembly in the “UP” position.

3. Turn the key switch “OFF”.

4. Go to the front of the machine and loosen thumb screw on brush door. See ﬁ gure 14.

5. Lower door approximately 1/2 inch and remove brush door.

6. Remove brush. See ﬁ gure 15.

Figure 14

7. Inspect brush condition. If damaged or worn, replace it. Otherwise, turn brush end for end periodically to reverse bristle direction for better life.

8. Slide brush onto driver or opposite side and rotate slowly until drive lugs are lined up with brush slots. Push brush all the way in.

9. Install brush door assembly into brush.

10. Raise door and tighten thumb screw.

11 Repeat for the other brush.

DANGER: Operating a machine that is not com-

pletely 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.

Figure 15

-16- FORM NO. 71492A Nilﬁ sk ALTO Operator’s Manual (EN) - SCRUBTEC 866, 871, 866, Boost 8 and 871C

HOW TO OPERATE THE MACHINE

How To Operate the Squeegee

The squeegee wipes the ﬂ oor while the vacuum motor removes the dirty solution from the ﬂ oor. Use your hand to lower or raise the squeegee handle. To operate the squeegee, follow this procedure:

1. To lower the squeegee rotate the squeegee lever down. See ﬁ gure 16.

2. To raise the squeegee, rotate the squeegee lever up. See ﬁ gure 16.

How to Fill The Solution Tank

1. Remove the solution tank lid. See ﬁ gure 17.

2. If the machine does not have the Chemical Mixing System, add a cleaning chemical to the solution tank. For the correct amount of chemical, follow the directions shown on the container.

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3. Fill the solution tank with water.

4. Replace solution tank lid.

WARNING: Water solutions or cleaning materials used

with this type of machine can leave wet areas on the ﬂ oor surface. These areas can cause a dangerous condition for the operator or other persons. Always put CAUTION signs near the area you are cleaning.

WARNING: Machines can ignite ﬂ ammable materi-

als and vapors. Do not use with or near ﬂ ammables such as gasoline, grain dust, solvents, and thinners. Only use a cleaning concentration recommended by the chemical manufacturer.

WARNING: Nilﬁ sk ALTO recommends a maximum

water temperature of 120°F(49°C)

Figure 16

Figure 17

Nilﬁ sk ALTO Operator’s Manual (EN) - SCRUBTEC 866, 871, 866, Boost 8 and 871C FORM NO. 71492A - 17 -

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HOW TO OPERATE THE MACHINE

How To Operate The Chemical Mixing System (Optional)

The chemical mixing system is designed to automatically mix the cleaning chemical directly from the manufacturer’s chemical container into the clear water coming from the solution tank. The chemical control knob on the control panel is used to select the desired ratio according to the recommendation of the chemical manufacturer and the application requirements. The ratio settings are shown in ﬁ gure

19.

CAUTION: Do not operate the chemical pump dry.

If the chemical container is empty, make sure the chemical control is in the off position.

To operate the chemical mixing system, follow this procedure:

1. Select the proper cleaning chemical for scrubbing application.

Figure 18A

2. Set the chemical knob to the recommended setting per the chemical manufacturer.

3. Make sure the recovery tank is empty and then open the recovery tank.

4. Position the manufacturer’s chemical container into the bracket located at the front right side of the solution tank. See ﬁ gure 18A & 18B

5. Remove container cap and insert bottle adapter and tighten cap.

6. Slowly close the recovery tank.

NOTE: With the knob turned fully counterclockwise, only

water will be delivered to the ﬂ oor.

Figure 18B

GREEN BLUE YELLOW RED

Figure 19

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HOW TO OPERATE THE MACHINE

WARNING: Water solutions or cleaning materials used with

this type of machine can leave wet areas on the ﬂ oor surface. These areas can cause a dangerous condition for the operator or other persons. Always put CAUTION signs near the area you are cleaning.

WARNING: Machines can ignite ﬂ ammable materials and

vapors. Do not use with or near ﬂ ammables such as gasoline, grain dust, solvents and thinners. Only use a cleaning concentration recommended by the chemical manufacturer.

ENGLISH

WARNING: Nilﬁ sk ALTO recommends a maximum water

temperature of 120oF (49oC).

Operating The Machine NOTE: Put the machine in the lowest traverse speed setting. Use the

machine in an area that has no furniture or objects until you can do the following:

1. Move 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.

To move the machine, follow this procedure:

1. Release the parking brake (if equipped with machine).

2. Turn the key switch to the “ON” position

3. Raise the brush.

4. Raise the squeegee.

Figure 20

5. When either the left or right forward palm buttons (ﬁ gure 20, item A)

are pushed in, the machine will go forward.

6. Control the speed of traverse by using the traverse speed control

knob (ﬁ gure 20, item C).

7. To stop, release the forward palm buttons.

8. To reverse the machine, push in the white reverse switch (ﬁ gure 20

item B) and either the right or left forward palm buttons (ﬁ gure 20 item A) at the same time.

9. To stop, release the forward palm buttons.

10. To turn the machine, push the rear of the machine to the side.

11. When you stop the machine, turn the key switch “OFF”, remove the

key and set the parking brake (if equipped).

Nilﬁ sk ALTO Operator’s Manual (EN) - SCRUBTEC 866, 871, 866, Boost 8 and 871C FORM NO. 71492A - 19 -

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HOW TO OPERATE THE MACHINE

How To Clean A Floor

WARNING: Water solutions or cleaning materials used with

this type of machine can leave wet areas on the ﬂ oor surfaces. These areas can cause a dangerous condition for the operator or other persons. Always put CAUTION signs near the area you are cleaning.

To clean a ﬂ oor, follow this procedure:

1. Set the parking brake (if equipped with machine.)

2. Put the water and a cleaning chemical in the clean solution tank.

3. Release the parking brake (if equipped with machine.)

4. Turn the key switch “ON”.

5. Lower the squeegee.

6. Press the one touch control button to lower the brush head assembly and start vacuum motor.

7. Adjust the ﬂ ow of clean solution to the ﬂ ow desired.

8. Move the machine across the ﬂ oor in the forward direction.

9. Make a 180° turn.

NOTE: When you make more passes across the ﬂ oor, let the brush clean approximately 2 inches (5 cm) of the area already cleaned by the brush.

NOTE: During most cleaning procedures, apply and remove the solution in one operation.

How To Clean A Very Dirty Floor

To clean a very dirty ﬂ oor, follow this procedure:

1. Apply solution to the ﬂ oor.

2. Do not lower the squeegee. Shut vacuum motor “OFF”.

3. Lower the brush or pad and scrub the ﬂ oor.

4. Scrub the ﬂ oor again with additional solution and lower the squeegee and turn vacuum motor “ON”.

5. Pick up all the solution with the squeegee.

-20- FORM NO. 71492A Nilﬁ sk ALTO Operator’s Manual (EN) - SCRUBTEC 866, 871, 866, Boost 8 and 871C

MAINTENANCE

WARNING: Maintenance and repairs must be done by au-

thorized personnel only.

WARNING: Always empty the solution tank and recovery

tank before doing any maintenance.

WARNING: Keep all fasteners tight.

These Maintenance Procedures Must Be Done Every Day

Keep the machine clean, it will need fewer repairs and have longer life.

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Do These Procedures When You Begin Your Work Period

1. Turn off key switch.

2. Disconnect AC power from battery charger (follow charger instructions).

3. Make sure the screen ﬁ lter over the vacuum motor is clean and in position (see ﬁ gure 21.

4. Make sure the valve on the recovery drain hose is clean. Tightly close the valve.

5. Make sure the brushes are in position and installed correctly

6. Check the installation of the squeegee and squeegee hose.

7. Make sure the solution drain/level indicator hose is secure on upper ﬁ tting.

Figure 21

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