SC401 - Uncategorized NILFISK - Free user manual and instructions

USER MANUAL SC401 NILFISK

CONSERVATION DU MANUEL

PROBLÈME CAUSE POSSIBLE SOLUTION

09/2017 INTRODUCTION NOTE The numbers in brackets refer to the components shown in Machine Description chapter.

MANUAL PURPOSE AND CONTENTS

The purpose of this Manual is to provide the operator with all necessary information to use the machine properly, in a safe and autonomous way. It contains information about technical data, safety, operation, storage, maintenance, spare parts and disposal. Before performing any procedure on the machine, the operators and qualied technicians must read this Manual carefully. Contact Nilsk in case of doubts concerning the interpretation of the instructions and for any further information. TARGET This Manual is intended for operators and technicians qualied to perform the machine maintenance. The operators must not perform procedures reserved for qualied technicians. Nilsk will not be answerable for damages coming from the non-observance of this prohibition.

HOW TO KEEP THIS MANUAL

The Instructions for Use Manual must be kept near the machine, inside an adequate case, away from liquids and other substances that can cause damage to it.

DECLARATION OF CONFORMITY

The Declaration of Conformity, supplied with the machine, certies the machine conformity with the law in force. NOTE Two copies of the original declaration of conformity are provided together with the machine documentation. IDENTIFICATION DATA The machine serial number and model name are marked on the plate (3). Year of production (Date code: A17 means January 2017) and product code are marked on the same plate. This information is useful when requiring machine spare parts. Use the following table to write down the machine identication data. MACHINE model .............................................................................. PRODUCT code .............................................................................. MACHINE serial number .................................................................

OTHER REFERENCE MANUALS

Electronic Battery Charger Manual (if equipped), to be considered as integral part of this Manual Moreover, the following Manuals are available: – Spare Parts List (supplied with the machine) – Service Manual (that can be consulted at Nilsk Service Centers)

SPARE PARTS AND MAINTENANCE

All necessary operating, maintenance and repair procedures must be performed by qualied personnel or by Nilsk Service Centers. Only original spare parts and accessories must be used. Contact Nilsk for service or to order spare parts and accessories, specifying the machine model, product code and serial number.INSTRUCTIONS FOR USE ENGLISH

CHANGES AND IMPROVEMENTS

Nilsk constantly improves its products and reserves the right to make changes and improvements at its discretion without being obliged to apply such benets to the machines that were previously sold. Any change and/or addition of accessory must be approved and performed by Nilsk. OPERATION CAPABILITIES These scrubber-dryers are designed to clean (scrubbing and drying) smooth and solid oors, in commercial or industrial environment, under safe operation conditions by a qualied operator. The scrubber-dryers cannot be used for tted carpet and carpet cleaning. CONVENTIONS Forward, backward, front, rear, left or right are intended with reference to the operator’s position, that is to say in driving position with the hands on the handlebar (1). UNPACKING/DELIVERY To unpack the machine, carefully follow the instructions on the packing. When the machine is delivered, check that the packing and the machine were not damaged during transportation. In case of visible damages, keep the packing and have it checked by the carrier that delivered it. Call the carrier immediately to ll in a damage claim. Please check that the following items have been supplied with the machine: – Technical documents:

• Scrubber-dryer Instructions for Use Manual

• No. 1 connector for battery charger (for machines without on board battery charger)

• No. 2 lamellar fuses SAFETY The following symbols indicate potentially dangerous situations. Always read this information carefully and take all necessary precautions to safeguard people and property. The operator’s cooperation is essential in order to prevent injury. No accident prevention program is e󰀨ective without the total cooperation of the person responsible for the machine operation. Most of the accidents are caused by failure to comply with the simplest rules for exercising prudence.

VISIBLE SYMBOLS ON THE MACHINE

WARNING! Carefully read all the instructions before performing any operation on the machine. WARNING! Do not wash the indicated area with direct or pressurized water jets.

WARNING! Do not use the machine on slopes with a gradient exceeding the specications.ENGLISH INSTRUCTIONS FOR USE

SYMBOLS THAT APPEAR ON THIS MANUAL

DANGER! It indicates a dangerous situation with risk of death for the operator. WARNING! It indicates a potential risk of injury for people. CAUTION! It indicates a caution or a remark related to important or useful functions. Pay careful attention to the paragraphs marked by this symbol. NOTE It indicates a remark related to important or useful functions. CONSULTATION It indicates the necessity to refer to the Instructions for Use Manual before performing any procedure. GENERAL INSTRUCTIONS Specic warnings and cautions to inform about potential damages to people and machine are shown below. DANGER! – Before performing any machine maintenance, repair, cleaning or replacement procedure, disconnect the battery connector and remove the ignition key (if equipped). – This machine must be used by properly trained operators only. – Do not wear jewels when working near electrical components. – Do not work under the lifted machine without supporting it with safety stands. – Do not operate the machine near toxic, dangerous, ammable and/or explosive powders, liquids or vapours. This machine is not suitable for collecting dangerous powders. – When using lead (WET) batteries, keep sparks, ames and smoking materials away from the batteries. During the normal operation explosive gases are released. – When using lead (WET) batteries, battery charging produces highly explosive hydrogen gas. During battery charging, lift the recovery tank and perform this procedure in well-ventilated areas and away from naked ames. WARNING! – Carefully read all the instructions before performing any maintenance/repair procedure. – Before using the battery charger, ensure that frequency and voltage values, indicated on the machine serial number plate, match the electrical mains voltage. – Do not pull or carry the machine by the battery charger cable and never use the battery charger cable as a handle. Do not close a door on the battery charger cable, or pull the battery charger cable around sharp edges or corners. Do not run the machine on the battery charger cable. – Keep the battery charger cable away from heated surfaces. – Do not charge the batteries if the battery charger cable or the plug are damaged. If the machine is not working as it should, has been damaged, left outdoors or dropped into water, return it to the Service Center. – To reduce the risk of re, electric shock, or injury, do not leave the machine unattended when it is plugged in. Before performing any maintenance procedure, disconnect the battery charger cable from the electrical mains. – Do not smoke while charging the batteries. – To avoid any unauthorized use of the machine, remove the ignition key. – Do not leave the machine unattended without being sure that it cannot move independently.INSTRUCTIONS FOR USE ENGLISH

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09/2017 WARNING! – Always protect the machine against the sun, rain and bad weather, both under operation and inactivity condition. This machine must be used indoors in dry conditions, it must not be used or kept outdoors in wet conditions. – Before using the machine, close all doors and/or covers as shown in the Instructions for Use Manual. – This machine is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the machine by a person responsible for they safety. Children should be supervised to ensure that they do not play with the machine. – Close attention is necessary when used near children. – Use only as shown in this Manual. Use only Nilsk’s recommended accessories. – Check the machine carefully before each use, always check that all the components have been properly assembled before use. If the machine is not perfectly assembled it can cause damages to people and properties. – Take all necessary precautions to prevent hair, jewels and loose clothes from being caught by the machine moving parts. – Do not use the machine on slopes. – Do not tilt the machine more than the angle indicated on the machine itself, in order to prevent instability. – Do not use the machine in particularly dusty areas. – Use the machine only where a proper lighting is provided. – While using this machine, take care not to cause damage to people or objects. – Do not bump into shelves or scaoldings, especially where there is a risk of falling objects. – Do not lean liquid containers on the machine, use the relevant can holder. – The machine working temperature must be between 0 °C and +40 °C. – The machine storage temperature must be between 0 °C and +40 °C. – The humidity must be between 30 % and 95 %. – When using oor cleaning detergents, follow the instructions on the labels of the detergent bottles. – To handle oor cleaning detergents, wear suitable gloves and protections. – Do not use the machine as a means of transport. – Do not allow the brush to operate while the machine is stationary to avoid damaging the oor. – In case of re, use a powder re extinguisher, not a water one. – Do not tamper with the machine safety guards and follow the ordinary maintenance instructions scrupulously. – Do not allow any object to enter into the openings. Do not use the machine if the openings are clogged. Always keep the openings free from dust, hairs and any other foreign material which could reduce the air ow. – Do not remove or modify the plates axed to the machine. – (Only for machines with drive system): When the machine is to be pushed for service reasons (missing or discharged batteries, etc.), the speed must not exceed 4 km/h. – This machine cannot be used on roads or public streets. – Pay attention during machine transportation when temperature is below freezing point. The water in the recovery tank or in the hoses could freeze and seriously damage the machine. – Use only the brushes supplied with the machine or those specied in the Instructions for Use Manual. Using other brushes could reduce safety. – In case of machine malfunctions, ensure that these are not due to lack of maintenance. If necessary, request assistance from the authorised personnel or from an authorised Service Center. – If parts must be replaced, require ORIGINAL spare parts from an Authorised Dealer or Retailer. – To ensure machine proper and safe operation, the scheduled maintenance shown in the relevant chapter of this Manual, must be performed by the authorised personnel or by an authorised Service Center. – Do not wash the machine with direct or pressurised water jets, or with corrosive substances. – The machine must be disposed of properly, because of the presence of toxic-harmful materials (batteries, etc.), which are subject to standards that require disposal in special centres (see Scrapping chapter).ENGLISH INSTRUCTIONS FOR USE

2. Control panel (see the following paragraph)

6. Battery charger cable housing and document holder

7. Squeegee lifting/lowering pedal

8. Battery connector (red).

This connector also works as EMERGENCY push-button, to stop immediately all functions.

9. Front driving wheels (*)

10. Brush deck lifting/lowering pedal

A) Pedal position for lifted deck B) Pedal position for lowered deck

11. Squeegee vacuum hose

12. Recovery water drain hose

13. Solution drain and level check hose

14. Squeegee mounting handwheels

19. Recovery tank cover

09/2017 MACHINE STRUCTURE (Continues)

23. Removable solution feed hose

24. “Garden” intake for loading the solution

31. Vacuum grid with automatic shut-o󰀨 oat

32. Vacuum system motor

34. Recovery water tank cover (open)

42. Main machine start and stop push-button:

• LED on - machine scrubbing/drying

• Left LED on - minimum solution ow

• Central LED on - medium solution ow

• Right LED on - maximum solution ow

• LEDs o󰀨 - solution deactivated

44. Vacuum system push-button:

• LED on - vacuum system activated

• LED ashing - silenced vacuum system activated

• 1 ÷ 6 LEDs on - battery charge level

• 1 LED ashing - discharged batteries

• Green LED (the battery charger is on and batteries are charged)

• Yellow LED (the battery charger is on and batteries are semi-discharged)

• Red LED (the battery charger is on and it is charging the batteries) (*) Only for drive version (**) Standard on FULL PACKAGE version

09/2017 ACCESSORIES/OPTIONS In addition to the standard components, the machine can be equipped with the following accessories/options, according to the machine specic use: – Ignition key – GEL/AGM batteries – Electronic battery charger – Brushes/pads of di󰀨erent materials – Splash guard – Squeegee blades of di󰀨erent materials – Detergent System – Front and rear wheels of di󰀨erent materials – Hour counter – USB port For further information concerning the optional accessories, contact an authorised Retailer. TECHNICAL DATA Model SC401 SCRUBTEC 344 no drive SC401 drive Solution tank capacity 30 litres Recovery tank capacity 30 litres Machine length 1,180 mm Machine width with squeegee 720 mm Machine width without squeegee 458 mm Machine height 1,055 mm Cleaning width 430 mm Front wheel diameter 200 mm Front wheel specic pressure on the oor 0.8 N/mm

Rear wheel diameter 80 mm Rear wheel specic pressure on the oor 2.0 N/mm

Maximum gradient when working 2 % Drive system motor power - 150 W Drive speed (variable) - 0 - 5 km/h Vacuum system motor power 280 W Vacuum system circuit capacity 900 mm H

09/2017 WIRING DIAGRAM Key BAT 24 V batteries (*) C1 Battery connector C2 Battery charger connector CH Battery charger (optional) EB1 Function electronic board EB2 User interface electronic board EB3 Drive system electronic board (drive) ES1 Function electronic board relay EV1 Solenoid valve F1 Brush motor fuse F2 Vacuum motor fuse F3 Drive system motor fuse (drive) F4 USB port fuse (optional) HM Hour counter (optional) KEY Ignition key (*) M1 Brush motor M2 Vacuum system motor M3 Detergent pump (*) M4 Drive system motor (drive) RV1 Speed potentiometer (drive) S1,S2 Operator’s presence sensor SK Smart key (optional) SW1 Reverse gear switch (drive) TU Trackclean (optional) USB USB port (optional) (*) Optional for BASIC versions Colour codes BK Black BU Blue BN Brown GN Green GY Grey OG Orange PK Pink RD Red VT Violet WH White YE Yellow

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09/2017 USE/OPERATION WARNING!On some points of the machine there are some adhesive plates indicating: – DANGER – WARNING – CAUTION – CONSULTATION While reading this Manual, the operator must pay particular attention to the symbols shown on the plates (see Visible Symbols On The Machine paragraph).Do not cover these plates for any reason and immediately replace them if damaged. BATTERY CHECK/SETTING ON A NEW MACHINE WARNING!The electric components of the machine can be seriously damaged if the batteries are either improperly installed or connected. The batteries must be installed by qualied personnel only. Set the battery charger (optional) according to the battery type (WET or GEL/AGM).Check the batteries for damage before installation.Disconnect the battery connector and the battery charger plug.Handle the batteries with great care.Install the battery terminal protection caps supplied with the machine.The machine requires two 12 V batteries, connected according to the diagram (28).The machine can be supplied in one of the following modes: Batteries already installed on the machine

1. Ensure that the battery connector (8) is connected.

2. When rst using the machine with new batteries, perform a full charging cycle (see the procedure in Maintenance chapter). Without batteries 1. Buy appropriate batteries (see “Technical Data” paragraph).2. Set the machine according to the type of batteries installed (WET or GEL) as shown in the following paragraph.

BATTERY INSTALLATION AND SETTING (WET

OR GEL) Battery Installation 1. If equipped, remove the ignition key (41).2. Disconnect the battery connector (8).3. Lift the cover (34) and check that the recovery tank (33) is empty; if not, empty it using the drain hose (12).4. Close the cover (34).5. Grasp the handle (16) and carefully lift the tank (33).6. The machine is supplied with cables suitable to install 2 12 V batteries. Carefully lift the batteries up to the compartment, then install them correctly.7. Route and install the battery cables as shown in the diagram in Figure 1, then tighten the nut on each battery terminal.8. Place the protection cap on each terminal, then connect the battery connector (8).9. Grasp the handle (16) and carefully lower the tank (33). 12 V 12 V Figure 1P100948ENGLISH INSTRUCTIONS FOR USE

Brush or pad-holder installationAccording to the kind of cleaning to be performed, the machine can be equipped either with the brush (A, Fig. 2) or the pad-holder (B) with pad (C) together with the appropriate deck.1. Place the brush (A) or the pad-holder (B) under the brush deck (26).2. (If equipped) Turn the ignition key (41) to “I”.Press the main push-button (42) to start the machine.3. Press the main push-button (42, LED on) again.4. Lower the brush deck by pressing the pedal (10-B).5. To activate the brush engagement function, press the push-buttons (44) and (42) simultaneously for one second.Brush or pad-holder removal6. Press the main push-button (42, LED o󰀨).7. Lift the brush deck by pressing the pedal (10-A).8. To activate the brush disengagement function, press the push-buttons (44) and (42) simultaneously for one second, then wait for the brush to fall on the oor. NOTE When the brush engagement/disengagement function is activated, the push-button LED (42) ashes.

Figure 2P100950Battery type settingSet the electronic board of the machine according to the type of batteries installed (WET or GEL) as shown below:10. (If equipped) Turn the ignition key (41) to “I”.Press the main push-button (42) to turn on the machine, then detect the current setting by checking in the very rst seconds the battery symbol LED ashing (see Figure 2):11. If the setting is to be changed, press the push-button (44) for 3 seconds.12. Within 3 seconds, shortly press the push-button (44) to select a new setting.13. Wait 3 seconds for the battery symbol to display the battery charge status.WARNING!In the machines equipped with on-board battery charger, the installed batteries (WET or GEL/AGM) may require a specic charging algorithm: always contact a Nilsk Service Center to set the charging algorithm most appropriate for the installed batteries.Battery Charging14. Fully charge the batteries (see the procedure in Maintenance chapter). GEL/AGM WET Figure 2P100949INSTRUCTIONS FOR USE ENGLISH

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09/2017 Available brushes and their relevant application guides (suggestions only) Models 46 GRIT 80 GRIT 180 GRIT 240 GRIT 500 GRIT PROLENE PROLITE UNION MIX General cleaning: Concrete Terrazzo oor Ceramic tiles/quarrystones Marble Vinyl tiles Rubber tiles Polishing: Rubber tiles Marble Vinyl tiles Squeegee installation

1. Install the squeegee (A, Fig. 3) and fasten it to the bracket

(C) with the handwheels (B).

2. If necessary, adjust the squeegee with the knob (D) so that

the rear blade (E) and front blade (F) touch the oor as shown in the gure. Solution tank lling CAUTION! Use only low-foam and non-ammable detergents, intended for automatic scrubber applications. WARNING! When using oor cleaning detergents, follow the instructions on the labels of the detergent bottles. To handle oor cleaning detergents, wear suitable gloves and protections. NOTE If the machine is equipped with Detergent System pour clean water in the tank, otherwise pour solution.

1. Ensure that the solution valve (28) is open (28-B).

2. To ll the solution tank (21) lift the plug (22) and use the

3. Fill the tank (21) with a solution suitable for the work to be performed.

Do not ll the tank completely, leave a few inches from the edge. Use the level hose (13) as reference. Always follow the dilution instructions on the label of the chemical product used to prepare the solution. The solution temperature must not exceed 40 °C. (For machines with Detergent System)

4. Fill the tank (21) with clean water.

Do not ll the tank completely, leave a few inches from the edge. Use the level hose (13) as reference. The water temperature must not exceed 40 °C. Detergent tank lling (For machines with Detergent System)

5. Lift the cover (34) and check that the recovery tank (33) is empty; if not, empty it using the drain hose (12).

6. Close the cover (34).

7. Grasp the handle (16) and carefully lift the tank (33).

8. Fill the tank (17) with a detergent suitable for the work to be performed (highly concentrated detergent).

Do not ll the detergent tank completely, leave a few inches from the edge. CAUTION! Use only low-foam and non-ammable detergents, intended for automatic scrubber applications. STARTING UP THE MACHINE (SCRUBBING/DRYING)

1. Prepare the machine as shown in the previous paragraph.

2. (If equipped) Turn the ignition key (41) to “I”.

Press the main push-button (42) to start the machine. NOTE First ashes on the battery symbol (45) indicate the type of batteries installed (see paragraph “Battery type setting”). NOTE Check the battery charge level. 6 LEDs on the battery symbol (45) indicate the battery charge level. When there is only one LED turned on and ashing, it is advisable to charge the batteries, because the residual autonomy will last for a few minutes, depending on battery characteristics and work to be performed (for battery charging procedure see the Maintenance chapter). CAUTION! Do not use the machine with discharged batteries, to avoid damaging the batteries and reducing the battery life.

3. Drive the machine to the working place:

• (Only for no drive versions) push the machine with the hands on the handlebar (1).

• (Only for drive versions) start the machine with at least one hand on the presence sensors (46) on the handlebar to move forward. The maximum forward speed can be adjusted with the adjuster (47). For reverse gear, press the push-button (48) and place the hands on the sensors (45). NOTE When the machine is turned on and the hands are on the presence sensors, if the machine is equipped with hour counter (49), it is possible to read the total number of working hours performed.

4. Lower the squeegee (29) with the pedal (7).

5. Lower the brush deck by pressing the pedal (10-B).

6. Press the main push-button (42, LED on) to start the machine scrubbing/drying functions.

7. Manoeuvre the machine by placing your hands on the sensors (46) on the handlebar, and start scrubbing/drying the oor.

NOTE The presence sensors (46) on the handlebar allow the brush and solution to be started up (on drive versions) only when the operator has the hands on at least one of the knobs.INSTRUCTIONS FOR USE ENGLISH

8. (Only for drive versions) If necessary, adjust the maximum speed with the adjuster (47).

9. To avoid marks or lines on delicate oors, use the “pre wetted” function, which dampens the brush before starting the

operation. To activate this function, press the push-buttons (42) and (43) together for 10/20 seconds. NOTE The “pre wetted” function stays only as long as the push-buttons (42) and (43) are pressed. 10. Adjust the detergent ow by pressing the push-button (43) as necessary, depending on the type of cleaning to be performed. When the LED is on, it indicates the value in litres per minute of solution ow supplied, as shown in the Figure 4. When the LEDs are o󰀨, the solution ow is stopped.

Figure 4 P100952 11. If necessary, deactivate the vacuum system by pressing the push-button (44, LED o󰀨), then press it again to reactivate it (LED on). To reduce the noise, turn on the vacuum system mute function by pressing the push-button (44). 12. (Only for no drive versions) If necessary, stop the machine and turn the forward speed adjusting handwheel (35) as shown below:

• Turn it counter-clockwise to increase the forward speed;

• Turn it clockwise to decrease the forward speed. NOTE For correct scrubbing/drying of oors at the sides of the walls, Nilsk suggests to go near the walls with the right side of the machine as shown in gure 5. Figure 5 P100953 CAUTION! To avoid any damage to the oor surface, turn o the brush when the machine stops in one place.ENGLISH INSTRUCTIONS FOR USE

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09/2017 Adjusting of detergent concentration in the washing water (For machines with Detergent System) The system for mixing the detergent in the washing water is automatically activated when the brush is running. The percentage of detergent added to the washing water is set to 0,25%, to change the setting perform the following procedure:

1. Press the push-button (43) for more than two seconds to perform the adjustment.

The set percentage depends on the relevant LED turned on, on the battery charge symbol, as shown in Figure 6.

2. Press the push-button (43) repeatedly to change the setting or to reset it (all LEDs o󰀨).

NOTE The setting is stored 3 minutes after releasing all push-buttons. Detergent percentage setting is stored into memory, even if the machine is switched o. 0,25% 0,4% 0,8% 1% 1,5% 2% Figure 6 P100954 Battery discharge during operation When there is only one LED turned on and ashing on the battery symbol (45), it is advisable to charge the batteries, because the residual autonomy will last for a few minutes (depending on battery characteristics and work to be performed). When the LED ashes, the brush is automatically tuned o󰀨 after a few seconds, while the vacuum system and the drive system (drive version) stay on, to nish drying the oor and drive the machine to the appointed recharging area. CAUTION! Do not use the machine with discharged batteries, to avoid damaging the batteries and reducing the battery life.

STOPPING THE MACHINE

1. Stop the brush rotation and the drive system (drive version) by releasing the presence sensors (46) and stop the machine with the handle (1).

2. Press the push-button (42) for 2 seconds to stop the machine.

(If equipped) Turn the ignition key (41) to “0”. NOTE If the machine is on but not working, it automatically turns o after 5 minutes.

3. Make sure that the machine cannot move independently.

CAUTION! In the event of an emergency, to stop all machine functions immediately, disconnect the battery connector (8). Reset the machine functions by connecting again the connector.INSTRUCTIONS FOR USE ENGLISH

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09/2017 TANK EMPTYING An automatic shut-o󰀨 oat system (31) turns o󰀨 the vacuum system when the recovery tank (33) is full. The vacuum system deactivation is signalled by a sudden increase in the vacuum system motor noise frequency, and the oor is not dried. CAUTION! If the vacuum system turns o accidentally (for example, when the oat is activated because of a sudden machine movement), to resume the operation: turn o the vacuum system by pressing the push-button (44), then open the cover (34) and check that the oat inside the grid (31) has gone down to the water level. Then close the cover (34) and turn on the vacuum system by pressing the push-button (44). When the recovery tank (33) is full, empty it according to the following procedure. Recovery tank emptying

1. Lift the brush deck by pressing the pedal (10-A).

2. Lift the squeegee (29) with the lever (7).

3. Drive the machine to the appointed disposal area.

4. Turn o󰀨 the machine by pressing the main push-button (42) for 2 seconds, and (if equipped) turn the ignition key (41) to “0”.

5. Empty the recovery tank (33) with the drain hose (12). Then, rinse the tank with clean water.

Solution tank emptying

6. Perform steps 1 to 4.

7. Empty the detergent solution tank (21) using the level hose (13). Then, rinse the tank with clean water.

AFTER USING THE MACHINE

After working, before leaving the machine:

1. Remove the brush as shown in the relevant paragraph.

2. Remove the ignition key (41).

3. Empty the tanks (33) and (21) as shown in the relevant paragraphs.

4. Perform the daily maintenance procedures (see the Maintenance chapter).

5. Store the machine in a clean and dry place, with the brush and the squeegee lifted or removed.

6. Make sure that the machine cannot move independently.

MACHINE LONG INACTIVITY

If the machine is not going to be used for more than 30 days, proceed as follows:

1. Perform the procedures shown in After Using the Machine paragraph.

2. For versions with Detergent System, empty the detergent tank (17) and clean the system (see the procedure in Maintenance chapter).

3. Close the solution tank valve (28-B).

09/2017 MAINTENANCE The lifespan of the machine and its maximum operating safety are ensured by correct and regular maintenance. The following table provides the scheduled maintenance. The intervals shown may vary according to particular working conditions, which are to be dened by the person in charge of the maintenance. WARNING! The procedures must be performed with the machine o and the battery disconnected. Moreover, read carefully the instructions in the Safety chapter before performing any maintenance procedure. All scheduled or extraordinary maintenance procedures must be performed by qualied personnel, or by an authorised Service Center. This Manual describes only the simplest and most common maintenance procedures. For other maintenance procedures shown in the Scheduled Maintenance Table, refer to the Service Manual that can be consulted at any Service Center.

SCHEDULED MAINTENANCE TABLE

Procedure Daily, after using the machine Weekly Every six months Yearly Battery Charging Squeegee Cleaning Brush/pad cleaning Recovery tank, debris tray, and vacuum grid with oat cleaning, and cover gasket check Detergent System cleaning and washing (optional) Squeegee blade check Solution Filter Cleaning Battery (WET) uid level check Squeegee blade replacement Drive and brush motor vent check and cleaning (1) Brush motor carbon brush check or replacement (1) Drive system motor carbon brush check or replacement (only for Drive versions) (1) (1) This maintenance procedure must be performed by an authorised Nilsk Service Center.INSTRUCTIONS FOR USE ENGLISH

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09/2017 BATTERY CHARGING NOTE Charge the battery when only one LED of the battery symbol (45) is ashing, or at the end of each shift. Keeping the batteries charged make their life last longer. CAUTION! When the batteries are discharged, charge them as soon as possible, as that condition makes their life shorter. Check for battery charge at least once a week. CAUTION! If the machine is not equipped with on-board battery charger, choose an external battery charger suitable for the type of batteries installed. WARNING! When using lead (WET) batteries, battery charging produces highly explosive hydrogen gas. Charge the batteries in well-ventilated areas and away from naked ames. Do not smoke while charging the batteries. Keep the recovery tank lifted until the battery charging cycle is over. WARNING! Pay careful attention when charging lead batteries (WET) as there may be battery uid leakages. The battery uid is corrosive. If it comes in contact with skin or eyes, rinse thoroughly with water and consult a physician. Preliminary operations

1. Drive the machine to the appointed recharging area.

2. Ensure that the machine is o󰀨 and the ignition key (41) has been removed.

3. Lift the cover (34) and check that the recovery tank (33) is empty; if not, empty it using the drain hose (12).

4. Close the cover (19).

5. Grasp the handle (16) and carefully lift the tank (33).

6. For WET batteries only:

• Check the level of electrolyte inside the batteries (36). If necessary, unscrew the caps and top up.

• When the correct level is restored, close the caps and clean the tops of the batteries. 7. Charge the batteries according to one of the following procedures, depending on the presence of the electronic battery charger (4). Charging the Batteries with an External Battery Charger 1. Check that the external battery charger is suitable by referring to the relevant Manual. The battery charger voltage rating must be 24 V.

2. Disconnect the battery connector (8), which is tted with a handle, and connect it to the external battery charger.

3. Connect the battery charger to the electrical mains.

4. After charging, disconnect the battery charger from the electrical mains and from the battery connector.

5. Connect the battery connector (8) to the machine.

6. Grasp the handle (16) and carefully lower the tank (33).

WARNING! Never connect the external battery charger to the opposing part of the connector xed to the machine. The electronic system could be irreparably damaged. Battery charging with battery charger installed on the machine 1. Connect the battery charger cable (5) to the electrical mains. Electrical mains voltage and frequency must be compatible with the battery charger values shown on the machine serial number plate (3). NOTE When the battery charger is connected to the electrical mains, all machine functions are automatically cut o.

2. If the red LED on the battery charger inspection window (51) stays on, the battery charger is charging the batteries.

3. When the yellow warning light turns on, the battery charging cycle is nearly completed.

4. When the green warning light turns on, the battery charging is completed.

5. When the battery charging is completed, disconnect the battery charger cable (6) from the electrical mains and wind it round its housing (6).

6. Grasp the handle (16) and carefully lower the tank (33).

NOTE For further information about the battery charger (4) operation, see the relevant Manual.ENGLISH INSTRUCTIONS FOR USE

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09/2017 SQUEEGEE CLEANING NOTE The squeegee must be clean and its blades must be in good conditions in order to get a good drying. CAUTION! It is advisable to wear protective gloves when cleaning the squeegee because there may be sharp debris.

1. Drive the machine on a level oor.

2. Ensure that the machine is o󰀨 and the ignition key (41) has been removed (if equipped).

3. Loosen the handwheels (14) and remove the squeegee (29).

4. Wash and clean the squeegee. In particular, clean the compartments (A, Fig. 7) and the vacuum hole (B). Check the condition of the front (C) and rear (D) blades, ensuring there are no cuts and tears; if necessary, replace them as shown below.

5. Install the squeegee in the reverse order of removal.

SQUEEGEE BLADE CHECK AND REPLACEMENT

1. Clean the squeegee as shown in the previous paragraph.

2. Check the condition of the front (C, Fig. 7) and rear (D) blades, ensuring there are no cuts and tears; if necessary, replace them as shown below. Check that the front corner (E) of the rear blade is not worn; otherwise, turn the blade to replace the worn corner with one of the three remaining intact corners. If the other corners are worn too, replace the blade according to the following procedure:

• Using the tab (F), release and remove the elastic strap (G) from the fasteners (H), then turn or replace the rear blade (D).

• Install the rear blade in the reverse order of removal. Fasten the elastic strap (G) to the fasteners (H) starting from one side. To make the fastening procedure easier, secure the fasteners one at a time, by locking the strap before the fastener with one hand (M) and pulling it with the other hand (N).

• Unscrew the handwheels (I) and remove the strap (J), then turn or replace the front blade (C).

• Install the front blade in the reverse order of removal.

3. Install the squeegee (29) and screw down the handwheels (14).

4. Lower the squeegee to the oor to check the height of the blades, proceeding as follows:

• Check that the lip (K) of the front blade (C) and the lip (L) of the rear blade (D) are resting as shown in the gure.

• Use the knob (15) to make adjustments.

09/2017 BRUSH CLEANING CAUTION! It is advisable to wear protective gloves when cleaning the brush because there may be sharp debris.

1. Remove the brush as shown in Use/Operation chapter.

2. Clean the brush with water and detergent.

3. Check the condition of the brush bristles, ensuring they are not excessively worn; if necessary, replace the brush.

4. When using the pad, check it for wear and replace it if necessary.

RECOVERY TANK CLEANING

1. Drive the machine to the appointed disposal area.

2. Ensure that the machine is o󰀨 and the ignition key (41) has been removed (if equipped).

3. Drain the water in the tank through the hose (12).

4. Raise the cover (34).

5. Wash the inside of the tank (33) and the cover with clean water.

6. Clean the vacuum grid (31), release the fasteners (A, Fig. 8), open the grid (B) and recover the oat (C) then clean it carefully and reinstall it. 7. Remove the debris collection tank (D) and open its cover, then clean it carefully and reinstall it on the vacuum hose.

8. Check the condition of the tank cover gasket (E).

NOTE The gasket (E) allows the creation of a vacuum in the tank, which is necessary to suck up the recovery water. If necessary, replace the gasket (E) by removing it from its housing (F). When tting the new gasket, position the joint (G) in the lower area, as shown in the gure. 9. Check that the seating surface (H) of the gasket (E) is in good condition, clean and suitable to form a seal with the gasket itself.

10. Close the cover (34).

SOLUTION FILTER CLEANING

1. Drive the machine on a level oor.

2. Ensure that the machine is o󰀨 and the ignition key (41) has

been removed (if equipped).

3. Close the detergent solution tank valve (A, Fig. 9). The

valve is closed when it is in position (B) and it is open when it is in position (C).

4. Remove the transparent cover (D) and the gasket (E), then

remove the lter strainer (F). Wash and rinse them, then ret them carefully onto the lter support (G).

5. Open the valve (A).

DETERGENT TANK AND DETERGENT SYSTEM

CLEANING (For machines with Detergent System) Clean the detergent tank (17) as follows.

1. Drive the machine to the appointed disposal area.

2. Ensure that the machine is o󰀨 and the ignition key (41) has

been removed (if equipped).

3. Lift the cover (34) and check that the recovery tank (33) is

empty; if not, empty it using the drain hose (12).

4. Close the cover (34).

5. Grasp the handle (16) and carefully lift the tank (33).

8. Rinse and wash out the tank with clean water in the

appointed disposal area. NOTE For a thorough washing of the Detergent System, the cleaning procedure can also be performed with the detergent tank (17) full of water. Turn on the system with the ow set to the maximum (see the procedure in Use/Operation chapter). It is advisable to perform this type of cleaning when the Detergent System is dirt/furred up, because the machine has not been used/cleaned for a long time.

9. Replace the detergent tank (B) as shown in the gure, then

FUSE CHECK/REPLACEMENT

NOTE All machine electrical circuits are protected by auto-resettable electronic devices. The safety fuses activates only in case of serious damage. It is recommended to have the fuses replaced by qualied personnel only. Refer to the Service Manual available at any Nilsk Retailer. TROUBLESHOOTING

TROUBLE POSSIBLE CAUSE REMEDY

The motors are not operating; the button LEDs do not turn on. The battery connector is disconnected. Connect. The batteries are completely discharged. Charge the batteries. The machine does not move. (Only for drive versions) The machine is turned on with the ignition key and by keeping the hands on the presence sensors. Turn the ignition key to “0”, then try to start the machine again with hands o󰀨 the sensors. The battery symbol LEDs ash simultaneously. Brush motor overload. Use less aggressive brushes suitable for the oor to be cleaned. There are foreign materials (tangled threads, etc.) preventing the brush from rotating. Clean the brush hub. The scrubbing/drying function does not start. The control panel is broken. Replace. (*) The presence sensors are broken. Replace. (*) The dirty water vacuuming is insu󰀩cient. The recovery tank is full. Empty the tank. The vacuum grid is clogged or the oat is stuck closed. Clean the vacuum grid. Debris collection lter container clogged. Clean. The hose is disconnected from the squeegee. Connect. The squeegee is dirty or the squeegee blades are worn or damaged. Clean the squeegee or overturn/replace the blades. The tank cover is not properly closed, or the gasket is damaged. Correctly close the cover or clean/replace the gasket. The vacuum system does not work and the vacuum system button LED ashes fast. Vacuum system motor overload. Replace. (*) The solution ow to the brush is insu󰀩cient. Empty detergent solution tank. Rell. The solution lter is dirty. Clean the lter. The Detergent System (optional) or the tank is dirty/furred up. Clean with the washing cycle. The squeegee leaves marks on the oor. There is debris under the squeegee blades. Remove the debris. The squeegee blades are worn, chipped or torn. Overturn or replace the blades. The squeegee has not been balanced with the handwheel. Adjust the squeegee. (*) This maintenance procedure must be performed by an authorised Nilsk Service Center. NOTE If the machine has an optional battery charger installed, the machine cannot operate if the charger is not on board. In case of battery charger malfunction, contact an authorised Service Center. For any further information, contact Nilsk Service Centres.ENGLISH INSTRUCTIONS FOR USE

24 SC401, SCRUBTEC 344 - 9100002291

09/2017 SCRAPPING Have the machine scrapped by a qualied scrapper. Before scrapping the machine, remove and separate the following materials, which must be disposed of properly according to the Law in force: – Batteries – Brushes – Plastic hoses and components – Electrical and electronic components (*) (*) Refer to the nearest Nilsk Center especially when scrapping electrical and electronic components. Machine material composition and recyclability Type Recyclable percentage Weight % Aluminium 100 % 5 % Electric motors - various 29 % 29 % Ferrous materials 100 % 8 % Wiring harness 80 % 3 % Liquids 100 % 0 % Plastic - non-recyclable material 0 % 1 % Plastic - recyclable material 100 % 6 % Polyethylene 92 % 46 % Rubber 20 % 2 %GEBRUIKSAANWIJZING NEDERLANDS