SC250 - Scrubber NILFISK - Free user manual and instructions

USER MANUAL SC250 NILFISK

CONSERVATION DU MANUEL

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 SC250, Scrubtec 334 is a scrubber-dryer for commercial use. The machine serial number and model name are marked on the plate (30). Year of production (Date code: A16 means January 2016) 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 manual – 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.

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 The SC250 Scrubtec 334 scrubber-dryer is used to clean (scrubbing and drying) smooth and solid oors, in commercial or industrial environment, under safe operation conditions by a qualied operator. The scrubber-dryer cannot be used for tted carpet and carpet cleaning.INSTRUCTIONS FOR USE ENGLISH 9100001614 - SC250, Scrubtec 334 3 07/2016 CONVENTIONS Forward, backward, front, rear, left or right are intended with reference to the operator’s position when in use. UNPACKING/DELIVERY 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

• Scrubber-dryer Spare Parts List – 1 x lithium ion battery – 1 x battery charger – 1 x cylindrical brush – 1 x pair of squeegees CAUTION! After unpacking, carefully assemble the machine according to the instruction sheet inside the packaging. 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 use the machine on slopes with a gradient exceeding the specications.

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.ENGLISH INSTRUCTIONS FOR USE 4 SC250, Scrubtec 334 - 9100001614 07/2016 GENERAL INSTRUCTIONS Specic warnings and cautions to inform about potential damages to people and machine are shown below. DANGER! – Before performing any maintenance, repair, cleaning or replacement procedure disconnect the battery. – This machine must be used by properly trained operators only. – Do not wear jewels when working near electrical components. – 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. DANGER! (for battery and battery charger) – Read all safety warnings and all instructions. Failure to follow the warnings and instructions may result in electrical shock, re and/or serious injury. WARNING! (for battery and battery charger) – This machine is equipped with a lithium ion battery. – Do not use any other type of batteries; only use the one supplied with the machine or its original spare part. – Before each used, check if it’s damaged. – Do not soak in liquids. – Under abusive conditions, liquid may be ejected from the battery; avoid contact. If contact accidentally occurs, ush with water. lf liquid contacts eyes, additionally seek medical help. Liquid ejected from the battery may cause irritation or burns. – Do not use a battery pack or appliance that is damaged or modied. Damaged or modied batteries may exhibit unpredictable behavior resulting in re, explosion or risk of injury. – Do not expose a battery pack or appliance to re or excessive temperature. Exposure to re or temperature above 130 °C may cause explosion. – Do not store, use or recharge in environments with a temperature higher than 45 °C. – Do not recharge with temperatures lower than 0 °C. – Due to the risk of short-circuit, do not store the battery with metal objects. – If the battery is damages, take it to a Nilsk Service Centre. – Before decommissioning the machine, remove the battery. – Store the battery charger in a dry place. – If the battery charger or the cable are wet, do not use it. – Before using the battery charger, make sure that the frequency and voltage values, marked on the plate, correspond to the mains voltage values. – Do not use the battery charger in environments where there are ammable powders and/or explosive materials. – Do not handle the battery charger by its main cable. – 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 battery if the battery charger cable or the plug are damaged. – Do not cover the battery charger. – Always use the battery charger supplied with the machine or the original spare part. Any other battery charger must have the same specications indicated in the chapter Technical Characteristics and must supply a Safety Extra Low Voltage (SELV). WARNING! – Carefully read all the instructions before performing any maintenance/repair procedure. – 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 battery. – 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. revised 12/2016INSTRUCTIONS FOR USE ENGLISH 9100001614 - SC250, Scrubtec 334 5 07/2016 WARNING! – 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 use the machine on slopes with a gradient exceeding the specications. – 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. – 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. – 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 6 SC250, Scrubtec 334 - 9100001614 07/2016 TECHNICAL DATA Model SC250, Scrubtec 334 Solution and recovery water tank capacity 6 litres / 6 litres Machine size (length x width x height) 630 x 425 x 400 mm Cleaning width 340 mm Squeegee width 360 mm Rear rotating wheel diameter 75 mm Front wheel diameter 50 mm Cylindrical brush diameter 80 mm Brush pressure on the ground Max. 12 Kg Min/max solution ow 0.15 / 0.3 L/min Sound pressure level at workstation (ISO 11201, ISO 4871, EN 60335-2-72) (LpA) 66 dB(A) ± 3 dB(A) Machine sound power level (ISO 3744, ISO 4871, EN 60335-2-72) (LwA) 83 dB(A) Vibration level at the operator’s arms (ISO 5349-1, EN 60335-2-72) < 2.5 m/s

Maximum gradient when working 2 % Vacuum system motor power 180 W Vacuum system capacity 650 mm H

1. Handlebar with control panel

• Left LED on - normal cleaning with low solution ow

• Right LEDs on - cleaning with maximum solution ow

• LEDs ashing - solution tank empty

• LEDs o󰀨 - solution deactivated

4. Vacuum system push-button:

• LED on - vacuum system activated

5. Battery charging symbol

• 1 - 6 LEDs on - battery charge percentage

• 1 LED on - battery almost at (~ 10 min. remaining)

• 1 LED ashing - battery at (~ 5 min. remaining)

6. Grip handles with operator palm sensors

7. Front squeegee lifting lever

8. Handlebar inclination adjustment lever

9. Function block push-buttons:

• Lowered - parking/movement

• Raised - scrubbing/drying

11. Parking/handling front wheel

12. Recovery tank cover

13. Tanks (solution and recovery water) container

16. Machine body/cleaning deck

22. Brush drive belt compartment

26. Battery and electronics compartment cover

8 SC250, Scrubtec 334 - 9100001614 07/2016 ACCESSORIES/OPTIONS In addition to the standard components, the machine can be equipped with the following accessories/options, according to the machine specic use: – Cylindrical brush SOFT NYLON BLACK – Cylindrical brush MEDIUM NYLON WHITE – Cylindrical brush HARD GRIT 120 GREY – Cylindrical brush MICROFIBRE – Battery + battery charger kit For further information concerning the optional accessories, contact an authorised Retailer. WIRING DIAGRAM Key BAT+BMS Lithium ion battery + Control systemC1 Battery connectorCH Battery chargerEB1 Function electronic boardEB2 Display electronic boardM1 Brush motorM2 Vacuum system motorPM Solution pumpS1 Grip handle sensor (right)S2 Grip handle sensor (left)S3 Solution presence sensor Colour codes BK BlackBU BlueBN BrownGN GreenGY GreyOG OrangePK PinkRD RedVT VioletWH WhiteYE YellowP100931 USE/OPERATION

CHECKING/SETTING UP A NEW MACHINE

WARNING! The electric components of the machine can be seriously damaged if the battery is either improperly installed. Check the battery for damage before installation. 1. Install the battery (27), the cylindrical brush (18) and the squeegee bars (20), as shown in the instruction sheet inside the machine packaging. 2. When rst using the machine, perform a full charging cycle (see the procedure in the Maintenance chapter).INSTRUCTIONS FOR USE ENGLISH 9100001614 - SC250, Scrubtec 334 9 07/2016 PARK PEDAL NOTE In order to facilitate the use of the park pedal (10), slightly lift the front section of the machine by gaining leverage with your hands on the handlebar (A, Fig. 1). For parking/handling:

1. Putting your hands on the handlebar (A), slightly lift the

front section of the machine, then press the pedal (B, Fig. 1). In this condition, the front wheels (11) are resting on the oor and the brush/squeegee unit is lifted. For washing/drying:

2. Putting your hands on the handlebar (A), slightly lift the

front section of the machine, then lift the pedal (C). In this conditions, the front wheels (11) are retracted and the brush/squeegee unit is resting on the oor.

SOLUTION TANK FILLING

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.

1. Remove the tank cover (12).

2. Remove the cap (A, Fig. 2) on the solution tank (B).

3. Fill the solution tank (B) with water, leaving a few

centimetres from the top. The water temperature must not exceed 40 °C.

4. Use the measurement mark on the cap (A) to mix the

solution. The capacity to the mark is 30 ml, equivalent to a 0.5 % solution when diluted in a full tank of water. Always follow the dilution instructions on the label of the chemical product used to prepare the solution.

5. Replace the cap (A) on the solution tank.

6. Replace the tank cover (12).

NOTE Whenever the 2 LEDs on the solution push-button (3) ash, stop the machine and ll the solution tank.

1. Press the lever (8) and turn the handlebar (1), adjusting its position and inclination as preferred.

2. Ensure that the park pedal (10) is lowered, then push the machine over to the area to be cleaned.

3. Lift the park pedal (10) to bring the brush/squeegee unit in contact with the oor.

4. Press the switch (2) to start the machine.

5. Press the solution push-button (3) according to the type of cleaning to be performed:

• Left LED on - for normal dirt

• Right LEDs on - for heavy dirt

6. Manoeuvre the machine with your hands on the grip handles (6) and start scrubbing/drying the oor.

NOTE The grip handles (6) have sensors which allow the brush and solution to be started up only when the operator has their hands on at least one of the grip handles. 7. If necessary, deactivate the vacuum system by pressing the push-button (4, LED o󰀨), then press it again to reactivate it (LED on).

8. To collect medium-large debris, lift the front squeegee by pressing the lever (7).

To keep the front squeegee lifted, press the lever (7) and lock it with the push-button (9-A). 9. If necessary, in order to use the handlebar allowing it to tilt, press the lever (8) and lock it with the button (9-B). NOTE To unblock the function of the push-buttons (9-A, 9-B) and return to the lowered front squeegee and xed handlebar, briey press the squeegee lever (7) or the handlebar inclination lever (8). 10. For oors with particularly tough dirt, the pressure of the brush on the oor can be increased by turning the knob (19) to the left. Turn the knob (19) to the right to decrease the pressure. 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 3. NOTE If applicable, to better dry the grout lines between the tiles, move in a diagonal direction with respect to the oor layout, as shown in gure 4. Figure 3 Figure 4 P100934 P100935 CAUTION! In the event of a brush motor overload, the battery symbol LEDs (5) will ash simultaneously. If the overload persists, the brush stops. To start scrubbing again after a brush stop due to overload, turn o and then on the machine with the push- button (2). CAUTION! To avoid damaging the oor surface, do not use the brush without the solution and, when the machine is not operating, stop the brush rotation by releasing the grip handles (6). CAUTION! Machine must always be used with the solution; it is forbidden to use the machine with no solution. If the machine is used with no solution, the brush automatically stops after 1 minute. revised 05/2017INSTRUCTIONS FOR USE ENGLISH 9100001614 - SC250, Scrubtec 334 11 07/2016

BATTERY CHARGE LEVEL

The battery charge level can be viewed on the battery icon LEDs (5).The battery charge percentage depends on the number of LEDs lit, as shown in the gure 5.When the rst left LED ashes (15 %), the machine will only run for a few more minutes (this will depend on the characteristics of the work to perform).

STOPPING THE MACHINE

1. Turn o󰀨 the machine by pressing the switch (2). 2. Press the park pedal (10) to lift the brush/squeegee unit.

NOTE If the machine is on but not working (without the operator’s hands on the grip handles), it automatically turns o after 2 minutes. TANK EMPTYING An automatic oat shut-o󰀨 system turns o󰀨 the vacuum system when the recovery tank is full.The vacuum system deactivation is signalled by a sudden increase in the vacuum motor noise, and the oor is not dried.When the recovery tank is full, empty it according to the following procedure. Recovery tank emptying 1. Turn the machine o󰀨 and press the park pedal. 2. Drive the machine to the appointed disposal area.3. Turn and use the handle (A, Fig. 6) to lift the tanks container (B) from the machine.4. Remove the cover (C) and empty the recovery tank; rinse the tank with clean water at the end of the work. Solution tank emptying 5. Perform steps 1 to 4.6. Remove the plug (14) and empty the solution tank. Then, rinse the tank with clean water.7. Reinstall the tanks container (13) on the machine body (16), rotate the handle (A) to the horizontal position and reposition the tank cover (C).

MACHINE TRANSPORT/PARKING

1. Stop and turn o󰀨 the machine, then press the park pedal (10).2. While holding the machine in this position, drive it to the appointed parking area.3. If necessary, in order to manually lift the machine, bend the handlebar (24) and grip the handle (25), then transport the machine to the area where it is to be parked. 15% 30% 45% 60% 80% 100% Figure 5P100936

After working, before leaving the machine:

1. Stop the machine by switching it o󰀨, then lifting the brush

and squeegees with the park pedal (10).

2. Empty the tanks container (13).

3. Remove the brush and squeegees as described in the

specic paragraphs of the Maintenance chapter.

4. Charge the battery and perform the daily maintenance

procedures (see the Maintenance chapter).

6. Machine must be stored in parking mode; pedal (10).

7. Machine can be stored on the back in narrow places, see

8. Store the machine in a clean and dry place.

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

2. Make sure the solution tank is empty and recovery tank is

3. Remove the battery (27) from the machine as shown in the

following paragraph.

4. Make sure the battery is charged minimum 30 %.

REMOVING THE BATTERY

To remove the battery from the machine:

1. Remove the cover (26).

2. Use the battery handle (27) to lift it upwards, then remove

the battery from the machine. Figure 7 P100938 MAINTENANCE The lifespan of the machine and its maximum operating safety are ensured by correct and regular maintenance. The following chart provides the scheduled maintenance. The intervals shown may vary according to particular working conditions. WARNING! The procedures must be performed with the machine o and the battery disconnected. Moreover, carefully read the instructions in the Safety chapter. 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 Battery charging Squeegee bar cleaning Brush Cleaning Cleaning of the brush compartment and the debris collection tray Recovery tank and solution tank rinsing Cleaning of intake duct Cleaning of the solution dispensers Squeegee blades check Detergent lter cleaning Cleaning of the air lter and gaskets Squeegee bar replacement revised 12/2016INSTRUCTIONS FOR USE ENGLISH 9100001614 - SC250, Scrubtec 334 13 07/2016

1. Remove the battery (27) from the machine as shown in the

Removing the Battery paragraph.

2. Place the battery in the appointed recharging area.

3. Plug the battery charger cable plug (B) into the battery

socket (A, Fig. 8) and the power supply cable plug into a mains socket (the mains voltage and frequency must be compatible with the battery charger values shown on the data plate).

4. During charging, one of the 6 green LEDs (C) will remain

steadily on to indicate the percentage of charging performed, while the other LEDs (to the left of the LED which is on steadily) will ash sequentially.

5. When the 6th LED (C) is lit steadily, battery charging is

6. Disconnect the battery charger from the mains and from

the battery. NOTE When the battery is not connected to the battery charger, you can see the battery charge level by pressing the button (D) briey. The number of green LEDs (C) turned on is proportional to the battery charger level percentage.

Figure 8 P100939 BATTERY CHARGING CAUTION! Charge the battery when only 5, or less, LEDs are lit on the battery symbol (5). When the battery is discharged, charge is as soon as possible, as that condition makes its life shorter. Check for battery charge at least once a week.

1. Drive the machine to the appointed recharging area.

2. Ensure that the machine is o󰀨.

3. Plug the battery charger cable plug (29) into the machine socket and the power supply cable plug into a mains socket (the mains voltage and frequency must be compatible with the battery charger values shown on the data plate). NOTE When the battery charger is connected to the electrical mains, all machine functions are automatically cut o. During charging, one of the 6 LEDs of the battery icon (5) will remain steadily on to indicate the percentage of charging performed, while the other LEDs (to the left of the LED which is on steadily) will ash sequentially.

4. When the 6th LED of the battery icon (5) is lit steadily, battery charging is complete.

5. Disconnect the battery charger from the mains and from the machine socket (29).

6. Open the battery compartment cover (26) and place the battery charger in its tray (28).

7. Close the battery compartment (26).

CAUTION! Do not connect the batterycharger repeatedly to a fully charged battery. Any abuse could lead to permanent battery lock for safety reasons. To check the battery charge status, use the appropriate push-button (D, Fig. 8) on the battery, or switch on the machine. revised 08/2017ENGLISH INSTRUCTIONS FOR USE 14 SC250, Scrubtec 334 - 9100001614 07/2016

SQUEEGEE BAR CLEANING

CAUTION! It is advisable to wear protective gloves when cleaning the squeegee bars because there can be sharp debris. NOTE The squeegee bars must be clean and the blades must be in good conditions in order to get a good drying. CAUTION! The squeegee bars are fastened to the machine with a snap system and can be easily removed.

1. Ensure that the machine is o󰀨.

2. Remove the tanks container (13) from the machine body

using the handle (15).

3. Lift the machine body to access the lower part of the

4. Remove the squeegee bars (20) by pulling outwards.

5. Clean and wash the squeegee bars. In particular, clean the

compartments (A, Fig. 9) and the vacuum hole (B). Check the blades for integrity, cuts and tears; if necessary replace the squeegee bars.

6. Before installing the squeegee bars, clean the recovery

water duct (G, Fig. 10) thoroughly.

7. Install the squeegee bars (20) and make sure they are

2. Clean and wash the cylindrical brush (18) with water and

3. Check the brush bristles for integrity and wear; if

necessary, replace the brush.

4. Carefully clean the brush compartment (B).

5. Remove the debris collection tray (C), clean it and rinse it

with clean water, then put it back in its seat.

6. Disassemble the solution dispensers (D) and clean them

with water and detergent, then rinse and reassemble in the relevant housings.

7. Reinstall the cylindrical brush (18) on the drive hub (E) and

engage it by turning the lever (F) clockwise.

RECOVERY TANK AND COVER CLEANING

1. Lift the tanks container (13) from the machine body using

2. Remove the cover (A, Fig. 11) and clean it with hot water.

3. Remove the suction grid (B) along with the oat and clean

5. Check the recovery tank cover gasket (D) for integrity.

NOTE The gasket (D) creates the vacuum in the tank that is necessary to vacuum up the recovery water. If necessary, replace the gasket (D) by removing it from its housing on the cover. When assembling the new gasket, install the joint (E) in the area shown in the gure.

7. Clean the tank compartment (G) with water and detergent,

then rinse carefully.

8. Check that the seating surface (H) of the gasket (D) is

clean and adequate for the gasket itself.

9. Reassemble the components.

10. If necessary wash the solution tank with clean water.

CLEANING OF THE SOLUTION FILTER, AIR

1. Remove the tanks container (13) from the machine body

3. Clean them and reinstall in the housing (C).

4. Remove the air lter (D) and clean it.

5. Ret the lter in the housing of the gasket (E).

NOTE The gaskets (E) and (F) create vacuum in the system that is necessary for vacuuming the recovery water.

6. Check and clean the gasket (E) of the vacuum system

7. Check and clean the recovery water duct gasket (F).

8. Rinse the inside of the duct (G) with water.