BA 410 - Scrubber NILFISK - Free user manual and instructions

USER MANUAL BA 410 NILFISK

Edition 4 2009-11 @Nilfisk Printed in Hungary setting standards

CONSERVATION DU MANUEL

43. Plateau support disque

MANUAL PURPOSE AND CONTENTS

HOW TO KEEP THIS MANUAL.

DECLARATION OF CONFORMITY

IDENTIFICATION DATA...

OTHER REFERENCE MANUALS

SPARE PARTS AND MAINTENANCE

CHANGES AND IMPROVEMENTS

MACHINE START AND STOP..

SOLUTION FILTER CLEANING

INTRODUCTION NOTE [à] 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. lt contains information about technical data, safety, operation, storage, maintenance, spare parts and disposal. Before performing any procedure on the machine, the operators and qualified technicians must read this Manual carefully. Contact Nilfisk in case of doubts regarding the interpretation of the instructions and for any further information. TARGET This Manual is intended for operators and technicians qualified to perform the machine maintenance. The operators must not perform procedures reserved for qualified technicians. Nilfisk will not be answerable for damages coming from the non-observance of this prohibition.

HOW TO KEEP THIS MANUAL

The User 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, certifies the machine conformity with the law in force. NOTE [à] Two copies of the original declaration of conformity are provided together with the machine documentation. IDENTIFICATION DATA The machine model and serial number are marked on the plate (1). The machine production year is written in the declaration of conformity and it is also indicated by the first two figures of the machine serial number. This information is useful when requiring machine spare parts. Use the following table to write down the machine identification data. MACHINE model … MACHINE serial number …

OTHER REFERENCE MANUALS

— Spare Parts List (supplied with the machine) — Service Manual (that can be consulted at Nilfisk Service Centers)

SPARE PARTS AND MAINTENANCE

All necessary operating, maintenance and repair procedures must be performed by qualified personnel or by Nilfisk Service Centers. Only original spare parts and accessories must be used. Contact Nilfisk for service or to order spare parts and accessories, specifying the machine model and serial number. 2 909 5685 000(4)2009-11 A CA 410

CHANGES AND IMPROVEMENTS

Nilfisk constantly improves its products and reserves the right to make changes and improvements at its discretion without being obliged to apply such benefits to the machines that were previously sold. Any change and/or addition of accessory must be approved and performed by Nilfisk. OPERATION CAPABILITIES These scrubber-dryers are used to clean (scrubbing and drying) smooth and solid floors, in civil or industrial environment, under safe operation conditions by a qualified operator. The scrubber-dryers cannot be used for fitted 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 (2). 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 fill in a damage claim. Please check that the following items have been supplied with the machine: — Scrubber-dryer User Manual — Scrubber-dryer Spare Parts List 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 effective without the total cooperation of the person responsible for the machine operation. Most of the accidents that may occur in a factory, while working or moving around, are caused by failure to comply with the simplest rules for exercising prudence. A careful and prudent operator is the best guarantee against accidents and is essential for successful completion of any prevention program. SYMBOLS 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 Quick Start Guide before performing any procedure. CA 410 909 5685 000(4)2009-11 A 3

GENERAL INSTRUCTIONS Specific 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 plug from the electrical mains. — This machine must be used by properly trained operators only. Children or disabled people cannot use this machine. — 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, flammable and/or explosive powders, liquids or vapours: This machine is not suitable for collecting dangerous powders. WARNING! — The machine power supply cable is grounded and the relevant plug is grounded too. In case of machine malfunction or breakdown, grounding connection reduces the risk of electric shock. — The power supply cable plug must be connected to an appropriate outlet, which is grounded according to law in force. — Improper connection can cause electric shock. Consult a qualified technician to make sure that the outlet is properly grounded. — Do not tamper with the power supply cable plug. If the power supply cable plug cannot be connected to the outlet, have new grounded outlet installed by a qualified technician, according to the law in force. — Before connecting the power supply cable to the electrical mains, check that frequency and voltage, shown on the machine serial number plate (1), match the electrical mains voltage. — Do not unplug the machine by pulling the supply cable. To unplug, grasp the plug, not the cable. — Do not handle the plug or the machine with wet hands. — Turn off all controls before unplugging. — Regularly check the power supply cable for damages, cracks, cuts and wear. If necessary, replace it. — _lfthe power supply cable is damaged, it must be replaced by the Manufacturer or by an authorised Service Centre. — To avoid any risk, if the power supply cable is damaged, contact the Nilfisk Service Center or a qualified technician. — Do not pull or carry the machine by the power supply cable and never use the power supply cable as a handle. Do not close a door on the power supply cable, or pull the power supply cable around sharp edges or corners. Do not run the machine on the power supply cable. — The brushes must not come into contact with the power supply cable. — Keep the power supply cable away from heated surfaces. — To reduce the risk of fire, electric shock, or injury, do not leave the machine unattended when it is plugged in. Disconnect the machine from the electrical mains when not in use and before performing maintenance procedures. — Do not leave the machine unattended without being sure that it cannot move independently. — Always protect the machine against the sun, rain and bad weather, both under operation and inactivity condition. Store the machine indoors, in a dry place: This machine must be used in dry conditions, it must not be used or kept outdoors in wet conditions. — Before using the machine, close all doors and/or covers. — Do not allow to be used as a toy. Close attention is necessary when used near children. — Use only as shown in this Manual. Use only Nilfisk’s recommended accessories. — Take all necessary precautions to prevent hair, jewels and loose clothes from being caught by the machine moving parts. 4 909 5685 000(4)2009-11 A CA 410

WARNING! Do not use the machine on incline. Do not use the machine in particularly dusty areas. While using this machine, take care not to cause damage to people or objects. Do not bump into shelves or scaffoldings, especially where there is a risk of falling objects. Do not put any can containing fluids on the machine. 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 floor cleaning detergents, follow the instructions on the labels of the detergent bottles. To handle floor cleaning detergents, wear suitable gloves and protections. Do not use the machine as a means of transport. Do not allow the brush/pad to operate while the machine is stationary to avoid damaging the floor. In case of fire, use a powder fire 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 flow. Do not remove or modify the plates affixed 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 brushes and pads supplied with the machine and those specified in the User Manual. Using other brushes or pads could reduce safety. In case of machine malfunctions, ensure that these are not due to lack of maintenance. Otherwise, request assistance from the authorised personnel or from an authorised Service Center. If the machine + __ does not work properly + is damaged + __has water or foam leaks +__has been left outdoors exposed to bad weather conditions + __is wet or has been dropped into water turn it off immediately and contact the Nilfisk Service Center or a qualified technician. 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. Carefully read all the instructions before performing any maintenance/repair procedure. 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 (electronic components, etc.), which are subject to standards that require disposal in special centres (see the Scrapping chapter). CA 410 909 5685 000(4)2009-11 A 5

MACHINE DESCRIPTION MACHINE STRUCTURE Handlebar Handlebar inclination adjusting knob Solution flow control lever HEON = usage, for a washing autonomy set for 70-80 minutes)

6. Recovery tank cover

7... Rear support wheel for transport/parking

8. Central wheels on fixed axle

10. Brush/pad-holder deck

12. Squeegee mounting handwheels

14. Rear squeegee blade

15. Squeegee blade mounting springs

16. Recovery water drain hose

Serial number plate/technical data/conformity certification Solution flow control lever ECO position (water “economy” Recovery water drain hose bracket Solution drain valve Squeegee lifting/lowering lever . Solution filter Power supply cable . Squeegee vacuum hose

Transport/parking device 23a. Transport/parking device (engaged) 23b. Transport/parking device (disengaged) Transport/parking device positioning pin Brush/pad-holder support Recovery tank Solution tank Compensation hole

MACHINE STRUCTURE (Continues)

Recovery tank cover (open) Recovery tank cover gasket Brush/pad-holder support Recovery tank compartment Solution tank filer neck Vacuum grid with automatic shut-off float Recovery water drain hole Vacuum system motor Brush/pad-holder motor Brush/pad-holder deck Machine speed adjusting screw Brush Pad-holder Pad Terminal board box Screw Brush/pad-holder engagement rotation direction

52. Brush/pad-holder switch

53. Vacuum system switch

ACCESSORIES/OPTIONS S310237A In addition to the standard components, the machine can be equipped with the following accessories/options, according to the machine specific use: — _ Brushes/pads of different materials For further information concerning the optional accessories, contact an authorised Retailer. TECHNICAL DATA General CA 410 - 230 Volts CA 410 - 115 Volts Machine length 997 mm Machine width with squeegee 720 mm Machine width without squeegee 570 mm Min/max machine height with adjustable handlebar 730 - 836 mm Total machine weight 65 kg Minimum turning radius 750 mm Cleaning width 430 mm Central wheel diameter 250 mm Brush/pad diameter 430 - 432 mm Rear wheel pressure on the floor 1.0 N/mme Front wheel pressure on the floor 1.9 N/mm? Brush/pad pressure on the floor 28 kg Performance CA410-230 Voits | CA 410-115 Voits Vacuuming 1,316 mmH,0 Brush/pad-holder motor speed 150 rpm I 170 rpm Sound pressure level at workstation (ISO 11201, ISO 4871) (LpA) 70 dB(A) + 3dB(A) Machine sound pressure level (ISO 3744, ISO 4871) (LWA) 87 dB(A) Vibration level at the operators arms (ISO 5349-1) < 2.5 m/s? Vacuum system motor power 550 W Brush/pad motor power 1,100 W 550 W Gradeability 2% System voltage 230 V- 50 Hz 115 V- 60 Hz Solution tank capacity 23 litres Recovery tank capacity 21 litres 8 909 5685 000(4)2009-11 A CA 410

USE 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. Do not cover these plates for any reason and immediately replace them if damaged.

BEFORE MACHINE START-UP

Brush or pad-holder installation NOTE [à Use either the brush (42) or the pad-holder (43) according to the type of floor to be cleaned. Insert the positioning pin (24) and disengage the machine transport/parking device (23b). Lift the brush/pad-holder deck (10) by prying the handlebar (2). Place the brush (42) or the pad-holder (43) under the deck. Lower the deck (10) by using the handlebar (2). Connect the power supply cable (21) to the electrical mains. Engage the brush/pad-holder by pressing the brush/pad switch (52) for a few seconds. If the procedure is difficult, manually turn the brush/pad-holder counter-clockwise (47). PDHBWND = Brush/pad application guide (suggestions only) Types of brushes available Midlite Grit 180 Midgrit 240 Prolite Union Mix Concrete Terrazzo floor Ceramic tiles/quarrystones Marble General cleaning Vinyl iles Rubber tiles Rubber tiles Polishing Marble Vinyl iles Squeegee installation 7... Install the squeegee (11) and fasten it with the handwheels (12), then connect the vacuum hose (22) to the squeegee. Solution tank filling

8. Use the filler neck (35) to fill the tank (27) with a solution suitable for the work to be performed.

Do not fill the solution tank completely, leave a few centimetres from the edge. 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. CAUTION! ÂÀ Use only low-foam and non-flammable detergents, intended for automatic scrubber applications. Adjustments

9. Adjust the handlebar (2) with the knobs (3) to reach a comfortable position.

10 909 5685 000(4)2009-11 A CA 410

MACHINE START AND STOP

Starting the machine

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

2. Drive the machine to the working place by pushing it with the hands on the handlebar (2).

3. Connect the power supply cable (21) to the electrical mains.

WARNING! Before connecting the power supply cable to the electrical mains, check that frequency and voltage, shown on the machine serial number plate (1), match the electrical mains voltage.

4. Lower the squeegee (11) with the lever (19).

5. Turn the solution flow control lever (4) to one of the following positions, according to the type of cleaning to be performed: + ECO system: when the lever (4) is turned to ECO position (5), the machine works in a special condition of programmed water “economy” usage; as the water flow is set and constant, the machine can work with a washing autonomy of 70-80 minutes (0.3 litres/min average). + Variable system: when the lever is turned to the left (variable flow) the flow rate can increase up to 1 litres/min. + In no caseit is possible to close completely the water flow to the brushes during operation. 6. While keeping the hand on the handiebar (2), start the machine by turning the brush/pad-holder switch and the vacuum system switch (52 and 53) to “l”. Stopping the machine

7. Turn the brush/pad-holder switch and the vacuum system switch (52 and 53) to “0”.

8. Disconnect the power supply cable (21) from the electrical mains.

9. Lift the squeegee with the lever (19).

10. Insert the positioning pin (24) and lift the brush/pad-holder by engaging the transport/parking device (23a).

MACHINE OPERATION (SCRUBBING/DRYING)

1. Startthe machine as shown in the previous paragraph.

2. While keeping both hands on the handlebar (2), move the machine and start scrubbing/drying the floor.

CAUTION! To avoid damaging the floor surface, do not use the brushes without the solution and, when the machine is not operating, stop the brush/pad-holder by pressing the switch (52). CAUTION! Before lifting the brush/pad, turn it off by pressing the switch (52).

3. lfnecessary, adjust the solution quantity by using the lever (4).

NOTE For correct scrubbing/drying of floors at the sides of the walls, Nilfisk suggests to go near the walls with the right side of the machine as shown in figure 1. Figure 1 P100160 Machine speed adjustment

4. The machine speed varies according to the type of floor to be cleaned and the choice of using the brush or the pad.

If necessary, it is possible to adjust the machine speed, according to the procedure shown in Maintenance chapter. CA 410 909 5685 000(4)2009-11 A 11

To transport/park the machine, proceed as follows.

1. Turn the brush/pad-holder switch and the vacuum system switch (52 and 53) to “0”.

2. Disconnect the power supply cable (21) from the electrical mains and place it on the holder.

3. Lift the squeegee with the lever (19).

4... Grasp the handlebar (2) and slightly lower it until the rear wheel (7) comes into contact with the floor (Fig. 2). While holding the machine in this position, drive it to the transport/parking area. 5. In order not to drag the brush/pad on the floor and leave wet marks, when finishing working, remove the brush/pad-holder from the deck by using the release device (see the procedure in After Using The Machine paragraph), then place it on the support (25). Figure 2

TANK EMPTYING An automatic float shut-off system (36) turns off the vacuum system when the recovery tank (26) is full. The vacuum system shutdown, due to the recovery tank filling, is signalled by an increase in the vacuum system motor noise, moreover the floor is not dried. CAUTION! If the vacuum system turns off accidentally (for example, when the float is activated because of a sudden machine movement), to resume the operation: turn off the vacuum system by pressing the switch (53), then open the cover (6) and check that the float inside the grid (36) has gone down to the water level. Then close the cover (6) and turn on the vacuum system by pressing the switch (53). When the recovery tank (26) is full, empty it according to the following procedure. Recovery tank emptying Stop the machine by pressing the brush/pad-holder and vacuum system switches (52 and 53). Disconnect the power supply cable (21) from the electrical mains and place it on the holder. Lift the squeegee with the lever (19). Drive the machine to the appointed disposal area. Insert the positioning pin (24) and lift the brush/pad-holder by engaging the transport/parking device (23a). Empty the recovery tank (26) with the drain hose (16). Then, rinse the tank with clean water. PDHBWND = Solution tank emptying Perform steps 1 to 4. 7... Empty the solution tank (27) by using the drain valve (18).

8. Then, rinse the tank with clean water.

12 909 5685 000(4)2009-11 A CA 410

After working, before leaving the machine: 1... Remove the brush/pad-holder as follows: + With the brush/pad-holder lifted, turn the brush/pad-holder switch (52) to “l” and, after a few seconds, back to “0”, thus releasing the brush/pad-holder.

2. Disconnect the power supply cable (21) from the electrical mains and place it on the holder.

3. Empty the tanks (26 and 27) as shown in the previous paragraph.

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

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

RECOVERY TANK REMOVAL

To perform check and maintenance procedures, it may be necessary to remove the recovery tank (26) as shown below. Empty the recovery tank (26) as shown in the relevant paragraph. Drive the machine on a level floor. Make sure that the power supply cable (21) is disconnected from the electrical mains. Disconnect the vacuum hose (22) from the squeegee (11). Disconnect the recovery water drain hose (16) from the bracket (17). Open the cover (6). Grasp the recovery tank (A, Fig. 3) in the area (B) and slightly raise it. Disconnect the vacuum hose (C) from the tank, then remove the tank (A) with the hoses (D) and (E). pimEsN A Figure 3 S310243A

MACHINE LONG INACTIVITY

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

After the first 8 hours, check the machine fastening and connecting parts for proper tightening. Check the visible parts for integrity and leakage. CA 410 909 5685 000(4)2009-11 A 13

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, which are to be defined by the person in charge of the maintenance. WARNING! Maintenance procedures must be performed with the machine switched off and the power supply cable disconnected from the electrical mains. Moreover, carefully read the instructions in the Safety chapter. All scheduled or extraordinary maintenance procedures must be performed by qualified personnel, or by an authorised Service Center. This Manual describes only the easier and most common maintenance procedures. NOTE 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

Daily, after using the machine Every six Weekly months Yearly Procedure Squeegee cleaning Brush cleaning Tank and vacuum grid cleaning Squeegee blade check and replacement Solution filter cleaning Screw and nut tightening check Vacuum system motor carbon brush check and replacement (1) And after the first 8 working hours. (2) This maintenance procedure must be performed by an authorised Nilfisk Service Center. SQUEEGEE CLEANING NOTE [à] The squeegee must be clean and its blades must be in good conditions in order to get a good drying. CAUTION! ÂA It is advisable to wear protective gloves when cleaning the squeegee because there may be sharp debris. Drive the machine on a level floor. Make sure that the power supply cable (21) is disconnected from the electrical mains. Lower the squeegee with the lever (19). Disconnect the vacuum hose (22) from the squeegee. Loosen the handwheels (12) and remove the squeegee (11). Wash and clean the squeegee. In particular, clean the compartments (A, Fig. 4) and the vacuum hole (B) from dirt and debris. Check the front blade (C) and the rear blade (D) for integrity, cuts and tears; if necessary replace them (see the procedure in the following paragraph). Assemble the components in the reverse order of disassembly. NBABRON =

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

2. Check that the front blade edges (E, Fig. 4) and the rear blade edges (1) lay down on the same level, along their length: if necessary adjust the height according to the following procedure: + Remove the mounting springs (F), then adjust the front blade (C) and the rear blade (D). + Install the mounting springs on the front and rear blades. 3. Check the front blade (C) and rear blade (D) for integrity, cuts and tears; if necessary replace them as shown below. Also check the front corner (H) of the rear blade for wear; if it is worn, overturn the blade to replace the worn corner with the other one (!), ifit is integral. If the other corner is worn too, replace the blade according to the following procedure: + Remove the mounting springs (F) and then replace (or overturn) the rear blade (D). + Install the mounting springs on the front and rear blades.

4. Install the squeegee (11) and screw tighten the handwheels (12).

5. Connect the vacuum hose (22) to the squeegee (11).

Figure 4 S310240 BRUSH CLEANING NOTE [à] It is advisable to wear protective gloves when cleaning the brushes because there may be sharp debris. 1... Remove the brush, as shown in Use chapter.

2. Clean the brush with water and detergent.

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

CA 410 909 5685 000(4)2009-11 A 15

1. Drive the machine to the appointed disposal area.

2. Make sure that the power supply cable (21) is disconnected from the electrical mains.

3. Open the cover (6), then clean and wash the cover, the tanks (26 and 27) and the vacuum grid (36) with clean water.

Drain the water from the tanks with the drain hose (16) and the valve (18). 4. Ifnecessary, release the fasteners (B, Fig. 5) and open the grid (A); recover the float (C), clean all the components and then reinstall them.

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

NOTE [à] The gasket (D) creates vacuum in the tank that is necessary for vacuuming the recovery water. If necessary replace the gasket (D) by removing it from its housing (E). When assembling the new gasket, install the joint (F) in the rear central area, as shown in the figure. Check the seating surface (D) of the gasket (G) for integrity and sealing capabilities. Check the compensation hole (28) for clogging.

NOTE [à] The hole (28), allowing to compensate the air in the cover air gap, contributes to create vacuum in the tank.

8. Close the recovery tank cover (6).

SOLUTION FILTER CLEANING

9. Empty the solution tank (27) as shown in the relevant paragraph.

10. Drive the machine on a level floor.

11. Make sure that the power supply cable (21) is disconnected from the electrical mains.

12. Remove the transparent cover (A, Fig. 6), then remove the filter strainer (B). Clean and install them on the support (C). NOTE [ The filter strainer (B) must be correctly positioned on the housing (D) of the support (C). Figure 6 S310232A

MACHINE SPEED ADJUSTMENT

NOTE The machine speed varies according to the type of floor to be cleaned and the choice of using the brush or the pad. If necessary, perform the following procedure. 1... Remove the recovery tank as shown in Use chapter.

2. Adjust the machine speed with the screw (41) as shown below:

+ Loosen the screw (46), on the right side of the machine, by turning it counter-clockwise. + Turn the adjusting screw (41) counter-clockwise to increase the machine speed. + Turn the adjusting screw (41) clockwise to decrease the machine speed. + After adjusting, tighten the screw (46).

3. Install the recovery tank as shown in Use chapter.

4... With the machine ready to operate, perform hands-on tests of the machine and, if other adjustments are necessary, repeat steps 1 to 4. CA 410 909 5685 000(4)2009-11 A 17

ENGLISH USER MANUAL TROUBLESHOOTING Trouble Possible Cause Remedy The motors do not turn on The power supply cable (21) is faulty or disconnected from the electrical mains Replace or connect the cable The dirty water vacuuming is insufficient The recovery water tank (26) is full Empty The vacuum grid (36) is clogged or the float is closing Clean the grid and check the float The vacuum hose (22) is disconnected from the squeegee (11) or itis damaged Connect The squeegee (11) is dirty, or the squeegee blades (13, 14) are worn or damaged Clean the squeegee or replace the blades The recovery water tank cover (6) is not properly closed, or the gasket (32) is damaged Check and/or clean the seating surface or replace the gasket The recovery water tank (6) is dirty (clogged drain hole) Clean The solution flow is insufficient The solution filter (20) is dirty. Clean The squeegee leaves marks on the floor There is debris under the squeegee blades (13, 14) Remove the debris The squeegee blades (13, 14) are worn, chipped or torn Replace the blades For further information refer to the Service Manual, available at any Nilfisk Service Center. SCRAPPING Have the machine scrapped by a qualified scrapper. Before scrapping the machine, remove and separate the following materials, which must be disposed of properly according to the Law in force: — Brush — Pad — Electrical and electronic components (*) (*) _Refer to the nearest Nilfisk Center especially when scrapping electrical and electronic components. 18 909 5685 000(4)2009-11 A CA 410