Nilfisk-Advance SR 1000S B Instruction Manual

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USER MANUAL

146 1957 000 1

INTRODUCTION ................................................................................................................................... 2

MANUAL PURPOSE AND CONTENTS ........................................................................................................... 2

TARGET ........................................................................................................................................................... 2

HOW TO KEEP THIS MANUAL ....................................................................................................................... 2

CONFORMITY CERTIFICATE ......................................................................................................................... 2

IDENTIFICATION DATA ................................................................................................................................... 2

OTHER REFERENCE MANUALS .................................................................................................................... 2

SPARE PARTS AND MAINTENANCE ............................................................................................................. 2

CHANGES AND IMPROVEMENTS ................................................................................................................. 2

SAFETY ................................................................................................................................................. 3

SYMBOLS ......................................................................................................................................................... 3

GENERAL INSTRUCTIONS ............................................................................................................................. 3

UNPACKING/DELIVERY ...................................................................................................................... 4

MACHINE DESCRIPTION ..................................................................................................................... 5

OPERATION CAPABILITIES ............................................................................................................................ 5

CONVENTIONS ................................................................................................................................................ 5

DESCRIPTION ................................................................................................................................................. 5

TECHNICAL DATA ............................................................................................................................... 6

ACCESSORIES/OPTIONS ............................................................................................................................... 7

USE ........................................................................................................................................................ 8

BATTERY CHECK/SETTING ON A NEW MACHINE ...................................................................................... 8

WET OR GEL BATTERY SETTING ................................................................................................................. 9

BEFORE MACHINE START-UP ....................................................................................................................... 9

MACHINE START AND STOP ......................................................................................................................... 9

MACHINE OPERATION ................................................................................................................................. 10

HOPPER DUMPING ....................................................................................................................................... 10

AFTER MACHINE USE .................................................................................................................................. 10

PUSHING/TOWING THE MACHINE .............................................................................................................. 10

MACHINE LONG INACTIVITY ....................................................................................................................... 10

FIRST PERIOD OF USE ................................................................................................................................ 10

MAINTENANCE .................................................................................................................................. 11

SCHEDULED MAINTENANCE TABLE .......................................................................................................... 11

MAIN BROOM HEIGHT CHECK AND ADJUSTMENT .................................................................................. 12

MAIN BROOM REPLACEMENT .................................................................................................................... 12

SIDE BROOM HEIGHT CHECK AND ADJUSTMENT ................................................................................... 13

SIDE BROOM REPLACEMENT ..................................................................................................................... 13

CLOSED POCKET FILTER CLEANING AND INTEGRITY CHECK .............................................................. 13

SKIRT HEIGHT AND OPERATION CHECK .................................................................................................. 14

HOOD SAFETY SWITCH OPERATION CHECK ........................................................................................... 14

CHARGING THE BATTERIES ....................................................................................................................... 14

SAFETY FUNCTIONS ......................................................................................................................... 16

EMERGENCY PUSH-BUTTON ...................................................................................................................... 16

HOOD SAFETY SWITCH ............................................................................................................................... 16

DRIVER'S SEAT MICROSWITCH .................................................................................................................. 16

TROUBLESHOOTING ........................................................................................................................ 16

SCRAPPING ........................................................................................................................................ 16

USER MANUAL

2 146 1957 000

INTRODUCTION

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, operation,
storage, maintenance, spare parts and safety.
Before carrying out any procedure on the machine, the
operators and qualified technicians must read this Manual
carefully. Contact Nilfisk-Advance 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 carry out operations reserved for
qualified Technicians. Nilfisk-Advance 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.

CONFORMITY CERTIFICATE

Figure A shows the documentation certifying the sweeper
conformity with the law in force.

IDENTIFICATION DATA

The machine model and serial number are marked on the
plate (1, Fig. U) applied on the frame and can be read by
lifting the hood (10, Fig. C).
The machine model year is written in the EC statement and it
is also indicated by the first two figures of the machine serial
number.
This information is useful when ordering machine spare parts.
Use the following table to write down the machine
identification data for any further reference.

OTHER REFERENCE MANUALS

– Electronic Battery Charger Manual (if equipped), to be

considered an 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
Nilfisk-Advance Service Centers)

SPARE PARTS AND MAINTENANCE

All necessary operating, maintenance and repair procedures
must be carried out by qualified personnel or by
Nilfisk-Advance Service Centers listed at the end of this
Manual. Only original spare parts and accessories must be
used.
Contact Nilfisk-Advance for service or to order spare parts
and accessories, specifying the machine model and serial
number.

CHANGES AND IMPROVEMENTS

Nilfisk-Advance 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 sold previously.
Any change and/or addition of accessory must be approved
and performed by Nilfisk-Advance.

NOTE
Two copies of the original EC Declaration of
Conformity are provided together with the
machine documentation.

MACHINE model ...........................................................

MACHINE serial number ...............................................

USER MANUAL

146 1957 000 3

SAFETY

The following symbols indicate potentially dangerous
situations. Always read this information carefully and take all
necessary precautions to safeguard people and property.
The machine 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

GENERAL INSTRUCTIONS

Specific warnings and cautions to inform about potential
damages to people and machine are shown below.

– Remove the key from the ignition switch and disconnect

the batteries before performing any maintenance/repair
procedure.

– This machine must be used by properly trained and

authorised personnel only. Children or disabled people
cannot use this machine.

– Keep sparks, flames and incandescent materials away

from the batteries. During the normal operation
explosive gases are released.

– Do not wear jewels when working near electrical

components.

– Do not work under the lifted machine, if it is not securely

fixed.

– Do not operate the machine near toxic, dangerous,

flammable and/or explosive powders, liquids or vapours.

– Battery charging produces highly explosive hydrogen

gas. Keep the hood open during battery charging and
perform this procedure in well-ventilated areas and away
from naked flames.

– Carefully read all the instructions before carrying out any

maintenance/repair procedure.

– Take all necessary precautions to prevent hair, jewels

and loose clothes from being caught in the moving parts

of the machine.
– Do not smoke while charging the batteries.
– Before connecting the battery charger to the electrical

mains, make sure that frequency and voltage shown in

the relevant Manual correspond to the mains voltage.
– 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 Centre.
– 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.
– To reduce the risk of fire, electric shock, or injury, do not

leave the machine unattended when it is plugged in.
– To avoid electric shock, do not expose to rain. Store the

machine indoors.
– Do not allow to be used as a toy. Close attention is

necessary when used near children.
– Use only as described in this Manual. Use only

Nilfisk-Advance recommended accessories.
– Do not leave the machine unattended with the key

inserted in the ignition switch and the parking brake

disengaged.
– Do not use the machine on slopes with a gradient

exceeding the value shown on the machine.

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 attention to
the paragraphs marked by this symbol.

&

NOTE
It indicates that it is necessary to consult the
User Manual before performing any procedure.

14

DANGER!

WARNING!

USER MANUAL

4 146 1957 000

– Do not wash the machine with direct or pressurised

water jets, or with corrosive substances. Do not use

compressed air to clean this type of machine.
– Do not use the machine in particularly dusty areas.
– While using this machine, take care not to cause

damage to other people, and children especially.
– The storage temperature must be between 0°C and

+40°C.
– The machine operating temperature must be between

0°C and +40°C.
– The humidity must be between 30% and 95%.
– Always protect the machine against the sun, rain and

bad weather, both under operation and inactivity

condition.
– Do not use the machine as a means of transport.
– Do not allow the brooms to operate while the machine is

stationary to avoid damaging the floor.
– In case of fire, possibly use a powder fire extinguisher,

not a water one.
– Do not bump into shelves or scaffoldings, especially

where there is a risk of falling objects.
– Adjust the operation speed to suit the floor conditions.
– Avoid stopping the machine movement by turning the

ignition switch to “0”, and avoid pressing the emergency

push-button, before the machine has stopped by

releasing the accelerator pedal or by pressing the brake

pedal.
– Do not tamper with the machine safety guards and follow

the ordinary maintenance instructions scrupulously.
– Do not remove or modify the plates affixed to the

machine.
– 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.
– In case of part replacement, order ORIGINAL spare

parts from an authorised Dealer or Retailer.
– To ensure the proper and safe operation of the machine,

have the scheduled maintenance, detailed in the

relevant chapter of this Manual, performed by the

authorised personnel or an authorised Service Center.
– The machine must be disposed of properly, because of

the presence of toxic-harmful materials (batteries, oils,

etc.), which are subject to standards that require

disposal in special centres (see the Scrapping chapter).
– If the machine is used according to the instructions, the

vibrations do not cause dangerous situations. The

machine vibration level is less than 2.5 m/s

2

(98/37/EEG-EN-1033/1995-EN 1032).
– When lead (WET) batteries are installed, do not tilt the

machine for more than 30° from the horizontal plane to

prevent the highly corrosive acid from leaking out of the

batteries. When the machine is to be tilted to perform

maintenance procedures, remove the batteries.

UNPACKING/DELIVERY

Upon delivery carefully check that the machine and its
packing have not been 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.

Check that the machine is equipped as follows.
Technical documents:
– Sweeper User Manual
– Electronic Battery Charger Manual (if equipped)
– Sweeper Spare Parts List

USER MANUAL

146 1957 000 5

MACHINE DESCRIPTION

OPERATION CAPABILITIES

This sweeper has been designed and built to clean (by
sweeping and vacuuming) smooth and solid floors, in civil and
industrial environments and to collect dust and light debris
under safe operation conditions by a qualified operator.

CONVENTIONS

Forward, backward, front, rear, left or right are intended with
reference to the operator’s position, that is to say on the
driver’s seat with the hands on the handlebar (1, Fig. C).

DESCRIPTION

Control panel
(See Fig. B)

1. Left control panel

2. Ignition switch

3. Discharged battery warning light (red)

4. Semi-discharged battery warning light (yellow)

5. Charged battery warning light (green)

6. Display

7. Display selection push-button: hour counter/hour and
minute counter/battery voltage (V)

8. Horn

9. Switch having the following functions:
– in the central position: off
– pushed forward (fixed): it turns on the main broom

and the vacuum fan

– pushed backward (not fixed): it turns on the filter

shaker

10. Manual vacuum system switch (optional)

11. Working light switch (optional)

12. Emergency push-button

13. Control panel mounting screws

14. Right control panel

15. Steering column inclination adjusting lever

Outside view
(See Fig. C)

1. Steering wheel

2. Control panel

3. Vacuum activation/deactivation lever

4. Side broom lifting/lowering lever

5. Forward/reverse gear pedal

6. Service brake pedal

7. Parking brake lever (it acts on the front wheel)
7a. Brake engaged
7b. Brake disengaged

8. Front skirt lifting pedal

9. Can holder

10. Hood

11. Rear wheels on fixed axle

12. Front driving and steering wheel

13. Right side broom

14. Left side broom

15. Main broom

16. Left side skirt

17. Right side skirt

18. Front skirt

19. Rear skirt

20. Hopper

21. Hopper hook

22. Hopper handle

23. Main broom left door

24. Main broom height left adjusting knob

25. Main broom height right adjusting knob

26. Main broom right door

27. Main broom right door mounting screws

28. Pivoting light (always on when the ignition switch is
turned to "I" position) (optional)

29. Driver's seat with safety microswitch

30. Additional hole for manual vacuum system (optional)

31. Adjustable steering column

32. Working light (optional)

33. Side broom height adjusting knob

34. Seat longitudinal position adjusting lever

35. Manual vacuum system (optional)

36. Side broom height adjusting knob ring nut

USER MANUAL

6 146 1957 000

Under-hood compartment
(See Fig. U)

1. Serial number plate/technical data/EC certification

2. Hood (open)

3. Hood support rod

4. Batteries

5. Battery caps (for WET batteries)

6. Battery connector

7. Electronic battery charger (optional)

8. Battery charger connecting cable

9. Lamellar fuse box (accessories)

10. Drive system circuit breaker

11. Main broom/vacuum fan motor circuit breaker

12. Lead (WET) or gel (GEL) battery selector switch on the
optional electronic battery charger

13. Charged battery warning light (green)

14. Main broom belt

15. Main broom drive pulley

16. Vacuum fan

17. Main motor

18. Manual vacuum system (optional)

19. Switch for machine pushing

20. Battery installation diagrams

TECHNICAL DATA

General Values

Machine length 1,255 mm

Machine width (without side brooms) 795 mm

Machine height 1,155 mm

Working width (with/without side
brooms)

1,000/600 mm

Minimum height from the ground
(skirts not included)

40 mm

Minimum turning radius 983 mm

Main broom size Ø 265 mm x 600 mm

Side broom size Ø 420 mm

Front driving and steering wheel Ø 200 x 50 mm

Rear wheels Ø 250 x 50 mm

Machine weight (without batteries) 143.89 kg

Maximum forward/reverse speed 5.5 km/h / 4.4 km/h

Gradeability 2%

Hopper capacity 40 litres

Main broom and vacuum fan motor 600 W

Side broom motors 60 W

Drive system motor 400 W

Filter shaker motor 12 W

Sound pressure level (A Lpa) 71.6 dB (A)

Batteries Values

Battery voltage 24 V

Standard battery

Lead (WET), with acid

electrolyte

Optional battery Gel (GEL), hermetic

Battery capacity 100 – 240 Ah C5

Battery compartment maximum size 357x375x385 mm

Dust vacuuming and filtering Values

Paper dust filter 5-10 µm 3 m

2

Main broom compartment vacuum 18.3 mm H2O

USER MANUAL

146 1957 000 7

Wiring diagram
(See Fig. V)

BAT: Batteries
BE1: Pivoting light
BZ1: Reverse gear buzzer
C1: Battery connector
CH1: Battery charger
EB1: Hour counter and battery voltage display
EB2: Drive system electronic board
ES0: Starting relay
ES1: Main broom switch
ES2: Filter shaker relay
ES3: Manual vacuum system switch
FA: Main broom/vacuum fan fuse
FL: Drive system electronic board fuse (3 A)
FT: Drive system fuse
F1: Main fuse (ignition switch circuit) (25 A)
F2: Filter shaker motor fuse (25 A)
F3: Manual vacuum system fuse (40 A) (optional)
F4: Horn and pivoting light fuse (10 A) (optional)
F5: Working light fuse (10 A) (optional)
F6: Side broom motor fuse (10 A)
HN1: Horn
K1: Ignition switch
L1: Working light (optional)
M1: Main broom motor
M2: Drive system motor
M3: Filter shaker motor
M4: Right side broom motor
M5: Left side broom motor
M6: Manual vacuum system motor (optional)
P1: Horn switch
R1: Drive speed potentiometer
SWC: Hood safety switch
SWS: Emergency push-button
SW1: Main broom, vacuum fan and filter shaker switch
SW2: Driver's seat safety microswitch
SW3: Forward/reverse gear microswitch
SW4: Side broom microswitch
SW5: Drive system switch
SW6: Manual vacuum system switch (optional)
SW7: Working light switch

Colour code

BK: Black
BU: Blue
BN: Brown
GN: Green
GY: Grey
OG: Orange
PK: Pink
RD: Red
VT: Violet
WH: White
YE: Yellow

Electrical fuses

The following fuses are located under the hood (10, Fig. C):
– Circuit breakers, which can be reset by pressing the

relevant key:
– Drive system fuse (11, Fig. U)
– Main broom/vacuum fan motor fuse (10, Fig. U)

– Lamellar fuses, protected by a transparent plastic cover

(9, Fig. U), which protect the following circuits:
– Fuse F1 (25 A): Main fuse (ignition switch circuit)
– Fuse F2 (25 A): Filter shaker motor
– Fuse F3 (40 A): Manual vacuum system (optional)
– Fuse F4 (10 A): Horn and pivoting light
– Fuse F5 (10 A): Working light (optional)
– Fuse F6 (10 A): Side broom motors
– Fuse F7 (25 A): Spare
– Fuse F8 (10 A): Spare

– On the drive system electronic board there is the

following fuse:
– Drive system electronic board fuse (3 A)

ACCESSORIES/OPTIONS

In addition to the standard components, the machine can be
equipped with the following accessories/options, according to
the machine specific use:
– GEL batteries
– Electronic battery charger
– Main and side brooms with harder or softer bristles
– Antistatic polyester or polyester BIA C dust filter
– Manual vacuum system
– Working light
– Pivoting light
– Skirts of various materials

For further information concerning the optional accessories,
contact an authorised Retailer.

USER MANUAL

8 146 1957 000

USE

While reading this Manual, the operator must pay particular
attention to these symbols.
Do not cover these plates for any reason and immediately
replace them if they are damaged.

BATTERY CHECK/SETTING ON A NEW
MACHINE

The machine requires two 12 V batteries or four 6 V batteries
connected according to the diagrams (20, Fig. U).
The machine can be supplied in one of the following modes:

a. WET or GEL batteries already installed on the

machine

1. Open the machine hood (10, Fig. C) and engage the

hood support rod (3, Fig. U), then check that the
batteries are connected to the machine with the
connector (6, Fig. U).

2. Disengage the support rod and close the hood.

Check that the hood is properly closed (the machine
must be as shown in Fig. C).

3. Insert the key into the ignition switch (2, Fig. B) and

turn it to “II” position (without pressing the pedal (5,
Fig. C)), then release it. If the green warning light (5,
Fig. B) turns on, the batteries are ready to be used.
If the yellow (4, Fig. B) or red (3, Fig. B) warning light
turns on, it is necessary to charge the batteries (see
the relevant procedure in the Maintenance chapter).

b. WET batteries installed on the machine but without

electrolyte

1. Open the machine hood (10, Fig. C) and engage the
hood support rod (3, Fig. U).

2. Remove all battery caps (5, Fig. U).

3. Fill the battery cells (or elements) with sulphuric acid
for batteries (density from 1.27 to 1.29 kg at 25°C) in
accordance with the instructions shown in the
Battery Manual. The correct quantity of sulphuric
acid is shown in the Battery Manual.

4. Let the batteries rest and fill in with sulphuric acid in
accordance with the instructions shown in the
Battery Manual.

5. Charge the batteries (see the procedure in the
Maintenance chapter).

c. Without batteries

1. Buy appropriate batteries (See the Technical Data
chapter and the diagrams (20, Fig. U)). For the
battery choice and installation, apply to qualified
battery Retailers.

2. Install the batteries.

3. Set the machine and the battery charger (if
equipped) according to the type of batteries installed,
according to the procedure shown in the following
paragraph.

WARNING!
On some points of the machine there are some
adhesive plates indicating:
– DANGER
– WARNING
– CAUTION
– NOTE

WARNING!
Pay attention when using sulphuric acid, as it
is corrosive. If it comes in contact with skin or
eyes, rinse thoroughly with water and consult
a physician.
Batteries have to be filled in a well-ventilated
area.
Wear protective gloves.

USER MANUAL

146 1957 000 9

WET OR GEL BATTERY SETTING

According to the type of batteries (WET or GEL), set the
electronic board of the machine and of the battery charger (if
equipped), according to the following procedure:

1. Turn the ignition switch (2, Fig. B) to “0” position.

2. Open the hood (10, Fig. C) and engage the hood support
rod (3, Fig. U).

Machine setting

The machine factory setting is for lead (WET) batteries. If this
setting corresponds to the type of batteries installed on the
machine, go to the next paragraph, otherwise perform the
following procedures:
– Disconnect the battery connector (6, Fig. U).
– Remove the screws (13, Fig. B) and carefully remove

the right control panel (14).

– Install a jumper wire (1, Fig. T) on the GEL connectors

(3) for gel batteries.

– Carefully install the control panel (14, Fig. B) and the

screws.

– Reconnect the battery connector (6, Fig. U).

Battery charger setting

1. Turn the selector switch (12, Fig. U) to WET or GEL
according to the type of batteries.

2. Charge the batteries (see the procedure in the
Maintenance chapter).

BEFORE MACHINE START-UP

MACHINE START AND STOP

Starting the machine

1. Sit on the driver's seat (29, Fig. C) and, if it is necessary
for an easier access to the machine, push the lever (15,
Fig. B) and tilt the steering column (31, Fig. C) forward.

2. Push the lever (15, Fig. B) forward and tilt the steering
column (31, Fig. C) forward or backward, to reach a
comfortable position. Then release the lever (15, Fig. B)
and lock the steering column.

3. Without pressing the drive pedal (5, Fig. C), turn the
ignition switch (2, Fig. B) to “II” position, then release it;
it will go back to “I” position. Check that the green
warning light (5, Fig. B) (charged battery) turns on. If the
yellow or red warning light (3 or 4, Fig. B) turns on, turn
the ignition switch back to “0” position and charge the
batteries (see the procedure in the Maintenance
chapter).

4. Disengage the parking brake according to the following
procedure:
– Press the pedal (6, Fig. C) and turn the lever (7, Fig.

C) from (7a) position to (7b) position.

– Release the pedal (6).

5. Drive the machine to the working area, by keeping the
hands on the steering wheel and pressing the pedal (5,
Fig. C) on the front side to move forward and on the rear
side to move backward. The drive speed can be
adjusted from zero to maximum speed by increasing the
pressure on the pedal (5, Fig. C).

6. Turn on the main broom and the vacuum fan by pressing
the switch (9, Fig. B) forward.

7. Turn on the vacuum system with the lever (3, Fig. C).

8. Lower the side brooms (13 and 14, Fig. C) by lowering
the lever (4).

9. Start sweeping by turning the steering wheel (1, Fig. C)
and move the machine forward by pressing the pedal
(5).

CAUTION!
Make sure that there are no open doors/hoods
and that the machine is in normal operating
conditions.
Make sure that the hopper (20, Fig. C) is
properly closed.
If the machine has not been used after being
transported, check that all the blocks used for
the transportation have been removed.

NOTE
The seat (29, Fig. C) is equipped with a safety
sensor, which allows the machine to be driven
by pressing the pedal (5, Fig. C) only when the
operator is on the driver's seat.

NOTE
The side brooms (13 and 14, Fig. C) can be
lowered and lifted even when the machine is
moving. The side brooms do not rotate when
they are lifted, but they rotate when they are
lowered.

USER MANUAL

10 146 1957 000

Stopping the machine

1. To stop the machine, release the pedal (5, Fig. C). To
stop the machine more quickly, also press the service
brake pedal (6, Fig. C). In case of emergency, press the
emergency push-button (12, Fig. B) to immediately stop
the machine. To deactivate the emergency push-button
(12), turn it clockwise.

2. Lift the side brooms (13 and 14, Fig. C) by using the
lever (4).

3. To turn off the main broom and the vacuum fan, turn the
switch (9, Fig. B) to “0” (central) position.

4. To stop the machine, turn the ignition switch (2, Fig. B)
to “0” position.

5. Engage the parking brake according to the following
procedure:
– Press the pedal (6, Fig. C) as necessary, then

engage the brake by turning the lever (7, Fig. C) from
(7b) position to (7a) position.

– Release the pedal (6).

MACHINE OPERATION

1. Avoid stopping for a long time with the machine in the
same position and the brooms rotating: this could create
unwanted marks on the floor.

2. To collect light and bulky debris, lift the front skirt by
pressing the pedal (8, Fig. C); remember that while the
front skirt is lifted, the machine vacuum power
decreases.

3. For machine proper operation, the dust filter must be as
clean as possible. To keep the dust filter clean while
sweeping, turn off the vacuum system with the lever (3,
Fig. C), then press the switch (9, Fig. B) for a while.
During this procedure the main motor and the vacuum
fan are automatically stopped.
After cleaning the filter, push the switch (9, Fig. B)
forward to turn on the main broom and the vacuum
system, then start sweeping again.
While working, repeat the procedure every 10 minutes
on average (depending on the dustiness of the area to
be cleaned).

4. The hopper (20, Fig. C) should be dumped after each
working period and whenever it is full (see the procedure
in the next paragraph).

HOPPER DUMPING

1. Stop the machine by releasing the drive pedal.

2. Turn the ignition switch (2, Fig. B) to “0” position.

3. Disengage the hook (21, Fig. C) by pulling its lower end.

4. Remove the hopper (20, Fig. C) by using the handle
(22), and dump it into special containers.

5. Reinsert the hopper and fasten it with the hook (21).

6. The machine is ready to start working again.

AFTER MACHINE USE

After working, before leaving the machine:
– Lift the side brooms with the lever (4, Fig. C).
– Turn on the filter shaker with the switch (9, Fig. B).
– Dump the hopper (20, Fig. C) (see the previous

paragraph).

– Remove the key from the ignition switch (2, Fig. B).
– Engage the parking brake according to the following

procedure:
– Press the pedal (6, Fig. C) as necessary, then

engage the brake by turning the lever (7, Fig. C) from
(7b) position to (7a) position.

– Release the pedal (6).

PUSHING/TOWING THE MACHINE

To easily push/tow the machine when it is off, proceed as
follows:
– Open the hood (10, Fig. C).
– Turn the switch (19, Fig. U) to “0” and close the hood (10,

Fig. C).

– Push or tow the machine.
– After pushing/towing the machine, turn the switch (19,

Fig. U) to “I”.

MACHINE LONG INACTIVITY

If the machine is not going to be used for more than 30 days,
proceed as follows:
– Check that the machine storage area is dry and clean.
– Disconnect the battery connector (6, Fig. U).
– Slightly lift the machine so that the skirts, the main broom

and the wheels do not touch the ground.

– If the optional battery charger (7, Fig. U) is installed,

disconnect the positive terminal (+) directly from the
battery (+) pole.

FIRST PERIOD OF USE

After the first period of use (first 8 hours) it is necessary to
carry out the following procedures:

1. Check the machine fastening and connecting parts for
proper tightening.

2. Check the visible parts for integrity and leakage.

WARNING!
Avoid stopping the machine movement by
turning the ignition switch to “0”, and avoid
pressing the emergency push-button, before
the machine has stopped by releasing the
accelerator pedal or by pressing the brake
pedal.

WARNING!
When operating on wet grounds, it is essential
to turn off the vacuum system with the lever (3,
Fig. C) to prevent the dust filter from being
damaged.

NOTE
When the dust filter is clogged and/or the
hopper is full, the machine cannot collect dust
and debris anymore.

USER MANUAL

146 1957 000 11

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 defined by the person in charge of the maintenance.

All scheduled or extraordinary maintenance procedures must be performed by qualified personnel, or by an authorised Service
Center.
This Manual describes only the easiest and most common maintenance procedures.

SCHEDULED MAINTENANCE TABLE

(*): For the relevant procedure, see the Service Manual.
(1): And after the first 8 running-in hours.

WARNING!
To carry out maintenance procedures, switch off the machine (remove the key from the ignition switch) and,
if necessary, disconnect the batteries.
Moreover, carefully read the instructions in the Safety paragraph.

NOTE
For other maintenance procedures contained in the Scheduled Maintenance Table, refer to the Service
Manual that can be consulted at any Service Center.

Procedure On delivery

Every 10

hours

Every 50

hours

Every 100

hours

Every 200

hours

Every 400

hours

Battery fluid level check

Side and main broom height check and
adjustment

Dust filter cleaning and integrity check

Skirt height and operation check

Filter shaker operation check (*)

Hood safety switch operation check (*)

Main broom drive belt visual inspection (*)

Nut and screw tightening check (*) (1)

Service and parking brake check and
adjustment

(*)

Main broom drive belt replacement (*)

Main motor and drive system motor carbon
brush check and replacement

(*)

USER MANUAL

12 146 1957 000

MAIN BROOM HEIGHT CHECK AND
ADJUSTMENT

1. Check that the main broom is at the correct height from
the ground, according to the following procedure:
– Drive the machine on a level ground.
– Keep the machine stationary and rotate the main

broom for a few seconds.

– Stop and lift the main broom, then move the

machine.

– Check that the main broom print (1, Fig. D), along its

length, is 2 to 4 cm wide.
If the print (1) is not within specifications, it is
necessary to adjust the broom height, according to
the procedure shown in step 2.

2. Drive the machine on a level ground and engage the
parking brake (6 and 7, Fig. C).

3. Turn the ignition switch (2, Fig. B) to “0” position.

4. Loosen the knobs (1, Fig. E) on both sides of the
machine.

5. Operating on the knobs (1, fig. E) move, on both sides of
the machine, the broom height variation indicator (2) as
necessary and then screw down the knobs (1).
The indicator (2) must be in the same position on both
sides of the machine; the maximum difference allowed
to obtain the print (1, Fig. D) described in step 1 (2 - 4 cm
wide) is 2 notches.

6. Perform step 1 again to check that the main broom is at
the correct height from the ground.

7. When the broom is too worn and can no longer be
adjusted, replace it according to the instructions in the
following paragraph.

MAIN BROOM REPLACEMENT

1. Drive the machine on a level ground and engage the
parking brake (6 and 7, Fig. C).

2. Turn the ignition switch (2, Fig. B) to “0” position.

3. Loosen the knobs (1, Fig. E) on both sides of the
machine.

4. Move the broom height variation indicators (2, Fig. E)
until the broom is at the maximum distance from the
ground. Screw down the knobs (1).

5. On the left side of the machine, loosen the knob (3, Fig.
E).

6. Remove the broom door (1, Fig. F) by pulling it upwards
to disengage the retainers (2).

7. Remove the broom (1, Fig. G).

8. The new broom must be installed with the bristles rows
bent as shown in the figure H (top view).

9. Install the new broom on the machine and ensure that its
mesh (1, Fig. I) correctly fits into the relevant drive hub
(4, Fig. R). Check that the drive hub is free from dirt or
foreign materials (cords, rags, etc.) accidentally rolled
up.

10. Install the broom door (1, Fig. F) by engaging the
retainers (2).

11. Screw down the knob (3, Fig. E).

12. Carry out the main broom height check and adjustment,
as shown in the previous paragraph.

NOTE
Brooms of various hardness are available. This
procedure is applicable to all types of brooms.

CAUTION!
An excessive print (larger than 4 cm) of the
main broom can lead to the machine
malfunction and the overheating of the moving
parts, thus reducing machine life.
Pay careful attention when performing the
above-mentioned checks, and always use the
machine according to the indicated conditions.

NOTE
Brooms of various hardness are available. This
procedure is applicable to all types of brooms.

CAUTION!
It is advisable to use protective gloves when
replacing the side brooms because there can
be sharp debris between the bristles.

USER MANUAL

146 1957 000 13

SIDE BROOM HEIGHT CHECK AND
ADJUSTMENT

1. Check the side broom height from the ground, according
to the following procedure:
– Drive the machine on a level ground and lower the

side brooms.

– Keep the machine stationary, lower the side brooms

and rotate them for a few seconds;

– Stop and lift the side brooms, then move the machine

and switch it off.

– Check if the size and orientation of the prints left by

the side brooms are as shown in the figure (1 and 2,
Fig. J).

If the print (1) is not within specifications, it is
necessary to adjust the broom height, according to
the procedure shown in step 2.

2. Unlock the ring nut (36, Fig, C) by turning it
counterclockwise, then turn the knob (33) as necessary,
clockwise or counterclockwise, to adjust the broom
height; then lock the knob (33) with the ring nut (36).

3. Perform step 1 again to check the proper adjustment of
the side broom height from the ground.

4. When the brooms are too worn to be adjusted, replace
them as shown in the next paragraph.

SIDE BROOM REPLACEMENT

1. Drive the machine on a level ground and engage the
parking brake (6 and 7, Fig. C).

2. Turn the ignition switch (2, Fig. B) to “0” position.

3. Introduce the hand inside the side broom and press the
tabs (1, Fig. K) inwards, then remove the broom (2)
disengaging it from the four pins (3).

4. Install the new broom on the machine engaging it on the
pins (3) and on the tabs (1).

5. Carry out the side broom height check and adjustment,
as shown in the previous paragraph.

CLOSED POCKET FILTER CLEANING AND
INTEGRITY CHECK

1. Drive the machine on a level ground and engage the
parking brake (6 and 7, Fig. C).

2. Turn the ignition switch (2, Fig. B) to “0” position.

3. Remove the hopper hook (21, Fig. C).

4. Remove the hopper (20, Fig. C) by using the handle
(22).

5. Turn the handle (1, Fig. L) downwards (90°
approximately) and let the filter frame (2) rotate
outwards.

6. Remove the dust filter (3).

7. In an appropriate outdoor area, clean the filter by
shaking it on a level and clean surface, tapping the side
(1, Fig. M) opposite to the wire gauze (2). Complete the
cleaning by using compressed air (3) at maximum 6
bars, blowing only from the side protected by the wire
gauze (2), at a minimum distance of 30 cm.

According to the filter type, observe the following
cautions:

– Paper filter (standard): Do not use water or

detergents to clean it; the filter can be damaged.

– Polyester filter (optional): To clean it, see the

above-mentioned instructions. If necessary, for a
better cleaning, it is allowed to wash the filter with
water and non-lathering detergents. This provides
better quality cleaning but reduces the life of the
filter, which will have to be replaced more frequently.
The use of inadequate detergents can damage the
filter.

8. Check the filter body for tears.

9. If necessary, clean the filter compartment rubber seal (4,
Fig. L) along its perimeter and check it for integrity. If
necessary, replace it.

10. Assemble in the reverse order of disassembly.

NOTE
Brooms of various hardness are available. This
procedure is applicable to all types of brooms.

NOTE
Brooms of various hardness are available. This
procedure is applicable to all types of brooms.

CAUTION!
It is advisable to use protective gloves when
replacing the side brooms because there can
be sharp debris between the bristles.

NOTE
Besides the standard paper filter, polyester
filters are also available. The following
procedure is applicable to each type of filter.

NOTE
Assemble the filter with the wire gauze (2, Fig.
M) facing the vacuum fan (16, Fig. U).

USER MANUAL

14 146 1957 000

SKIRT HEIGHT AND OPERATION CHECK

1. Drive the machine on a level ground that is suitable for
checking the skirt height. Engage the parking brake (6
and 7, Fig. C).

2. Turn the ignition switch (2, Fig. B) to “0” position.

Side skirt check

1. Check the side skirts (16 and 17, Fig. C) for integrity.
Replace the skirts when they have cuts (1, Fig. N) larger
than 20 mm or cracks (2) larger than 10 mm (for skirt
replacement, refer to the Service Manual).

2. Check that the side skirt (16 and 17, Fig. C) height from
the ground is within 0 – 3 mm (Fig. O). If necessary,
adjust the skirt height, according to the following
procedure:

Left skirt:

– Open the hood (10, Fig. C) and engage the hood

support rod (3, Fig. U).

– Loosen the knob (3, Fig. E) and remove the broom

left door (1, Fig. F), pulling it upwards to disengage
the retainers (2).

– Adjust the skirt (3, Fig. F) height by using the slots

(4).

– Assemble in the reverse order of disassembly.

Right skirt:

– Remove the main broom, as shown in the relevant

paragraph.

– Remove the belt (14, Fig. U) from the pulley (15); for

a easier removal, turn the pulley (15) by operating on
the vacuum fan (16) manually.

– Remove the screws (27, Fig. C) and the right door

(26) together with the belt (14, Fig. U). Adjust the
skirt (1, Fig. S) height by using the slots (2).

– Assemble in the reverse order of disassembly.

Front and rear skirt check

1. Remove the main broom, as shown in the relevant
paragraph.

2. Check the front (1, Fig. R) and rear (2) skirts for integrity.

3. Replace the skirts when they have cuts (1, Fig. N) larger
than 20 mm or cracks (2) larger than 10 mm (for skirt
replacement, refer to the Service Manual).

4. Check that:
– The front skirt (1, Fig. R) slightly touches the ground

and that it is not detached from the ground (1, Fig. P).

– The rear skirt (2, Fig. R) height from ground is within

0 - 3 mm (1, Fig. O).

5. If necessary, adjust the skirt height by using the slots (3,
Fig. R).

6. Press the front skirt lifting pedal (8, Fig. C) and check
that the front skirt (1, Fig. Q) rotates upward of about 90°
(as shown in figure); release the pedal and check that
the skirt does not remain in an intermediate position but
returns to its initial position. If necessary, for the front
skirt control cable adjustment or replacement, refer to
the Service Manual.

7. Assemble in the reverse order of disassembly.

HOOD SAFETY SWITCH OPERATION CHECK

With the vacuum fan turned on, slightly open the hood (10,
Fig. C) and check that the fan immediately turns off.
If opening the hood (10) does not cause the vacuum fan to
turn off, contact an authorised Service Center or Retailer.

CHARGING THE BATTERIES

WARNING!
Battery charging produces highly explosive
hydrogen gas. Charge the batteries in
well-ventilated areas and away from naked
flames. Do not smoke while charging the
batteries. While charging the batteries always
keep the hood open.

WARNING!
Pay careful attention when charging the
batteries as there may be battery fluid
leakages. The battery fluid is corrosive. If it
comes in contact with skin or eyes, rinse
thoroughly with water and consult a physician.

USER MANUAL

146 1957 000 15

1. Drive the machine on a level ground and engage the
parking brake (6 and 7, Fig. C).

2. Turn the ignition switch (2, Fig. B) to “0” position.

3. Open the hood (10, Fig. C) and engage the hood support
rod (3, Fig. U).

4. (For WET batteries only) check the level of electrolyte
inside the batteries. If necessary, top up through the
caps (5, Fig. U).
Leave all the caps (5) open for battery charging.
If necessary, clean the upper surface of the batteries.

5. Charge the batteries according to one of the following
methods, depending on the presence of the electronic
battery charger (7, Fig. U) (optional).

Charging the batteries with an external battery
charger

1. Check that the battery charger is suitable by referring to
the Battery Charger Manual.
– The battery charger voltage rating is 24 V.

2. Disconnect the battery connector (6, Fig. U) 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 (6, Fig.
U).

5. (For WET batteries only) check the level of electrolyte
inside the batteries and close all the caps (5).

6. Reconnect the battery connector (6, Fig. U) to the
machine connector.

7. Disengage the hood support rod (3, Fig. U) and close the
hood (2); the machine is ready to be used.

Charging the batteries with the battery charger
(optional)

1. (For WET batteries only) check the level of electrolyte
inside the batteries. If necessary, top up through the
caps (5, Fig. U). Leave all the caps (5) open for battery
charging. When the correct level is reached, clean, if
necessary, the upper surface of the batteries.

2. Connect the battery charger cable (8, Fig. U) to the
electrical mains.

3. When the green warning light (13, Fig. U) turns on, the
batteries are charged.

4. For further information about the battery charger
operation (7, Fig. U), see the Battery Charger Manual.

5. Disconnect the battery charger connector (8, Fig. U)
from the electrical mains and place it in its special
housing.

6. (For WET batteries only) Close all the caps (5, Fig. U).

7. Disengage the hood support rod (3, Fig. U) and close the
hood (2); the machine is ready to be used.

CAUTION!
Use a battery charger suitable for the type of
batteries installed.

WARNING!
Check that the voltage and frequency shown
on the machine serial number plate (1, Fig. U)
correspond to the electrical mains values.

NOTE
When the battery charger is connected to the
electrical mains, all machine functions are
automatically cut off.

USER MANUAL

16 146 1957 000

SAFETY FUNCTIONS

The machine is equipped with the following safety functions.

EMERGENCY PUSH-BUTTON

It is located in an easily accessible position (12, Fig. B). It has
to be pressed in case of emergency, to stop all the machine
functions.
To reset it, turn it clockwise.

HOOD SAFETY SWITCH

It activates when the machine hood is opened: It stops all
functions.
If the machine keeps operating when the hood is open,
contact an authorised Service Center or Retailer immediately.

DRIVER'S SEAT MICROSWITCH

It is located inside the driver's seat and it does not allow the
machine drive system to operate if the operator is not seated
on the driver's seat.

TROUBLESHOOTING

For further information, refer to the Service Manual, available
at any Nilfisk-Advance Service Center.

SCRAPPING

Have the machine scrapped by a qualified scrapper.
Before scrapping the machine, remove the following
materials, which must be disposed of properly according to
the law in force.
– Batteries
– Polyester dust filter
– Main and side brooms
– Electrical and electronic components (*)
– Plastic components and hoses

(*) Refer to the nearest Nilfisk-Advance Center especially

when scrapping electrical and electronic components.

Trouble Remedy

The machine does not
start when turning the
ignition switch to “I”
position.

Check the battery connector (6, Fig. U) for
proper connection.

Check that the hood (10, Fig. C) is closed.

Check the fuse F1 in the box (9, Fig. U) for
integrity.

Check that the optional battery charger (7,
Fig. U) is disconnected from the electrical
mains.

The machine does not
move by pressing the
pedal (5, Fig. C).

Check that the parking brake (6 and 7, Fig.
C) has been released.

Check that the switch (19, Fig. U) is in “I”
position.

Check that the drive pedal (5, Fig. C) is not
pressed while starting the machine with the
ignition switch (2, Fig. B), or while the
operator is sitting on the driver's seat. The
drive pedal (5, Fig. C) has to be pressed
only after the operator has sit on the
driver's seat and the machine has been
started.

The side brooms do
not operate.

Check the fuse F6 in the box (9, Fig. U) for
integrity.

The machine operates
only when stationary,
otherwise it switches
off and the red warning
light (3, Fig. B) flashes.

Charge the batteries. If the trouble
persists, replace the batteries.

Battery autonomy is
low.

Install batteries having higher capacity
(minimum 100 Ah C5).

NOTE
If the machine has been supplied with the
optional battery charger, the machine cannot
operate if the charger is not on board. In case
of battery charger malfunction, contact an
authorised Service Center.