Nilfisk-Advance ATTIX 751-0H EU User manual

ATTIX 751 M/H
ATTIX 761 M/H
Instructions for use
107413880 F (03. 2022)
auto
auto
WARNUNG: Dieses Gerät enthält gesundheitsgefährliche
Stäube. Entleerung und Wartung einschließlich Entfernung
des Staubbeutels dürfen nur von sachkundigen Personen
vorgenommen werden, die geeignete persönliche Schu tz-
ausrüstung tragen. Nicht einschalten bevor das komplette
Filtersystem installiert und die Funktion der Volumenstrom-
kontrolle überprüft worden ist.

Operating instructions ....................................................................................................................... 1
Bedienungsanweisungen ..................................................................................................................18
Instructions de fonctionnement ........................................................................................................36
Gebruiksaanwijzingen ........................................................................................................................54
Istruzioni per l’uso ..............................................................................................................................71
Bruksanvisning ...................................................................................................................................88
Bruksanvisning .................................................................................................................................105
Betjeningsvejledning .......................................................................................................................122
Käyttöohje .........................................................................................................................................139
Instruccciones de funcionamiento .................................................................................................155
Instruções de Funcionamento ........................................................................................................173
Οδηγίες λειτουργίες .........................................................................................................................191
Kullanma Talimatları.........................................................................................................................209
Navodila za delovanje ......................................................................................................................228
Upute za uporabu .............................................................................................................................246
Návod na obsluhu ............................................................................................................................264
Návod k obsluze ...............................................................................................................................282
Instrukcje dotyczące obsługi ..........................................................................................................300
Használati útmutató .........................................................................................................................318
Руководство по эксплуатации ......................................................................................................336

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4
auto
auto
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8

1)OEL=Occupational Exposure Limit, *) Optional accessories / Option depending on model
Original instruction
1
1IMPORTANT SAFETY INSTRUCTIONS
1.1 Symbols used to mark instructions
DANGER
Danger that leads directly to serious or irreversible injuries, or
even death.
WARNING
Danger that can lead to serious injuries or even death.
CAUTION
Danger that can lead to minor injuries and damage.
Before starting up your machine for the first time, this instruction manual must be read through
carefully. Save the instructions for later use.
1.2 Instructions for use
Besides the operating instructions and the binding accident prevention regulations valid in the country
of use, observe recognised regulations for safety and proper use.
1.3 Purpose and intended use
This machine is designed for industrial use, such as e.g. plants, construction sites and workshops.
This machine is also intended for commercial use, for example in hotels, schools, hospitals, factories,
shops, offices and rental businesses. Accidents due to misuse can only be prevented by those using
the machine.
Any other use is considered as improper use. The manufacturer accepts no liability for any damage
resulting from such use. The risk for such use is borne solely by the user. Proper use also includes
proper operation, servicing and repairs as specified by the manufacturer.
The air flow in Safety Vacuum systems has to be strictly controlled to achieve a minumum flow rate of
Vmin = 20 m/s in the suction hose.
READ AND FOLLOW ALL SAFETY INSTRUCTIONS.
For Dust Class H machines (with type designation -0H, -2H) following applies:
The appliance is suitable for picking up dry, nonflammable dust, non flammable liquids, hazardous
dusts with OEL1) values, carcinogenic dusts, dusts containing germs.
Dust Class H machines (with type designation -0H PC) are also approved for asbestos abatement
according to TRGS 519.
WARNUNG: Dieses Gerät enthält gesundheitsgefährliche
Stäube. Entleerung und Wartung einschließlich Entfernung
des Staubbeutels dürfen nur von sachkundigen Personen
vorgenommen werden, die geeignete persönliche Schu tz-
ausrüstung tragen. Nicht einschalten bevor das komplette
Filtersystem installiert und die Funktion der Volumenstrom-
kontrolle überprüft worden ist.
Dust Class H (IEC 60335-2-69). The dusts which belong to this class are: dusts with
OEL values1), all carcinogenic dusts and dusts which are mixed with pathogenic
agents. Vacuums for Dust Class H are tested in their entirety and have a maximum
degree of permeability of 0.005%. The disposal must be dust free.
The safety label on the machine warns:
This appliance contains dust hazardous to health. Emptying and maintenance operations, including
removal of the dust collecting means, must only be carried out by authorised personnel wearing suit-
able personal protection. Operate only after the full filtration system has been fitted and checked.
For dust extractors, ensure adquate air change rate L, when the exhaust air is returned to the room.
Observe national regulations before use.
For Dust Class M machines (with type designation -2M) following applies:
The appliance is suitable for picking up dry, nonflammable dust, non flammable liquids, sawdust and

21)OEL=Occupational Exposure Limit, *) Optional accessories / Option depending on model
Original instruction
hazardous dusts with OEL1) values > 0.1 mg/m³
Dust Class M (IEC 60335-2-69). The dusts which belong to this class are: dusts with
OEL values1) > 0.1 mg/m³ as well as saw dust. The machine is tested in its entirety by
vacuums for this dust class. The maximum degree of permeability is 0.1% and the dis-
posal must be low dust.
For dust extractors, ensure adquate air change rate L, when the exhaust air is returned to the room.
Observe national regulations before use.
1.4 Important warnings
WARNING
• To reduce the risk of fire, electric shock, or injury, please read and
follow all safety instructions and caution markings before use. This
vacuum cleaner is designed to be safe when used for cleaning
functions as specified. Should damage occur to electrical or me-
chanical parts, the cleaner and / or accessory should be repaired
by a competent service station or the manufacturer before use in
order to avoid further damage to the machine or physical injury to
the user.
• Children shall be supervised to make sure that they do not play
with the appliance.
• Cleaning and user maintenance shall not be made by children with-
out supervision.
• This appliance is not intended for use by persons (including chil-
dren) with reduced physical, sensory or mental capabilities, or lack
of experience and knowledge.
• Outdoor use of the appliance shall be limited to occasional use.
• This machine shall only be stored indoors.
• Do not leave the machine when it is plugged in. Unplug from the
socket when not in use and before maintenance.
• Do not use with damaged cord or plug. To unplug grasp the plug,
not the cord. Do not handle plug or cleaner with wet hands. Turn off
all controls before unplugging.
• Do not pull or carry by cord, use cord as a handle, close a door on
cord, or pull cord around sharp edges or corners. Do not run clean-
er over cord. Keep cord away from heated surfaces.
• Keep hair, loose clothing, fingers and all parts of the body away
from openings and moving parts. Do not put any objects into open-
ings or use with opening blocked. Keep openings free of dust, lint,
hair, and anything else that could reduce the flow of air.
• Do not use in outside areas at low temperature.
• Do not use to pick up flammable or combustible liquids such as

1)OEL=Occupational Exposure Limit, *) Optional accessories / Option depending on model
Original instruction
3
gasoline, or use in areas where they may be present.
• Do not pick up anything that is burning or smoking, such as ciga-
rettes, matches or hot ashes.
• Use extra care when cleaning on stairs.
• Do not use unless filters are fitted.
• If the cleaner is not working properly or has been dropped, dam-
aged, left outdoors, or dropped into water, return it to a service
center or dealer.
• Operators shall be adequately instructed on the use of these ma-
chines.
• The machine may not be used as a water pump. The machine is in-
tended for vacuuming air and water mixture.
• Connect the machine to a properly earthed mains supply. The
socket outlet and the extension cable must have an operative pro-
tective conductor.
• Provide for good ventilation at the working place.
• Do not use the machine as a ladder or sted ladder. The machine
can tip over and become damaged. Danger of injury.
• Only use the socket outlet on the machine for purposes specified in
the Instructions.
• If foam or liquid escapes from the machine, switch off immediately.
1.5 Double-insulated appliances*)
CAUTION
• Use only as described in this manual and only with the manufactur-
er’s recommended attachments.
• BEFORE YOU PLUG IN YOUR CLEANER, check the rating plate
at the cleaner to see if the rated voltage agrees within 10% of the
voltage available.
• This appliance is provided with double insulation. Use only identical
replacement parts. See instructions for servicing double insulated
appliances.
• Clean the water level limiting device regularly and examine it for
signs of damage.
In a double-insulated appliance, two systems of insulation are provided instead of grounding. No
grounding means is provided on a double-insulated appliance, nor should a mean for grounding be
added to the appliance. Servicing a double-insulated appliance requires extreme care and knowl-
edge of the system, and should be done only by qualified service personnel. Replacement parts for a
double-insulated appliance must be identical to the parts they replace. A double insulated appliance
is marked with the words “DOUBLE INSULATION” or “DOUBLE INSULATED.” The symbol (square
within a square) may also be used on the product.

41)OEL=Occupational Exposure Limit, *) Optional accessories / Option depending on model
Original instruction
The machine is equipped with a specially designed cord which if damaged, must be replaced by a
cord of the same type. This is available at authorised service centres and dealers and must be in-
stalled by trained personnel.
Only applicable to UK.
Please read these essential instructions
These instructions have been prepared with safety and efficiency paramount.
The machine operator must be trained by a suitably qualified instructor and must understand these
instructions for use, and be made aware of any relevant regulations and legislation in force at the
time of use.
CAUTION
DOUBLE-INSULATED MACHINES - IMPORTANT:
This 240 volt 50 Hz. machine is fitted with a 13 amp. 3 pin moulded
plug. The plug is fitted with a 13 amp. detachable fuse. The correct re-
placement for the fuse is identified by marking or colour coding. Only
fuses that are ASTA approved to BS 1362 should be fitted. Never use
the plug without the fuse cover fitted. Replacement fuse covers are
available at any electrical retail outlet.
If the available socket outlet is not suitable for the plug supplied, the plug must be cut off and an ap-
propriate plug fitted. The plug thus cut off MUST BE DESTROYED for safety reasons before being
disposed of.
Machines built for other voltages and frequencies are not normally supplied with a fitted plug.
If it is necessary to fit a plug, the wires in this power supply cord are coloured in accordance with the
following code:
Blue-neutral brown-live
TO CONNECT THE NEW PLUG:
If using a three-pin plug, do not make any connection to the the terminal in the
plug which is marked with the letter ‘E’ or by the safety earth symbol or coloured
green or green & yellow.
The blue wire must be connected to the terminal in the plug which is marked with
the letter ‘N’ or is coloured black or blue.
The brown wire which must be connected to the terminal in the plug which is
marked with the letter ‘L’ or is coloured red or brown.
If the plug to be fitted does not conform to the above notation then consult a qualified electrician.
1.6 Electrical connection
WARNING
• The upper section of the machine contains live components. Con-
tact with live components leads to serious or even fatal injuries.
Never spray water on to the upper section of the machine.
• The vacuum cleaner must not be used if the electrical cable or plug
show any sign of damage. Regularly inspect the cable and the plug
for damage. If this becomes damaged, it should be repaired only
by Nilfisk or an authorised Nilfisk Service Dealer, in order to avoid a
hazard.
• Do not handle the electrical cable or plug with wet hands.

1)OEL=Occupational Exposure Limit, *) Optional accessories / Option depending on model
Original instruction
5
• Do not unplug by pulling on cable. To unplug, grasp the plug, not
the cable. The plug must always be removed from the socket outlet
before starting any service or repair work of the machine or the ca-
ble.
• In no circumstances should the power supply cord be wrapped
around fingers or any part of the operators person.
• It is recommended that the machine should be connected via a residual current circuit breaker.
• Arrange the electrical parts (sockets, plugs and couplings) and lay down the extension lead so
that the protection class is maintained.
• Connectors and couplings of power supply cords and extension leads must be watertight.
Extension lead
• As an extension lead, only use the version specified by the manufacturer or one of a higher quali-
ty.
• When using an extension lead, check the minimum cross-sections of the cable:
Cable lenth Cross section
< 16 A < 25 A
up to 20 m 1.5 mm22.5 mm2
20 to 50 m 2.5 mm24.0 mm2
1.7 Hazardous materials
WARNING
Vacuuming up hazardous materials can lead to serious or even fatal in-
juries.
The following materials must not be picked up by the machine:
• hot materials (burning cigarettes, hot ash, etc.)
• flammable, explosive, aggressive liquids (e.g. petrol, solvents, ac-
ids, alkalis, etc.)
• flammable, explosive dust (e.g. magnesium or aluminium dust,
etc.)
Using the appliance for asbestos abatement work according to German
regulation TRGS 519. To pick up materials containing asbestos:
• Dust Class H machines (with type designation -0H PC) can be
used for picking up asbestos.
• Use a suction hose with a maximum diameter of 36 mm.
Use the closable plastic sack to ensure dust-free transport of the appli-
ance and contaminated parts (hose, hand pipe, nozzles, etc.). Once the
asbestos appliance has been used in an exclusion area as defined in
TRGS 519, it should no longer be used in so-called “white” areas. Ex-
ceptions are only permitted if the asbestos cleaner has previously been
completely decontaminated by a specialist as specified in TRGS 519

61)OEL=Occupational Exposure Limit, *) Optional accessories / Option depending on model
Original instruction
No. 2.7 (e.g. not only the outer case but also, for example, the cooling
air rooms, the installation rooms for electrical supplies, the supplies
themselves, etc.). A written report must be made by a specialist and
signed by him.
When picking up materials containing asbestos the exhaust air must
not be returned into the room. Use the exhaust air socket and a hose
with a length of maximum 4 m and a nominal diameter of minimum
50 mm.
1.8 Maintenance
Remove the plug from the socket before performing maintenance. Before using the machine make
sure that the frequency and voltage shown on the rating plate correspond with the mains voltage.
The machine is designed for continuous heavy work. Depending on the number of running hours –
the dust filter should be renewed. Keep the machine clean with a dry cloth, and a small amount of
spray polish.
During maintenance and cleaning, handle the machine in such a manner that there is no danger for
maintenance staff or other persons.
In the maintenance area
• Use filtered compulsory ventilation
• Wear protective clothing
• Clean the maintenance area so that no harmful substances get into the surroundings.
1.9 Regular servicing and inspection
Regular servicing and inspection of your machine must be carried out by suitably qualified personnel
in accordance with relevant legislation and regulations. In particular, electrical tests for earth continui-
ty, insulation resistance, and condition of the flexible cord should be checked frequently.
In the event of any defect, the machine MUST be withdrawn from service, completely checked and
repaired by an authorized service technician.
At least once a year, a Nilfisk technician or an instructed person must perform a technical inspection
including filters, air tightness and control mechanisms.
Appliances in Dust Class H must have their filtration efficiency checked once a year. The result must
be presented upon request. If the effiency of the filter does not fulfil the requirements for Dust Class
H, the filter must be replaced.
For details of after sales service contact your dealer or Nilfisk service representative responsible for
your country. See reverse of this document.
2.0 Warranty
Our general conditions of business are applicable with regard to the guarantee.
Unauthorised modifications to the appliance, the use of incorrect brushes in addition to using the ap-
pliance in a way other than for the intended purpose exempt the manufacturer from any liability for
the resulting damage.
Equipment marked with the crossed-out wheeled bin symbol indicates that used electrical
and electronic equipment should not be discarded together with unseparated household
waste. To avoid negative effects on human health and the environment the equipment must
be collected separately at the designated collection points.
Users of electrical and electronic household equipment must use the municipal collection schemes.
Please note that commercially used electrical and electronic equipment, shall not be disposed of via
municipal collection schemes. We will be pleased to inform you about suitable disposal options.

7
*)Option depending on model
Original instruction
2 Description
2.1 Operating elements 1 Handle
2 Suction pipe support
3 Accessory holder
4 Applicance switch with suc-
tion power control*)
5 Retaining clamp
6 Dirt tank
7 Inlet fitting
8 Appliance socket*)
9 Cable hook
10 Tank locks
11 Castor with brake
12 Hose diameter setting*)
3 Before start-up
3.1 Assembling the cleaner
CAUTION!
1. Open the retaining clamps
and lift off the upper section
of the cleaner.
2. Take the accessories out of
the dirt tank and the packag-
ing.
3. To pick up dust with maxi-
mum room concentration
values:
Insert the filter bag into the
dirt tank according to the
instructions (instructions in-
cluded).
To pick up harmless dust:
Insert the disposal bag (in-
structions included) into the
tank.
IMPORTANT: Press the filter
bag connection firmly on to
the inlet fitting.
4. Fit the upper section of the
vacuum cleaner and close
the retaining clamps.
NOTE: Ensure that the re-
taining clamps fit properly.
On delivery some of the accesso-
ries are lying in the tank and must
be removed before the vacuum
cleaner is used for the first time.
Remove the upper section of the
vacuum cleaner:
The mains plug should not be in-
serted into a socket.

8*)Option depending on model
Original instruction
4 Operation
4.1 Connections
4.1.1 Connecting the suction
hose
1. Connect the suction hose.
ATTIX 751-2M, ATTIX 761-2MXC,
ATTIX 761-2HXC:
The suction hose diameter must
suit the position of the switch in
order to pick up dry, nonflam-
mable dust with maximum room
concentration values.
CAUTION!
To pick up materials containing as-
bestos:
Use only the vacuum cleaner ATTIX
751-0H with a suction hose with a
diameter of 36 mm.
4.1.2 Electrical connection The operating voltage shown on the
rating plate must correspond to the
voltage of the mains power supply.
1. Ensure that the vacuum
cleaner is switched off.
2. Insert the power cord into a
properly installed and fused
socket with an earthing con-
tact.
4.2 Switching on the
vacuum cleaner
4.2.1 Switch position “I”
1. Turn the switch to position
„I“.
The vacuum cleaner motor
starts.
4.1.3 Connecting electrical
appliances*)
1. Ensure that the electrical
appliance is switched off.
2. Connect the electrical appli-
ance to the appliance socket
on the control panel.
To comply with regulations, only ap-
proved dust producing tools should
be connected.
The maximum power consumption
of the connected power tool is stat-
ed in section 9.1 “Technical data”.
The hose diameter and the setting
for the suction hose diameter must
be the same.
Hose
ø
Hose diameter
setting
ø27 ø27
ø32 ø32
ø36 ø36
ø38 ø38
ø50 ø50
0
0
0
0
0
3
3
8
5
2
2
7
0
3
6

9
*)Option depending on model
Original instruction
4.2.2 Switch position „auto“*)Before switching the switch to position
„auto“, ensure that the tool connected
to the appliance socket is switched off.
1. Turn the switch to position
„auto“. The vacuum cleaner mo-
tor starts when the connected
appliance is switched on.
2. When the power tool is switched
off the vacuum cleaner contin-
ues to run for a short moment so
that any dust in the suction hose
is conveyed to the safety filter
bag.
0
0
0
0
0
3
3
8
5
2
2
7
0
3
6
The hose diameter and the setting
for the suction hose diameter must
be the same.
Hose
ø
Hose diameter
setting
ø27 ø27
ø32 ø32
ø36 ø36
ø38 ø38
ø50 ø50
4.2.3 Suction power control*)The motor speed and the suc-
tion power can be varied with
the suction power control. This
allows precise adaptation of
the suction power for different
cleaning tasks.
0
0
0
0
0
3
3
8
5
2
2
7
0
3
6
4.3 Check volume flow
monitor
Before picking up dust with maxi-
mum room concentration values:
1. Check that all the filters are
present and properly fitted.
2. When the motor is running,
hold the suction hose shut.
An acoustic warning sounds
after approx. 1 second.
CAUTION:
To pick up asbestos or material containing asbestos:
1. Use ATTIX 751-0H only.
2. Use a suction hose with a diameter of 36 mm.
3. Use switch position “I”.
4.4 Acoustic warning For safety reasons, an acoustic
warning sounds if the air speed
in the suction hose drops to be-
low 20 m/s. See section “Trou-
bleshooting”.

10 *)Option depending on model
Original instruction
To ensure that suction performance
is always at its best, the filter ele-
ment is automatically cleaned dur-
ing operation. We recommend com-
plete cleaning if the filter element
becomes extremely dirty.
NOTE:
If the acoustic signal sounds again
after repeated cleaning, replace the
filter element (see section 7.2.4).
Only after picking up harmless dust
using the waste bag.
1. Switch off the vacuum clean-
er
2. Close the nozzles or suction
hose opening with the palm
of your hand.
4.5 Cleaning the filter
element
(ATTIX 761-2MXC /
ATTIX 761-2HXC only)
3. Turn the switch to position „I“
and let the cleaner operate
for approx. 10 seconds with
the suction hose opening
closed.
10 sec .
5 Applications and techniques
5.1 Techniques If used correctly, additional ac-
cessories, suction nozzles and
suction hoses can enhance the
cleaning action and reduce the
cleaning effort.
Effective cleaning is achieved if
you follow just a few guidelines in
combination with your own prac-
tical experience in special fields.
Here are some basic tips.
5.1.1 Picking up dry
substances
CAUTION:
Do not pick up flammable
substances.
The suction hose diameter must
suit the position of the switch in
order to pick up dry, nonflam-
mable dust with maximum room
concentration values.
There must always be a safety
filter bag in the tank before dry
substances with maximum room
concentration values are picked
up. See section 9.2 “Accesso-
ries” for ordering number.
To pick up harmless dust we
recommend the use of a waste
bag. See section 9.2 “Accesso-
ries” for ordering number. Dis-
posal of the picked up material
is then simple and hygienic.
After picking up liquids, the filter
element is wet. A damp filter el-
ement clogs more quickly when
dry substances are picked up.
For this reason the filter element
should be washed and dried or
replaced by a dry element be-
fore dry substances are picked
up.
Always use a filter bag/waste
bag that is suitable for the type
of dust.

11
*)Option depending on model
Original instruction
6 After finishing work
6.1 Switching the vacuum
cleaner off and storage
1. After picking up hazardous
dust, vacuum clean the out-
side of the cleaner.
2. Switch off the vacuum clean-
er and pull the mains plug
out of the socket.
3. Remove the suction hose
from the vacuum cleaner and
close the inlet fitting with the
plug.
4. Wind up the power cord and
hang it on the handle.
5. Empty the tank and clean the
vacuum cleaner.
6. After picking up liquids: Store
the upper section of the
cleaner separately so that
the filter element can dry.
7. Store the vacuum cleaner in
a dry room where it is pro-
tected from unauthorized
use.
ATTIX 7
6.2 Transport Before transporting the machine, close all the latches. Close the
inlet with the inlet cap. Do not tilt the machine if there are liquids in
the dirt tank. Do not use a crane hook to lift the machine. Do not lift
the machine by the trolley handle.
5.1.2 Picking up liquids CAUTION:
Do not pick up flammable
substances.
Before liquids are picked up, al-
ways remove the filter bag/waste
bag and check that the float
(ATTIX 751-2M) or the water
level limit (ATTIX 761-2MXC /
ATTIX 761-2HXC) works prop-
erly. (See section 7.2.3 and
7.2.4 “Replacing the filter ele-
ment“.)
The use of a separate filter el-
ement or filter screen is recom-
mended.
If foam appears, stop work im-
mediately and empty the tank.
To reduce the amount of foam,
use foam killer Nilfisk Foam
Stop (see section 9.2 „Accesso-
ries“ for order number).
7 Maintenance
7.1 Maintenance plan
After finishing work As required
7.2.1 Replacing the waste bag 
7.2.2 Replacing the safety filter bag 
7.2.3 Replacing filter element „H“
(ATTIX 751-0H / ATTIX 751-2M) 
7.2.4 Replacing filter element
(ATTIX 761-2HXC / ATTIX 761-2MXC) 
7.2.5 Emptying dirt tank 

12 *)Option depending on model
Original instruction
7.2 Maintenance work
7.2.1 Replacing the waste
bag
Only after picking up harmless
dust.
CAUTION!
When using ATTIX 761-2MXC
/ ATTIX 761-2HXC clean them
thoroughly before replacing the
waste bag - see sections 4.5.
1
1
1
1
2
2
DANGER!
During the following work, en-
sure that dust is not unneces-
sarily spread around. Wear a P2
breathing mask.
ATTIX 751-0H / 761-2HXC -
ATTIX 751-2M / 761-2MXC:
1. Remove the upper section of
cleaner from the dirt tank.
2. Open the retaining clamps
(1) and remove the interme-
diate ring (2) from the tank.
3. Close the waste bag using
the cable binder (3).
4. Dispose of the dirt in accord-
ance with legal regulations.
5. Insert a new filter bag into the
cleaned tank as described in
the instructions enclosed.
IMPORTANT: Press the filter
bag connection firmly on to
the inlet fitting.
7.2.2 Replacing the safety
filter bag
1. Clean the filter element (see
4.5).
2. Switch off the vacuum clean-
er and wait approx. 5 min-
utes so that the dust can set-
tle in the tank.
3. Open the retaining clamps
and remove the upper sec-
tion of the cleaner from the
dirt tank.
4. Remove the filter bag con-
nection (1) from the inlet fit-
ting.
5. Close the safety filter bag
connection (2) with the slide.
6. Remove the plastic sleeve
from the tank rim and close it
using a cable binder (3).
7. Remove the safety filter bag
from the tank and dispose of
it in accordance with legal
regulations.
8. Insert a new safety filter bag
into the tank according to the
instructions (in the filter bag
packaging).
During the following work, en-
sure that dust is not unnecessarily
spread around. Wear a P2 breath-
ing mask.
CAUTION:
In the case of asbestos abatement
wear additional single-use clothing.
IMPORTANT:
Press the filter bag connection
on the inlet fitting as far as pos-
sible.

13
*)Option depending on model
Original instruction
7.2.3 Replacing filter element
„H“ (ATTIX 751-0H)
and wait approx. 5 minutes so
that the dust can settle in the tank.
3. Open the retaining clamps and
remove the upper section of the
cleaner from the dirt tank. Lay
the upper section of the cleaner
down with the filter element fac-
ing upwards.
4. Using the enclosed tool (2), turn
the filter holder (1) anticlockwise
and remove it.
5. Place the protective filter bag
over the filter element (3).
6. Carefully remove the filter ele-
ment and close the protective
filter bag with a knot.
7. Clean the filter seal (4). Check it
for damage and replace it if nec-
essary.
8. Check the antistatic clamp (5)
for damage and have it replaced
by Nilfisk Service if necessary.
9. Fit a new filter element.
10.Check that the float (6) works
properly. When the filter holder
is turned, the float inside must
move about easily.
11.Using the enclosed tool, attach
the filter holder and turn it clock-
wise to lock it.
12.Dispose of the used filter ele-
ment in accordance with legal
regulations.
DANGER!
During the following work, ensure
that dust is not unnecessarily spread
around. Wear a P2 breathing mask.
CAUTION!
In the case of asbestos abatement
wear additional single-use clothing.
1. Clean the filter element.
2. Switch off the vacuum cleaner
ATTIX 751-0H
7.2.3 Replacing filter element
(ATTIX 751-2M)
DANGER!
During the following work, en-
sure that dust is not unnecessarily
spread around. Wear a P2 breath-
ing mask.
1. Open the retaining clamps
and remove the upper sec-
tion of the cleaner from the
dirt tank. Lay the upper sec-
tion of the cleaner down with
the filter element facing up-
wards.
2. Turn the filter holder anti-
clockwise (1) and remove it
(2).
3. Place the protective filter
bag*)over the filter element
(3).
4. Carefully remove the filter el-
ement and close the protec-
tive filter bag with a knot.
5. Clean the filter seal (4).
Check it for damage and re-
place it if necessary.
6. Check the antistatic clamp
(5) for damage and have it

14 *)Option depending on model
Original instruction
7.2.4 Replacing filter element
„H“ (ATTIX 761-2HXC)
DANGER!
During the following work, ensure
that dust is not unnecessarily spread
around. Wear a P2 breathing mask.
Lay the upper section of the
cleaner down with the filter el-
ement facing upwards. Do not
place the upper section of the
cleaner on the guard (1) and do
not damage the filter element.
2. Unscrew the screw (2), open the
bar handle and remove it.
3. Remove the filter holder (3).
4. Place the protective filter bag
over the filter element.
5. Carefully remove the filter ele-
ment and close the protective
filter bag with a knot.
6. Clean the filter seal (4). Check it
for damage and replace it if nec-
essary.
7. Check the antistatic clamp (5)
for damage and have it replaced
by Nilfisk Service if necessary.
8. Check that the control flap (6) for
filter cleaning works properly. The
control flap should move back and
forwards easily.
9. Clean the level hose (7).
10.Fit a new filter element.
11.Fit the filter holder. Ensure that it
is in the correct position.
12.Fit bar and close bar handle.
13.Dispose of the used filter ele-
ment in accordance with legal
regulations.
CAUTION:
In the case of asbestos abatement
wear additional single-use clothing.
1. Remove the upper section
of cleaner from the dirt tank.
replaced by Nilfisk Service if
necessary.
7. Fit a new filter element.
8. Check that the float (6) works
properly. When the filter
holder is turned, the float in-
side must move about easily.
9. Fit the filter holder and turn it
clockwise to secure it firmly.
10.Dispose of the used filter ele-
ment in accordance with le-
gal regulations.
ATTIX 751-2M
ATTIX 761-2HXC / ATTIX 761-2MXC

15
*)Option depending on model
Original instruction
7.2.4 Replacing filter element
(ATTIX 761-2MXC)
DANGER!
During the following work, en-
sure that dust is not unnecessarily
spread around. Wear a P2 breath-
ing mask.
1. Open the retaining clamps
and remove the upper sec-
tion of the cleaner from the
dirt tank. Lay the upper sec-
tion of the cleaner down with
the filter element facing up-
wards. Do not place the up-
per section of the cleaner
on the guard (1) and do not
damage the filter element.
2. Open the bar handle (2) and
remove it.
3. Remove the filter holder (3).
4. Place the protective filter
bag *) over the filter element.
5. Carefully remove the filter el-
ement and close the protec-
tive filter bag with a knot.
6. Clean the filter seal (4).
Check it for damage and re-
place it if necessary.
7. Check the antistatic clamp
(5) for damage and have it
replaced by Nilfisk Service if
necessary.
8. Check that the control flap
(6) for filter cleaning works
properly. The control flap
should move back and for-
wards easily.
9. Clean the level hose (7).
10.Fit a new filter element.
11.Fit the filter holder. Ensure
that it is in the correct posi-
tion.
12.Fit bar and close bar handle.
13.Dispose of the used filter ele-
ment in accordance with le-
gal regulations.
7.2.5 Emptying the dirt tank
1. Remove the upper section of
cleaner from the dirt tank.
2. Open the retaining clamps
(1) and remove the interme-
diate ring (2) from the tank.
3. Pull the lever in the handle
(3) upwards and tilt the tank.
4. Tip out the collected dirt.
5. Dispose of the dirt in accord-
ance with legal regulations.
or:
3. Open the tank locks (4).
4. Use the handles (5) to lift the
tank out of the frame.
5. Tip out the collected dirt.
6. Place the empty tank in the
frame and close the locks
(4).
7. Dispose of the dirt in accord-
ance with legal regulations.
DANGER!
Only after picking up harmless dust
without a filter bag.
CAUTION!
To empty the dirt tank after picking
up liquids: remove the intermediate
ring as a proper seal is only ensured
during suction.
After emptying the tank: clean the
rim of the tank and the seals in the
intermediate ring and the upper
section of cleaner before refitting
them.
If the seal or groove is dirty or dam-
aged, the suction performance will
be reduced.
1
1
3
3
1
1
2
2
Before reinserting the suction hose:
clean the inlet fitting and hose collar.
5
5
5
5
4
4
4
4

16 *)Option depending on model
Original instruction
8 Troubleshooting
Fault Cause Remedy
‡ Motor does not start > Fuse of the mains socket has
blown.
• Connect mains fuse.
> Overload protection switch
has tripped.
• Switch off the vacuum cleaner
and allow it to cool for approx.
5 minutes. If the cleaner can-
not be started again, contact
the Nilfisk service department.
> Self-acting carbon brush is
worn.
• Have carbon brushes changed
by Nilfisk Service.
‡ Motor does not run in auto-
matic mode
> Power tool is defective or not
connected properly.
• Check that the power tool
works or that the plug is in-
serted correctly.
> The power rating of the elec-
trical tool is too low.
• Note that minimum power ra-
ting is P>40W
‡ The acoustic warning
sounds. (Reduced suction
power)
> Suction power selected with
suction power control is too
low.
• Set suction power in accor-
dance with section 4.2.3. „Set-
ting suction power“.
> Hose diameter is not right for
switch position.
• Set correct switch position for
hose diameter.
> Clogged suction hose/nozzle. • Clean suction hose/nozzle
> The safety filter bag is full. • See section 7.2.2 „Replacing
filter bag“.
> Filter element is clogged. • See section 4.5 „Cleaning filter
element“ and 7.2.3 „Replacing
filter element“.
> ATTIX 761-2HXC -
ATTIX 761-2MXC only:
Defective cleaning mecha-
nism
• Contact Nilfisk Service
‡ No suction power during
wet cleaning
> Tank is full. (Float does not
close the suction opening).
• Switch off the cleaner. Empty
the tank.
‡ The vacuum cleaner swit-
ches off during wet clea-
ning
> Tank is full. • Switch off the cleaner. Empty
the tank.
‡ Voltage fluctuations > Impedance of power supply is
too high.
• Connect the cleaner to another
socket closer to the fuse box.
Voltage fluctuations over 7%
should not occur if the impe-
dance at the transfer point is ≤
0.15 Ω.