Read the operating instructions and comply with the important safety recommendations identied
by the word WARNING!
Operator’s safety
WARNING!
Before starting the vacuum cleaner, it is
absolutely essential to read these operating
instructions and to keep them on hand for
consultation.
The vacuum cleaner can only be used by people who
are familiar with the way it works and who have been
explicitly authorized and trained for the purpose.
Before using the vacuum cleaner, the operators must
be informed, instructed and trained on how to work
it and for which substances its usage is permitted
including the safe method for removing and disposing
of the vacuumed material.
WARNING!
The use of vacuum cleaner by people (including
children) with limited physical and mental capacities
or lacking in experience and knowledge is strictly
forbidden, unless they are supervised by a person
who is experienced in the use and safe handling of the
machine.
Children must be supervised to make sure they will
not play with the vacuum cleaner.
■Keep hair, loose clothing, ngers, and all parts of the
body away from openings and moving parts.
■Turn off all controls before unplugging.
■Use extra care when cleaning stairs.
■Do not use to pick up ammable or combustible liquids
such as gasoline or use in areas where they may be
present.
■Do not pick up anything that is burning or smoking, such
as cigarettes, matches, or hot ashes, or any hazardous
dusts.
■Do not use without dust bag/or lters in place.
■Connect to a properly grounded outlet only. See
grounding instructions.
SAVE THESE INSTRUCTIONS
Grounding instructions
This appliance must be grounded. If it should malfunction or
breakdown, grounding provides a path of least resistance for
electric current to reduce the risk of electric shock.
This appliance is equipped with a cord that has an equipmentgrounding conductor and grounding plug. The plug must be
inserted into an appropriate outlet that is properly installed
and grounded in accordance with all local codes and
ordinances.
IMPORTANT SAFETY INSTRUCTIONS
To reduce the risk of re, electric shock, or injury:
■Do not leave appliance when plugged in. Unplug from
outlet when not in use and before servicing.
■To reduce the risk of electrical shock, do not use
outdoors or on wet surfaces.
■Do not allow this appliance to be used as a toy. This
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machine is for adult-use only.
■Use only as described in this manual. Use only the
manufacturer’s recommended attachments.
■Do not use with damaged cord or plug. If appliance is
not working as it should, has been dropped, damaged,
left outdoors or dropped into water, return it to a service
center.
■Do not pull or carry by the cord, use cord as a handle,
close a door on cord, or pull cord around sharp edges or
corners. Do not run the appliance over the cord. Keep
cord away from heated surfaces.
■Do not unplug by pulling on cord. To unplug, grasp the
plug, not the cord.
■Do not handle plug, cord or appliance with wet hands.
■Do not put any object into the openings. Do not use with
any opening blocked; keep free from dust, lint, hair, and
anything that may reduce airow.
WARNING!
Improper connection of the equipment-grounding
conductor can result in a risk of electric shock.
Check with a qualied electrician or service person
if you are in the doubt as to whether the outlet is
properly grounded. Do not modify the plug provided
with the appliance-if it will not t the outlet, have a
proper outlet installed by a qualied electrician.
Make sure that the appliance is connected to an
outlet having the same conguration as the plug. No
adapter should be used with this appliance. If the
appliance must be reconnected for use on a different
type of electric circuit, the reconnection should be
made by a qualied service personnel.
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General information for using the vacuum
cleaner
Use the vacuum cleaner in accordance with the laws in force
in the country where it is used.
Besides the operating instructions and the laws in force in
the country where the vacuum cleaner is used, the technical
regulations for ensuring safe and correct operation must also
be observed.
Do not perform any operation that could jeopardize the safety
of people, property and the environment.
Comply with the safety indications and prescriptions in this
instruction manual.
Proper uses
This vacuum cleaner is suitable for commercial use, in hotels,
schools, hospitals, factories, shops, ofces and apartment
buildings for example, for hire and in any case for purposes
other than normal domestic use.
This vacuum cleaner is suitable for cleaning and vacuuming
solid materials in indoor and outdoor environments.
■Always leave enough room around the vacuum cleaner
to reach the controls easily.
The vacuum cleaner has been designed to be used by one
operator only.
This vacuum cleaner consists of an automated vacuum
unit, with a lter upstream and a container for collecting the
vacuumed material.
Improper Use
Versions and variations
Versions
Optional
LIQUIDS
This vacuum cleaner can be equipped with a mechanical wet
shutoff.
Contact the local sales manager for pricing.
General recommendations
WARNING!
If an emergency situation occurs:
■lter breakage
■re outbreak
■short-circuit
■motor block
■electric shock
■etc.
Turn the vacuum cleaner off, unplug it and request
assistance from qualied personnel.
WARNING!
The vacuum cleaners must not be used or stored
outdoors, or in damp places.
Only versions with optional equipment can be used
for liquids, if not, they can only be used to vacuum dry
materials.
WARNING!
The following use of the vacuum cleaner is strictly
forbidden:
■Outdoors in case of atmospheric precipitation.
■When not placed on horizontal level ground.
■When the lter is not installed.
■When the vacuum inlet and/or hose are turned to
parts of the human body.
■Without the cover on the vacuum unit.
■Without the guards, protective covers and safety
systems installed by the manufacturer.
■When the cooling vents are partially or totally
clogged.
■When the vacuum cleaner is covered with plastic
or fabric sheets.
■With the air outlet partially or totally closed.
■When used in narrow areas where there is no
fresh air.
■Vacuuming liquids with vacuum cleaners not
equipped with specic original stopping systems.
■Vacuuming the following materials:
1. Burning materials (embers, hot ashes, lit
cigarettes, etc.).
2. Open ame.
3. Combustible gas.
4. Flammable liquids, aggressive fuels
(gasoline, solvents, acids, alkaline solutions,
etc.).
5. Explosive dust/substances and/or ones liable
to ignite in a spontaneous way (such as
magnesium or aluminium dusts, etc.).
IMPORTANT: Fraudulent use is not admitted.
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Vacuum cleaner description
Vacuum Cleaner Parts and Labels
Figure 1
1. Identication plate which includes:
Code of the Model, Technical Specications (see table
on page 6), Serial No., Year of manufacture, Nominal
voltage.
2. Dust container
3. Dust container release lever
4. Inlet
5. Outlet
6. Attention plate
Draws the operator’s attention to the fact that the lter
must only be shaken when the vacuum cleaner is turned
off (see also par. “Primary lter shaker”).
7. Plug for connecting the vacuum cleaner to an electrical
socket.
This vacuum cleaner creates a strong air ow which is drawn
in through the inlet (4 - Fig. 1) and blown out through the
outlet (5 - Fig. 1).
Before turning on the vacuum cleaner, t the vacuum hose
into the inlet and then t the required tool on to the of the
hose.
The vacuum cleaner is equipped with a primary lter which
enables it to be used for the majority of applications.
Besides the primary lter, which retains the most common
types of dust, the vacuum cleaner can be tted with a
secondary lter (absolute) with a higher ltering capacity for
ne dusts and dusts that are hazardous to health.
Optional kits
Please contact the sales personnel for information on
optionals.
Instructions for installing the optional are included in the
conversion kit.
WARNING!
Use only supplied and authorized genuine spare parts.
Accessories
Various accessories are available; refer to the manufacturer’s
accessory catalog.
WARNING!
Use only genuine accessories supplied and
authorized by the manufacturer.
Packing and unpacking
Dispose of the packing materials in compliance with the laws
in force.
Figure 2
Model
A in. (mm)27.55 (700)27.55 (700)
S3B N1
(50 L)
S3B N1
(100 L)
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B in. (mm)33.85 (860)33.85 (860)
C in. (mm)38.89 (1750)38.89 (1750)
Weight with
packing lbs (kg)
189.59 (86)196.21 (89)
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Unpacking, moving, use and storage
Operate on at, horizontal surfaces.
The load-bearing capacity of the surface the vacuum cleaner
is placed on must be suitable for bearing its weight.
Setting to work - connection to the power
supply
WARNING!
■Make sure there is no evident sign of damage to
the vacuum cleaner before starting work.
■Before plugging the vacuum cleaner into the
electrical mains, make sure the voltage rating
indicated on the data plate corresponds to that of
the electrical mains.
■Plug the vacuum cleaner into a socket with a
correctly installed ground contact/connection.
■Make sure that the vacuum cleaner is turned off.
■The plugs and connectors of the connection
cables must be protected against splashes of
water.
■Make sure that connections to the electrical
mains and plug are correct.
■Use the vacuum cleaners only when the cables
that connect to the electrical mains are in perfect
condition (damaged cables could lead to electric
shocks!).
■Regularly check there are no signs of damage,
excessive wear, cracks or aging on the electric
cable.
Extensions
If an extension cable is used, make sure it is suitable for the
power input and protection degree of the vacuum cleaner.
WARNING!
Sockets, plugs, connectors and installation of the
extension cable must maintain the IP protection
degree of the vacuum cleaner, as indicated on the data
plate.
WARNING!
Never spray water on the vacuum cleaner: this could
be dangerous for persons exposed and could short
circuit the power supply.
WARNING!
The vacuum cleaner’s power socket must be protected
by a differential circuit-breaker with surge current
limitation, that shuts off the power supply when the
current discharged to the ground exceeds 30 mA for
30 msec. or an equivalent protection circuit.
WARNING!
When the vacuum cleaner is operating, do not:
■Crush, pull, damage or tread on the cable that
connects to the electrical mains.
■Only disconnect the cable from the electrical
mains by removing the plug (do not pull the
cable).
■Only replace the electric power cable with one of
the same type as the original: 12/3 SJT SP20A.
The same rule applies if an extension is used.
■The cable must be replaced by the manufacturer’s
Service Centre staff or by equivalent qualied
personnel.
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Wet and dry applications
[ NOTE ]
The supplied lters and the bag (if applicable) must be
installed correctly.
WARNING!
Comply with the safety regulations governing the
materials for which the vacuum cleaner is used.
WARNING!
If the version for liquids is used:
■Make sure the liquid level sensor is working
correctly before vacuuming liquids.
■If foam forms, turn off the vacuum cleaner
immediately and empty the container.
■Warning: Switch off the vacuum cleaner
immediately if foam or liquid leaks out.
■Regularly clean the liquid level limiting device
and check to make sure that there are no signs of
damage.
■Warning: Dirty liquid vacuumed up by the vacuum
cleaner must be considered conductive.
WARNING!
Vacuum cleaner for liquids.
When vacuuming a mix of water and air, take care to
avoid overloading the motor of the vacuum unit.
Maintenance and repairs
WARNING!
Disconnect the vacuum cleaner from its power
source before cleaning, servicing, replacing parts or
converting it to another version/variant, the plug must
be disconnected from the socket.
■Carry out only the maintenance operations
described in this manual.
■Use only original spare parts.
■Do not modify the vacuum cleaner in any way.
Failure to comply with these instructions could
jeopardize your safety. Moreover, such action would
immediately make the warranty issued with the
vacuum cleaner void.
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Technical specications
S3B N1
ParameterUnits
50L100L
Voltage @ 60HzVolts120
Type of PowerNo. of phases1
Power, maxkW2
Current Draw, ratedAmps15.80
Max vacuumin. (mm) H2O84.65 (2150)
Airow, max without hose and reductionCFM (L/min)286 (8100)
Filter Area, mainSq. ft21
Filter Area, optional HEPASq. ft25.8
Noise Level, @ 3’ 3” (1 meter)dB(A)75
Protection ClassIP43
Insulation Class MotorClassI
Tank CapacityGallons/liters13.20 (50) 26.40 (100)
Machine InletInches (mm)2.75 (70)
Weightlbs.147.7154.3
Filter efciency, HEPAMPPS tested99.995 (H14)
S3B N1
Dimensions
Model
A in. (mm)31.3 (795)31.3 (795)
B in. (mm)23.6 (600)23.6 (600)
C in. (mm)50.2 (1275)61.8 (1570)
■Storage conditions:
T : -10°C ÷ +40°C
Humidity: 85%
■Operating conditions:
Maximum altitude: 800 m
(Up to 2,000 m with reduced performances)
T : -10°C ÷ +40°C
Humidity: 85%
S3B N1
(50 L)
Figure 3
S3B N1
(100 L)
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Controls and indicators
Figure 4
1. Motor start/stop switch
2. Power indicator
3. Manual lter shaker knob
Figure 5
1. Inlet
Inspections prior to starting
Prior to starting, check that:
■the lters are installed;
■all the levers are locked in place;
■the vacuum hose and tools have been correctly tted to
the inlet (1 - Fig. 5);
WARNING!
Do not use the vacuum cleaner if the lter is faulty.
Starting and stopping
Figure 4
WARNING!
Lock the castor brakes (1) before starting the vacuum
cleaner.
■Toggle the switches “1” (Fig. 4) upward to “on” position to
start the vacuum cleaner.
■Toggle the switches downward to “off” position to turn the
vacuum cleaner off.
Vacuum cleaner operation
WARNING!
Consult the “Troubleshooting” chapter if faults occur.
Primary lter shaker
Depending on the quantity of dust cleaned up, shake the main
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lter by means of the knob “3” (Fig. 4).
WARNING!
Stop the vacuum cleaner before using the lter shaker.
Do not shake the lter while the vacuum cleaner is on,
as this could damage the lter.
Wait before restarting the vacuum cleaner, to allow the dust to
settle.
Emptying the dust container
WARNING!
■Before proceeding with these operations, turn the
vacuum cleaner off and disconnect the plug from
the power socket.
■Check the class of the vacuum cleaner.
Before emptying the container it is advisable to clean the lter
(see “Primary lter shaker”).
■Standard version is not suitable for vacuuming
hazardous dust
▪Release the dust container (2 , Fig. 1) using lever (3,
Fig. 1), then remove and empty it.
▪Make sure the seal is in perfect condition and
correctly positioned.
▪Place the container back in position and secure it
again.
Polyliner kit
You can use the plastic bags and suppressor kit supplied by
our sales company (Fig. 6).
Liquids vacuuming
WARNING!
Check that the vacuum cleaner is equipped with
mechanical liquid shutoff.
■The lter element will be wet after liquids have been
vacuumed.
■A wet lter element can quickly become clogged if the
vacuum cleaner is then used to vacuum dry substances.
■For this reason, make sure that the lter element is dry
or replace it with another one before using the vacuum
cleaner for dry materials.
At the end of a cleaning session
■Turn the vacuum cleaner off with switches (1 - Fig. 4)
and disconnect the plug from the socket.
■Wind the connection cable up and hang it on the handle
and hook provided (Fig. 7).
■Empty the container as described in the “Emptying the
container” paragraph.
■Clean the vacuum cleaner as described in the paragraph
“Maintenance, cleaning and decontamination”.
■Wash the container with clean water if aggressive
substances have been vacuumed.
■Store the vacuum cleaner in a dry place, out of reach of
unauthorized persons.
Emergency stopping
Toggle all switches downward to the “off” position.
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Maintenance, cleaning and
decontamination
WARNING!
To guarantee the safety level of the vacuum cleaner,
only original spare parts supplied by the manufacturer
should be used.
WARNING!
The precautions described below must be taken
during all maintenance operations, including cleaning
and replacing the primary and absolute lters.
WARNING!
The maintenance, cleaning and decontamination
operations must only be performed with the vacuum
cleaner turned off and the plug disconnected from the
power socket.
It is absolutely forbidden to perform maintenance with
the plug connected to the socket.
Danger of electric shock!
■If the user is performing the maintenance operations,
the vacuum cleaner must be disassembled, cleaned
and overhauled as far as reasonably possible without
hazards for the maintenance personnel or other people.
The suitable precautions include decontamination before
disassembling the vacuum cleaner, adequate ltered
ventilation of the exhaust air from the room in which it
is disassembled, cleaning the maintenance area and
suitable personal protection.
■A check must be carried out by the manufacturer or the
personnel of the same at least once a year. For example:
check the air lters to nd out whether the air-tightness
of the vacuum cleaner has been impaired in any way and
make sure the electric system operates correctly.
Primary lter replacement
Figure 8
Before proceeding with these operations, turn off the vacuum
cleaner and remove the plug from the power socket.
■Release the stop (1), unscrew the lter shaker knob (2).
■Release the closing band (3).
■Lift the motor head (4).
■Lift lter (5) and unscrew the lter clamp (6) on bearing
ring (7).
■Unscrew cage (8) and overturn the lter, exposing
coupling clamp (9).
■Release the clamps and detach the cage from the lter.
■Dispose of the lter according to the laws in force.
■Fit the new lter and secure it in the cage with special
clamps. Assemble the components in the reverse order
of disassembly.
WARNING!
■Take care not to raise dust when this operation
is carried out. Wear an N100 (P3) mask and other
protective clothing plus protective gloves (PPE/
DPI) suited to the hazardous nature of the dust
collected; refer to the laws in force.
■Before proceeding wiht these operations, turn off
the vacuum cleaner and remove the plug from the
power socket.
■Check the class of the vacuum cleaner.
WARNING!
Filter replacement is a serious matter. The lter must
be replaced with one of identical characteristics,
ltering surface and category.
Otherwise the vacuum cleaner will not operate
correctly.
WARNING!
Primary and absolute lter disassembly
and replacement
WARNING!
When the vacuum cleaner is used to vacuum
substances hazardous to health, the lters become
contaminated, therefore:
■work with care and avoid spilling the vacuumed
dust and/or material;
■place the disassembled and/or replaced lter in a
sealed plastic bag;
■close the bag hermetically;
■dispose of the lter in accordance with the laws
in force.
WARNING!
Filter replacement is a serious matter. The lter must
be replaced with one of identical characteristics,
ltering surface and category.
Otherwise the vacuum cleaner will not operate
correctly.
Reassemble with care to avoid trapping your hands
between the motorhead and the lter chamber. Use
gloves that provide ANSI/ISEA Level “2” protection.
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If necessary contact the manufacturer’s Service Centre.
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HEPA lter assembly or replacement
WARNING!
Do not use the HEPA lter again after having removed
it from the vacuum cleaner.
Figure 9
1. Vacuuming unit
2. Closing band
3. Filter shaker stop
4. Filter shaker knob
5. Washer
6. Ferrule
7. Absolute lter
8. Seal
9. Disc
10. Nut
WARNING!
Reassemble with care to avoid trapping your hands
between the motorhead and the lter chamber. Use
gloves that provide ANSI/ISEA Level “2” protection.
Before proceeding with these operations, turn the vacuum
cleaner off and disconnect the plug from the power socket.
Assembly
1. Release the stop (3) and unscrew the lter shaker knob
(4), release the closing band (2) and remove the head
(1).
2. Unscrew the nut from the ferrule under the head (1),
insert the washer (5), screw the ferrule (6), insert the
lter (7), the gasket (8) and the disc (9), screw the nut
(10), t the head back in position and x with the closing
band (2), screw the knob (4) and lock it with the stop (3).
Tightness inspection
Hoses check
Make sure the suction hoses (Fig. 10) are in a good condition
and correctly xed.
If the hoses are damaged, broken or badly connected to the
unions, they must be replaced.
When sticky materials are treated, check for possible clogging
along the hose, in the inlet and on the bafe plate inside the
ltering chamber.
Scrape inlet (2, Fig. 10) from the outside and remove the
deposited waste as indicated in the gure.
Filtering chamber tightness check
If gasket (1, Fig. 11) between container (4) and lter chamber
(3) fails to guarantee a good seal:
■Loosen the four screws (2) that lock the ltering chamber
(3) against the vacuum cleaner structure.
■Allow the ltering chamber (3) to lower down and tighten
the screws (2) once it has reached the tightness position.
If an optimal seal cannot be obtained and the gasket is torn or
cracked, etc. it must be replaced.
Disposing of the vacuum cleaner
Dispose of the vacuum cleaner in compliance with the laws in
force.
■Proper disposal (electric and electronic waste).
(Applicable in countries providing a separate
collection system)
Replacement
1. Proceed as indicated in step 1 of the assembling
procedure.
2. Unscrew the nut (10), remove the disc (9) and the gasket
US
(8).
3. Replace the lter (7) and proceed in the reverse order to
reassemble the head.
To dispose of the lter put it in a sealed plastic bag, close it
hermetically and dispose of it in accordance with the laws in
force.
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Recommended spare parts
The following is a list of spare parts that should be kept ready at hand in order to speed up maintenance operations.
Refer to the manufacturer’s spare parts catalogue when ordering spare parts.
S3B N1
Description
Star lter kit M class
Star lter kit L class
Filter ring sealZ8 17026
Filter chamber gasket40000762
Filter clampZ8 18079
Absolute lterZ5 60357
120V 1000W Motor40000928
Brushes (carbon) for 120V 1000W motors (2 brushes)40000886
Model
Standard
4081701090
40000338
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Troubleshooting
ProblemCauseRemedy
The vacuum cleaner does not startLack of power supplyCheck for power at the socket.
The vacuum cleaner revolutions
increase
Dust leaks from the vacuum cleanerThe lter is tornReplace it with another of identical type.
Noisy motorsMotor brushes (carbon) worn or brokenRemove and replace the (carbon) motor brushes.
Electrostatic current on the vacuum
cleaner
Clogged primary lterUse the lter shaker (models with manual lter
Clogged vacuum hoseCheck the vacuum hose and clean it.
Inadequate lterReplace it with another of a suitable category and
Non existent or inefcient groundingCheck all ground connections. In particular on the
Check the condition of the socket and the cable.
Ask for assistance to be performed by a qualied
manufacturer’s technician.
shaker). Replace it if this is not sufcient.
check.
vacuum inlet tting; replace the hose with an antistatic
hose.
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WARRANTY
Nilsk warrants that its equipment will be free of defects in workmanship or material for a period of two years from the date of
delivery. If the vacuum fails to meet these warranty standards, Nilsk shall, upon notication within such time period, correct
such non-conformity, at its option, either by repairing any defective part or parts, or by replacing a part or parts, provided that the
equipment is returned to an authorized Nilsk service facility. In all cases freight both ways will be at expense of the customer.
Equipment shall not be returned without advance notice to, and consent of Nilsk.
EXCEPT AS SPECIFICALLY SET FORTH HEREIN, NILFISK MAKES NO WARRANTIES, EITHER EXPRESSED OR
IMPLIED, AS TO ANY MATTER WHATSOEVER, INCLUDING WITHOUT LIMITATION ANY AND ALL WARRANTIES OF
MERCHANTABILITY, FITNESS OF PURPOSE, OR OTHER WARRANTIES, ALL OF WHICH ARE EXPRESSLY DISCLAIMED
AND EXCLUDED. NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR SPECIAL, INDIRECT, INCIDENTAL OR
CONSEQUENTIAL DAMAGES, INCLUDING BUT NOT LIMITED TO LOSS OF PRODUCTION, LOSS OF PROFITS OR ANY
OTHER SIMILAR INDIRECT LOSSES WHICH MIGHT OCCUR AS A RESULT OF DEFECTS, PARTIAL OR TOTAL FAILURE
OF THE PRODUCT TO PERFORM AS SPECIFIED.
Correction of non-conformities or defects in the manner and for the period of time provided above, shall constitute fullment
of all liabilities of Nilsk to the customer, whether based on contract, negligence or otherwise with respect to, or arising out of
such equipment. The remedies set forth herein are exclusive, and the liability of Nilsk with respect to this sale or anything done
in connection therewith, whether in contract, in tort, under any warranty, or otherwise, shall not, except as expressly provided
herein, exceed the price of the equipment or part on which such liability is based.
This warranty does not cover repairs due to normal wear and tear, accident, neglect, misuse or abuse, incorrect installation or
use other than as described in the instruction booklet. Breaks in hoses and cables are not covered.
This warranty is rendered void if the motor number plate is removed or defaced or if repairs are made or attempted by persons
not authorized by Nilsk.
Some states do not allow exclusion of implied warranties or limitations on how long an implied warranty lasts so the above
exclusions or limitation of implied warranties may not apply. Some states do not allow exclusion or limitation of incidental or
consequential damages so the above exclusion or limitation of incidental or consequential damages may not apply. Limited
warranties set forth above give specic legal rights. Customer may have other rights which vary from state to state.
Nilsk, Inc. 740 Hemlock Rd., Suite 100, Morgantown, PA 19543, (800)-645-3475
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A
B
C
Typ S3 1~ 13 A
S/N 07AJ814 3000 W Kg 71
Ref.No: 4010300258 50/60 Hz 44