Hilti VC 20M-X User manual

VC 20M-X
VC 20L-X
VC 40M-X
VC 40L-X
English 1
ﻋﺮﺑﻲ 19
Türkçe 37
日本語 54
한국어 71
繁體中文 87
中文 102

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VC 20M-X
VC 20L-X
VC 40M-X
VC 40L-X
en Originaloperatinginstructions....................................... 1
ar ﺩﻟﻴﻞﺍﻻﺳﺘﻌﻤﺎﻝﺍﻷﺻﻠﻲ .......................................... 19
tr Orijinalkullanımkılavuzu ......................................... 37
ja オリジナル取扱説明書 ............................................ 54
ko 오리지널사용설명서............................................. 71
zh 原始操作說明.................................................. 87
cn 原版操作说明译文 ............................................... 102

*2268127* 2268127 English 1
Original operating instructions
1 Information about the documentation
1.1 About this documentation
• Read this documentation before initial operation or use. This is a prerequisite for safe, trouble-free
handling and use of the product.
• Observe the safety instructions and warnings in this documentation and on the product.
• Always keep the operating instructions with the product and make sure that the operating instructions
are with the product when it is given to other persons.
1.2 Explanation of symbols
1.2.1 Warnings
Warnings alert persons to hazards that occur when handling or using the product. The following signal words
are used:
DANGER
DANGER !
▶Draws attention to imminent danger that will lead to serious personal injury or fatality.
WARNING
WARNING !
▶Draws attention to a potential threat of danger that can lead to serious injury or fatality.
CAUTION
CAUTION !
▶Draws attention to a potentially dangerous situation that could lead to personal injury or damage to the
equipment or other property.
1.2.2 Symbols in the documentation
The following symbols are used in our documentation:
Read the operating instructions before use
Caution
Instructions for use and other useful information
Dealing with recyclable materials
Do not dispose of electric equipment and batteries as household waste
1.2.3 Symbols in the illustrations
The following symbols are used in our illustrations:
These numbers refer to the corresponding illustrations found at the beginning of these operating
instructions
The numbering reflects the sequence of operations shown in the illustrations and may deviate
from the steps described in the text
Item reference numbers are used in the overview illustrations and refer to the numbers used in
the Product overview section
This symbol is intended to draw your special attention to certain points for handling the product.

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1.3 Product-dependent symbols
1.3.1 Symbols on the product
The following symbols can be used on the product:
The power tool supports near-field communication (NFC) technology, which is compatible with
iOS and Android platforms.
If applied on the product, the product has been certified by this certification body for the US and
Canadian markets according to the applicable standards.
1.3.2 Prohibition symbols
The following prohibition symbols are used on the product:
Lifting by crane prohibited
1.4 Special stickers on the product
WARNING: This vacuum cleaner contains dusts that are hazardous to health. Only trained specialists wearing
suitable protective equipment are permitted to undertake emptying and maintenance, including disposal of
the dust bag. Operate the vacuum cleaner only with the filter system complete and in full working order.
One of the following warning stickers is affixed to the vacuum cleaner:
VC 20L-X
VC 40L-X
Warning sticker, L-class vacuum cleaners:
Make sure that the warning sticker is clearly visible.
VC 20M-X
VC 40M-X
Warning sticker, L-class vacuum cleaners:
Make sure that the warning sticker is clearly visible.
1.5 Product information
Hilti products are designed for professional users and only trained, authorized personnel are permitted to
operate, service and maintain the products. This personnel must be informed of any particular hazards that
may be encountered. The product and its ancillary equipment can present hazards if used incorrectly by
untrained personnel or if used not in accordance with the intended use.
The type designation and serial number are stated on the rating plate.

*2268127* 2268127 English 3
▶Write down the serial number in the table below. You will be required to state the product details when
contacting Hilti Service or your local Hilti organization to inquire about the product.
Product information
Wet/dry vacuum cleaner VC 20M-X
VC 20L-X
VC 40M-X
VC 40L-X
Generation 01
Serial no.
1.6 Declaration of conformity
We declare, on our sole responsibility, that the product described here complies with the applicable directives
and standards. A copy of the declaration of conformity can be found at the end of this documentation.
The technical documentation is filed here:
Hilti Entwicklungsgesellschaft mbH | Tool Certification | Hiltistrasse 6 | D-86916 Kaufering, Germany
2 Safety
2.1 General safety instructions
In addition to the safety instructions given in the various sections of these operating instructions, the following
points must be strictly observed at all times.
▶Read all the instructions. Failure to follow all the instructions listed below may result in electric shock,
fire and/or serious injury.
▶If the appliance is used in conjunction with an electric tool, read and follow the operating
instructions for the electric tool and all the warnings.
▶Modification of the appliance is not permitted.
▶Use the right appliance for the job. Do not use the appliance for purposes for which it was not
intended. Use it only as directed and when in faultless condition.
▶Before beginning work with the appliance, find out how to operate it correctly and about any
hazards associated with the materials it will be picking up and how these materials can be
disposed of.
▶Take the influences of the surrounding area into account. Do not use the appliance where there is
a risk of fire or explosion.
▶The appliance may only be used by persons who are familiar with it, have been trained on how to
use it safely and who understand the resulting hazards. The appliance is not intended for use by
children. Children must be supervised in order to ensure that they don’t play with the appliance.
▶Store appliances in a secure place when not in use. When not in use, appliances must be stored
in a dry, high place or locked away out of reach of children.
2.2 Personal safety
▶Stay alert, watch what you are doing and use common sense when working with the product.
Do not use the vacuum cleaner while you are tired or under the influence of drugs, alcohol or
medication. A moment of inattention while operating the appliance may result in serious personal injury.
▶The user and any other persons in the vicinity must wear suitable eye protection, a hard hat, ear
protection, protective gloves, safety footwear and breathing protection while the appliance is in
use or while maintenance work on it is being carried out.
▶Make sure that the vacuum cleaner cannot roll away or fall.
▶Engage the wheel brakes so that the vacuum cleaner stands securely. If the wheel brakes are
disengaged the vacuum cleaner may run away out of control.
▶Observe the accident prevention regulations applicable in your country.
▶If devices are provided for the connection of dust extraction and collection facilities, ensure these
are connected and properly used. Use of a vacuum cleaner can reduce dust-related hazards.
2.3 Use and care of the appliance
▶Never leave the appliance unattended.

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▶Do not deactivate the filter cleaning system when vacuuming up hazardous dusts, especially when
the appliance is used in combination with power tools that generate dust.
▶Protect the appliance from frost.
▶Clean the water level limiting device regularly with a brush, in accordance with the instructions,
and check it for signs of damage.
▶When fitting the suction head on to the vacuum cleaner, take care to avoid pinching your fingers
or damaging the supply cord. This presents a risk of injury or damage.
▶Check the appliance and its accessories for any damage. Guards, safety devices and any slightly
damaged parts must be checked carefully to ensure that they function faultlessly and as intended.
Check that moving parts function faultlessly, without sticking, and that no parts are damaged. In
order to ensure faultless operation of the appliance, all parts must be fitted correctly and must
meet the necessary requirements.
▶Have the appliance serviced by a qualified repair person using only genuine Hilti spare parts. The
safety of the appliance can thus be maintained.
▶Always unplug the supply cord from the power outlet when the appliance is not in use (during
breaks), before cleaning and maintenance and before changing the filter or accessories. This
preventive safety measure reduces the risk of starting the appliance accidentally.
▶Never pull the vacuum cleaner by the supply cord to a new working position. Do not run the wheels
of the vacuum cleaner over the supply cord.
▶Do not transport the appliance by crane.
VC 20M-X
VC 40M-X
Additionally in the case of M-class vacuum cleaners
▶Close the hose inlet socket with the cap before transporting the appliance and when it is not
in use.
2.4 Electrical safety
▶The plug on the supply cord of the appliance must match the outlet. Do not change the plug in any
way. Do not use adapter plugs with earthed (grounded) appliances. Unmodified plugs and matching
outlets reduce risk of electric shock.
▶Insert the plug in a suitable earthed/grounded power outlet which has been correctly and safely
installed and is in compliance with local regulations. If you are in doubt about the effectiveness of
the power outlet’s earth/ground connection, have it checked by a qualified specialist.
▶Avoid body contact with earthed or grounded surfaces such as pipes, radiators, cookers, stoves
and refrigerators. There is an increased risk of electric shock if your body is grounded.
▶Do not expose the appliance to rain or wet conditions. Water entering an electric appliance will
increase the risk of electric shock.
▶Check to ensure that the supply cord does not lie in a puddle of water.
▶Check the appliance’s supply cord at regular intervals and have it replaced by Hilti Service if
damage is found. Check extension cords at regular intervals and replace them if found to be
damaged.
▶Do not touch the supply cord or extension cord if they are damaged while working. Disconnect
the supply cord plug from the power outlet. Damaged supply cords or extension cords present a risk
of electric shock.
▶The electric supply cord may be replaced only with a cord of the type specified in the operating
instructions.
▶Do not abuse the cord. Never use the cord for carrying, pulling or unplugging the appliance. Keep
the cord away from heat, oil, sharp edges or moving parts. Damaged or entangled cords increase
the risk of electric shock.
▶When operating an electric appliance outdoors, use only extension cords of a type suitable for
outdoor use. Use of an extension cord suitable for outdoor use reduces the risk of electric shock.
▶In the event of an interruption in the electric supply, switch the appliance off and unplug it from
the power outlet.
▶Use the power outlet on the appliance only for the purposes described in the operating instructions.
▶Never operate the appliance when it is dirty or wet. Dust (especially dust from conductive materials)
or dampness adhering to the surface of the appliance may, under unfavorable conditions, lead to electric
shock. Dirty or dusty appliances should thus be checked by Hilti Service at regular intervals,
especially if used frequently for working on conductive materials.

*2268127* 2268127 English 5
2.5 Workplace
▶Ensure that the workplace is well lit.
▶Ensure that the workplace is well ventilated. Exposure to dust at a poorly ventilated workplace may
result in damage to the health.
▶Keep the workplace tidy. Objects which could cause injury should be removed from the working
area. Untidiness at the workplace can lead to accidents.
▶Do not operate the appliance in explosive atmospheres, such as in the presence of flammable
liquids, gases or dust. Electric appliances cause sparks which may ignite the dust or fumes.
2.6 The material vacuumed up
▶Do not use the vacuum cleaner to vacuum up hazardous dusts of a dust class higher than the
dust class for which the vacuum cleaner is rated. Do not use the vacuum cleaner to vacuum up
flammable and/or explosive dusts (e.g. magnesium or aluminum dust). Do not use the vacuum
cleaner to vacuum up materials hotter than 60 °C (140 °F) (e.g. glowing cigarettes, hot ash).
▶Before starting work, check the hazard class of the dust that will be produced when working. Hazardous
materials, such as asbestos and lead, are outside the intended use → page 6 of the product and will void
the warranty.
▶Dust produced by grinding, sanding, cutting and drilling can contain dangerous chemicals. Some
examples are: lead or lead-based paints; brick, concrete and other masonry products, natural stone
and other products containing silicates; certain types of wood, such as oak, beech and chemically
treated wood; asbestos or materials that contain asbestos. Determine the exposure of the operator and
bystanders by means of the hazard classification of the materials to be worked. Implement the necessary
measures to restrict exposure to a safe level, for example by the use of a dust collection system or by
the wearing of suitable respiratory protection. The general measures for reducing exposure include:
▶Working in an area that is well ventilated,
▶Avoidance of prolonged contact with dust,
▶Directing dust away from the face and body,
▶Wearing protective clothing and washing exposed areas of the skin with water and soap.
▶Do not use the appliance to vacuum up flammable, explosive or aggressive liquids (coolants and
lubricants, gasoline, solvents, acids (pH < 5), alkalies (pH > 12.5), etc.).
▶Switch the vacuum cleaner off immediately if foam or liquids escape from it.
▶Wear protective gloves when using the appliance to vacuum up hot materials at temperatures up
to 60 °C (140 °F).
▶When working with mineral drilling slurry, wear protective clothing and avoid skin contact with the
slurry (pH > 9: caustic).
▶Avoid contact with alkaline or acidic liquids. If contact accidentally occurs, rinse with water. In
the event of the liquid coming into contact with the eyes, rinse the eyes with plenty of water and
consult a doctor.
VC 20L-X
VC 40L-X
Additionally in the case of L-class vacuum cleaners
▶The Dust Class L vacuum cleaner is suitable for vacuuming up dry, non-flammable dusts, wood
shavings and hazardous dusts with an exposure limit value of > 1 mg/m³. The vacuum cleaner must
be equipped with suitable filters corresponding to the hazard classification of the dusts to be
vacuumed up.
VC 20M-X
VC 40M-X
Additionally in the case of M-class vacuum cleaners
▶The Dust Class M vacuum cleaner is suitable for vacuuming up dry, non-flammable dusts, wood
shavings and hazardous dusts with an exposure limit value ≧ 0.1 mg/m³. The vacuum cleaner must
be equipped with suitable filters corresponding to the hazard classification of the dusts to be
vacuumed up.

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3 Description
3.1 Product overview 1
@Transport handle (extending)
;Lashing loop for Hilti case
=Carrying handle
%Electric tool power outlet
&Display and control panel
(Blanking cover for wireless module (optional)
)Control switch
+Intake fitting (suction hose)
§Container latch (2 of)
/Supply cord
:Securing hook (2 of) with rubber strap
∙Suction head
$Waste material container
£Filter cassette with retainer
3.2 Intended use
The products described here are industrial vacuum cleaners designed for universal, commercial use. They
may be used for wet or dry applications.
Use of the product to clean down persons or animals is not permissible. Underwater use is not permissible.
▶Before beginning work with the product, find out how to operate it correctly and about any hazards
associated with the materials you will be working with and how these materials can be disposed of safely.
▶Do not use the product for continuous, stationary operation in automatic or semi-automatic systems.
▶To reduce the risk of injury, use only genuine Hilti accessories and accessory tools.
▶Use an anti-static suction hose in order to avoid electrostatic effects.
▶Do not vacuum up objects or materials that could cause injury by piercing through the dust bag (e.g.
pointed or sharp objects).
▶Do not stand on the product (do not use it as a substitute for a ladder).
▶Comply with the accident prevention regulations applicable in your country.
Permissible applications:
With vacuum cleaners it is necessary to ensure an adequate rate of air exchange (L) in the room in
situations where the expelled air is returned to the room.
Comply with national regulations!
▶Vacuuming up large quantities of dust from work with Hilti diamond grinders, cut-off saws, rotary
hammers and core drilling machines using dry-cutting core bits.
▶Vacuuming up mineral drilling slurry from working with Hilti diamond core bits or Hilti diamond saws,
and liquids up to a temperature of max. 60 °C (140 °F).
▶Vacuuming up oil and liquid media up to a temperature of max. 60 °C (140 °F).
▶Wet and dry cleaning of wall and floor surfaces.

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VC 20M-X
VC 40M-X
Additionally in the case of M-class vacuum cleaners
▶Collecting dry, non-flammable dusts, liquids, wood shavings and hazardous dusts with an exposure
limit value of ≧ 0.1 mg/m³ (dust class M).
▶Machines designed for picking up mineral dust containing quartz must correspond to at least dust
class M.
VC 20L-X
VC 40L-X
Additionally in the case of L-class vacuum cleaners
▶Vacuuming up dry, non-flammable dusts, liquids, wood shavings and hazardous dusts with an
exposure limit value of > 1 mg/m³ (dust class L).
3.3 Possible misuse
▶Do not use the vacuum cleaner to vacuum up asbestos.
▶Do not operate the vacuum cleaner when it is laid flat.
▶Do not use the vacuum cleaner to vacuum up substances that present a risk of explosion, glowing,
burning or flammable substances or aggressive dusts (e.g. magnesium or aluminum dust) (exception:
wood shavings).
▶Do not use the vacuum cleaner to vacuum up flammable liquids (e.g. gasoline, solvents, acids, coolants
and lubricants).
3.4 Status indicators on the product
Display Description
Change filter service indicator
When the LED lights up, the filter is clogged.
1. Check the fill level in the waste material container
2. Press the Manual filter cleaning operating button.
3. Check the filter; replace it if necessary.
Fill level monitoring
When the LED lights up, automatic cut-out in wet operating mode is active.
Empty the container and clean the sensors.
Power indicator
The LED array is an indicator for current filter status. When suction power is
at maximum, all three 3 LEDs light up.
3.5 Operating buttons on the product
Operating button Description
Manual filter cleaning
Press this button to perform manual cleaning of the filter.
Automatic filter cleaning
When the LED lights up, automatic filter cleaning is active.
Deactivate automatic filter cleaning by pressing the button. The LED goes
out.

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Operating button Description
Setting hose diameter (only for M-class appliances)
Press the button to set the diameter of the hose currently in use.
The setting depends on the tool that you connect and the diameter of its
suction hose adapter and has to be changed as necessary.
3.6 Items supplied
Wet/dry vacuum cleaner including filter element, suction hose complete with rotatable connector (at the
vacuum cleaner end) and connector for accessories, PE dust bag (plastic), operating instructions
Other system products approved for use with this product can be found at your local Hilti Store or at:
www.hilti.group
3.7 Acoustic warning
VC 20M-X
VC 40M-X
M-class vacuum cleaners have an acoustic warning signal. The acoustic warning is emitted for safety
reasons when the air speed in the hose drops below 20 m/s.
In order to ensure that the acoustic warning is emitted correctly, the hose diameter setting must be set to
the diameter of the suction hose in use.
3.8 Filter cleaning
The filter cleaning system functions only when a suction hose is connected.
The vacuum cleaner has manual and automatic filter cleaning that removes most of the dust adhering to the
filter element.
Automatic filter cleaning can be switched off by pressing the "Automatic filter cleaning" button and switched
back on by pressing the button again.
Status Meaning
LED lights. The filter cleaning system is active.
LED doesn’t light. The filter cleaning system is not active.
The filter cleaning system is activated automatically each time the vacuum cleaner is switched on.
The filter element is cleaned automatically by a blast of air (a pulsating noise is heard).
In order to maintain continuously high suction power, in system applications (especially grinding and
sanding, cutting and slitting) or when collecting large quantities of dust, automatic filter cleaning must
be activated.
Independently of automatic filter cleaning, you can clean the filter at any time by pressing the "Manual filter
cleaning" button.
Power cleaning: To achieve maximum power for filter cleaning, press the "Manual filter cleaning"
button while at the same time keeping the end of the hose closed.

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3.9 Instructions for use
VC 20M-X
VC 40M-X
Always use a dust bag when working with the M-class vacuum cleaner.
Class M for vacuuming up dust types with an exposure limit value of ≥ 0.1 mg/m3.
Accessories and types of use
Material
number Accessories Type of use
2261451 Dust bag, plastic, PE VC 20,
VC 150-6 Working with mineral materials, wet and dry
2262095 Dust bag, plastic, PE VC 40,
VC 150-10 Working with mineral materials, wet and dry
2261258 Dust bag, Premium, VC 20,
VC 150-6 Working with wood and working with mineral mate- rials (concrete), dry
2262130 Dust bag, Premium, VC 40,
VC 150-10 Working with wood and working with mineral mate- rials (concrete), dry
2261453 PTFE VC 20⁄40⁄150 filter Universal use, wet and dry
2261257 VC 20⁄40⁄150 universal filter Universal use, wet and dry
2278640 DRY VC 20⁄40⁄150 universal filter Dry
2261452 HEPA VC 20⁄40⁄150 filter Wet and dry
203867 36x4,65M AS suction hose Wet and dry
4 Technical data
4.1 Product properties
If the appliance is powered by a generator or transformer, the generator or transformer’s power output
must be at least twice the rated input power shown on the rating plate of the appliance. The operating
voltage of the transformer or generator must always be within +5 % and -15 % of the rated voltage of
the product.
VC 20-X VC 40-X
Weight 11 kg 14.4 kg
Dimensions (L x W x H) 530 mm x 290 mm x 415 mm 560 mm x 365 mm x 590 mm
Max. additional load 25 kg 25 kg
Container capacity 15 ℓ 30 ℓ
Effective dust capacity 15 kg 34 kg
Effective water capacity 9 ℓ 22.8 ℓ
Air temperature −10 ℃ … 40 ℃ −10 ℃ … 40 ℃
Automatic filter cleaning sensor-controlled sensor-controlled
AC frequency 50 Hz … 60 Hz 50 Hz … 60 Hz
Protection class I I
Protection class IP X4 IP X4

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4.2 Rated voltage
100 V 110 V 110 V
(GB 16 A) 110 V (GB 32 A)
Rated power input 1,200 W 1,100 W 1,100 W 1,100 W
Power rating of built-in electric
tool power outlet on the appli-
ance
•/• •/• 650 W 1,600 W
Mains connection (type) CNS HVCTF
300 3x2 mm2CNS HVCTF 300 3x2 mm2H07 RNF 3G 1.5 mm2HARSJT 3x12 (2.5) AWG
220 - 240 V 220 - 240 V (CH) 220 - 240 V (GB)
Rated power input 1,200 W 1,200 W 1,200 W
Power rating of built-in electric
tool power outlet on the appli-
ance
• 2,400 W
• 1,200 W
(only New
Zealand)
1,100 W 1,800 W
Mains connection (type) H07 RNF 3G
1.5 mm2H07 RNF 3G 1.5 mm2H07 RNF 3G 1.5 mm2
4.3 Maximum volumetric flow rate and maximum vacuum
100 V 110 V (GB 32 A) 110 V
Max. volume flow rate (turbine) 71 ℓ/s 71 ℓ/s 71 ℓ/s
Max. volume flow rate (end of
hose) 177.1 m³/h (49.2 ℓ/s) 177.1 m³/h (49.2 ℓ/s) 177.1 m³/h (49.2 ℓ/s)
Max. volume flow rate (end of
hose; ⌀36 mm, L=4.65 m) 138.6 m³/h (38.5 ℓ/s) 138.6 m³/h (38.5 ℓ/s) 138.6 m³/h (38.5 ℓ/s)
Max. vacuum 22.7 kPa (227 mbar) 22.3 kPa (223 mbar) 22.3 kPa (223 mbar)
220 - 240 V 220 - 240 V (CH)
Max. volume flow rate (turbine) 74 ℓ/s 74 ℓ/s
Max. volume flow rate (end of
hose) 183 m³/h (50.6 ℓ/s) 183 m³/h (50.6 ℓ/s)
Max. volume flow rate (end of
hose; ⌀36 mm, L=4.65 m) 142 m³/h (39.4 ℓ/s) 142 m³/h (39.4 ℓ/s)
Max. vacuum 24.5 kPa (245 mbar) 24.5 kPa (245 mbar)
4.4 Noise and vibration information (measured in accordance with EN 60335)
The following information applies to all VC 20 and VC 40 industrial vacuum cleaners.
Emission sound pressure level (LpA)69 dB(A)
Uncertainty for the sound pressure level (KpA)2.5 dB(A)
Vibration emission value < 2.5 m/s²
5 Use of extension cords
WARNING
A damaged supply cord presents a hazard! Do not touch the supply cord or extension cord if damaged
while working. Disconnect the supply cord plug from the power outlet.
▶Check the appliance’s supply cord at regular intervals and have it replaced by a qualified specialist if
found to be damaged.
• Use only extension cords of a type approved for the application and with conductors of adequate
cross-section. Otherwise the performance of the appliance may be affected and the cord may overheat.
• Regularly check the extension cord for damage.

*2268127* 2268127 English 11
• Replace damaged extension cords.
• When working outdoors, use only extension cords that are approved and correspondingly marked for
this application.
6 Before use
DANGER
Electrical hazards. Fatal or serious injury may result if the vacuum cleaner is not correctly connected to the
electric supply.
▶Connect the vacuum cleaner only to a properly earthed/grounded power source.
CAUTION
Risk of injury presented by the appliance running away out of control. The vacuum cleaner may run
away out of control if the wheel brakes are not engaged.
▶Engage the wheel brakes so that the vacuum cleaner stands securely.
6.1 Operating the appliance for the first time
Select the dust bag that is best suited to the material to be collected (mineral, wood) and the nature
of the application (dry/wet). → See the section headed “Instructions for use”
1. Open the two catches.
2. Lift the suction head off the waste material container.
3. Remove the accessories from the waste material container and packaging.
4. Insert a dust bag in accordance with the instructions.
5. Fit the suction head on to the waste material container and close the two catches.
6. Check to ensure that the suction head is fitted correctly and secured.
7. Connect the suction hose.
6.2 Inserting a premium dust bag 2
Sharp pointed objects could pierce through the dust bag.
Check that no objects have pierced through the dust bag.
1. Disconnect the supply cord plug from the power outlet.
2. Open the 2 catches.
3. Lift the suction head off the waste material container.
4. Insert the premium dust bag into the waste material container.
5. Make sure that the adapter engages correctly and that the dust bag does not project past the edge of
the waste material container.
6. Position the suction head on top of the waste material container.
7. Close the 2 catches.
8. Check to ensure that the suction head is fitted correctly and secured.
9. Connect the suction hose.
6.3 Changing dust bag (plastic) 3
1. Disconnect the supply cord plug from the power outlet.
2. Open the 2 catches.
3. Lift the suction head off the waste material container.
4. If applicable, remove the full plastic dust bag.
5. Insert a new dust bag (plastic) into the waste material container and fold the dust bag down over the
edge of the waste material container all round.
▶The holes in the dust bag must be in the inside of the waste material container.
▶Use the black line to position the dust bag correctly relative to the edge of the waste material
container.
6. Position the suction head on top of the waste material container.

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7. Close the 2 catches.
8. Check to ensure that the suction head is fitted correctly and secured.
9. Connect the suction hose.
7 Operation
WARNING
Risk of injury. Damage to the filter system may allow harmful dust (health hazard) to escape.
▶In an emergency (e.g. filter ruptured), switch the vacuum cleaner off, unplug the supply cord from the
power outlet and have the vacuum cleaner checked by a trained and qualified person before further use.
CAUTION
Risk of injury presented by the appliance running away out of control. The vacuum cleaner may run
away out of control if the wheel brakes are not engaged.
▶Engage the wheel brakes so that the vacuum cleaner stands securely.
7.1 Setting the hose diameter
1. For vacuuming up dry, non-flammable dust which has an exposure limit value, or when vacuuming up
wood shavings, adjust the hose diameter setting switch to the correct diameter setting for the suction
hose used.
2. Change the setting for the hose diameter, and consequently the threshold for the acoustic warning, by
repeatedly pressing the button.
7.2 Operation without use of the electric tool power outlet
1. Check that the switch on the appliance is in the “OFF” position off before plugging the supply cord into
a power outlet.
2. Plug the vacuum cleaner’s supply cord into the power outlet.
3. Turn the control switch to the “ON” position.
7.3 Operation with use of the power outlet on the appliance
The power outlet on the appliance is to be used only for powering electric tools directly from the
vacuum cleaner.
The operating instructions and safety instructions for the electric tool plugged into the power outlet on
the vacuum cleaner must be observed.
1. Unplug the vacuum cleaner’s supply cord from the power outlet.
2. Check that the maximum power drawn by the electric tool is below the maximum permissible output of
the power outlet on the vacuum cleaner (please refer to the “Technical data” section of the operating
instructions and information printed at the power outlet on the appliance).
3. Check to ensure that the electric tool is switched off before plugging its supply cord into the power outlet.
4. Plug the electric tool’s supply cord into the power outlet on the vacuum cleaner.
5. Plug the vacuum cleaner’s supply cord into the power outlet.
6. Turn the control switch to the “Auto” position.
7. Switch on the power tool.
The vacuum cleaner will continue to run for a short time after switching off the electric tool in order
to ensure that all dust is removed from the suction hose.
7.4 Picking up dry dust
Before picking up dry dust, especially dust from mineral materials, always check to ensure that the
correct dust bag is fitted in the container. The material picked up by the vacuum cleaner can then be
disposed of cleanly and easily.

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CAUTION
Risk of injury by dusts that are hazardous to health! Hazardous material that has been vacuumed up can
escape if a filter element is not used.
▶Use the vacuum cleaner only with a filter element installed.
▶Check that the filter element is dry and that the correct type of dust bag is fitted.
7.5 Vacuuming up liquids
CAUTION
Risk of injury by dusts that are hazardous to health! Hazardous material that has been vacuumed up can
escape if a filter element is not used.
▶Use the vacuum cleaner only with a filter element installed.
1. Check the container level monitoring system. → page 15
2. If possible, use a separate filter element for wet applications.
For information about suitable filters, consult the instructions for use for accessories → page 9.
3. After vacuuming up liquids, open the two catches.
4. Lift the suction head off the waste material container and place it on a level surface so that the filter
element can dry.
5. Empty the waste material container and use a water hose to rinse it out. Use a brush to clean the
electrodes and clean the filter element, after allowing it to dry, by wiping it off with your hand.
6. Allow the waste material container to dry.
7.6 After use of the vacuum cleaner
1. Switch off the electric tool.
2. Turn the vacuum cleaner control switch to the “OFF” position.
3. Unplug the vacuum cleaner’s supply cord from the power outlet.
4. Coil up the supply cord and hang it on the hook.
5. Empty the container and clean the appliance by wiping it with a damp cloth.
6. Coil up the suction hose.
7. Store the vacuum cleaner in a secure, dry place where it is inaccessible to unauthorized users.
7.7 Emptying dry dust from the waste material container
1. Disconnect the supply cord plug from the power outlet.
2. Open the 2 catches.
3. Lift the suction head off the waste material container and place it on a level surface.
4. Empty the waste material container:
VC 20L-X
VC 40L-X
▶Hold the waste material container by the grip recesses provided and empty it by tipping out the
contents, or remove the dust bag.
VC 20M-X
VC 40M-X
▶M-class vacuum cleaners: Remove the dust bag from the waste material container.
Always use a dust bag when working with the H-class vacuum cleaner.
5. Then fit the suction head on to the waste material container and close the 2 catches.
7.8 Emptying the waste material container when no dust bag is fitted (picking up liquids)
1. Disconnect the supply cord plug from the power outlet.
2. Lift the suction head off the waste material container and place it on a level surface.
3. Open the 2 catches.

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4. Hold the waste material container by the grip recesses provided and empty it by tipping out the contents.
5. Clean the edge of the waste material container with a cloth.
6. Fit the suction head on to the waste material container and close the two catches.
7.9 Using overcurrent protection circuit-breaker 4
Only for the Australia and New Zealand markets
The fuse protects the electric tool power outlet from current spikes. If the fuse trips, the overcurrent
protection circuit-breaker (white) appears underneath the transparent cover. To keep the fuse from
tripping again, rectify the cause of the problem (e.g. disconnect the electrical device from the electric
tool power outlet).
▶To restore the AC supply to the electrical device connected to the power outlet, press the overcurrent
protection circuit-breaker.
8 Care and maintenance
8.1 Care of the vacuum cleaner
WARNING
Electric shock hazard! Improper repairs to electrical parts can lead to serious injuries due to electric shock.
▶Electrical parts may be repaired only by trained electrical specialists.
▶Keep the vacuum cleaner, especially its grip surfaces, clean and free from oil and grease. Do not use
cleaning agents containing silicone.
▶Never operate the vacuum cleaner when the air vents are blocked! Clean the air vents carefully using a
dry brush. Do not allow foreign objects to enter the interior of the vacuum cleaner.
▶Clean the outer surfaces with a slightly damp cloth at regular intervals. Do not use a spray system,
pressure jet washer or running water for cleaning as this could negatively affect the electrical safety of
the vacuum cleaner.
L- and M-class vacuum cleaners:
Handling of the vacuum cleaner for cleaning and maintenance must be such that maintenance personnel
and others are not endangered.
▶Use filtered forced ventilation.
▶Wear personal protective equipment.
▶Clean the maintenance area in a way that prevents hazardous substances escaping into the surrounding
environment.
▶Before removing the vacuum cleaner from the area contaminated with hazardous substances, use the
vacuum cleaner to vacuum its own exterior clean, wipe it clean or place the vacuum cleaner in a sealed
bag or container. This will help to avoid distribution of the hazardous dust deposited on it.
▶When maintenance or repairs are carried out, all contaminated parts which cannot be satisfactorily
cleaned must be packed in impermeable bags and disposed of in compliance with the applicable
disposal regulations.
▶The vacuum cleaner must be subjected to a technical inspection by Hilti Service or a trained person at
least once a year to check, for example, for damage to the filter, air leakage of the vacuum cleaner, and
to ensure correct operation of the controls.
8.2 Filter cleaning
Do not attempt to clean the filter element by knocking it against a hard object and do not use pointed
instruments. This will reduce the life of the filter element.
Do not use compressed air to clean the filter element. This may cause tears in the filter material.
The condition of the filter element deteriorates with use.
▶Replace the filter element at least every six months.
▶However, if used intensively, the filter element should be replaced more often.