Hilti VC 20?U User manual

*224936*
224936
Bedienungsanleitung de
Operating instructions en
Mode d’emploi fr
Istruzioni d’uso it
Instrukcja obsługi pl
Návod k obsluze cs
Návod na obsluhu sk
Upute za uporabu hr
Navodila za uporabo sl
Пайдалану бойынша басшылықkk
ja
zh
VC 20-U /
VC 20-UM /
VC 40-U /
VC 40-UM
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ORIGINAL OPERATING INSTRUCTIONS
VC 20‑U/ VC 20‑UM/ VC 40‑U/ VC 40‑UM wet / dry vacuum
cleaner
It is essential that the operating instructions
are read before the appliance is operated for
the first time.
Always keep these operating instructions to-
gether with the appliance.
Ensure that the operating instructions are
with the appliance when it is given to other
persons.
Contents Page
1 General information 16
2Description 17
3 Accessories 19
4 Technical data 20
5 Safety instructions 21
6Beforeuse 24
7 Operation 25
8 Care and maintenance 27
9 Troubleshooting 28
10 Disposal 29
11 Manufacturer’s warranty 30
12 EC declaration of conformity (original) 30
1These numbers refer to the illustrations. You can
find the illustrations at the beginning of the operating
instructions.
In these operating instructions, the designation “the ap-
pliance” always refers to the VC 20/40 wet/dry vacuum
cleaners. The information given in these operating in-
structions applies to all 4 versions unless explicitly stated
that it refers only to the VC 20‑UM / VC 40‑UM.
Parts, operating controls and indicators 1
@Grip
;Control switch
=Catch
%Waste material container
&Gripping areas
(Hose socket
)Hose socket cap (VC 20‑UM/ VC 40‑UM)
+Power outlet for electric tool
§Supply cord hooks
/Vacuum cleaner top section
:Filter cover
·Locking clip for filter cover
$Hose diameter setting (VC 20‑UM/ VC 40‑UM)
£Handlebar with cradle
|Cradle catch
1 General information
1.1 Safety notices and their meaning
DANGER
Draws attention to imminent danger that will lead to
seriousbodilyinjuryorfatality.
WARNING
Draws attention to a potentially dangerous situation that
could lead to serious personal injury or fatality.
CAUTION
Draws attention to a potentially dangerous situation that
could lead to slight personal injury or damage to the
equipment or other property.
NOTE
Draws attention to an instruction or other useful informa-
tion.
1.2 Explanation of the pictograms and other
information
Prohibition signs
Transport by
crane is not
permissible.
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Warning signs
General
warning
Warning:
caustic
substances
Warning:
electricity
Warning:
explosive
substances
Warning: hot
surface
Obligation signs
Wear
protective
clothing
Wear eye
protection.
Wear
protective
gloves.
Wear a hard
hat.
Wear ear
protection.
Wear safety
shoes.
Wear
respiratory
protection!
Symbols
Read the
operating
instructions
before use.
Return waste
material for
recycling.
On the appliance
WARNING: This unit contains hazardous dust. Emptying
and maintenance, including the removal of the dust bag,
mayonlybecarriedoutbysomeonewhoisfamiliar
with the unit and wearing suitable protective gear. Do
not switch on the unit until the complete filter system
has been installed and the function of the volume-flow
control has been tested.
Location of identification data on the appliance
The type designation and serial number can be found
on the type identification plate on the appliance. Make
a note of this data in your operating instructions and
always refer to it when making an enquiry to your Hilti
representative or service department.
Type:
Serial no.:
2 Description
2.1 Use of the product as directed
The VC 20/40 is a universal industrial vacuum cleaner with an effective filter cleaning system for dry dust. It is suitable
for wet and dry vacuum cleaning applications.
The appliance is suitable for collecting the slurry created by wet drilling or wet cutting operations on mineral materials
using Hilti diamond coring or Hilti diamond sawing equipment and for collecting large quantities of dry mineral dust
when working with Hilti diamond grinders and cutters, rotary hammers and dry cutting core bits.
The appliance may also be used to pick up liquid waste material.
It is suitable for picking up drilling slurry from mineral materials.
The appliance (VC 20‑UM, VC 40‑UM) is suitable for picking up dry, non-flammable dusts, liquids, wood chips or
shavings and hazardous dusts with an exposure limit value (or, respectively, with a MAK or AGW value) of ≧ 0.1 mg/m³
(dust class M). The appliance must be equipped with a suitable filter corresponding to the hazard classification of the
dusts to be picked up.
Only hazardous substances in accordance with IEC 60335-2-69 (class M) may be picked up with the VC 20‑UM or
VC 40‑UM. Picking up any other hazardous substances is not permissible.
Picking up oil or liquids with a temperature of over 60°C is not permissible.
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When picking up dusts with an exposure limit value, steps must be taken to ensure adequate air exchange in the room
if the exhaust air from the appliance is released into the room (please observe the locally applicable regulations).
The appliance must not be used to pick up materials that present a risk of explosion, glowing or burning materials,
flammable materials (exception: wood chips or shavings), aggressive dusts (e.g. magnesium or aluminium dust, etc.)
or aggressive liquids (e.g. gasoline, solvents, acids, coolants or lubricants, etc.).
Do not operate the appliance when laid on its side (always operate in upright position).
Fully loaded with the material picked up, the total weight of the VC 20 must not exceed 37 kg.
Fully loaded with the material picked up, the total weight of the VC 40 must not exceed 55 kg.
Do not stand on the appliance (do not use as a substitute for a ladder).
Do not use the appliance for continuous, stationary operation in automatic or semi-automatic systems.
The operating personnel must be instructed on how to use the appliance prior to beginning work, they must be
informed of any hazards associated with the materials to be picked up and they must be familiar with the correct
procedures for safe disposal of these materials.
Underwater use is not permissible.
Use of the appliance to clean down persons or animals is not permissible.
Use an antistatic suction hose in order to avoid electrostatic effects.
This appliance is suitable for commercial use, e.g. in hotels, schools, hospitals, factories, shops, offices and by rental
companies.
Working on materials hazardous to the health (e.g. asbestos) is not permissible.
The working environment may be as follows: construction site, workshop, renovation, conversion or new construction.
Observe the information printed in the operating instructions concerning operation, care and maintenance.
To avoid the risk of injury, use only genuine Hilti tools and accessories.
The appliance and its ancillary equipment may present hazards when used incorrectly by untrained personnel or when
used not as directed.
Modification of the appliance or tampering with its parts is not permissible.
2.2 Hose diameter settings (VC 20‑UM/ VC 40‑UM)
Hose diameter Hose diameter setting
∅15mm(220-240V) ∅15
∅21mm(110V) ∅21
∅ 27 mm (all voltages) ∅ 27
∅ 36 mm (all voltages) ∅ 36
2.3 The items supplied as standard include:
1 Appliance with filter element
1 Suction hose complete with hose connector,
hose sleeve and tapered adapter
1 PE VC 20 plastic dust bag
1PaperdustbagVC40
1 Operating instructions
2.4 Using extension cords
Use only extension cords of a type approved for the application and with conductors of adequate gauge. The appliance
may otherwise lose performance and the extension cord may overheat. Check the extension cord for damage at
regular intervals. Replace damaged extension cords.
Recommended minimum conductor cross section and max. cord length for operating the VC 20/40 in
conjunction with an electric tool plugged into the built-in power outlet:
Conductor cross section 1.5 mm² 2.5 mm² 3.5 mm²
Mains voltage 110V Not recommended 25 m Not recommended
Mains voltage 220-240 V 30 m 50 m Not recommended
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Recommended minimum cross section and max. cord length for the VC 20/40:
Conductor cross section 1.5 mm² 2.5 mm² 3.5 mm²
Mains voltage 100V Not recommended Not recommended 75 m
Mains voltage 110V 30 m 50 m Not recommended
Use only extension cords equipped with an earth conductor.
Do not use extension cords with 1.25 mm² or 2 mm² conductor cross sections.
2.5 Using extension cords outdoors
When working outdoors, use only extension cords that are approved and correspondingly marked for this application.
2.6 Using a generator or transformer
This appliance may be powered by a generator or transformer when the following conditions are fulfilled: The unit
mustprovideapoweroutputinwattsofatleasttwicethemaximumvalueprinted on the type identification plate on
the power tool or appliance. The operating voltage must remain within +5% and -15% of the rated voltage at all times,
frequency must be in the 50 – 60 Hz range and never above 65 Hz, and the unit must be equipped with automatic
voltage regulation and starting boost.
Never operate other power tools or appliances from the generator or transformer at the same time. Switching other
power tools or appliances on and off may cause undervoltage and / or overvoltage peaks, resulting in damage to the
powertoolorappliance.
2.7 Use of accessories
Accessories Type of use
PE VC 20/40 plastic dust bag Working with mineral materials, wet and dry
VC 20/ VC 40 paper dust bag Working with wood
VC 20/40 filter fleece Dry
VC 20/40 filter element Mainly dry
PES VC 20/40 filter element Wet and dry
Suction hose, 27 X 3.5m AS Specially for dry use
Suction hose, 36 mm dia., static type Wet and dry
Suction hose, 36 x 5m AS Specially for dry use
With the VC 20‑UM and the VC 40‑UM, use of one of the following accessories is mandatory: plastic dust bag, paper
dust bag or filter fleece.
3 Accessories
Spare parts, tools and accessories are available through Hilti sales channels.
Designation Item number, description
PE VC 20 plastic dust bag 203854
PE VC 40 plastic dust bag 203852
Paper dust bag VC 20 203858
Paper dust bag VC 40 203856
VC 20 filter fleece 203859
VC 40 filter fleece 203857
VC 20/40 filter element 203862
PES VC 20/40 filter element 203863
Suction hose, 27 mm dia., length 3.5 m 203865
Suction hose, 36 mm dia., static type 203866
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Designation Item number, description
Suction hose, 36 mm dia., length 5 m 203867
Accessory set 203868, 1 bend, 2 extension tubes, 1 floor nozzle with
lamellar lips and 1 set of brushes
Hose connector
Tapered adapter 203878
Handlebar (VC 40) 203870
Handlebar for DPC 20 (only VC 40) 203871
4 Technical data
Right of technical changes reserved.
Rated voltage 100 V 110 V 110 V 200 V
Rated power input 1,200 W 1,100 W 1,100 W 950 W
Maximum load on built-in
power outlet for electric tools
(if fitted)
1,600 W
Mains connection (type) VCTF 3 x 2,0 mm² A07 QQ‑F
3/ 12 AWG
H07 BQ‑F
3G 1.5 mm²
VCTF3x2,0mm²
Rated voltage 220 - 240 V 220-240V(CH) 220-240V(GB) 220-240V(NZ)
Rated power input 1,200 W 1,200 W 1,200 W 1,200 W
Maximum load on built-in
power outlet for electric tools
(if fitted)
2,400 W 1,100 W 1,800 W 1,200 W
Mains connection (type) H07 RN‑F 3G 1.5
mm²
H07 RN‑F 3G 1.5
mm²
H07 RN‑F 3G 1.5
mm²
H07 RN‑F 3G 1.5
mm²
Rated power input 950 W 1,100 W 1,200 W
Max. air flow rate,
VC 20‑U / VC 40‑U
55 l/s 61 l/s 61 l/s
Max. air flow rate,
VC 20‑UM / VC 40‑UM
135 m³/h 145 m³/h
Max. vacuum, C 20‑U / VC 40‑U 19,500 Pa 23,000 Pa 23,000 Pa
Max. vacuum,
C 20‑UM / VC 40‑UM
18,500 Pa 22,000 Pa
Appliance VC 20‑U/ VC 20‑UM VC 40‑U/ VC 40‑UM
Mains frequency 50…60 Hz 50…60 Hz
Weight in accordance with EPTA
procedure 01/2003
12.9 kg/ 13.0 kg 14.6 kg/ 14.7 kg
Dimensions (L x W x H) 505 mm x 380 mm x 500 mm 505 mm x 380 mm x 610 mm
Supply cord 7.5 m 7.5 m
Container capacity 21 l 36 l
Effective dust capacity 23 kg 40 kg
Effective water capacity 13.5 l 25 l
Suction hose diameter (rotary con-
nector at nozzle end; connector at
vacuum cleaner end)
Length 5 m: 36 mm
Length 3.5 m: 27 mm
Length 5 m: 36 mm
Length 3.5 m: 27 mm
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Appliance VC 20‑U/ VC 20‑UM VC 40‑U/ VC 40‑UM
Air temperature -10…+40°C -10…+40°C
Automatic filter cleaning approx.
every
15 s 15 s
Information about the appliance and its applications
Protection class Protection class I
Protection class IP X4 protection against sprayed water
Noise and vibration information (measured in accordance with EN 60335-2-69):
Typical A-weighted emission sound pressure level 71 dB (A)
Uncertainty for the given sound level 2.5 dB (A)
Triaxial vibration value (vibration vector sum) < 2.5 m/s²
Uncertainty (K) is taken into account in the vibration value
5 Safety instructions
5.1 Basic information concerning safety
a) In addition to the information relevant to safety
given in each of the sections of these operating
instructions, the following points must be strictly
observed at all times.
b) Read all instructions! Failure to follow all instruc-
tions listed below may result in electric shock, fire
and/or serious injury.
c) Before use of the appliance together with a power
tool, the operating instructions for the power tool
must be read carefully and all safety instructions
observed.
5.2 Requirements to be met by users
a) Stay alert, watch what you are doing and use
common sense when operating the appliance.
Do not use the appliance while tired or under
the influence of drugs, alcohol or medication. A
moment of inattention while operating appliances
may result in serious personal injury.
b) Dress properly. Do not wear loose clothing or
jewellery. Keep your hair, clothing and gloves
away from moving parts. Loose clothes, jewellery
or long hair can be caught in moving parts.
c) Use safety equipment. Always wear eye protec-
tion. Depending on the purpose for which the electric
appliance is to be used, wearing safety equipment
such as a dust mask, non-skid safety shoes, hard
hat, or hearing protection will reduce the risk of injury.
d) If devices are provided for the connection of dust
extraction and collection facilities, ensure these
are connected and properly used. Use of dust
collection can reduce dust-related hazards.
e) The machine is intended for professional use.
f) The machine may be operated, serviced and re-
paired only by authorized, trained personnel. This
personnel must be informed of any special haz-
ards that may be encountered.
g) Use extra care when cleaning on stairs.
h) Do not put any object into openings. Do not use
with any opening blocked; keep free of dust, lint,
hair, and anything that may reduce air flow.
5.3 Proper organization of the work area
a) Ensure that the workplace is well lit.
b) Ensure that the workplace is well ventilated. Ex-
posure to dust at a poorly ventilated workplace may
result in damage to the health.
c) Keep the workplace tidy. Objects which could
cause injury should be removed from the work-
ing area. Untidiness at the workplace can lead to
accidents.
d) Store appliances out of reach of children when not
n use. Do not allow persons unfamiliar with the
appliance or these instructions to operate it. Ap-
pliances are dangerous when used by inexperienced
persons or persons with limited physical, sensory or
mental abilities.
e) Keep children and other persons away from the
area while the appliance is in use. Distractions can
cause you to lose control.
f) Do not operate the appliance in explosive atmo-
spheres, such as in the presence of flammable
liquids, gases or dust. Electric appliances cause
sparks which may ignite the dust or fumes.
g) Do not allow other persons to touch the appliance
or the extension cord.
h) Avoid unusual body positions. Make sure you
work from a safe stance and stay in balance at all
times.
i) Wear non-skid shoes.
j) Always lead the supply cord, the extension cord
and the suction hose away to the rear when work-
ing. This will help to prevent tripping while working.
k) After finishing the work, always tidy up and stow
the supply cord, extension cord and suction hose
away securely. This will reduce the risk of tripping
and falling.
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l) Do not transport the appliance by crane.
m) Check to ensure that the appliance is switched
off before plugging the supply cord into a power
outlet.
5.4 General safety rules
a) Usetherightapplianceforthejob.Donotuse
the appliance for purposes for which it was not
intended. Use it only as directed and when in
faultless condition.
b) Never leave the appliance unattended.
c) Take the influences of the surrounding area into
account. Do not use the appliance where there is
ariskoffireofexplosion.
d) Protect the appliance from frost.
e) CAUTION - 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.
f) With vacuum cleaners of the class M, take care
to ensure that the hose socket cap is fitted when
the appliance is transported or not in use.
g) 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.
h) Switch the appliance off before transporting it.
i) Check the appliance and its accessories for any
damage. Guards, safety devices and any slightly
damaged parts must be checked carefully to en-
sure that they function faultlessly and as inten-
ded. Check that moving parts function correctly
without sticking and that no parts are damaged.
All parts must be fitted correctly and fulfill all
conditions necessary for correct operation of the
appliance. Damaged guards, safety devices and
other parts must be repaired or replaced properly
at an authorized service center unless otherwise
indicated in the operating instructions.
j) Check that the filter is seated correctly. Check to
ensure that the filter is undamaged.
k) Have your appliance serviced by a qualified repair
person using only identical replacement parts.
This will ensure that the safety of the appliance is
maintained.
l) Disconnect the plug from the power source before
making any adjustments, changing accessories,
or storing the appliance. Such preventive safety
measures reduce the risk of starting the appliance
accidentally.
m) Use the appliance and its accessories etc. in ac-
cordance with these instructions and in the man-
ner intended for the particular type of appliance,
taking into account the working conditions and
theworktobeperformed.Use of appliances for
applications different from those intended could res-
ult in a hazardous situation.
n) Do not pull the wheels of the vacuum cleaner over
the supply cord.
o) The water level limiting device must be cleaned
regularly with a brush in accordance with instruc-
tions and checked for signs of damage.
5.5 Mechanical
a) Follow the instructions concerning care and main-
tenance.
b) Maintain the machine carefully. Check for mis-
alignment or binding of moving parts, breakage
of parts and any other condition that may affect
the machine’s operation. If damaged, have the
machine repaired before use. Poor maintenance of
electric appliances is the cause of many accidents.
5.6 Electrical
a) The appliance’s supply cord plug must match the
outlet. Never modify the plug in any way. Do not
use any adapter plugs with earthed (grounded)
appliances. Unmodified plugs and matching outlets
will reduce risk of electric shock.
b) Insert the plug in a suitable earthed/grounded
power outlet which has been correctly and safely
installed and is in compliance with local regula-
tions.
c) If you are in doubt about the effectiveness of the
power outlet’s earth/ground connection, have it
checked by a qualified specialist.
d) Avoid body contact with earthed or grounded
surfaces, such as pipes, radiators, ranges and
refrigerators. There is an increased risk of electric
shock if your body is earthed or grounded.
e) Do not expose appliances to rain or wet condi-
tions. Water entering an appliance will increase the
risk of electric shock.
f) Check the appliance’s supply cord at regular in-
tervals and have it replaced at a Hilti service
center if damage is found. Check extension cords
at regular intervals and replace them if damage is
found.
g) Check the condition of the appliance and its ac-
cessories. Do not operate the appliance and its
accessories if damage is found, if the appliance is
incomplete or if its controls cannot be operated
faultlessly.
h) 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.
i) The electric supply cord may be replaced only
with a cord of the type specified in the operating
instructions.
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j) Damaged or faulty switches must be replaced at
a Hilti service center. Do not use the appliance if
it cannot be switched on and/or off correctly.
k) Have the appliance repaired only by a trained elec-
trical specialist (Hilti service center) using genuine
Hilti spare parts. Failure to observe this point may
result in risk of accident to the user.
l) Do not abuse the cord. Never use the cord for car-
rying, pulling or unplugging the appliance. Keep
the cord away from heat, oil, sharp edges or mov-
ing parts. Damaged or entangled cords increase the
risk of electric shock.
m) When operating an electric appliance outdoors,
use only extension cords of a type suitable for
outdoor use. Use of a cord suitable for outdoor use
reduces the risk of electric shock.
n) In case of an interruption in the electric supply:
Switch the appliance off and unplug the supply
cord.
o) Avoid using extension cords with multiple power
outlets and the simultaneous use of several ap-
pliances connected to one extension cord.
p) Use the electric tool power outlet only for the
purposes described in the operating instructions.
q) Never spray the top section of the vacuum cleaner
with water: this presents an electrical hazard and
may damage the appliance.
r) Connectors on mains power cables, extension
cords or supply cords must provide protection
from sprayed water.
s) Grip the plug when unplugging the supply cord
(do not pull or tug at the supply cord).
t) Never pull the vacuum cleaner by the supply cord
to a new working position.
u) Never operate the appliance when it is dirty or
wet. Dust (especially dust from conductive ma-
terials) 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 at a Hilti service center
at regular intervals, especially if used frequently
for working on conductive materials.
v) Check to ensure that the supply cord does not lie
inapuddleofwater.
w) Do not use the power outlet or accessories when
the hands are wet.
5.7 Material picked up
a) Donotusetheappliancetopickupflammable
or explosive dusts (magnesium or aluminium dust
etc.) or dusts which present a health hazard.
b) A vacuum cleaner of the dust class M is suitable for
picking up dry, non-flammable dusts, wood chips or
shavings and hazardous substances with an expos-
ure limit value of ≧0.1mg/m³. The vacuum cleaner
must be equipped with a filter suitable for the
hazard classification of the dusts to be picked up.
c) Do not use the appliance to pick up flammable,
explosive or aggressive liquids (coolants and lub-
ricants, gasoline, solvents, acids (pH<5), alkalis
(pH>12.5) etc.)
d) Switch the appliance off immediately if foam or
liquids escape from it.
e) Avoid contact with alkaline or acidic liquids. If
contact accidentally occurs, flush 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.
f) Wear protective gloves when using the vacuum
cleaner to pick up hot materials with a max. tem-
perature of 60°C.
g) Do not pick up objects or materials that could
cause injury by piercing through the dust bag
(e.g. pointed or sharp objects).
5.8 Thermal
Do not use the vacuum cleaner to pick up hot mater-
ials with a temperature of over 60°C (glowing cigar-
ettes, hot ash, etc.).
5.9 Personal protective equipment
a) The user and any other persons in the vicinity
must wear suitable eye protection, a hard hat,
ear protection, protective gloves, safety footwear
and respiratory protection while the appliance is
in use or during servicing.
b) When working with mineral drilling slurry, wear
protective clothing and avoid skin contact with
the slurry (pH>9: caustic).
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6Beforeuse
CAUTION
The mains voltage must comply with the specification
given on the type identification plate. Ensure that the
appliance is disconnected from the electric supply.
DANGER
Connect the appliance only to properly
earthed/grounded power sources.
CAUTION
Always check to ensure that the vacuum cleaner is
standing securely. Engage the castor brakes.
CAUTION
When fitting the top section of the vacuum cleaner,
take care to avoid pinching your fingers or damaging
the supply cord.
6.1 Use of extension cords and generators or
transformers
See section “Description / use of extension cords”.
6.2 Operating the appliance for the first time 2
1. Open the two catches.
2. Lift the vacuum cleaner top section away from the
waste material container.
3. Remove the accessories and packaging from the
waste material container.
NOTE Use the class M version for picking up dusts
with an exposure limit value of ≧ 0.1 mg/m³. Fit a
filter fleece or plastic dust bag for mineral dust or a
paperdustbagforwoodchipsorshavingsinthe
container in accordance with the instructions.
NOTE When used to pick up harmless dusts: Fit a
plastic dust bag in the container in accordance with
the instructions (see printed instructions).
4. Fit the vacuum cleaner top section onto the waste
material container.
5. Close the two catches.
6. Check to ensure that the vacuum cleaner top section
is fitted correctly and secured.
7. Connect the suction hose to the appliance.
6.2.1 Fitting a paper dust bag for picking up wood
chips or shavings 3
1. Open the two catches.
2. Lift the vacuum cleaner top section away from the
waste material container.
3. Place the new paper dust bag in the waste material
container.
4. Fit the vacuum cleaner top section onto the waste
material container.
5. Close the two catches.
6. Check to ensure that the vacuum cleaner top section
is fitted correctly and secured.
7. Connect the suction hose to the appliance.
6.3 Power conditioner
CAUTION
When placing the power conditioner in the cradle
check that the power outlet faces upwards and the
spring catch engages.
CAUTION
To avoid injury, remove the power conditioner and any
loose accessories from their attachment points be-
fore emptying the container and before transporting
the vacuum cleaner.
6.4 Transport
DANGER
With vacuum cleaners of the class M, take care to
ensure that the hose socket cap is fitted when the
appliance is transported or not in use.
DANGER
The appliance may be moved or transported only
when the motor has come to a complete stop.
Do not carry the appliance when it is full of waste material.
Empty the appliance before carrying it to another location.
Do not tip the appliance or lay it on its side for transport
after using it to collect water.
The tapered adapter can be used to connect both ends
of the hose together for transport.
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7Operation
WARNING
For vacuum cleaners of the class M, please note: Va-
cuum off the outer surfaces of the appliance, wipe
it clean or seal it in a suitable container or mater-
ial before removing it from an area contaminated
with hazardous substances. All parts of the appliance
must be regarded as being contaminated when they
are removed from the hazardous area and suitable
measures must be taken to avoid spreading dust.
WARNING
In an emergency (e.g. burst filter), switch the appli-
ance off, disconnect it from the electric supply and
have it checked by a trained specialist before further
use.
CAUTION
For vacuum cleaners of the class M, please note: CAU-
TION: This appliance contains harmful dust. The va-
cuum cleaner may be emptied (including disposal of
the dust container) or serviced only by trained per-
sons wearing the appropriate protective equipment.
Do not operate the appliance if the filter system is
incomplete.
CAUTION
Always check to ensure that the vacuum cleaner is
standing securely. Engage the castor brakes.
7.1 Hose diameter setting (VC 20‑UM/ VC 40‑UM)
When picking up dry, non flammable dust which has an
exposure limit value, or when picking up wood chips or
shavings, adjust the hose diameter setting switch to the
correct diameter setting for the suction hose used. When
using the appliance in conjunction with the Hilti hollow
drill bit system, set it to the smallest hose diameter.
See section: 2.2 Hose diameter settings
(VC20‑UM/VC40‑UM)
7.2 Operation without use of the electric tool
power outlet
NOTE
Check that the appliance is switched off before plugging
it into the power outlet (control switch in the “OFF”
position).
1. Plug the supply cord into the power outlet.
2. Turn the control switch to the “ON” position.
7.3 Operation with use of the electric tool power
outlet
DANGER
The power outlet is to be used only to connect electric
tools directly to the vacuum cleaner.
NOTE
Check that the electric tool is switched off before plugging
it into the power outlet on the vacuum cleaner.
NOTE
The operating instructions and safety instructions for the
electric tool plugged into the power outlet on the vacuum
cleaner must be observed.
NOTE
Check to ensure 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 on the power outlet).
1. Disconnect the power tool supply cord plug from
the power outlet.
2. Plug the electric tool’s supply cord into the power
outlet on the vacuum cleaner.
3. Plug the vacuum cleaner’s supply cord into the
power outlet.
4. Turn the control switch to the “AUTO” position.
5. Switch on the electric tool.
NOTE 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
NOTE
Before using the appliance to pick up dry dust, especially
dust from mineral materials, always check to ensure
that the correct dust bag (Hilti accessory) is fitted in the
container. The material collected can then be disposed
of cleanly and easily.
CAUTION
The material collected must be disposed of in accord-
ance with the applicable regulations.
CAUTION
Never use the appliance without a filter element.
CAUTION
When fitting the top section of the vacuum cleaner,
take care to avoid pinching your fingers or damaging
the supply cord.
Check to ensure that the filter element is dry. A damp
filter element will quickly become clogged when dry dust
is picked up with the appliance. For this reason, replace
the filter element with a dry filter element before using the
appliance to pick up dry dust.
7.4.1 Changing the paper dust bag / filter fleece
DANGER
Check that the bag has not been pierced through by
objects which may cause injury.
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CAUTION
The material collected must be disposed of in accord-
ance with the applicable regulations.
1. Disconnect the supply cord plug from the power
outlet.
2. Open the two catches.
3. Lift the vacuum cleaner top section away from the
waste material container.
4. Carefully remove the paper dust bag collar from the
adapter and remove the filter fleece.
5. Closetheslideratthedustbagcollar(placethe
cover over the filter fleece).
6. Clean the waste material container with a cloth.
7. Fit a new dust bag / filter fleece in the waste material
container.
8. Fit the vacuum cleaner top section onto the waste
material container.
9. Close the two catches.
7.4.2 Changing the plastic dust bag 4
CAUTION
The material collected must be disposed of in accord-
ance with the applicable regulations.
1. Disconnect the supply cord plug from the power
outlet.
2. Open the two catches.
3. Lift the vacuum cleaner top section away from the
waste material container.
4. Useacabletietoclosetheplasticdustbagbelow
the punched holes.
5. Remove the plastic dust bag.
6. Clean the waste material container with a cloth.
7. Fit a new plastic dust bag (see instructions printed
on it) in the waste material container.
8. Fit the vacuum cleaner top section onto the waste
material container.
9. Close the two catches.
7.5 Picking up liquids
CAUTION
Never use the appliance without a filter element.
7.5.1 Before picking up liquids
1. Remove the dust bag from the waste material con-
tainer.
2. Check to ensure that the electrodes of the level
monitoring system are clean. Clean them with a
brush if necessary.
7.5.2 When picking up liquids
If possible, use a separate filter element for wet applica-
tions.
NOTE
If possible, use a Hilti PES filter element.
If foaming occurs, switch the appliance off immediately
and empty the container.
The appliance switches itself off automatically when the
liquid in the container reaches the maximum level.
7.5.3 After picking up liquids 5
1. Open the two catches.
2. Lift the vacuum cleaner top section away from the
waste material container.
3. Empty the container and clean it out by hosing it
down with water, clean the electrodes with a brush
and clean the filter element by wiping it with the
hand after first allowing it to dry.
4. Leave the vacuum cleaner top section and the con-
tainer standing separately so that the container can
dry.
7.6Audiblesignal(VC20‑UM/VC40‑UM)
For safety reasons, an audible warning signal is emitted
when the air speed in the hose drops below 20 m/s.
Please refer to the “Troubleshooting” section for possible
causes of this problem.
7.7 After finishing work
1. Switch off the electric tool.
2. Turn the control switch to the “OFF” position.
3. Disconnect the supply cord plug 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 appliance in a secure, dry place where it
is inaccessible to unauthorized users.
7.8 Emptying the waste material container
CAUTION
To avoid injury, remove the power conditioner and any
loose accessories from their attachment points be-
fore emptying the container and before transporting
the vacuum cleaner.
7.8.1 Emptying dry dust from the waste material
container
7.8.1.1 Before emptying the waste material
container, proceed as follows:
1. Disconnect the supply cord plug from the power
outlet.
2. Lift the vacuum cleaner top section away from the
waste material container and place it on a level
surface.
7.8.1.2 After emptying the waste material
container, proceed as follows:
CAUTION
When fitting the top section of the vacuum cleaner,
take care to avoid pinching your fingers or damaging
the supply cord.
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Fit the vacuum cleaner top section onto the waste ma-
terial container and close the two catches.
7.8.2 Emptying the waste material container when
no dust bag is fitted (collecting liquids)
NOTE
The material collected must be disposed of in accordance
with the applicable regulations.
1. Hold the container by the grip areas provided and
tip it over to empty out its contents.
2. Clean the edge of the waste material container with
adampcloth.
8 Care and maintenance
CAUTION
For vacuum cleaners of the class M, please note: CAU-
TION: This appliance contains harmful dust. The va-
cuum cleaner may be emptied (including disposal of
the dust container) or serviced only by trained per-
sons wearing the appropriate protective equipment.
Do not operate the appliance if the filter system is
incomplete.
8.1 Automatic filter element cleaning
NOTE
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.
NOTE
Do not use compressed air to clean the filter element.
This may cause tears in the filter material.
NOTE
The condition of the filter will deteriorate with use. It
should be replaced at least every 6 months and more
frequently if the appliance is subject to heavy use.
The appliance is equipped with a filter cleaning system
which removes most of the dust adhering to the filter
element.
The filter element is cleaned automatically by a blast of
air (a pulsating noise is heard).
NOTE
The filter element cleaning system functions only when a
suction hose is connected.
8.2 Changing the filter element
CAUTION
Never use the appliance without a filter element.
8.2.1 Removing the filter element 6
1. Disconnect the supply cord plug from the power
outlet.
2. Open the filter cover catches.
3. Open the filter cover.
4. Carefully remove the filter element, gripping it at the
areas provided in the holder.
8.2.2 Fitting the filter element 7
1. Clean the sealing surface with a cloth.
2. Fit the new filter element.
3. Close the filter cover by pivoting the cover catch
forward.
4. Close the filter cover catches.
8.3 Opening the appliance for checking
1. Engage the castor brakes.
2. Disconnect the supply cord plug from the power
outlet.
3. Open the two catches.
4. Lift the vacuum cleaner top section away from the
waste material container and place it on a level
surface.
8.4 Checking the waste material level
Check the cut-out contacts and clean them with a brush
if necessary (if dirty).
8.5 Closing the appliance
CAUTION
When fitting the top section of the vacuum cleaner,
take care to avoid pinching your fingers or damaging
the supply cord.
1. Check the seal at the vacuum cleaner top section
and also clean this with a cloth.
2. Fit the vacuum cleaner top section onto the waste
material container.
3. Close the two catches.
8.6 Care of the appliance
CAUTION
Disconnect the supply cord plug from the power out-
let.
Never operate the appliance when the ventilation slots
are blocked. Clean the ventilation slots carefully using a
dry brush. Clean the outside of the appliance at regular
intervals with a cloth. Do not use a spray, high-pressure
water-jet system, steam pressure cleaning equipment or
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running water for cleaning. This may negatively affect the
electrical safety of the appliance. Always keep the grip
surfaces of the appliance free from oil and grease. Do not
use cleaning agents which contain silicone.
For vacuum cleaners of the class M, please note: The
appliance must be handled for cleaning and maintenance
in a way that avoids exposing maintenance personnel
and other persons to any hazards. Use filtered forced
ventilation. Wear personal protective equipment. Clean
the maintenance area in a way that prevents hazardous
substances escaping into the surrounding environment.
Vacuum off the outer surfaces of the appliance, wipe it
clean or seal it in suitable container or material before
removing it from an area contaminated with hazardous
substances. This will help to avoid distribution of the
hazardous dust deposited on it.
When maintenance or repairs are carried out, all con-
taminated parts which cannot be satisfactorily cleaned
must be packed in impermeable bags and disposed of in
compliance with the applicable disposal regulations.
A vacuum cleaner of the class M 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, and to ensure correct operation of
controlling devices.
8.7 Maintenance
WARNING
Repairs to the electrical section of the appliance may
be carried out only by trained electrical specialists.
Check all external parts of the appliance for damage
at regular intervals and check that all controls operate
faultlessly. Do not operate the appliance if parts are
damaged or when the controls do not function faultlessly.
If necessary, the appliance should be repaired by Hilti
Service.
8.8 Checking the appliance after care and
maintenance
After carrying out cleaning and maintenance, check that
the vacuum cleaner has been correctly reassembled and
that it operates faultlessly.
Test each of the functions.
9 Troubleshooting
Fault Possible cause Remedy
The audible warning signal
is emitted (reduced suction
power) (VC 20‑UM/ VC 40‑UM).
The dust bag is full. Change the dust bag.
See section: 7.4.2 Changing the
plastic dust bag 4
See section: 7.4.1 Changing the pa-
per dust bag / filter fleece
The filter element is clogged with dirt
or dust.
Change the filter element if neces-
sary.
See section: 8.2 Changing the filter
element
Blockage in the hose, vacuum cleaner
or power tool dust hood.
Clean the hose and dust hood.
The hose diameter setting is incor-
rect.
See section: 7.1 Hose diameter set-
ting (VC 20‑UM/ VC 40‑UM)
Dust is blown out of the appli-
ance.
The filter element is not fitted cor-
rectly.
Remove the filter element and refit it
correctly.
The filter element is damaged. Fit a new filter element.
The filter seal is damaged. Fit a new filter element.
The appliance switches itself off
or on inadvertently or the user
receives electric shocks (static
discharge).
Electrostatic charge is not dissipated
correctly; the appliance is connected
to an unearthed/ungrounded power
outlet.
Connect the appliance to an
earthed/grounded power outlet; use
an antistatic hose.
The appliance doesn’t start or
switches itself off after a short
time.
The water level cut-out is activated. Clean the probe and the area around
the probe with a brush.
The motor doesn’t restart. The mains circuit breaker has been
tripped.
Reset the circuit breaker. Find the
reason for the overload current if it
trips again.
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Fault Possible cause Remedy
The motor doesn’t restart. The container is full. Switch the appliance off. Empty the
container.
See section: 7.8.2 Emptying the
waste material container when no
dust bag is fitted (collecting liquids)
The motor overheating protection cut-
out has been activated.
Switch off the appliance and allow
it to cool for 5 min. If the motor still
doesn’t start, contact Hilti Service.
The motor overheating protection cut-
out switches the motor off repeatedly
as the ventilation slots are clogged.
Clean the ventilation slots carefully
with a dry brush.
The motor doesn’t run when set
to “AUTO”.
The electric tool is faulty or is not
plugged in fully.
Check the electric tool for correct op-
eration and plug it in fully.
The automatic filter element
cleaning system doesn’t work.
No suction hose is connected. Connect the suction hose.
10 Disposal
Most of the materials from which Hilti power tools or appliances are manufactured can be recycled. The materials
must be correctly separated before they can be recycled. In many countries, Hilti has already made arrangements for
taking back your old power tools or appliances for recycling. Ask Hilti customer service or your Hilti representative for
further information.
For EC countries only
Do not dispose of electrical appliances together with household waste.
In observance of the European Directive on waste electrical and electronic equipment and its implement-
ation in accordance with national law, electrical appliances and batteries that have reached the end of
their life must be collected separately and returned to an environmentally compatible recycling facility.
Disposing of drilling slurry
Disposing of drilling slurry directly into rivers, lakes or the sewerage system without suitable pretreatment presents
environmental problems. Ask the local public authorities for information about current regulations. We recommend the
following pretreatment:
1. Collect the drilling slurry (for example, using a wet-type vacuum cleaner).
2. Allow the drilling slurry to settle and dispose of the solid material at a construction waste disposal site (the
addition of a flocculent may accelerate the separation process).
3. The remaining water (alkaline, pH value greater than 7) must be neutralized by the addition of an acidic neutralizing
agent or diluted with a large volume of water before it is allowed to flow into the sewerage system.
Disposal of drilling dust
The drilling dust collected must be disposed of in accordance with the applicable national regulations.
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11 Manufacturer’s warranty
Please contact your local Hilti representative if you have
questions about the warranty conditions.
12 EC declaration of conformity (original)
Designation: Wet / dry vacuum
cleaner
Type: VC 20‑U/ VC 20‑UM/
VC 40‑U/ VC 40‑UM
Year of design: 2007
We declare, on our sole responsibility, that this product
complies with the following directives and standards:
2006/42/EC, 2004/108/EC, 2011/65/EU, EN 60335‑1,
EN 60335‑2‑69, EN ISO 12100.
Hilti Corporation, Feldkircherstrasse 100,
FL‑9494 Schaan
Paolo Luccini Johannes Wilfried Huber
Head of BA Quality and Process Man-
agement
Senior Vice President
Business Area Electric Tools & Ac-
cessories
Business Unit Diamond
01/2012 01/2012
Technical documentation filed at:
Hilti Entwicklungsgesellschaft mbH
Zulassung Elektrowerkzeuge
Hiltistrasse 6
86916 Kaufering
Deutschland
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*224936*
224936
Hilti Corporation
LI-9494 Schaan
Tel.: [phone]
Fax: [phone]
www.hilti.com
Hilti = registered trademark of Hilti Corp., Schaan
Pos. 1 | 20141127
5.962-736
Printed: 11.12.2014 | Doc-Nr: PUB / 5128810 / 000 / 05