VC 20U(M) - Vacuum Cleaner HILTI - Free user manual and instructions

USER MANUAL VC 20U(M) HILTI

Printed: 08.07.2013 | Doc-Nr: PUB / 5071294 / 000 / 02ORIGINAL OPERATING INSTRUCTIONS VC20‑U/VC20‑UM/VC40‑U/ VC 40‑UM wet / dry vacuum cleaner It is essential that the operating in-structions are read before the appli-ance is operated for the first time.Always keep these operating in-structions together with the appli-ance.Ensure that the operating instruc-tions are with the appliance when itis given to other persons.Contents Page1 General information 202 Description 213 Accessories 244 Technical data 245 Safety instructions 266Beforeuse 297Operation 308 Care and maintenance 339 Troubleshooting 3510 Disposal 3611 Manufacturer’s warranty 37 12 EC declaration of conformity (original) 37 1 These numbers refer to the corresponding illustrations. The illustrations can be found onthe fold-out cover pages. Keep these pages open while studying the operating instructions. In these operating instructions, the designation “the appliance” always refers to the VC 20/40 wet/dry vacuum cleaners. The information given in these operating instructions 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

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(VC20‑UM/VC40‑UM) Handlebar with cradle Cradle catch 1 General information

1.1 Safety notices and their meaningDANGERDraws attention to imminent danger that will

lead to serious bodily injury or fatality. WARNING Draws attention to a potentially dangerous situ- ation that could lead to serious personal injuryor fatality.CAUTION Draws attention to a potentially dangerous situ- ation that could lead to slight personal injury or damage to the equipment or other property. NOTE Draws attention to an instruction or other useful information.

explosive substances 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 re- moval of the dust bag, may only be carried out by someone who is familiar with the unit and wearing suitable protective gear. Do not switch on the unit until the complete filter sys- tem has been installed and the function of the volume-flow control has been tested. Location of identification data on the appli- ance 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 op- erating 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.

Printed: 08.07.2013 | Doc-Nr: PUB / 5071294 / 000 / 02Theappliancemayalsobeusedtopick 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 tobepickedup. 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. 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 uprightposition). 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 pickedupandthey 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 concerningoperation,careand 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.

Printed: 08.07.2013 | Doc-Nr: PUB / 5071294 / 000 / 022.3 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 1 Paper dust bag VC 40 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 loseperformanceandtheextensioncord 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 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 must provide a power output in watts of at least twice the maximum value printed on the type identification plate on the power tool or appliance. Theoperatingvoltage 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 power tool or appliance.

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

Printed: 08.07.2013 | Doc-Nr: PUB / 5071294 / 000 / 02Accessories Type of use 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 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 220… 240 V 220...240 V/

Rated power in- put 1,200 W 1,100 W 1,100 W 1,200 W 1,200 W 1,200 W

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

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 connector 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 Air temperature -10…+40°C -10…+40°C Automatic filter cleaning ap- prox. 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 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)

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 follow- ing points must be strictly observed at all times. b) Read all instructions! Failure to follow all instructions listed below may result in electric shock, fire and/or serious injury. c) Before useof 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, al- cohol or medication. A moment of inatten- tion while operating appliances may result in serious personal injury. b) Dress properly. Do not wear loose cloth- ing or jewellery. Keep your hair, cloth- ing 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 protection. 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 connec- tion of dust extraction and collection fa- cilities, 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 repaired only by authorized, trained personnel. This personnel must be in- formed of any special hazards 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 vent- ilated. Exposure to dust at a poorly ventil- ated workplace may result in damage to the health. c) Keeptheworkareatidy.Anyobjects which may cause injury should be re- moved from the 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 in- structions to operate it. Appliances are dangerous when used by inexperienced persons or persons with limited physical, sensory or mental abilities. e) Keep children and other persons away fromtheareawhiletheapplianceisin use. Distractions can cause you to lose control. f) 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. 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 exten- sion cord and the suction hose away to the rear when working. 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. l) Do not transport the appliance by crane.

Printed: 08.07.2013 | Doc-Nr: PUB / 5071294 / 000 / 02m) Check to ensure that the appliance is switched off before plugging the supply cord into a power outlet.

5.4 General safety rules

a) Use the right appliance for the job. Do not use the appliance for purposes for whichitwasnotintended.Useitonlyas 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 ap- pliance where there is a risk of fire of explosion. d) Protect the appliance from frost. e) CAUTION - Store appliances in a secure place when not in use.When not in use, ap- pliances 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 trans- ported 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) Switchtheapplianceoffbeforetrans- porting it.

i) 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 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 undam- aged. k) Have your appliance serviced by a qual- ified 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 accordance with these instruc- tions and in the manner intended for the particular type of appliance, taking into account the working conditions and the work to be performed. Use of appliances for applications different from those inten- ded could result 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 accord- ance with instructions and checked for signs of damage.

a) Follow the instructions concerning care and maintenance. b) Maintain the machine carefully. Check for misalignment 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.

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. Un- modified 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

Printed: 08.07.2013 | Doc-Nr: PUB / 5071294 / 000 / 02and is in compliance with local regulations. c) If you are in doubt about the effective- ness of the power outlet’s earth/ground connection, have it checked by a quali- fied 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 conditions. Water entering an appliance will increase the risk of electric shock. f) Check the appliance’s supply cord at regular intervals and have it replaced at a Hilti service center if damage is found. Check extension cords at regular inter- vals and replace them if found to be dam- aged. g) Check the condition of the appliance and its accessories. Do not operate the ap- pliance and its accessories if damage is found, if the appliance is incomplete or if its controls cannot be operated fault- lessly. 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 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. j) Damaged or faulty switches must be re- placed at a Hilti service center. Do not use the appliance if itcannot be switched on and/or off correctly. k) Have the appliance repaired only by a trained electrical 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 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. 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 elec- tric supply: Switch the appliance off and unplug the supply cord. o) Avoid using extension cords with mul- tiple power outlets and the simultaneous use of several appliances 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 va- cuum 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 thesupply 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 materials) or dampness ad- hering to the surface of the appliance may, under unfavorable conditions, lead to electric shock. Dirty or dusty appli- ances should thus be checked at a Hilti service center at regular intervals, espe- cially if used frequently for working on conductive materials.

v) Check to ensure that the supply cord

does not lie in a puddle of water. w) Do not use the power outlet or accessor- ies when the hands are wet.

5.7 Material picked up

a) Do not use the appliance to pick up flam- mable 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

Printed: 08.07.2013 | Doc-Nr: PUB / 5071294 / 000 / 02dusts, wood chips or shavings and hazard- oussubstanceswithanexposure 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) Donotusetheappliancetopickup flammable, explosive or aggressive li- quids (coolants and lubricants, 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. temperature 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 ob- jects).

Do not use the vacuum cleaner to pick up hot materials with a temperature of over 60°C (glowing cigarettes, hot ash, etc.).

5.9 Personal protective equipment

a) The user and any other persons in the vicinity must wear suitable eye protec- tion, a hard hat, ear protection, protect- ive gloves, safety footwear and respirat- ory 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). 6Beforeuse CAUTION The mains voltage must comply with the specification given on the type identification plate. Ensure that the appliance is discon- nected 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”. 6.2Operatingtheapplianceforthefirst time 2

1. Open the two catches.

2. Lift the vacuum cleaner top section away

from the waste material container.

Printed: 08.07.2013 | Doc-Nr: PUB / 5071294 / 000 / 023. 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 paper dust bag for wood chips or shavings in the 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

topsectionisfittedcorrectlyandsecured.

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

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

topsectionisfittedcorrectlyandsecured.

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 condi- tioner and any loose accessories from their attachment points before emptying the con- tainer and before transporting the vacuum cleaner.

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 whenthemotorhas come to a complete stop. Do not carry the appliance when it is full of waste material. Empty the appliance before carrying it to an- other 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. 7 Operation WARNING For vacuum cleaners of the class M, please note: Vacuum off the outer surfaces of the appliance, wipe it clean or seal it in a suit- able container or material before removing it from an area contaminated with hazard- ous 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 appliance 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: CAUTION: This appliance contains harmful dust. The vacuum cleaner may be emptied (including disposal of the dust

Printed: 08.07.2013 | Doc-Nr: PUB / 5071294 / 000 / 02container) or serviced only by trained persons 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

(VC20‑UM/VC40‑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. 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” posi-

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 instruc- tions for the electric tool plugged into the power outlet on the vacuum cleaner must be ob- served. NOTE Check to ensure that the maximum power drawn by the electric tool is below the max- imum permissible output of the power outlet on the vacuum cleaner (please refer to the “Tech- nical 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. Plugtheelectrictool’ssupplycordintothe

power outlet on the vacuum cleaner.

3. Plug the vacuum cleaner’s supply cord into

4. Turn the control switch to the “AUTO” po-

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 ma- terial collected can then be disposed of cleanly and easily. CAUTION The material collected must be disposed of in accordance with the applicable regula- tions. CAUTION Never use the appliance without a filter ele- ment. 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. Accordingly, before being used for picking up dry dust, the filter element should be rinsed and allowed to dry or replaced with another dry filter element.

Printed: 08.07.2013 | Doc-Nr: PUB / 5071294 / 000 / 027.4.1 Changing the paper dust bag / filter fleece DANGER Check that the bag has not been pierced through by objects which may cause injury. CAUTION The material collected must be disposed of in accordance with the applicable regula- tions.

1. Disconnect the supply cord plug from the

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 col-

lar from the adapter and remove the filter fleece.

5. Close the slider atthedust bag collar (place

the cover over the filter fleece).

6. Clean the waste material container with a

7. Fit a new dust bag / filter fleece in the waste

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 accordance with the applicable regula- tions.

1. Disconnect the supply cord plug from the

2. Open the two catches.

3. Lift the vacuum cleaner top section away

from the waste material container.

4. Use a cable tie to close the plastic dust

bag below the punched holes.

5. Remove the plastic dust bag.

6. Clean the waste material container with a

7. Fit a new plastic dust bag (see instruc-

tions 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 ele- ment.

7.5.1 Before picking up liquids

1. Remove the dust bag from the waste ma-

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 applications. 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 elec- trodes 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 container standing separately so that the container can dry.

7.6 Audible signal (VC 20‑UM/ VC 40‑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” posi-

3. Disconnect the supply cord plug from the

5. Empty the container and clean the appli-

ance 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 condi- tioner and any loose accessories from their attachment points before emptying the con- tainer and before transporting the vacuum cleaner.

material container, proceed as follows:

1. Disconnect the supply cord plug from the

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. Fit the vacuum cleaner top section onto the waste material 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 con-

tainer with a damp cloth. 8 Care and maintenance CAUTION For vacuum cleaners of the class M, please note: CAUTION: This appliance contains harmful dust. The vacuum cleaner may be emptied (including disposal of the dust container) or serviced only by trained persons 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 fil- ter 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 clean- ing 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 ele- ment.

1. Disconnect the supply cord plug from the

2. Open the filter cover catches.

3. Open the filter cover.

4. Carefully remove the filter element, grip-

ping 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

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

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 outlet. Never operate the appliance when the ventil- ation slots are blocked. Clean the ventilation slots carefully using a dry brush. Clean the out- side of the appliance at regular intervals with a cloth. Do not use a spray, high-pressure water- jet system, steam pressure cleaning equipment or running water for cleaning. This may negat- ively 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 clean- ing and maintenance in a way that avoids ex- posing maintenance personnel and other per- sons to any hazards. Use filtered forced vent- ilation. Wear personal protective equipment. Clean the maintenance area in a way that pre- vents 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 repairsare carried out, all contaminated parts which cannot be satisfact- orily 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 sub- jected 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.

WARNING Repairs to the electrical section of the ap- pliance 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 neces- sary, 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 cor-

Printed: 08.07.2013 | Doc-Nr: PUB / 5071294 / 000 / 02rectly reassembled and that it operates fault- lessly. Test each of the functions. 9 Troubleshooting Fault Possible cause Remedy The audible warning signal is emitted (reduced suction power) (VC20‑UM/VC40‑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 paper dust bag / filter fleece The filter element is clogged with dirt or dust. Change the filter element if ne- cessary. 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 and hose diameter setting don’t corres- pond. Set the switch to the correct hose diameter setting. See section: 7.1 Hose diameter setting (VC 20‑UM/ VC 40‑UM) Dust is blown out of the appliance. The filter element is not fitted correctly. Remove the filter element and refititcorrectly. 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 inadvert- ently or the user receives electric shocks (static dis- charge). Electrostatic charge is not dis- sipated correctly; the appli- ance is connected to an un- earthed/ungrounded power outlet. Connect the appliance to an earthed/grounded power out- let; use an antistatic hose. The appliance doesn’t start or switches itself off after a short time. The water level cut-out is activ- ated. 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. 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 protec- tion cut-out has been activ- ated. Switch off the appliance and allow it to cool for 5 min. If the motor still doesn’t start, con- tact Hilti Service.

Printed: 08.07.2013 | Doc-Nr: PUB / 5071294 / 000 / 02Fault Possible cause Remedy The motor doesn’t restart. The motor overheating protec- tion 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 cor- rect operation and plug it in fully. The automatic filter ele- ment 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 manufacturedcan 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 electronicequipment and its implementation 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.

Printed: 08.07.2013 | Doc-Nr: PUB / 5071294 / 000 / 0211 Manufacturer’s warranty Hilti warrants that the tool supplied is free of defects in material and workmanship. This war- ranty is valid so long as the tool is operated and handled correctly, cleaned and serviced prop- erly and in accordance with the Hilti Operating Instructions, and the technical system is main- tained. This means that only original Hilti con- sumables, components and spare parts may be used in the tool. This warranty provides the free-of-charge re- pair or replacement of defective parts only over the entire lifespan of the tool. Parts requiring repair or replacement as a result of normal wear and tear are not covered by this warranty. Additional claims are excluded, unless strin- gent national rules prohibit such exclusion. In particular, Hilti is not obligated for direct, indirect, incidental or consequential dam- ages, losses or expensesinconnectionwith, or by reason of, the use of, or inability to use the tool for any purpose. Implied warranties of merchantability or fitness for a particular purpose are specifically excluded. For repair or replacement, send the tool or related parts immediately upon discovery of the defect to the address of the local Hilti marketing organization provided. This constitutes Hilti’s entire obligation with regard to warranty and supersedes all prior or contemporaneous comments and oral or written agreements concerning warranties. 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 Management Senior Vice President Business Area Electric Tools & Accessories Business Unit Diamond 01/2012 01/2012 Technical documentation filed at: Hilti Entwicklungsgesellschaft mbH Zulassung Elektrowerkzeuge Hiltistrasse 6 86916 Kaufering Deutschland

1,200 W 1,100 W 1,100 W 1,200 W 1,200 W 1,200 W

1,600 W 2,400 W 1,100 W 1,800 W