Hilti VC 20-U Mode D'emploi page 22

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.
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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
∅ 15 mm (220 - 240 V)
∅ 21 mm (110 V)
∅ 27 mm (all voltages)
∅ 36 mm (all voltages)
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
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 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
Mains voltage 110V
Mains voltage 220-240 V
18
1.5 mm²
Not recommended
30 m
Hose diameter setting
∅ 15
∅ 21
∅ 27
∅ 36
2.5 mm²
25 m
50 m
3.5 mm²
Not recommended
Not recommended