Nilfisk VHS110 Z22 Manual De Instrucciones página 25

Static electricity can cause sparks, with the consequent risk of
explosion! For this reason, make sure the electrical socket and
plug are properly connected to earth.
Using an ohmmeter, check the electrical continuity:
1. between the inlet and end of the vacuuming accessories
the resistance detected must be less than 100MΩ (10
2. between the collection container and on the power cable
grounding wire.
In this case the measured resistance must be:
- less than 10 Ω if the components are made of stainless
steel (the possible connection points of the electrodes are
handles, inlets and wheel supports)
- less than 10 Ω in the case of plastic container type
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Safe Pack (the connection point of the electrodes is on the
inlet)
Check the integrity and continuity of the ground and
equipotential cables (green-yellow protective conductors).
Check for loose electrical or mechanical connections.
The machine must be turned off before connecting it to an
energy source. Connect the machine to an energy source
outside the ATEX Zone (unclassified zone). If the machine has
an ATEX electrical plug certified for the area it is used in, it can
be connected to an ATEX certified socket in the same type of
zone with the same rating, after the machine has been turned
off.
During operation:
When replacing the filter, only install original Nilfisk antistatic
filters.
Do not use insulating couplings or dust collection hoses.
Do not remove hoses during operation, always wait until the
machine has stopped.
Do not use plastic bags for the container. Only Nilfisk original
antistatic plastic bags are allowed.
If a pre-separator must be used, check that it is well grounded.
Only use antistatic hoses, both for vacuuming and connecting
the pre-separator. Do not use the machine to collect large
objects or particles because their collision may cause sparks.
Do not rub or hit the floor with steel tools, as they can produce
sparks under friction. Only use collectors and suction caps that
can be replaced with original Nilfisk antistatic spare parts to
clean the floor.
Check the vacuum indicator periodically. This indication is
related to the filter clogging level, therefore to the flow speed in
hoses. Too slow a speed can cause dangerous stagnation of
material in the hose itself.
To avoid changing the classification of the work area, the
container must be emptied outside the zone (zone without
ATEX classification). Bring the vacuum cleaner out of the ATEX
classified area, then release the container and empty it. In
the case of non-observance of the above, the Declaration of
Conformity is void.
Any accumulation of dust on the machine could
represent a potential source of ignition. Clean the
surface of the machine regularly.
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8
Specific maintenance and other precautions
Always perform the service operations and checks described in
the Instructions Manual.
Check regularly, and in particular while emptying the dust
container, that the filters are in good condition (included the
safety metallic filter, if equipped), so as to prevent breakage,
wear, damages and/or tearing of the filter cloth, which may
result in dust dispersion and exhaust emission. This may
generate dangerous clouds. Check that the filter is intact
before using the machine as follows: vacuum fine inert dust
(e.g.: talc, chalk, scagliola...) and make sure it is not blown out
of the outlet.
Use antistatic vacuum hoses suitable for the type of material
to vacuum. The hoses should not produce sparks or create
electrostatic charges caused by the tube rubbing.
Only use original Nilfisk antistatic hoses and accessories.
The antistatic hoses must be grounded to prevent electrostatic
charges. Using an ohmmeter, check for the correct galvanic
connection (electrical continuity) between the hoses and the
accessories being used. This is to prevent the operator being
exposed to fire hazards and the risk of electric shocks.
All the machines that have the EXA acronym in the model
description, are equipped with an inlet that allows for coupling
only with Nilfisk EXA model accessories.
All EXA accessories are certified and do not have an
independent function, thus are classified as components.
They can be used only with Nilfisk industrial vacuum cleaners
or with other equipment from the same manufacturer, for their
intended use, already equipped with Ex marking and related
declaration of conformity, in compliance with the instruction
indicated in their use and maintenance manual and in those of
the equipment to which they are connected.
This correct coupling guarantees full compliance with the ATEX
Directive without requiring further checks and/or certifications.
If necessary, contact Nilfisk service centre only.
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VHS110 Z22
CAUTION!
IT
GB
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C421