4
4
Nilfisk
ALTO
A
Safety Issues.
Unplug the machine from it’s power supply socket when not in use and before performing any
service or maintenance work on the machine.
Before starting any service or maintenance work, be sure to read this service manual fully and
keep it close by for reference.
Be sure to observe any national safety directives and regulations before attempting to repair or
service your machine.
The machine should only be used by persons who have been instructed in its use and are au-
thorized to do so.
Repairs should only be
made by someone who
has received proper
instructions for the job
or who is a qualified
electrician.
For your own safety
ESD (Electro-Static Discharge)
Observe the following ESD precautions before repairing or working near elec-
tronic parts:
• Discharge any static build up on your own body by touching a properly earth-
grounded source.
• Wear an anti-static wrist strap, if possible.
• Use a conducting floor or tabletop.
• Never touch a circuit board or electronic component directly, always hold them
by their plastic frame or insulation.
• Transport electronic parts in conductive packaging (e.g. special ESD packages).