Before Use; Water Connection; Mains Power Connection; Extension Cables - Nilfisk C 120.3 Guia De Inicio Rapido

Before use

Before starting up your machine, please check
it carefully for any defects. If you fi nd any, do
not start up your machine and contact your
Nilfi sk distributor.
Especially check:
 The insulation of the electric cable should
be faultless and without any cracks. If the
electric cable is damaged, an authorized
Nilfi sk distributor should replace it.

Water connection

The machine not suitable for con-
nection to the potable water mains.
This high pressure washer is only
allowed to be connected with the potable
water mains, when an appropriate backfl ow
preventer has been installed, Type BA ac-
cording to EN 1717. The backfl ow preventer
must comply with IEC 60335-2-79 annex AA.
The backfl ow preventer can be ordered under
number 106411177. The length of the hose
between the backfl ow preventer and the high
pressure washer must be at least 10 metres
(max. 25 m) to absorb possible pressure
peaks (min diameter ½ inch). Make sure that
the hose is faultless and does not leak.
Operation by suction (for example from a
rainwater vessel) is carried out without back-
fl ow preventer. Recommended suction set:
126411387.
As soon as water has fl own through the back
fl ow preventer, this water is not considered to
be drinking water any more.
IMPORTANT! Only use water without any
impurities. If there is a risk of running sands
in the inlet water (i.e. from your own well), an
additional fi lter should be mounted.
Inlet water - max. pressure: 10 bar, max.
temperature: 40°C.

Note: The inlet fi lter must always
be fi tted in the water inlet pipe
to fi lter out sand, lime stone and
other impurities as these will damage
the pump valves. Failure to fi t the fi lter will
invalidate the guarantee.

Mains power connection

The following should be observed when
All manuals and user guides at all-guides.com
connecting the high pressure washer to the
electric installation:
 Only connect the machine to an installation
 The electric supply connection shall be
 It is recommended that the electric sup-
 If the supply cord is damaged, it must be

Extension cables

Inadequate extension cables can be dan-
gerous. Cables on drums should always be
completely unwinded to prevent the cable from
overheating.
Extension cables should be of a watertight
construction and comply with the below-
mentioned requirements for length and cable
dimensions.
 Cable connections should be kept dry and

During operation

WARNING !
 High pressure jets can be dan-
 Do not direct the jet against yourself
 Hold the spray lance fi rmly with both
 The operator and anyone in the immediate
 Do not cover the machine during operation.
 If the machine is left or not used for 5 min.,
 Never use the machine in an environment
with earth connection (applies to C120.5)
made by a qualifi ed electrician and comply
with IEC 60364-1.
ply to this machine should include either a
residual current device that will interrupt the
supply if the leakage current to earth ex-
ceeds 30 mA for 30 ms or a device that will
prove the earth circuit.
replaced by the manufacturer, its service
agent or similarly qualifi ed persons in order
to avoid a hazard.
1.0 mm² max.
1.5 mm² max.
2.5 mm² max.
off the ground.
gerous if subject to misuse. Never
direct the water jet at persons, pets,
live electrical equipment or the
machine itself.
or others in order to clean clothes or foot-
wear.
hands. The spray lance is affected
by a thrust of up to 16.4 N during
operation.
vicinity of the site of cleaning should take
action to protect themselves from being
struck by debris dislodged during operation.
Wear goggles during operation.
it must be switched off on the start/stop
switch.
12.5 m
20 m
30 m
23