Nilfisk-ALTO E 140.2 - Manual (Page 12)

13
WARNING! Always disconnect
the electrical plug from the
socket prior to maintenance or
cleaning.
To ensure a long and problem
free working life, please take
the following advice:
Wash out water hose, high
pressure hose, spray lance
and accessories before
mounting.
Clean the connectors of dust
and sand. Make sure that no
sand or dirt is blocking the
movement of the pawl on the
Click & Clean spray lance.
Rinse the detergent spraying
attachment after use.
Clean the nozzles.
Any repair should always be
made in an authorized work-
shop with original spare parts.
7 Maintenance
7.1 Cleaning of water inlet
fi lter
Clean the water inlet fi lter regu-
larly once a month or more fre-
quently according to use. Care-
fully loosen the fi lter with a pair
of pliers and clean it. Check that
it is intact before re-mounting it.
The inlet fi lter must always be
fi tted inside the water inlet pipe
to fi lter out sand, limestone and
other impurities, as they will
damage the pump valves.
CAUTION: Failure to fi t the fi lter
will invalidate the guarantee.
7.2 Cleaning of nozzle A clogging up in the nozzle
causes a pump pressure which
is too high. This is why cleaning
is required immediately.
1. Stop the machine and dis-
connect the nozzle.
2. Clean the nozzle. IMPOR-
TANT: The cleaning tool (11)
should only be used when
the nozzle is detached!
3. Flush the nozzle backwards
with water.
7.3 Cleaning of machine
vents
The machine should be kept
clean so as to let cooling air
7.4 Greasing of couplings
To ensure an easy connec-
tion and that o-rings do not
pass freely through the ma-
chine vents.
dry up, the couplings should be
greased regularly.