Water Connection; Mains Power Connection; Extension Cables; During Operation - Nilfisk-ALTO NEPTUNE 1 Quick Start Manual

Water connection

1. Never operate the cleaner without water.
Even brief shortages of water result in se-
vere damage to the pump seals.
2. This high pressure washer/cleaner is only
allowed to be connected with the drinking
watermains, when an appropriate back-
flow preventer has been installed, Type
BA according to EN 1717. If the back
flow preventer hasn't been supplied, one
can be ordered from your dealer. The
length of the hose between the backflow
preventer and the high pressure washer
must be at least 6 metres (min diameter
3/4 inch) to absorb possible pressure
peaks. Operation by suction (for example
from a rainwater vessel) is carried out
without backflow preventer. Contact your
dealer for suction set recommendations.
As soon as water has flown through the
BA valve, this water is not considered to be
drinking water any more.
3. Observe required water quantity and water
pressure.
4. In the case of poor water quality (sand, etc.)
add a water filter to the machine.
5. Rinse the water supply hose briefly in or-
der to prevent sand and other dirt particles
entering into the machine.

Mains power connection

The following should be observed when
connecting the high pressure washer to the
electric installation:
 Only connect the machine to an installation
with earth connection.
 The electric installation shall be made by a
certified electrician.
 According to IEC 60364-1 it is strongly rec-
ommended that the electric supply to this
machine should include a residual current
device (GFCI).
6

Extension cables

Inadequate extension cables can be dangerous.
Cables on drums should always be completely
unwinded to prevent the cable from overheating.
Extension cables should be of a watertight con-
struction and comply with the below-mentioned
requirements for length and cable dimensions.
Cable length
< 16 A
up to 20 m 1.5 mm
20 to 50 m 2.5 mm
 Cable connections should be kept dry and off
the ground.

During operation

 High pressure jets can be dangerous. Never
direct the water jet at persons, pets, live elec-
trical equipment or the machine itself.
 Never try to clean clothes or footwear on
yourself or other persons.
 The operator and anyone in the immediate
vicinity of the site of cleaning should take ac-
tion to protect themselves from being struck
by debris dislodged during operation. Wear
goggles during operation.
 Do not cover the machine during operation.
 Never use the machine in an environment
where there could be a danger of explosion.
If any doubt arises, please contact the local
authorities.
 It is not allowed to clean asbestos- containing
surfaces with high pressure.
 This high pressure washer must not be used
at temperatures below 0°C.
 Only use correct fuel as specified. Improper
fuels can cause severe hazard.

Repair and maintenance

Always remove the electric plug from the socket
before carrying out maintenance work on the
machine.
Cross section
< 25 A
2.5 mm
2 2
4.0 mm
2 2
Original instruction