
12
1.0 Preparation EN
IMPORTANT! Only use water without any impu-
rities. If there is a risk of running sands in the inlet
water (i.e. from your own well), an additional filter
should be mounted.
Safety precautions
WARNING! High pressure jets
can be dangerous. Never direct
the water jet at persons, pets, live
electrical equipment or the ma-
chine itself.
The operator and anyone in the
immediate vicinity of the site of cleaning should
take action to protect themselves from being
struck by debris dislodged during operation. Wear
goggles during operation.
Never try to clean clothes or footwear on yourself
or other persons.
Do not let children or people who have not read
the instruction manual operate the machine.
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.
Safety devices
Locking device on spray handle
The spray handle features a locking device (5a).
When the pawl is activated, the spray handle cannot
be operated.
Thermal sensor
A thermal sensor protects the motor against
overloading.The machine will restart after a few
minutes when the thermal sensor has cooled.
Before starting up your high pressure washer, we
advise you to carefully read through this instruction
manual. Follow all instructions to minimize the risk
of injuries when using the machine.
Prior to operation
Before starting up your machine please check it
carefully for any defects. If you find any, do not start
up your machine and contact your ALTO distributor.
Especially check:
The insulation of the electric cable should be
faultless and without any cracks. If the electric
cable is damaged, it should be replaced by an
authorized ALTO distributor.
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 cer-
tified electrician.
It is strongly recommended that the electric sup-
ply to this machine should include a residual
current device (GFCI).
Extension cable
Extension cables should be of a watertight con-
struction and comply with the below-mentioned
requirements for length and cable dimensions.
1,0 mm² max 12,5 m
1,5 mm² max 20 m
2,5 mm² max 30 m
Cable connections should be kept dry and off the
ground.
Always uncoil the extension cable completely to
avoid heat damage to the cable.
Water connection
Connect the high pressure washer by means of
the water hose to the water tap (pressure of inlet
water, max. 10 bar - temperature of inlet water, max.
50°C). You may use an ordinary 1/2" garden hose
of min. 5 m and max. 25 m. Attach the hose using a
quick connector.
NOTE: Connection to the public mains according to
regulations.