Nilfisk-ALTO Contractor Diesel - Manual (Page 8)

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8.0 Connections EN
8.4 Suction Mode
The machine is self priming, when used from a
tank or stream, etc. The inlet hose must be filled
with water before starting up. The self priming
height depends on the water temperature. Max.
self priming height of 5 m (17 ft) is reached with
cold water (up to 8°C/47°F). Foreign material in
the water supply can damage your machine. If
there is a risk of foreign material in the water
source entering the supply hose, a filter or filter
must be mounted.
8.5 Use of Detergents
The machine is supplied as standard without
detergent injection equipment. In self priming
mode, detergents must not be added to the feed
water (pos. 1), and thereby circulated through
the pump. If your work requires detergents,
they may be added through the optional
external (downstream) injector available from
your ALTO supplier.
NOTE! Certain organic solvents are aggressive
to rubber and plastics used in high pressure
hoses and must therefore not be used. Using
detergents outside the range from 4.0 - 10.0
pH, will result in a loss of working life for your
high pressure hose and seals in the spray
handle, lances and other accessory. Follow
precisely the directions printed on the packing
when using detergents.
8.6 Fuel for burner
Use ONLY ”heating oil”, kerosene or diesel fuel
in the ”Jerry-can” fuel tank for the burner. DO
NOT put gasoline in the burner fuel can!
8.7 Fuel for engine
Use only clean auto-diesel for the Ruggerini
engine.
8.1 High pressure Hose
Connect the high pressure, steam-capable
hose (pos. 24), to the outlet quick-coupling
(pos. 10) on the machine front. Use only original
ALTO high pressure, steam-capable hoses.
The hose should not be exposed to abuse,
such as knots, kinks, contact with sharp
objects or external heat sources, as this may
cause bursting. Only ALTO high pressure,
steam-capable hose should be used for
extension hoses. The extension hoses should
not exceed a total maximum length of 300 ft
(100 m).
8.2 Spray handle and lance
Check the male connector (pos. 25) of the
spray lance for foreign material. With one hand,
grasp the quick coupler fitting (pos. 26) and pull
it forward. Insert the male connector of the
lance or accessory into the spray handle quick-
coupler, and release the fitting. Pull the lance or
accessory forward to ensure it is correctly and
tightly installed, before operating the machine.
NEVER release a lance or accessory while
water or steam are coming from the nozzles of
the lance or accessory.
8.3 Water connection
The water inlet connection is at the front of the
machine, on the pump (pos. 1). Before
connecting the water supply hose, it should be
flushed to remove any impurities. The machine
can be connected directly to a pressurized
water supply or a tank. The inlet pressure must
not exceed 15 bar (218 psi) and the water
temperature must not exceed 35°C (95F°) .
When the machine is connected to a water
supply with back-flow-preventer the water
supply hose must be at least 6 m (20 ft) in
length. If there are impurities in the water
source, it is advisable to provide additional
filtration in the inlet line. Ask your ALTO
representative about the filters and filters
available for your CONTRACTOR.