15
7.0 Maintenance
EN
7.1 General
To ensure that your Nilfi sk-ALTO high pressure washer is always in an operational condition it is advisable
to have it checked by a Nilfi sk-ALTO service technician at regular intervals.
However, it applies to the most exposed components that a minimum of maintenance ensures a pro longed
and problem-free operation. Therefore it will also be a good idea to make a habit of the following:
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Before mounting the water hose and the high pressure hose the quick couplings should be
cleaned of dust and sand.
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Before mounting spray lance or any other accessory on the spray handle, the machine should
be started and the quick coupling cleaned of dust and sand.
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The water fi lter should be cleaned once a month or more frequently as the occasion requires.
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We recommend you to store the machine in a frost-free room. If by mistake the machine
freezes up, it must not be started. Let machine, hoses and accessories thaw up before starting
up.
If the room is not frost-free the machine should be protected with an antifreeze.
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Replace fuel fi lter (14) once the year or more frequently as the occasion requires.
7.2 Oil
Oil change - pump
The oil shold be changed after each 1000 hours’ use.
Remove the cover of the oil reservoir (2). Unscrew the drain plug (3). Allow the oil to run out and clean the
drain plug of impurities. Screw in the plug and refi ll the pump with fresh oil through the oil reservoir. Holds
approx. 1 l.
From Nilfi sk-ALTO the pump is fi lled with zincless hydraulic oil - Nilfi sk-ALTO Pump Oil 100. When refi lling
and chang ing the oil this or an oil with the following specifi cations should be used:
ISO no 100
Viscosity index (VI) min 130
Pour point below -30°C
Sludge container
The used oil is caught in a sludge container (4). The container should be emptied before it is full; this oil
must not be reused in the pump.
Oil change - Honda engine
Refer to the Honda engine manual for maintenance and oil change requirements. Carry out fi rst oil change
after 20 hours’ operation and then every 100 hours. Not less than once every six months, how ev er.
PROTECT THE ENVIRONMENT
Waste oil and oil sludge must be removed as laid down in the instructions.
7.3 Water
fi lter
To avoid debris entering the high pressure pump, a water fi lter is fi tted at the water inlet (1). Dependent on
the purity of the water this fi lter will have to be cleaned once the month or more frequently as the oc ca sion
re quires.
The fi lter can be removed when the quick coupling has been unscrewed.
7.4 Fuel
fi lter
A fi lter (14) between the fuel tank and the fuel pump prevents impurities from penetrating the fuel pump.
The fi lter unit should be changed dependent on the purity of the fuel. A yearly change of the fi lter is rec om -
mend ed.