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12.0 Maintenance EN
2. ENGINE OIL CHANGE
Refer to the Ruggerini engine manual for break-
in and normal operating oil change
requirements. Carry out first oil change after i0
hours of operation and then every 100 hours.
Not less than once every six months, however.
NOTE: Protect the environment by properly
disposing of used pump and engine oil.
12.4 Burner fuel filter
To prevent foreign material from entering the
fuel pump a filter (14) is fitted between the fuel
tank and the fuel pump. This filter must be
changed regularly, the frequency depends on
the purity of the fuel. Replacement of the filter
each year is recommended. See also diagnosis
of faults and repair 16.0.
12.5 Descaling
After a period of operation depending on the
hardness of the water, scale deposits will begin
to accumulate in the heating coil. These
deposits will reduce the effect of the water
heating system and increase the fuel
consumption. The machine should therefore be
descaled regularly. If the machine adjusted on
maximum water volume will not heat cold water
(8°C/47°F) to 70°C (158°F) within three
minutes, the burner or coil require servicing or
descaling, as follows:
NOTE:
Always carry out the descaling according to the
instructions supplied with the descaling product:
1. Disconnect the high pressure hose
2. Place an inlet hose in a container of at least
10 l (3 gallon) capacity, with a solution of
recognized descaling product (i.e. ALTO
STONEX), and water in the recommended
percentage (not normally over 10% of the
descaling product ratio 1:10). Ask your ALTO
distributor for recommendations.
3. Start the machine.
4. Switch off the machine when the water from
the outlet fitting is colored by the scale rem-
over.
WARNING! The solution can be caustic. Note:
Air must in no circumstances get into the sy-
stem; therefore the container with scale rem-
over must never be emptied completely.
12.1 Water inlet filter
The inlet water connection (pos. 1) contains a
filter to prevent impurities entering the high-
pressure pump. This filter must be inspected at
regular intervals, and cleaned as required. The
filter can be removed after removing the quick
coupling.
NOTE:
To avoid serious damage to the rubber gasket,
the quick coupling should be tightened only
gently.
12.2 Couplings/connectors
To prevent leakage and damage to connectors/
couplings on hoses, spray handle, machine and
spray lance, these need to be cleaned
occasionally and lightly lubricated with oil or
grease.
12.3 Oil Change
The oil level must be checked at regular
intervals (see section 9.1). The oil should be
changed according to the following guidelines:
1. OIL CHANGE FOR PUMP
Change the oil after 1000 hours of operation, or
when the oil appears ”milk-white”. Take off the
cover of the oil glass (pos. 2). Unscrew the oil
drain plug on the bottom of the pump (pos. 3).
Drain the oil and then clean the dirt off the drain
plug. Screw the plug in and top up the pump
with fresh oil through the oil glass.
The pump holds approximately 1 quart (1 litre)
of zincless hydraulic oil. From ALTO the pump
is filled with ALTO Pump Oil 100. When refilling
and changing the oil this or a substitute with the
following specifications may be used:
Zincless Hydraulic Oil
ISO no. 100
Viscosity Index (VI) min. 130
Pour Point below -30°C
SLUDGE CONTAINER
It is normal for a small amount of oil and water
to get past their seals. This oil/ water is
collected in a sludge container (pos. 4). Empty
the container before it has filled completely. This
oil/water mixture must not be re-used in the
pump.