92 93
EN EN
889 5550
• ATTENTION
y In the event of significant soiling or damage,
replace the air filter with anew original one (part
no.: 8895550B).
2. Gently hand wash (careful not to damage it) the fil-
ter in awarm detergent solution in an appropriate
container (not in the washing machine) and allow it
to dry thoroughly (fig. 11). Do not use organic sol-
vents, e.g. acetone. Handle the filter gently so as
not to damage it.
3. Allow the filter to dry thoroughly at room
temperature.
4. Allow the dry filter to soak up motor oil and sque-
eze out any excess, however do not wring it as this
could tear it (fig. 11). The oil needs to be thorough-
ly squeezed out of the filter, otherwise it would
prevent air from flowing through the filter. Agrea-
sy air filter increases the filtration effect.
5. Put the filter back in place and correctly put cover
back on.
NOTE
The air filter is aconsumable product and its clogging
is not covered by the warranty.
REMOVAL / INSPECTION /
MAINTENANCE / REPLACEMENT
OF THE SPARK PLUG
• WARNING
y The engine and the exhaust pipe are very hot while the
generator is running and for along time after it has been tur-
ned off. Therefore, be very careful to avoid burning yourself.
1. Take off the spark plug connector (fig. 12a) and
remove the spark plug using the correct wrench
key (fig. 12b).
2. Visually inspect the exterior appearance of the
spark plug.
y In the event that the spark plug has clogged electro-
des, file them using sandpaper or steel brush if
necessary (fig. 13).
y If the spark plug is visibly significantly clogged or if the
insulator is cracked or it is peeling, replace the spark plug
with anew one (the spark plug type is specified in table 1).
Using agauge, check that the distance between the
electrodes is 0.6-0.8mm and that the gasket ring is
in order (fig. 14).
3. Then screw the spark plug back in by hand.
4. Once the spark plug is screwed in, tighten it using
aspark plug wrench to compress the gasket ring.
NOTE
y After hand tightening the new spark plug, it is necessa-
ry to turn it by approx. 1/2 arotation to compress the
gasket ring. If this is areused older spark plug, it is only
necessary to tighten it by 1/8 to 1/4 of arotation.
y A spark plug is aconsumable good, and its wear and
tear is not covered by the warranty.
• ATTENTION
y Make sure that the spark plug is well tightened. An
incorrectly tightened spark plug clogs and heats
up significantly and could seriously damage to the
engine.
5. Place the spark plug connector back on to the
spark plug so that it clicks in place.
MAINTENANCE OF THE PETROL
FILTRATION STRAINER IN THE
REFILL NECK OF THE FUEL TANK
1. Screw open the fuel cap and remove the strainer
inserted in the neck of the fuel tank (fig. 9). Rinse
the strainer in any non-flammable cleaning agent
(e.g. detergent solution), or it is also possible to
use abrush with plastic bristles and then rinse the
strainer under clean water and allow it to dry tho-
roughly so that water does not come into contact
with petrol. In the event that the strainer is excessi-
vely soiled, replace it with anew original one.
2. Return the cleaned strainer back into the neck of
the fuel tank.
3. Put the fuel tank cap back on and tighten it firmly.
PURGING THE CARBURETTOR
1. Close the fuel supply to the carburettor by turning the
valve lever to the "OFF" position (fig. 4, position 2).
2. Place an appropriate container underneath the
drain hose of the carburettor and then loosen the
drain bolt of the carburettor and drain the dirty
material into the prepared container (fig. 15).
• ATTENTION
y Purge the carburettor ideally outdoors since petrol
fumes are damaging to health. Likewise, use appropri-
ate waterproof protective gloves to prevent the skin
from being sprayed with petrol. Petrol is absorbed
through the skin into the body! Purge the carburettor
away from any sources of flames and do not smoke.
3. To purge the carburettor, open the fuel supply
using the fuel valve for amoment to allow any dirty
material to flow out into acontainer. Then close the
fuel valve again to shut off the fuel supply.
4. Then firmly tighten the carburettor mud bolt. After
opening the fuel valve, check that petrol is not lea-
king out of the carburettor.
In the event that fuel is leaking, tighten the mud bolt.
• ATTENTION
y Tasks marked with the X
(3)
symbol must be per-
formed only by an authorised generator service
centre for the HERON® brand and tasks marked
with X
(4)
by aqualified inspection technician spe-
cialising in electrical devices, see below. Other
tasks may be performed by the user themselves.
• NOTE
X
(1)
Perform the first oil change after the first 5hours of
operation because there may be fine metal dust from
the engine's bores present in the oil, which may cause
the oil sensor to short-circuit.
X
(2)
An inspection of the air filter must be performed
each time before the generator is put into opera-
tion, since aclogged air filter prevents the supply
of combustion air into the engine, which leads to
its clogging and worse performance, etc. Clean
the filter every 50 hours of operation according
to the described procedure, when used in adusty
environment clean the filter every 10 hours or
more frequently depending on the dustiness of the
environment. In the event of heavy soiling or wear/
damage, replace it with anew original part from
the manufacturer (part no.: 8895550B).
X
(3)
These maintenance points may only be performed by
agenerator service centre authorized for the HERON®
brand. The performance of the tasks by adifferent ser-
vice centre or by the user themselves will be assessed
as unauthorised tampering with the product, the result
of which is the voiding of the warranty (see Warranty
conditions).
X
(4)
ATTENTION According to current legal regulati-
ons in force for the inspection of electrical equipment,
the inspection and checks of all types of generators
may only be performed by an inspection technician
qualified for electrical equipment, who is certified to
perform these tasks, i.e. aknowledgeable person.
In the event that the generator is used in acommercial
application then it is /necessary for the operator, in
the sense of labour employment legal regulations and
on the basis of actual operating conditions and poten-
tial risks, to draw up aplan for preventative maintenan-
ce of the generator as awhole. Mandatory audits must
be performed even on paid rental (hired) generators.
In the event that the generator is used for personal
tasks, it is in your interest to have the electrical parts
of the generator inspected by an electrical inspector
according to the schedule specified in table 2.
X
(5)
Inspect connection points and hoses for leaks.
MAINTENANCE OF THE ENGINE'S
CYLINDER COOLING FINS
Regularly check the engine cooling fins for clogging. In
the event of heavy soiling, the engine may overheat, and
the engine may be seriously damaged or afire may result.
OIL CHANGE
Drain oil from awarm engine, since warm oil has
alower viscosity (flows better) and also ashort time
after the engine is turned off, to ensure that the oil
flows off the walls of the crankcase.
1. Locate the generator on asuitable, elevated stand
to enable asuitable container to be placed bene-
ath the drain opening in order to capture the oil
(fig. 10).
2. Screw out the cap (fig. 2, position 1) off the neck of
the oil tank (to provide an air supply) and the oil
draining bolt from the oil tank (fig. 10) and then
allow the oil to drain out into the prepared conta-
iner. Then, lightly tilt the generator to ensure that
all the oil flows out.
3. After draining all the oil, screw the drain outlet
bolt (fig. 2, position 2) back in and tighten it firmly.
4. Fill the oil tank with new oil according to the
instructions provided above in the user's manual.
5. Screw the oil tank cap (fig. 2, position 1) back on.
• ATTENTION
y Wipe dry any spilled oil. Use protective gloves to pre-
vent your skin coming into contact with oil. In the event
that oil does comes into contact with skin, thoroughly
wash the affected area with soap and water. Do not
throw out unusable oil together with municipal waste,
and do not pour it down the drain or on soil, rather take
it to ahousehold waste collection facility. Transport
used oil in closed containers secured against impact
during transport.
CLEANING/REPLACING
THE AIR FILTER
A clogged air filter prevents air from flowing to the
carburettor and blocks supply of combustion air.
In the interest of preventing subsequent damage,
clean out the air filter in accordance with the
prescribed maintenance plan (table 2). When ope-
rating the generator in adusty environment, clean
the filter even more often.
• WARNING
y Never use petrol or other highly flammable substances
to clean the air filter. There is arisk of afire resulting
from possible electro-static discharge from dust.
y Never operate the generator without the air filter.
Unfiltered combustion air will damage the carburettor
and the engine. Wear and tear caused in this way are not
covered by the free warranty repair.
1. Remove the air filter cover and take out the filter
(see fig. 8).
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