Sparking Plug - Stiga President Bedienungsanleitung

All models:
Note! The filters should be cleaned more often if
the machine operates on dusty ground.
1. Loosen the wing nut under the fuel tank and
move it backwards (fig. 16). Also loosen the bat-
tery to make it easier to get at the air filter (applies
to Pro16-Pro20).
2. Remove the air filter's protective cover (fig. 19
- 21).
3. Dismantle the paper filter insert and the foam
pre-filter. Make sure that no dirt gets into the car-
burettor. Clean the air filter housing.
4. Wash the pre-filter in liquid detergent and water.
Squeeze dry. Pour a little oil on the filter and
squeeze in the oil.
5. Clean the paper filter insert as follows: Knock it
lightly against a flat surface. If the filter is very
dirty, change it.
6. Assemble in the reverse order.
Petroleum-based solvents such as kerosene must
not be used for cleaning the paper filter insert as
these can destroy the filter.
Do not use compressed air for cleaning the paper
filter insert. The paper filter insert must not be
oiled.
AIR FILTER – CATALYTIC CONVERT-
ER (Pro20 Cat)
Clean the catalytic converter's air filter every 3
months or after every 25 hours of operation,
whichever comes first.
1. Remove the cover by pressing in the locking
mechanism with a screwdriver etc. (fig. 22).
2. Remove the foam filter and wash it in liquid de-
tergent and water. Squeeze dry. Do not oil the filter.
3. Replace the filter and snap the cover into place.

SPARKING PLUG

Only use a Briggs & Stratton sparking tester to
check the spark in the sparking plug(s) (fig. 23).
Clean the sparking plug after every 100 hours of
operation or once a season. For replacing a spark-
ing plug, a sparking plug sleeve A and a torsion pin
B are provided in the accessories bag.
The engine manufacturer recommends:
Senator-President: Champion J19LM
ENGLISH
Royal: NGK BPR5ES or DENSO W16EPR-U
Pro16-Pro20: Champion RC12YC
Correct spark gap: 0.75 mm.
COOLING AIR INTAKE - ENGINE
The engine is air-cooled. A blocked cooling sys-
tem can damage the engine. The engine should be
cleaned at least once a year or every 100 hours of
operation.
Remove the fan casing. Clean the cooling fins on
the cylinder, the fan and the rotating protective
grille (fig. 24 - 25). Clean more frequently if mow-
ing dry grass.
BATTERY
The battery is a valve-regulated battery with 12 V
nominal voltage. The battery is completely main-
tenance free. You don't have to check or top up the
electrolyte level.
On delivery, the battery is in the accessories box.
The battery must be fully charged be-
fore being used for the first time. The
battery should always be stored fully
charged. If the battery is stored for
longer than 10 days without being
charged, it can be damaged.
If the machine is not going to be used for an ex-
tended period (more than 1 month), the battery
should be charged, disconnected and then stored in
a cool, safe place. Charge the battery completely
before reinstalling.
The battery can be charged in two ways:
1. Via a battery charger (recommended). This must
be a charger with constant voltage. The battery
can be damaged if a standard type battery
charger (for acid batteries) is used.
Stiga recommends battery charger with item no.
1136-0602-01 which may be ordered by an au-
thorised dealer.
2. You can also allow the engine to charge the bat-
tery. In this case it is very important, above all
when starting the machine for the first time and
when it has not been used for a long time, to al-
low the engine to run continuously for at least
45 minutes.
GB
63