Spark Plug; Winter Storage - Stiga 46 User Manual

GB

SPARK PLUG

Never remove the spark plug or spark
plug cable when checking to see if there
is a spark. Always use an approved test
instrument.
Clean the spark plug regularly (every 100 hours of
operation). Use a wire brush for cleaning. Set the
correct spark gap (fig. 14).
Change the spark plug if the electrodes are
excessively burnt or if the plug is damaged. The
engine manufacturers' recommendations are as
follows:
Briggs & Stratton: Champion J19LM (RJ19LM),
spark gap 0.7-0.8 mm.
Honda: BPR6ES (NGK).
Spark gap 0.7-0.8 mm.
SHOCK-ABSORBER
Fig. 16. Check the shock-absorber and the
insulating sleeves twice per season. Replace in the
event of damage or wear.
CHANGING BLADES
Use protective gloves when changing
blades to avoid cutting yourself.
Blunt and damaged blades tear up the grass
and make the lawn unsightly after mowing. New
well-sharpened blades cut off the grass. This gives
a green and fresh appearance after mowing.
Always check the blades after a collision. First
disconnect the spark plug cable. If the blade
system has been damaged, defective parts should
be replaced. Always use genuine spare parts.
To replace the blade, slacken the screw. Fit the
new blade so that the stamped STIGA logo is
turned up facing the blade holder (not facing the
grass). Reinstall as illustrated. Tighten the screw
properly. Tightening torque 40 Nm (fig. 15).
When replacing the blade, the blade screw should
also be replaced.
The guarantee does not cover damage to the blade,
blade holder or engine caused by running into
obstacles.
When replacing the blade, blade holder and blade
screw, always use genuine spare parts. Non-
genuine spare parts can entail a risk of injury or
damage, even if they fit the machine.
ENGLISH
SHARPENING OF THE BLADES
Sharpening of the blades must be done by wet
method grinding, using a whetstone or a
grindstone.
For safety reasons, the blades should not be
sharpened on an emery wheel. Too high
temperature could cause the blade to become
brittle.
Once the blade has been sharpened, it
must then be balanced to avoid
vibration damage.
STORAGE

WINTER STORAGE

Empty the fuel tank. Start the engine and let it run
until it stops. The same petrol must not remain in
the tank for more than one month.
Tip up the mower and unscrew the spark plug.
Pour a tablespoon of engine oil into the spark plug
hole. Pull out the starter handle slowly so that the
oil is distributed in the cylinder. Screw in the spark
plug.
Thoroughly clean the mower and store it indoors in
a dry place.
SERVICING
Genuine spare parts are supplied by service
workshops and by many dealers.
A list of these can be found on STIGA's Internet
website at: www.stiga.com.