Cleaning The Air Filter; Starter Cable; Maintenance Of The Toothed Chain; Chain Drive Sprocket - Stiga SP 386 Manual De Instrucciones

neither the machine lubrication (Fig. 35.A) nor
the guide bar (Fig. 35.B) holes are clogged.

8.2 CLEANING THE AIR FILTER

IMPORTANT Cleaning the air filter is
essential to guarantee the efficiency and
durability of the machine. Do not work with
a damaged filter or without a filter, as this
could permanently damage the engine.
It must be cleaned after every
8-10 working hours.
Clean the filter as follows:
1. Release the tab (Fig. 36.A) and
remove the cover (Fig. 36.B).
2. Press the metal air filter block until it
attaches with a click (Fig. 37.A).
3. Remove the air filter (Fig. 37.B),
tap it gently to remove the dirt and
clean using a soft brush.
4. If the filter is completely clogged, wash with
clean petrol. If you are using compressed
air, aim the jet so that it blows from the
inside towards the outside (Fig. 38.A).
5. Replace the filter (Fig. 39.B), pull
the metal block (Fig. 39.A) until it
clicks the filter into position.
6. Remount the casing (Fig. 40.A)
making sure that all the parts are
positioned correctly in their housings
on the cylinder cover (Fig. 40.B).
7. Insert the lower section of the
tab and press the top part until it
clicks into place (Fig. 40.C).
8.3 CLUTCH HOUSING
Have your dealer check the condition of the metal
band around the clutch housing once a month.
The band must be replaced if
deteriorated or deformed.

8.4 CHAIN DRIVE SPROCKET

Regularly check the condition of the sprocket
with your local dealer and replace it when
wear exceeds the accepted limits.
Do not mount a new chain with
a worn sprocket or vice-versa.

8.5 CHECKING THE SPARK PLUG

The spark plug (Fig. 30.A) can be accessed
by removing the air filter cover (Fig. 36.B).
Periodically remove and clean the
spark plug using a metal brush to get
rid of any deposits (Fig. 41.A).
Check and reset the correct distance
between the electrodes (Fig. 41.B).
Replace the spark plug and fasten it
firmly using the supplied wrench.
The spark plug must be replaced with one
with the same characteristics whenever the
electrodes have burnt or the insulation has worn,
and in any case every 100 working hours.

8.6 STARTER CABLE

The starter rope must be replaced by your
dealer as soon as it shows signs of wear.
8.7 MAINTENANCE OF THE
TOOTHED CHAIN
To ensure that the chain saw works
safely and efficiently, it is essential that
the cutting means are well-sharpened.
Chain sharpening is necessary when:
– The sawdust looks like dust.
– Cutting becomes more difficult.
– The cut is not straight.
– Vibrations increase.
– Fuel consumption increases.
Kickback may occur if the chain
is not sufficiently sharpened
IMPORTANT It is recommended to have a
specialised centre sharpen the chain using the
right tools to ensure minimum removal of material
and even sharpness on all the cutting edges.
8.7.1 Chain sharpening
If you sharpen the chain yourself, use special
round-section files with the right diameter
depending on the type of chain (see "Chain
Maintenance Table ", chap. 14). You need
a certain amount of skill and experience
to avoid damaging the cutting edges.
Sharpen the chain as follows:
1. Stop the machine (par. 6.6).
2. Disengage the chain brake (par. 5.7)
3. Secure the bar with the chain in a vice (Fig.
42.A), so that the chain can run smoothly.
4. Tighten the chain if it is loose (par. 6.1.3).
EN - 15
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