Stiga SP 52 Operator's Manual page 38

14
EN
CYLINDER AND SILENCER (Fig. 19)
To reduce fire risks, periodically clean the cylinder
flaps with compressed air and clear the silencer
area to get rid of sawdust, branches, leaves or
other debris.
STARTING SYSTEM
To avoid overheating and damage to the engine, al-
ways keep the cooling air vents clean and free of
sawdust and debris.
The starter rope must be replaced as soon as it
shows signs of wear.
CLUTCH UNIT (Fig. 20)
Keep the clutch bell free of sawdust and debris, re-
move the casing (as illustrated in Chap. 4.1) and re-
place it correctly when the operation has been
completed. Have your dealer check the greasing of
the internal bearing every 30 hours (approx.).
CHAIN BRAKE
Regularly check the efficiency of the chain brake
and the condition of the metal band around the
clutch bell, remove the casing (as illustrated in
Chap. 4.1) and replace it correctly when the oper-
ation has been completed.
CHAIN SPROCKET
Regularly check the condition of the sprocket with
your local retailer and replace it when wear ex-
ceeds the accepted limits.
Do not mount a new chain with a worn sprocket or
vice-versa.
LUBRICATION HOLE (Fig. 21)
Periodically remove the casing (as illustrated in
Chap. 4.1) remove the bar and check that neither
the machine lubrication holes (1) or the bar (2) are
clogged.
CHAIN CATCHER
This is an important safety device that restrains
the chain if it breaks or degrooves.
MAINTENANCE AND STORAGE
Regularly check the condition of the pin and re-
place it if damaged.
NUTS AND SCREWS
Periodically check that all the nuts and screws are
securely tightened and the handgrips are tightly
fastened.
CLEANING THE AIR FILTER
IMPORTANT
sential to guarantee the efficiency and duration 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.
• Models 36 and 43
To clean the filter (Fig. 22):
– Move the front hand guard forward.
– Unscrew the screw (1) and remove the cover (2).
– Remove the sponge pre-filter (3a) and filter ele-
ment (3).
– Slightly hit the filtering element (3) to remove
dirt.
– If necessary, clean the sponge pre-filter (3a) and
filtering element (3) with hot soapy water or de-
tergent or clean with a jet of compressed air.
– Eliminate all sawdust and dirt residue in the filter
housing (4) being careful it does not penetrate in
the suction duct (5).
– Reassemble the filtering element (3) and sponge
pre-filter (3a) only when thoroughly dry.
– Remount the cover (2).
• Models 46 and 52
To clean the filter (Fig. 23):
– Move the front hand guard forward.
– Using a screwdriver, remove the three side
springs (1) and the cover (2).
– Extract the starter knob (3) and, using pliers, ex-
tract the two side stops (4).
– Remove the filter element (5) and tap it gently to
remove any dirt and, if necessary, clean it with
hot soapy water or detergent. If you are using
compressed air, aim the jet so that it blows from
the inside towards the outside.
– Eliminate all sawdust and dirt residue in the filter
Cleaning the air filter is es-