EN
Compressed air or petroleum-based solvents
such as kerosene must not be used for cleaning
the paper filter insert. This will damage the filter.
The paper filter insert must not be oiled.
9.11.2
Cleaning / Replacement - mod.:
[B&S Vanguard] (33)
For the frequency of this intervention
see chapter 13.
NOTE! The filters should be cleaned/re-
placed more often if the machine opera-
tes on very dusty ground.
Remove/install the air filters as follows:
1. Carefully clean around the air filter cover.
2. Remove the air filter cover (33:A) by remo-
ving the two clamps.
3. Dismantle the filter assembly (33:B). The pre-
filter is placed over the air filter. Make sure
that no dirt gets into the carburettor. Clean
the air filter housing.
4. Clean the paper filter by tapping it gently
against a flat surface. If the filter is very dirty,
replace it.
5. Clean the pre-filter. If the filter is very dirty,
replace it.
6. Assemble the filter by performing the above
instructions in reverse order.
9.11.3
Cleaning / Replacement - mod.: [ST.]
(34)
For the frequency of this intervention
see chapter 13.
NOTE! The filters should be cleaned/re-
placed more often if the machine opera-
tes on very dusty ground.
Remove/install the air filters as follows:
1. Clean the area around the filter cover (34:A).
2. Open the cover (34:A) by unscrewing the
opening k nob (34:B).
3. Remove the filter element (34:C + 34:D).
4. Remove the sponge pre-filter (34:D) from the
cartridge (34:C).
5. Tap the cartridge (34:C) on a solid surface
and blow with compressed air from the inside
to remove dust and debris.
6. Wash the sponge pre-filter (34:D) with water
and detergent and leave it to dry in the air.
7. Clean any dust and debris from the inside of
the filter housing (34:E) taking care to close
the intake duct with a rag (34:F) to prevent
22
ENGLISH
(Translation of the Original Instructions)
foreign bodies entering the engine.
8. Remove the rag (34:F), refit the filter element
(34:D + 34:C) in its housing and refit the co-
ver (34:A).
9.11.4
Replace the spark plug
For the frequency of this intervention
see chapter 13.
Before removing the spark plug, clean around its
mounting.
For the type of spark plug and relative spark gap,
please refer to "0 TECHNICAL DATA TABLE".
9.11.5
Cleaning the air intake.
For the frequency of this intervention
see chapter 13.
See figure (32:C).
The engine is air-cooled.
A blocked cooling system can damage the engine.
More meticulous cleaning of the cooling system
should be carried out during each basic service.
9.12 LUBRICATION (30)
For the frequency of this intervention
see chapter 13.
Object Action
Centre
point
Steering
chains
Tensioning
arms
4 grease nipples
Use a grease nipple filled
with multi-purpose grease.
Pump until the grease
seeps out.
Brush the chain clean
with a wire brush.
Lubricate with universal
chain spray.
Lubricate the support
points with oil
when each control is
activated.
Ideally this operation
should
be carried out by two
people.
Fig.
30A
-
30B