Sabo 47-K VARIO B, Operator'S Manual, Page: 73 / 116

17
GB
Cleaning and replacing the air filter (Illustration W )
IMPORTANT
Never let the engine start or run whilst the air filter is removed.
– Push the catches (1) to the back.
– Grasp the cover of the air filter (2) at the front at the lower edge, pull forward and upward and remove the cover.
– Remove pre-filter (3) and paper filter insert (4) from the air filter housing (5).
– Clean paper filter insert (4) every 100 operating hours.
When lightly soiled, knock clean carefully; replace if severely soiled or damaged. The paper filter should not be washed,
blown through with compressed air or rubbed with oil.
– Clean the pre-filter (3) every 25 operating hours.
Wash the pre-filter in warm water with a liquid cleaning agent and leave to dry thoroughly in the air. Do not rub the pre-
filter with oil.
– After cleaning or replacement, first insert the pre-filter and then the paper filter insert in the housing (5).
– Insert air filter cover with strap (6) in housing adapter (7). Press cover down and engage in the catch (1).
In the worst conditions (large amounts of dust) it is necessary to clean the mower whenever it has been used. Replace the
paper filter insert every year or every 300 operating hours.
(Order no. filter insert and pre-filter see original spare parts and accessories)
Checking the spark plug (Illustration Y )
To check for wear, remove the spark plug connector and unscrew the spark plug. If the electrode is badly worn the spark
plug must be replaced as a matter of course. (Order no. see original spare parts list and accessories).
Otherwise it is sufficient to clean the spark plug and set the electrode gap to 0.7-0.8 mm. Screw the spark plug (pay attention
to sealing ring) into the engine by hand and tighten using the socket wrench. Press on spark plug connector. Replace the
spark plug annually.
Correct winter storage of the engine (or when not used for a long period of time)
– Empty the petrol tank or allow the engine to run until it stops due to lack of fuel.
– Switch off engine and disconnect spark plug cable.
– Drain the oil while the motor is still warm. Fill with fresh oil (for quantity and type, see technical data).
– Clean grass and chaff from cylinder and cylinder head fins and around muffler.
– Always keep the machine in a clean condition in a closed, dry room out of reach of children.
20 TROUBLESHOOTING
Fault Possible cause Remedy
Engine does not start
Fuel tank is empty. Fill fuel tank with clean and fresh fuel.
Petrol tap closed. Open the petrol tap S2 .
Spark plug connector loose. Press on spark plug connector or have it
checked by an authorized dealer.
Spark plug defective or dirty or
electrode burnt out. Replace or clean spark plug, set electrode
gap to 0.7-0.8 mm
Y .
Excessive petrol supply to engine
(spark plug wet). Have it checked by an authorized dealer.
Air filter dirty Clean or replace air filter insert W .
Engine performance decreases
Air filter dirty. Clean or replace air filter insert W .
Spark plug contaminated with soot. Have it cleaned by an authorized dealer.
Engine runs irregularly
Air filter dirty. Clean or replace air filter insert W .
Spark plug contaminated with soot. Have it cleaned by an authorized dealer.
Have it checked by an authorized dealer.
Cutting blade does not start
Switch holder not turned down. Press switch holder onto the upper part of
the bar
H3 .
Switch-on lever of cutting unit not
actuated Swiftly push the lever forward up to the stop
and release
H3 .