Checking The Spark Plug (Illustration Y ); Correct Winter Storage Of The Engine (Or When Not Used For A Long Period Of Time); Troubleshooting - Sabo 54-K VARIO B Operator's Manual

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
Engine does not start
Engine performance decreases
Engine runs irregularly
Cutting blade does not start
Mower will not move forward
Drive speed cannot be regulated
Extreme vibration
Possible cause
Fuel tank is empty.
Petrol tap closed.
Spark plug connector loose.
Spark plug defective or dirty or
electrode burnt out.
Excessive petrol supply to engine
(spark plug wet).
Air filter dirty
Air filter dirty.
Spark plug contaminated with soot.
Air filter dirty.
Spark plug contaminated with soot.
Switch holder not turned down.
Switch-on lever of cutting unit not
actuated
Did not observe the sequence for
switching the mower on.
Too much grass residue underneath
the housing
Drive control bracket not pulled.
19
Remedy
Fill fuel tank with clean and fresh fuel.
Open the petrol tap S2 .
Press on spark plug connector or have it
checked by an authorized dealer.
Replace or clean spark plug, set electrode
gap to 0.7-0.8 mm Y .
Have it checked by an authorized dealer.
Clean or replace air filter insert W .
Clean or replace air filter insert W .
Have it cleaned by an authorized dealer.
Clean or replace air filter insert W .
Have it cleaned by an authorized dealer.
Have it checked by an authorized dealer.
Press switch holder onto the upper part of
the bar H3 .
Swiftly push the lever forward up to the stop
and release H3 .
Switch holder and switch-on lever of the
mower must be actuated in the specified
sequence.
Remove grass from cutting space.
Keep gap between fan and housing clean.
Check cutting blade for freedom of motion.
Attention! Please observe safety
information before starting these activities.
Get it checked by an authorized workshop.
Pull drive switch bar G .
Have it checked by an authorized dealer.
Have it checked by an authorized dealer
Have it checked by an authorized dealer
GB