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Changing The Drive V-Belt; Servicing The Engine; Oil Change; Cleaning And Replacing The Air Filter (Illustration W ) - Sabo 52-PRO S K A PLUS Betriebsanleitung

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Changing the drive V-belt

The drive V-belt must be replaced by a specialist workshop.

17 SERVICING THE ENGINE

WARNING
Avoid injury! Engine exhaust fumes contain carbon monoxide and can cause
serious illness or death.
Do not run an engine in an enclosed area, such as a garage, even with doors and
windows open.
Move the machine to an outside area before starting the engine.
IMPORTANT
To clean the engine and for maintenance work, always close the petrol tap and
ventilation valve (1) A , do not place the engine or mower on its side but tilt
forwards O (spark plug upwards) because otherwise there may be problems
starting the engine. Secure the mower in the raised position!
ATTENTION
When tilting the machine upwards, ensure that no oil or fuel comes out of the
machine. Fire hazard!
The regular implementation of the prescribed maintenance and care work are the
prerequisite for a permanent and fault-free functionality of the motor and also the basic
requirement for any guarantee claims.
The motor should be kept clean, particularly on the outside, and the silencer and
cylinder area must always be kept free from foreign bodies (e.g. grass residue). The
exhaust and motor reach very high temperatures when in use. Flammable foreign
bodies such as foliage, grass etc. may catch fire.
Perfect cooling can also only ensured when cylinder ribs are always clean.
IMPORTANT
Never use a pressure cleaner or ordinary water jet to clean the motor. Damages
or expensive repairs can be the consequence of such action.

Oil change

NOTE
For environmental reasons, we recommend that the oil change is performed by
an authorised workshop.
The first oil change in a new engine is required after approx. 20 operating hours. Later,
it should be done every 50 operating hours or at least once per mowing season.
Before the engine or the equipment is tilted to drain oil, empty the petrol tank and
let the engine to run until it stops due to lack of fuel.
Stop the engine and remove the spark plug connector.
Renew the oil so long as the engine is warm.
To replace the oil, remove the dipstick from the oil filler neck and set the mower on
its side so that the used oil can drain into a container.
Do not drain used oil into the sewage system or soil; dispose of it according
to the local regulations.
Position the mower straight and fill brand-name oil into the spout (for quantity and
quality, see technical data). Insert the dipstick but do not screw it tight, check the
oil level (see chapter Filling oil, illustration Y1 )! If the oil level is correct, insert the
dipstick again and tighten it.

Cleaning and replacing the air filter (Illustration W )

IMPORTANT
Never let the engine start or run whilst the air filter is removed.
Open the cover (1), pull down and out and remove.
Remove the paper filter insert (2) and pre-filter (3). To remove the pre-filter from
the cover, remove the grid (4) first.
Clean the paper filter insert every 50 operating hours
Knock gently onto a smooth surface if soiled lightly. Replace if heavily soiled or
damaged. Do not wash out paper filters, nor blow them out with compressed air or
grease them.
Clean the pre-filter every 50 operating hours.
Wash pre-filters in hot water with liquid detergent, rinse them out in clean water,
press out excess water and allow to dry thoroughly in air. Do not lubricate the pre-
filter with oil.
Safety instruction!
See table for explanation of symbols
page 3
After cleaning or replacement, insert the filter element into the air filter plate, insert
the pre-filter in the cover and fix in place with the grid.
Insert the hooks (5) on the cover (1) into the seat (6) at the bottom in the air filter
plate.
Tilt the cover upwards and close with care.
In the case of unfavourable operation conditions (severe formation of dust), cleaning is
required after every mowing process. Replace the paper filter element and pre-filter
annually or every 100 operation hours.
(Please see original spare parts and accessories for order no. of filter element)

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 0.6-0.7
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 off the oil while the engine 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.

18 TROUBLESHOOTING

Fault
Possible cause
Control bracket not
Engine does not start
pressed down.
Petrol tap closed.
Fuel tank is empty.
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 soiled.
Engine power
decreasing
Ventilation valve in the
fuel filler cap closed.
Spark plug clogged with
soot.
Fuel old or soiled
Ventilation valve in tank
Engine runs irregularly
cover closed.
Air filter dirty.
Spark plug contaminated
with soot.
Pull drive control bar not
Mower does not work
pulled.
10
Remedy
Press control bracket to
upper part of handlebar D .
Open the petrol tap A .
Fill fuel tank with clean and
fresh fuel.
Press on spark plug
connector or have it checked
by an authorized dealer.
Replace or clean spark plug,
set electrode gap to 0.6-0.7
mm Y .
Have it checked by an
authorized dealer.
Clean or replace air filter
insert W .
Clean or replace the air filter
insert W .
Open the ventilation valve in
the fuel filler cap A .
Have it checked by an
authorised workshop.
Empty the petrol tank and fill
with fresh petrol.
Open ventilation valve in tank
cover A .
Clean or replace air filter
insert W .
Have it cleaned by an
authorized dealer.
Have it checked by an
authorized dealer.
Pull drive control bar G .
Have it checked by an
authorised workshop.

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