Sabo 43-PRO S, Operator'S Manual, Page: 39 / 76

9
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
Check the oil level before every use and replenish oil if necessary (see “ Check oil
level ” and “ Fill with oil ”, illustration Y1 ).
An oil change is not necessary. If you wish to change the oil, however, please follow the
instructions below.
Changing the oil
– 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 as long as the engine is warm.
– To change the oil, remove the dipstick from the oil refill neck.
– Turn the mower on one side so that the spark plug side is facing upwards and 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). Screw the dipstick in and check the oil level (see
“ Check oil level ” and “ Fill with oil ”, illustration Y1 )! If the oil level is correct,
insert the dipstick and tighten it.
NOTE
For environmental reasons, we recommend that the oil change is performed by
an authorised workshop.
Cleaning and replacing the air filter (Illustration W )
IMPORTANT
Never let the engine start or run whilst the air filter is removed.
– Loosen the nut (1) on the air filter cover (2) and remove the cover.
– Remove the pre-filter (3) and paper filter element (4).
– Clean the paper filter element 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.
– Insert the dry pre-filter on the paper filter element and fit both in the air filter plate
(5). Ensure that the air filter sits firmly in the plate.
– Put the cover (2) on the air filter and fasten it with the nut (1) on the air filter plate
(5).
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 200 operation hours.
(Please see original spare parts and accessories for Order No. of filter element and pre-
filter)
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 0.5 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.
17 TROUBLESHOOTING
Fault Possible cause Remedy
Engine does not start
up
Control handle not
turned down. Press the control handle onto
the upper part of the bar
D .
Fuel tank empty.
Fill up with clean and fresh
fuel.
Spark plug connector
loose. Push plug connector in place
or have it checked by an
authorised workshop.
Spark plug defective or
soiled or electrodes worn
out. Replace or clean spark plug,
set electrode distance to 0.5
mm
Y .
Too much petrol feed to
engine (spark plug wet). Have it checked by an
authorised workshop.
Air filter soiled. Clean or replace the air filter
insert
W .
Engine power
decreasing
Air filter soiled.
Clean or replace the air filter
insert
W .
Spark plug clogged with
soot. Have it checked by an
authorised workshop.
Fuel old or soiled Empty the petrol tank and fill
with fresh petrol.
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.
Extreme vibration
Have it checked by an
authorized dealer
Unclean cut, lawn is
yellow
Blade blunt. Have it sharpened and
balanced by an authorized
dealer
Q .
Cutting height too low. Adjust to higher cutting height
I .
Engine speed too low. Have it checked by an
authorized dealer.
Mowing too fast. Adjust mowing speed.
Insufficient overlapping
of cuts when mowing. Tall grass conditions may
dictate that more overlapping
of cuts is required.
Lawn becomes matted. A lawn scarifier can remedy
the problem considerably
Ejection blocked
Engine speed too low.
Have it checked by an
authorized dealer.
Cutting height too low for
grass that is too high. Adjust to higher cutting height
I .
Pushing mower too fast. Adjust mowing speed.
Grass not dry. Let grass dry.
In case of faults and defects which have not been listed here, please contact the
nearest authorized dealer.
Repairs which require specialized knowledge should only be performed by a qualified
expert. Your authorized dealer will naturally also be glad to help if you do not wish to
perform the maintenance work described here yourself.
18 TECHNICAL DATA
Engine
Motor B&S 4-stroke motor, 850E I/C
Capacity 190 cm
3
Rotation speed 2800 min
-1
Power of Device 3.2 kW
Electrode gap 0.5 mm