Servicing The Engine - Sabo 43-VARIO E Operator's Manual

18 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, 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. When tipping the mower forwards, make
sure that the ejection flap is not damaged. Secure the mower in the raised
position!
ATTENTION
When tilting the mower 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
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 hot.
– 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 screws (1) on the air filter cover (2) and remove the cover.
– Remove the paper filter element (3).
– If the paper filter element is slightly dirty, knock the dirt off, if very dirty or
damaged, replace it. Do not blast out the paper filter using compressed air. Do not
grease it.
– Attach the paper filter element to the air filter plate (4).
– Set the cover (2) in place and tighten the screws (1) in the air filter plate (4).
In the case of unfavourable conditions (heavy dust development), the mower must be
cleaned every time it is used, otherwise after 25 operating hours or every year.
(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
Safety instruction!
no. see original spare parts list and accessories).
See table for explanation of
Otherwise it is sufficient to clean the spark plug and set the electrode gap to 0.5 mm
symbols page 3
(for 47-VARIO E) or 0.76 mm (for 43-VARIO E). 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)
–
–
–
–
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19 TROUBLESHOOTING
Fault
Engine does not start
up
Engine power
decreasing
Engine runs irregularly
Mower will not move
forward
Drive speed cannot be
regulated
Extreme vibration
Cut not clean,
lawn turns yellow
12
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.
Possible cause
Control handle not
turned down.
Fuel tank empty.
Spark plug connector
loose.
Spark plug defective or
soiled or electrodes worn
out.
Too much petrol feed to
engine (spark plug wet).
Air filter soiled.
Battery not charged.
Start-up took longer than
5 seconds or has been
repeated too often.
Air filter soiled.
Spark plug clogged with
soot.
Fuel old or soiled
Air filter dirty.
Spark plug contaminated
with soot.
Drive control bracket not
pulled.
Cutting blade blunt.
Cutting height too low.
Motor speed too low.
Remedy
Press the control handle onto
the upper part of the bar D .
Fill up with clean and fresh
fuel.
Push plug connector in place
or have it checked by an
authorised workshop.
Replace or clean spark plug,
set electrode distance to 0.5
mm (for 47-VARIO E) or 0,76
mm (for 43-VARIO E,) Y .
Have it checked by an
authorised workshop.
Clean or replace the air filter
insert W .
Charge battery W1 , X1 .
If you experience start
difficulties, contrary to
expectations, the battery
must also be charged in
between.
Clean or replace the air filter
insert W .
Have it checked by an
authorised workshop.
Empty the petrol tank and fill
with fresh petrol.
Clean or replace air filter
insert W .
Have it cleaned by an
authorized dealer.
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
Have it sharpened and
balanced by an authorised
workshop Q .
Set higher cutting height I .
Have it checked by an
authorized dealer