ENGLISH
GB
OIL CHANGE
Change the oil when the engine is warm
and the fuel tank is empty. In order to
prevent burns, take care while draining
as the oil is hot.
Change the oil the first time after 5 hours of oper-
ation, and subsequently every 50 hours of opera-
tion or once a season. Remove the dipstick, tilt the
mower and let the oil run out into a container. Be
careful not to let any oil run on to the grass.
Fill with new oil: Use SAE 30 or SAE 10W-30 oil.
The crankcase holds approx. 0.55 litres. Fill until
the oil reaches the “FULL/MAX” mark on the dip-
stick. Do not overfill.
AIR FILTER
A dirty and blocked air filter reduces the engine
output and increases engine wear.
Briggs & Stratton (fig. 20):
Undo the screw and
fold down the cover of the air cleaner. Carefully re-
move the filter cartridge. Knock it against a flat
surface. Replace the filter cartridge with a new one
if it is still dirty.
Clean the filter every three months or after every
25 hours of use, whichever occurs first. More fre-
quently if the engine is working on dusty ground.
Honda (fig. 21):
Remove the cover and take out the
filter. Carefully check the filter for holes or other
damage. A broken or damaged filter must be re-
placed.
To remove dirt, carefully knock the filter several
times against a hard surface or use compressed air
from the back of the filter to blow-clean. Do not try
to brush the filter clean as this forces dirt down into
the fibres. A very dirty filter should be replaced.
Clean the air filter after every 25 hours of opera-
tion or once a season. More frequently if the en-
gine is working on dusty ground.
SPARK PLUG
Never remove the spark plug or spark
plug cable when checking to see if there
is a spark. Use an approved test instru-
ment.
Clean the spark plug regularly (every 100 hours of
operation). Use a wire brush for cleaning.
Change the spark plug if the electrodes are exces-
sively burnt or if the plug is damaged. The engine
manufacturers give the following recommenda-
tions (fig. 6):
Briggs & Stratton:
Champion J19LM (RJ19LM),
Spark gap 0.7 - 0.8 mm.
Honda:
BPR6ES (NGK).
Spark gap 0.7 - 0.8 mm.
ADJUSTING THE CLUTCH CABLE
(Multiclip 51S)
If the drive does not engage when the clutch loop
is pressed against the handle, or if the lawnmower
feels cumbersome or slow, this may be because the
clutch in the transmission is slipping. To rectify
this situation, adjust the clutch cable as follows:
1. When the clutch loop is released, it should be
possible to push the mower without any resist-
ance. If this is not the case, screw in the nipple
T
until the mower can be pushed (fig. 22).
2. When the clutch loop is
pressed in approx. 2 cm (posi-
tion 1), there should be some
resistance when pushing the
lawnmower. With the clutch
loop fully pressed in (position
2) it should not be possible to
push the mower. Unscrew the
nipple
T
until this position is
achieved.
ADJUSTING THE CLUTCH CABLE
(PRO 51S)
Check the clutch function (fig. 23):
1. Push the mower forwards and backwards with
disengaged transmission.
2. Set the clutch control to the
position and
push the mower until the front wheels engage.
3. In this position, the spring
H
should be extend-
ed 6 mm from it’s unloaded position to provide
sufficient locking force in the transmission.
4. If the spring is not extended sufficiently, adjust
the wire nipple
I
at the handlebar.
5. First loosen the locking nut S and then adjust
the nipple
I
.
6. Set the clutch control to the
position and
check that the transmission is disengaged by
rolling the mower forwards and backwards.
