Mountfield 480R, Руководство пользователя, Страница: 11 / 16

11
ENGLISH
GB
Clean the spark plug regularly (every 100 hours of
run time). 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 recommendations are as follows:
(fig. 16):
Champion J19LM (RJ19LM), spark gap 0.75 mm.
ADJUSTING CLUTCH CABLE
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. 21).
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 VARIATOR CABLE
If the speed difference between the settings in the
variator control giving the fastest speed (position 3
and ) appears insignificant or nothing at all, the
variator cable might need tightening (fig. 13).
1. Run the mower for a few minutes in position
.
2. If the variator cable shows some play in nipple
Y it needs tightening. Undo the locking nut X
and tighten the cable by unscrewing the nipple
Y until the cable ceases to show any play.
3. Tighten the locking nut X .
NOTE! Do not stretch the cable beyond the point
where there is no play in the nipple
Y . If the cable is
over-tightened, the drive belt could break and/or
other parts of the transmission be damaged. When
setting after e.g. belt change, always start with the
nipple
Y completely screwed in.
CHANGING BLADES
Wear protective gloves when changing
blades to avoid cutting yourself.
Check the blade system regularly. Check
particularly the curved area behind the
blade edge for traces of wear. If the blade
shows traces of damage it should be re-
placed. A worn blade creates imbalance
and can damage the mower.
Always check the blades after a collision. First dis-
connect the spark plug cable. If the blade system
has been damaged, defective parts should be re-
placed. Always use genuine spare parts.
To replace the blade, slacken the screw (fig. 22).
Fit the new blade so that the stamped logo is turned
up facing the blade holder (not facing the grass).
Reinstall the washer and screw. Tighten the screw
properly. Tightening torque 40 Nm.
When replacing the blade, the blade screw should
also be replaced.
The guarantee does not cover damage to the blade,
blade holder or engine caused by running into ob-
stacles.
When replacing the blade, the blade holder and
blade screw, always use genuine spare parts. Non-
genuine spare parts can entail a risk of injury or
damage, even if they fit the machine.
SHARPENING THE BLADES
Sharpening of the blades must be done by wet
method grinding, using a whetstone or a grind-
stone.
For safety reasons, the blades should not be sharp-
ened on an emery wheel. A very high temperature
could cause the blades to become brittle.
Once the blade has been sharpened, it
must then be balanced to avoid vibra-
tion damage.
STORAGE
WINTER STORAGE
Empty the fuel tank. Start the engine and let it run
until it stops. The same petrol must not remain in
the tank for more than one month.