Air Intake Screen; Spark Plug; Air Filter; Cleaning The Air Filter - Jonsered BB 2280 Manuel D'utilisation

Air intake screen

Check that the air intake is not blocked on all sides
including the underside, for example, by leaves or
rubbish. A clogged air intake reduces the machine's
blowing capacity and increases the engine's working
temperature, which can result in engine failure. Stop the
engine and remove the object.
WARNING! Never use the blower if the
!
screen is not in place. Before use, check
that the screen is in place and
undamaged.

Spark plug

The spark plug condition is influenced by:
• Incorrect carburettor adjustment.
• An incorrect fuel mixture (too much or incorrect type
of oil).
• A dirty air filter.
These factors cause deposits on the spark plug
electrodes, which may result in operating problems and
starting difficulties.
Clean the outside of the spark plug. Remove it and check
the electrode gap. Adjust the gap to 0,6-0,7 mm or
replace the spark plug. Check that the spark plug is fitted
with a suppressor.
0,6-0,7
CAUTION! Always use the recommended spark plug
type! Use of the wrong spark plug can damage the piston/
cylinder.
18 – English
MAINTENANCE
Air filter
The air filter must be regularly cleaned to remove dust
and dirt in order to avoid:
• Carburettor malfunctions
• Starting problems
• Loss of engine power
• Unnecessary wear to engine parts.
• Excessive fuel consumption.
Clean the filter every 40 hours, or more regularly if
conditions are exceptionally dusty.
Avoid contact with hot surfaces on muffler, cylinder etc.
Contact can result in burns to the skin.
Cleaning the air filter
• Unscrew 2 knobs bolts and remove the air cleaner
cover.
• Remove the pre-filter and paper filter from the air filter
unit.
1 Air filter cover and knob bolt
2 Prefilter
3 Paper filter
NOTE!
Do not oil the filter.
An air filter that has been in use for a long time cannot be
cleaned completely. The filter must therefore be replaced
with a new one at regular intervals. A damaged air filter
must always be replaced.
• Refit the air filter and air filter cover.
1
2
3