Air Filter; Bevel Gear; Sharpening Grass Cutters And Grass Blades; Maintenance Schedule - Jonsered BC 2228 Operator's Manual

electrode gap is 0.024 inch (0.6 mm). The spark plug
should be replaced after about a month in operation or
earlier if necessary.
CAUTION:
Always use the recommended spark
plug type. Use of the wrong spark plug can damage
the piston/cylinder.

Air filter

The air filter must be regularly cleaned to remove dust
and dirt in order to avoid:
● carburetor malfunctions
● starting problems
● loss of engine power
● unnecessary wear to engine parts
● excessive fuel consumption
Clean the filter every 25 hours, or more regularly if
conditions are exceptionally dusty.
„ Cleaning the air filter
Remove the air filter cover and take out the filter.
Wash it clean in warm, soapy water. Rinse thoroughly.
Ensure that the filter is dry before refitting it.
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.

Bevel gear

The bevel gear is filled with the right quantity of grease
at the factory. However, before using the machine
you should check that the bevel gear is filled three-
quarters full with grease. Use special grease. The
grease in the bevel gear does not normally need to be
changed except if repairs are carried out.
Sharpening grass cutters and grass
blades
a WARNING:
Always stop the engine before
doing any work on the cutting attachment. This
continues to rotate even after the throttle has
been released. Ensure that the cutting attachment
has stopped completely and disconnect the lead
from the spark plug before you start to work on it.
● See the cutting attachment packaging for correct
sharpening instructions.
● Sharpen blades and cutters using a single-cut flat
file.
● Sharpen all edges equally to maintain the balance
of the blade.
a WARNING:
Always discard a blade that is
bent, twisted, cracked, broken or damaged in any
other way. Never attempt to straighten a twisted
blade so that it can be reused. Only use original
blades of the specified type.

Maintenance schedule

The following is a list of the maintenance that must
be performed on the machine. Most of the items are
described in the Maintenance section. The user must
only carry out the maintenance and service work
described in this Operator's Manual. More extensive
work must be carried out by an authorized service
workshop.
„ Weekly Maintenance:
● Clean the outside of the machine.
● Make sure the throttle trigger lock and the throttle
function correctly from a safety point of view.
● Check that the stop switch works correctly.
● Check that the cutting attachment does not rotate
at idle.
● Clean the air filter. Replace if necessary.
● Check that the cutting attachment guard is
undamaged and not cracked. Replace the cutting
attachment guard if it has been exposed to impact
or is cracked.
● Check that the trimmer head is undamaged and not
cracked. Replace the trimmer head if necessary.
● Check that the locking nut of the cutting equipment
is tightened correctly.
● Check that nuts and screws are tight.
● Check that there are no fuel leaks from the engine,
tank or fuel lines.
„ Monthly Maintenance:
● Check the starter and starter cord.
„ Annual Maintenance:
● Clean the outside of the spark plug. Remove it and
check the electrode gap. Adjust the gap to 0,6 mm
(1/32 inch) or replace the spark plug. Check that
the spark plug is fitted with a suppressor.
● Clean the outside of the carburetor and the space
around it.
● Check that the bevel gear is filled three-quarters full
with lubricant. Fill if necessary using special grease.
● Check the fuel filter from contamination and the
fuel hose from cracks or other defects. Replace if
necessary.
● Check all cables and connections.
● Check the clutch, clutch springs and the clutch
drum for wear. Replace if necessary by an
authorized service workshop.
● Replace the spark plug. Check that the spark plug
is fitted with a suppressor.
● Clean or replace the spark arrestor mesh on the
muffler.
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