Cutting Equipment - Jonsered BC 2228 Operator's Manual

The nylon lining inside the locking nut must not
be so worn that you can turn it by hand. The lining
should offer a resistance of at least 1.5 Nm (1,1 ft lb).
The nut should be replaced after it has been put on
approximately 10 times.

Cutting equipment

This section describes how to choose and maintain
your cutting equipment in order to:
● Reduce the risk of blade thrust.
● Obtain maximum cutting performance.
● Extend the life of cutting equipment.
IMPORTANT:
● Only use cutting attachments with the guards we
recommend. See the "TECHNICAL DATA" section.
● Refer to the instructions for the cutting attachment
to check the correct way to load the trimmer line
and the correct line diameter.
● Keep the teeth of the blade correctly sharpened.
Follow our recommendations. Also refer to the
instructions on the blade packaging.
● Maintain the correct blade setting. Follow our
instructions and use the recommended file gauge.
a WARNING:
Stop the engine before doing any
work on the cutting attachment. Ensure the cutting
attachment has stopped rotating completely.
Disconnect the lead from the spark plug.
a
WARNING:
Using an incorrect cutting
attachment or an incorrectly sharpened blade
increases the risk of kickback.
„ Cutting equipment
Grass blades and grass cutters are intended for
cutting coarse grass.
A trimmer head is intended for trimming grass.
„ General rules
Only use cutting attachments with the guards we
recommend. See the "TECHNICAL DATA" section.
Keep the teeth of the blade correctly sharpened.
Follow our instructions and use the recommended file
gauge. An incorrectly sharpened or damaged blade
increases the risk of accidents.
Check the cutting attachment for damage or cracks.
A damaged cutting attachment should always be
replaced.
„ Sharpening grass cutters and grass
blades
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:
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.
„ Trimmer head
IMPORTANT: Always ensure the trimmer line
is wound tightly and evenly around the drum;
otherwise the machine may generate vibration
which could be harmful.
Only use the recommended cutting attachments. See
the "TECHNICAL DATA" section.
Smaller machines generally require small trimmer
heads and vice versa. This is because when clearing
using trimmer line the engine must throw out the
trimmer line radially from the trimmer head and
overcome the resistance of the grass being cleared.
The length of the trimmer line is also important. A
longer trimmer line requires greater engine power than
a shorter trimmer line of the same diameter.
Make sure that the cutter on the trimmer guard is
intact. This is used to cut the trimmer line to the
correct length.
To increase the life of the trimmer line it can be soaked
in water for a couple of days. This will make the line
tougher so that it lasts longer.
7
Always discard a blade that is