Husqvarna 343F, 345FX, 345FXT, 343R, 345RX Brush Cutter User Manual


 
12 –
English
GENERAL SAFETY PRECAUTIONS
Sharpening grass cutters and grass
blades
See the cutting attachment packaging for correct
sharpening instructions. Sharpen blades and cutters
using a single-cut at le.
Sharpen all edges equally to maintain the balance of the
blade.
Sharpening the saw blade
See the cutting attachment packaging for correct
sharpening instructions.
A correctly sharpened blade is essential for working efciently
and to avoid unnecessary wear to the blade and clearing saw.
Make sure that the blade is well supported when you le
it. Use a 5.5 mm round le with a le holder.
The ling angle is 15
°
. File alternate teeth to the right and
those in between to the left. If the blade has been heavily
pitted by stones it may be necessary to dress the top
edges of the teeth with a at le, in exceptional cases. If
so, this should be done before ling with a round le. The
top edges must be led down by the same amount for all
the teeth.
Adjust the blade setting. This should be 1 mm.
Trimmer head
Only use the recommended trimmer heads and trimmer
cords. These have been tested by the manufacturer to suit
a particular engine size. This is especially important when
a fully automatic trimmer head is used. Only use the
recommended cutting attachment. See the chapter on
Technical data.
Smaller machines generally require small trimmer heads
and vice versa. This is because when clearing using a
cord the engine must throw out the cord radially from the
trimmer head and overcome the resistance of the grass
being cleared.
The length of the cord is also important. A longer cord
requires greater engine power than a shorter cord of the
same diameter.
Make sure that the cutter on the trimmer guard is intact.
This is used to cut the cord to the correct length.
To increase the life of the cord it can be soaked in water
for a couple of days. This will make the line tougher so that
it lasts longer.
!
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 specied type.
IMPORTANT!
Always ensure the trimmer cord is wound tightly and evenly
around the drum, otherwise the machine will generate
harmful vibration.