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So that the mower cuts correctly and safely, keep the
cutting teeth sharp. In addition the cutting teeth should
be sharpened if:
• You have to make more effort than usual to cut.
• The cutting path is not straight.
• The vibrations increase.
• When cutting sawdust is produced instead of wood
chips.
Do not forget to always wear safety gloves when
sharpening the chain.
Make sure the mower chain is securely fixed when
sharpening the chain.
Make sure the engine is off when sharpening the
chain.
Use a special chainsaw file suitable for your chainsaw
chain.
Place the file on the edge of the cutting tooth between
points (A) and (B) and push forward always keeping an
angle of 30o. Sharpen all the teeth of a face always
sharpening with outward movements and maintaining
the 30o angle. When finished, change sides and
perform the same operation.
Check the safety height (C), this height must be
approximately 0.6 mm. A height (C) that is too high
will cause the chain to bite too much demanding a lot
of effort from the engine and a small height will not
allow the chain to cut.
Check the length of the cutting teeth. All teeth must
maintain the same length. If necessary, file the lengths
of the teeth until they are all identical.
7.1.3. CHAIN OIL OUTPUT
7.1.4. CHAIN BAR MAINTENANCE
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Disassemble the bar and check
that the lubrication hole (1) is not
clogged.
Reverse the mower bar
every time you spend 10
tanks of fuel to prevent it
from wearing down only
one side. The bar guide
must always maintain its
profile. Verify that it
maintains the constant
thickness throughout the
bar. Replace bar if
necessary.
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