Husqvarna 128PS, Operator'S Manual

Page: 18 / 80

To sharpen the saw chain
Information about the guide bar and saw
chain
WARNING:
Use protective gloves
when you use or do maintenance on the
saw chain. A saw chain that does not
move can also cause injuries.
Replace a worn or damaged guide bar or saw
chain with the guide bar and saw chain combination
recommended by Husqvarna. This is necessary to
keep the safety functions of the product. Refer to
Accessories on page 24 , for a list of replacement
bar and chain combinations that we recommend.
• Guide bar length, in/cm. Information about the
guide bar length can usually be found on the rear
end of the guide bar.
• Number of teeth on bar tip sprocket (T).
• Chain pitch, in. The distance between the drive
links of the saw chain must align with the
distance of the teeth on the bar tip sprocket and
drive sprocket.
PITCH =
D
D
2
• Number of drive links. The number of drive links
is decided by the type of guide bar.
• Bar groove width, in/mm. The groove width in
guide bar must be the same as the chain drive
links width.
• Chain oil hole and hole for chain tensioner. The
guide bar must align with product.
• Drive link width, mm/in.
General information about how to sharpen
the cutters
Do not use a blunt saw chain. If the saw chain is
blunt, you must apply more pressure to push the
guide bar through the wood. If the saw chain is very
blunt, there will be no wood chips but sawdust.
A sharp saw chain eats through the wood and the
wood chips becomes long and thick.
The cutting tooth (A) and the depth gauge (B)
together makes the cutting part of the saw chain,
the cutter. The difference in height between the two
gives the cutting depth (depth gauge setting).
A
B
When you sharpen the cutter, think about the
following:
18 1780 - 001 - 08.02.2022