Husqvarna T525 Owner Manual - Page 23

General information about how to sharpen the, cutters

Page 23 highlights

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 29, 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. • Chain oil hole and hole for chain tensioner. The guide bar must align with product. • Drive link width, mm/in. • 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. D PITCH = 2 D • Number of drive links. The number of drive links is decided by the type of guide bar. 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 • Bar groove width, in/mm. The groove width in guide bar must be the same as the chain drive links width. When you sharpen the cutter, think about the following: • Filing angle. 732 - 017 - 11.10.2019 23

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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
29
, 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:
Filing angle.
732 - 017 - 11.10.2019
23