Jonsered 70C 用户手册

 

English

 

 – 11

 

A chain is made up of a number of links, which are available 
in standard and low-kickback versions.

Combining these links in different ways gives different 
degrees of kickback reduction. In terms of kickback reduction 
alone, four different types of link are available.

 

When the cutting equipment supplied with your saw becomes 
worn or damaged you must replace it with one of the bars and 
chains recommended by us. See the Technical data section.

 

•

Length (inches/cm)

•

Number of teeth on bar tip sprocket (T). Small number = 
small tip radius = low risk of kickback.

•

Chain pitch (inches). The spacing between the drive links 
of the chain must match the spacing of the teeth on the 
bar tip sprocket and drive sprocket.

•

Number of drive links. The number of drive links is 
determined by the length of the bar, the chain pitch and 
the number of teeth on the bar tip sprocket.

•

Bar groove width (inches/mm). The groove in the bar must 
match the width of the chain drive links.

•

Chain oil hole and hole for chain tensioner. The bar must 
be matched to the chain saw design.

 

•

Chain pitch (inches)

•

Drive link width (mm/inches)

•

Number of drive links.

•

Level of kickback reduction. The level of kickback 
reduction offered by a chain is only indicated by its model 
number. See the Technical data section to find the model 
numbers of chains that are recommended for use with 
your model of chain saw.

•

Never use a blunt chain. When the chain is blunt you have 
to exert more pressure to force the bar through the wood 
and the cuttings will be very small. If the chain is very blunt 
it will not produce any cuttings at all. Wood powder would 
be the only result.