Husqvarna 3120XP manual Chain, Some terms that describe the bar and chain, Safety Instructions

SAFETY INSTRUCTIONS

Chain

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

None Standard Low-kickback

Cutting link

Drive link

Side link

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.

Level of
kickback Cutting link	Drive link	Side link
reduction
Low
Standard
High
Extra high

Some terms that describe the bar and chain

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.

Bar

•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

•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.

10 – English