Tensioning the chain, General safety precautions – Husqvarna 323P4 User Manual

Page 11

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English

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GENERAL SAFETY PRECAUTIONS

File all the teeth to the same length. When the length of
the cutting teeth is reduced to 4 mm (0.16") the chain is
worn out and should be replaced.

General advice on setting raker clearance

When you sharpen the cutting teeth you reduce the raker
clearance (=cutting depth). To maintain optimal cutting
performance you must file back the raker lip to the
recommended height.

On a low-kickback cutting link the front edge of the raker
lip is rounded. It is very important that you maintain this
radius or bevel when you adjust the raker clearance.

We recommend that you use our raker gauge to achieve
the correct clearance and bevel on the raker lip.

Setting the raker clearance

Before setting the raker clearance the cutting teeth should
be newly sharpened.

We recommend that you adjust the raker clearance every
third time you sharpen the chain. NOTE! This
recommendation assumes that the length of the cutting
teeth is not reduced excessively.

To adjust the raker clearance you will need a flat file and a
raker gauge.

Place the gauge over the raker lip.

Place the file over the part of the lip that protrudes through
the gauge and file off the excess. The clearance is correct
when you no longer feel any resistance as you draw the
file over the gauge.

Tensioning the chain

The more you use a chain the longer it becomes. It is
therefore important to adjust the chain regularly to take up
the slack.

Check the chain tension every time you refuel. NOTE! A
new chain has a running-in period during which you
should check the tension more frequently.

Tension the chain as tightly as possible, but not so tight
that you cannot pull it round freely by hand.

-

Undo the bar nut.

-

Tension the chain by turning the chain tensioning
screw clockwise. Use a combination spanner or turn
by hand. The chain should be tensioned until it fits
snugly on the underside of the bar.

!

WARNING! The risk of kickback is increased
if the raker clearance is too large!

!

WARNING! A slack chain may jump off the
bar and cause serious or even fatal injury.

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