Husqvarna 455 Rancher - Manual (Page 13)

English – 13
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 adjusting depth gauge setting
• When you sharpen the cutting tooth (A) the depth gauge
setting (C) will decrease. To maintain optimal cutting
performance the depth gauge (B) has to be filed down to
achieve the recommended depth gauge setting. See
instructions under the heading Technical data to find the
correct depth gauge setting for your particular chain.
Adjustment of depth gauge setting
• The cutting teeth should be newly sharpened before
adjusting the depth gauge setting. We recommend that
you adjust the depth gauge setting every third time you
sharpen the cutting teeth. NOTE! This recommendation
assumes that the length of the cutting teeth is not reduced
excessively.
• You will need a flat file and a depth gauge tool. We
recommend that you use our depth gauge tool to acheive
the correct depth gauge setting and bevel for the depth
gauge.
• Place the depth gauge tool over the chain. Detailed
information regarding the use of the depth gauge tool, will
be found on the package for the depth gauge tool. Use the
flat file to file off the tip of the depth gauge that protrudes
through the depth gauge tool. The depth gauge setting is
correct when you no longer feel resistance as you draw
the file along the depth gauge tool.
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.
455 Rancher, 460
• Undo the bar nuts that hold the clutch cover/chain brake.
Use the combination spanner. Then tighten the bar nuts
by hand as tight as you can.
• Raise the tip of the bar and stretch the chain by tightening
the chain tensioning screw using the combination
spanner. Tighten the chain until it does not sag from the
underside of the bar.
• Use the combination spanner to tighten the bar nuts while
lifting the tip of the bar at the same time. Check that you
can pull the chain round freely by hand and that it does not
sag from the underside of the bar.
The position of the chain tensioning screw on our chain saws
varies from model to model. See instructions under the
heading What is what? to find out where it is on your model.
!
WARNING! The risk of kickback is increased
if the depth gauge setting is too large!
!
WARNING! A slack chain may jump off and
cause serious or even fatal injury.