Tensioning The Chain - McCulloch CS 340 Bedienungsanweisung

1 Filing angle
2 Cutting angle
3 File position
4 Round file diameter
It is very difficult to sharpen a chain correctly without the
right equipment. We recommend that you use our file
gauge. This will help you obtain the maximum kickback
reduction and cutting performance from your chain.
See instructions under the heading Technical data for
information about sharpening your chain.
WARNING! Departure from the
!
sharpening instructions considerably
increases the risk of kickback.
Sharpening cutting teeth
To sharpen cutting teeth you will need a round file and a
file gauge. See instructions under the heading Technical
data for information on the size of file and gauge that are
recommended for the chain fitted to your chain saw.
• Switch the engine off. (34)
• Check that the chain is correctly tensioned. A slack
chain will move sideways, making it more difficult to
sharpen correctly.
• Always file cutting teeth from the inside face. Reduce
the pressure on the return stroke. File all the teeth on
one side first, then turn the chain saw over and file the
teeth on the other side.
• File all the teeth to the same length. When the length
of the cutting teeth is reduced to 4 mm (5/32
chain is worn out and should be replaced. (9)
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. (8)
WARNING! The risk of kickback is
!
increased if the depth gauge setting is
too large!
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.
12 – English
GENERAL SAFETY PRECAUTIONS
) the
"
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

WARNING! A slack chain may jump off
!
and cause serious or even fatal injury.
WARNING! Always wear approved
!
protective gloves. Even a non-moving
chain can cause serious cuts to yourself
or persons you bump into with an
exposed 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. (10)
CS 340
• Switch the engine off. (34)
• Undo the bar nuts that hold the clutch cover/chain
brake. Use the combi-tool integrated in the rear
handguard or one with corresponding dimensions
(contact your servicing dealer (retailer) for a
replacement tool). Then tighten the barnuts by hand
as tight as you can. (6) (11)
• Raise the tip of the bar and stretch the chain by
tightening the chain tensioning screw using the combi-
tool. Tighten the chain until it does not sag from the
underside of the bar. (12)
• Use the combi-tool 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. (13)
CS 380
• Switch the engine off. (34)
• Release the knob by folding it out until it snaps open.
(14)
• Turn the knob anti clockwise to loosen the bar cover.
(15)
• Adjust the tension on the chain by turning the chain
tensioner wheel down (+) for tighter tension and up (-
) to loosen the tension. Lift tip of guide bar while
adjusting tension. (16)
• Tighten the clutch cover by turning the knob clockwise
while lifting tip of bar. (17)
• Fold the knob back in to lock the tensioning. (18)
1153988-26 Rev.3 2012-03-09