Stihl MS 180 Product Instruction Manual - Page 19

Bow Guides, WARNING, A = Pull-in, To avoid pull-in, B = Pushback, To avoid pushback, Limbing

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7. Cut only one log at a time. 8. Use extreme caution when reentering a previous cut. 9. Do not attempt to plunge cut if you are not experienced with these cutting techniques. 10. Be alert for shifting of the log or other forces that may cause the cut to close and pinch the saw chain. 11. Maintain saw chain properly. Cut with a correctly sharpened, properly tensioned saw chain at all times. 12. Stand to the side of the cutting path of the chain saw. Bow Guides WARNING Do not mount a bow guide on any STIHL chain saw. Any chain saw equipped with a bow guide is potentially very dangerous. The risk of kickback is increased with a bow guide because of the increased kickback contact area. Low kickback saw chain will not significantly reduce the risk of kickback injury when used on a bow guide. A = Pull-in A Pull-in occurs when the saw chain on the bottom of the bar is suddenly stopped when it is pinched, caught or encounters a foreign object in the wood. The reaction of the saw chain pulls the chain saw forward and may cause the operator to lose control. Pull-in frequently occurs when the bumper spike of the chain saw is not held securely against the tree or limb and when the saw chain is not rotating at full speed before it contacts the wood. WARNING Use extreme caution when cutting small size brush and saplings which may easily catch the saw chain, be whipped towards you or pull you off balance. To avoid pull-in 1. Always start a cut with the saw chain rotating at full speed and the bumper spike in contact with the wood. 2. The risk of pull-in may also be reduced by using wedges to open the kerf or cut. 001BA037 KN 001BA038 KN B = Pushback English B Pushback occurs when the saw chain on the top of the bar is suddenly stopped when it is pinched, caught or encounters a foreign object in the wood. The reaction of the saw chain may drive the chain saw rapidly straight back toward the operator and may cause loss of chain saw control, which, in turn, may cause serious or fatal injury. Pushback frequently occurs when the top of the bar is used for cutting. To avoid pushback 1. Be alert to forces or situations that may cause material to pinch the top of the saw chain. 2. Do not cut more than one log at a time. 3. Do not twist the chain saw when withdrawing the bar from a plunge cut or underbuck cut because the saw chain can pinch. Limbing Limbing is removing the branches from a fallen tree. MS 170, MS 170 C, MS 180, MS 180 C 17

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MS 170, MS 170 C, MS 180, MS 180 C
English
17
7.
Cut only one log at a time.
8.
Use extreme caution when
reentering a previous cut.
9.
Do not attempt to plunge cut if you
are not experienced with these
cutting techniques.
10.
Be alert for shifting of the log or
other forces that may cause the cut
to close and pinch the saw chain.
11.
Maintain saw chain properly. Cut
with a correctly sharpened, properly
tensioned saw chain at all times.
12.
Stand to the side of the cutting path
of the chain saw.
Bow Guides
WARNING
Do not mount a bow guide on any STIHL
chain saw. Any chain saw equipped with
a bow guide is potentially very
dangerous. The risk of kickback is
increased with a bow guide because of
the increased kickback contact area.
Low kickback saw chain will not
significantly reduce the risk of kickback
injury when used on a bow guide.
A = Pull-in
Pull-in occurs when the saw chain on the
bottom of the bar is suddenly stopped
when it is pinched, caught or encounters
a foreign object in the wood. The
reaction of the saw chain pulls the chain
saw forward and may cause the
operator to lose control.
Pull-in frequently occurs when the
bumper spike of the chain saw is not
held securely against the tree or limb
and when the saw chain is not rotating at
full speed before it contacts the wood.
WARNING
Use extreme caution when cutting small
size brush and saplings which may
easily catch the saw chain, be whipped
towards you or pull you off balance.
To avoid pull-in
1.
Always start a cut with the saw
chain rotating at full speed and the
bumper spike in contact with the
wood.
2.
The risk of pull-in may also be
reduced by using wedges to open
the kerf or cut.
B = Pushback
Pushback occurs when the saw chain on
the top of the bar is suddenly stopped
when it is pinched, caught or encounters
a foreign object in the wood. The
reaction of the saw chain may drive the
chain saw rapidly straight back toward
the operator and may cause loss of
chain saw control, which, in turn, may
cause serious or fatal injury. Pushback
frequently occurs when the top of the bar
is used for cutting.
To avoid pushback
1.
Be alert to forces or situations that
may cause material to pinch the top
of the saw chain.
2.
Do not cut more than one log at a
time.
3.
Do not twist the chain saw when
withdrawing the bar from a plunge
cut or underbuck cut because the
saw chain can pinch.
Limbing
Limbing is removing the branches from a
fallen tree.
001BA037 KN
A
001BA038 KN
B