English
stay clean and need no service or
maintenance. If you experience loss of
performance and you suspect a clogged
screen, have your muffler maintained by
a STIHL servicing dealer.
Kickback
The greater the force of the kickback
reaction, the more difficult it becomes for
the operator to control the saw. Many
factors influence the occurrence and
force of the kickback reaction. These
include chain speed, the speed at which
the bar and chain contact the object, the
angle of contact, the condition of the
chain and other factors.
Kickback may occur
when the moving saw
chain near the upper
quadrant of the bar nose
contacts a solid object or
is pinched.
Reactive Forces including Kickback
Warning!
Reactive forces may occur any time the
chain is rotating. Reactive forces can
cause serious personal injury.
The type of bar and saw chain you use
is an important factor in the occurrence
and force of the kickback reaction. Some
STIHL bar and chain types are designed
to reduce kickback forces. STIHL
recommends the use of reduced
kickback bars and low kickback chains.
ANSI B 175.1-2000 chain saw
kickback standard
§
5.11 of ANSI standard B 175.1-2000,
sets certain performance and design
criteria related to chain saw kickback.
The powerful force used to cut wood can
be reversed and work against the
To comply with § 5.11 of ANSI
B 175.1-2000:
operator. If the rotating chain is suddenly
stopped by contact with any solid object
such as a log or branch or is pinched, the
reactive forces may occur instantly.
These reactive forces may result in loss
of control, which, in turn, may cause
serious or fatal injury. An understanding
of the causes of these reactive forces
may help you avoid the element of
surprise and loss of control. Sudden
surprise contributes to accidents.
a)
Saws with a displacement of less
than 3.8 cubic inches (62 cm³)
The reaction of the cutting force of the
chain causes a rotational force on the
chain saw in the direction opposite to the
chain movement. This may fling the bar
up and back in a ligtening fast reaction in
an uncontrolled arc mainly in the plane
of the bar. Under some cutting
circumstances the bar moves towards
the operator, who may suffer severe or
fatal injury.
–
must, in their original condition,
meet a 45° computer derived
kickback angle when equipped with
certain cutting attachments,
–
and must be equipped with at least
two devices to reduce the risk of
kickback injury, such as a chain
brake, low kickback chain, reduced
kickback bar, etc.
The most common reactive forces are:
–
–
–
kickback,
pushback,
pull-in.
b)
Saws with a displacement of
Kickback may occur, for example, when
the chain near the upper quadrant of the
bar nose contacts the wood or is
pinched during limbing or when it is
incorrectly used to begin a plunge or
boring cut.
3
3.8
cubic inches (62 cm ) and
above
MS 261 C-Q
13
| Categories | Chainsaw Manuals, STIHL Chainsaw Manuals |
|---|---|
| Tags | STIHL MS 261 |
| Download File |
|
| Language | English, Español |
| Product Brand | STIHL. Stihl Inc, USA - Corporate phone: (757) 486-9100. International Support Information: http://stihl.com Email: info@stihl.com, Chainsaw |
| Document File Type | |
| Publisher | stihl.com |
| Wikipedia's Page | Stihl |
| Copyright | Attribution Non-commercial |
(1 votes, average: 5 out of 5)
Lawn and Garden readers have rated STIHL MS 261C Q Chainsaw Owners Manual 5.0 out of 5.0 based on 1 product reviews. Just bought this saw and it’s great so far