Stihl MS 271 Notice D'emploi page 46

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greater than 25 mm. An automatic chain
brake activated upon kickback is mandatory,
so is a low kickback saw chain
The computed kickback angles are measured by
applying a computer program to test results from
a kickback test machine.
WARNING
In order to comply with the computed kickback
angle requirements of CSA Z62.3‑11, use only
the following cutting attachments:
► a bar and chain combination as listed in this
instruction manual
► other replacement saw chains for use on spe‐
cific powerheads or
► a low-kickback saw chain
STIHL offers a variety of bars and chains. STIHL
reduced-kickback bars and low-kickback chains
are designed to reduce the risk of kickback
injury. Other chains are designed to obtain
higher productivity or sharpening ease but may
result in a higher kickback tendency.
Please ask your STIHL dealer to properly match
your powerhead with the appropriate bar/chain
combinations to reduce the risk of kickback
injury. Low-kickback saw chains are recommen‐
ded for all powerheads. See the charts of the
STIHL Bar and Chain Information for details.
WARNING
Use of other, non listed bar/chain combinations
may increase kickback forces and increase the
risk of kickback injury. New bar/chain combina‐
tions may be developed after publication of this
literature, which will, in combination with certain
powerheads, comply with CSA Z62.3‑11. Check
with your STIHL dealer for such new combination
updates.
39.1 Definition of the Chain Saw
Classes according to
CSA‑Standard Z 62.1‑15
39.1.1 Class 1A
A fuel powered professional chain saw, intended
for use by trained workers, where the operator is
expected to use the chain saw for extended peri‐
ods of time on a daily basis
46
39.1.2 Class 1B
A fuel powered professional chain saw for tree
service, limited to a dry weight of 4.3 kg (9.5 lb),
intended for use by trained workers, where the
operator is expected to use the chain saw for
extended periods of time on a daily basis
39.1.3 Class 1C
A fuel powered consumer chain saw, intended
for general use by homeowners, cottagers,
campers, etc., and for general applications such
as clearing, pruning and cutting firewood
39.1.4 Class 2A
An electrically powered professional chain saw,
intended for use by trained workers, where the
operator is expected to use the chain saw for
extended periods of time on a daily basis
39.1.5 Class 2B
A battery powered professional chain saw, inten‐
ded for use in tree service work, limited to a
weight of 5 kg (11 lb) with battery
39.2 Definition of a Low-Kickback
Saw Chain according to
CSA‑Standard Z 62.3‑11
A replacement saw chain where the computed
kickback angle without brake (CKA
exceed 45° when tested on the standardized
generic kickback unit (GKU).
Table des matières
1 Indications concernant la présente Notice
d'emploi.....................................................47
2 Prescriptions de sécurité...........................48
3 Forces de réaction.................................... 53
4 Technique de travail..................................55
5 Dispositif de coupe....................................62
6 Montage du guide-chaîne et de la chaîne
(tendeur latéral).........................................63
7 Montage du guide-chaîne et de la chaîne
(tendeur rapide)........................................ 64
8 Tension de la chaîne (tendeur latéral)...... 66
9 Tension de la chaîne (tendeur rapide)...... 66
10 Capot........................................................ 67
11 Contrôle de la tension de la chaîne.......... 67
12 Carburant.................................................. 67
13 Ravitaillement en carburant...................... 68
14 Huile de graissage de chaîne................... 70
15 Ravitaillement en huile de graissage de
chaîne....................................................... 71
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