Stihl MS 170 Notice D'emploi page 50

English
17 Use extreme caution when cutting
small size brush and saplings
because slender material may catch
the saw chain and be whipped
toward you.
18 When cutting a limb that is under
tension be alert for spring-back.
19 This gas powered saw is classified
according CSA-Standard Z62.1 as
a class 1A saw.
48 MS 170, MS 170 C, MS 180, MS 180 C