MS 311, MS 391
English
55
Chain sprocket
To comply with the 45 degree computed
kickback angle requirement of Section
5.11 of ANSI/OPEI B175.1-2012, use
replacement saw chains listed above or
elsewhere by STIHL as conforming with
that requirement when used on this
model chain saw or use saw chains
classified as "low kickback" in
accordance with
ANSI/OPEI B175.1-2012.
Since new bar/chain combinations may
be developed after publication of this
Manual, ask your STIHL dealer for the
latest STIHL recommendations.
Please enter your saw model, serial
number as well as the part numbers of
the guide bar and saw chain in the
spaces provided. This will make re-
ordering simpler.
The guide bar and saw chain are subject
to normal wear and tear. When
purchasing these parts, always quote
the saw model, the part numbers and
names of the parts.
See "Specifications" in this manual for
the recommended reduced kickback
cutting attachments.
Users of this unit should carry out only
the maintenance operations described
in this manual. STIHL recommends that
other repair work be performed only by
authorized STIHL servicing dealers.
Warranty claims following repairs can be
accepted only if the repair has been
performed by an authorized STIHL
servicing dealer using genuine STIHL
replacement parts.
Genuine STIHL parts can be identified
by the STIHL part number, the
{ logo and, in some cases, by
the STIHL parts symbol K. The
symbol may appear alone on small
parts.
Low kickback STIHL saw chain (with
green label)
Rapid Micro 3 (36 RM3) Type 3664
Rapid Super 3 (36 RS3) Type 3626
Pitch: 3/8" (9.32 mm)
Drive link gauge: 1.6 mm (0.063 in)
7-tooth for 3/8" (rim sprocket)
Ordering Spare Parts
Model
Serial number
Guide bar part number
Chain part number
Maintenance and Repairs
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General
Weight and Dimensions
