Instruction Manual

Oil tank capacity:
350 cc (0.35 l)
29.5 Weight
Weight (dry, without bar and chain):
MS 311: 6.2 kg
MS 391: 6.2 kg
29.6 Cutting Attachment
Actual cutting length may be less than the speci‐
fied length
29.6.1 Rollomatic E guide bars
Cutting lengths: 37, 40, 45 cm
Pitch: 3/8" (9.32 mm)
Groove width: 1.6 mm
Nose sprocket: 10-tooth
29.6.2 3/8" chains
Rapid Micro (36 RM) Type 3652
Rapid Super (36 RS) Type 3621
Rapid Super 3 (36 RS3) Type 3626
Pitch: 3/8" (9,32 mm)
Drive link gauge: 1.6 mm
29.6.3 Chain Sprockets
7-tooth for 3/8" (rim sprocket)
Max. chain velocity to ISO 11681
27.5 m/s
Chain speed at maximum power:
21.7 m/s
29.7 Noise and Vibration Data
For further details on compliance with Vibration
Directive 2002/44/EC see www.stihl.com/vib.
29.7.1
Sound pressure level L
p
to ISO 22868
MS 311: 105 dB(A)
MS 391: 105 dB(A)
29.7.2 Sound power level L
w
to ISO 22868
MS 311: 117 dB(A)
MS 391: 117 dB(A)
29.7.3 Vibration measurement a
hv, eq
to
ISO 22867
Handle, left Handle,
right
MS 311:
4.0 m/s
2
4.0 m/s
2
MS 391:
4.0 m/s
2
4.0 m/s
2
The K‑factor in accordance with Directive
2006/42/EC is 2.0 dB(A) for the sound pressure
level and sound power level; the K‑factor in
accordance with Directive 2006/42/EC is
2.0 m/s
2
for the vibration level.
29.8 REACH
REACH is an EC regulation and stands for the
Registration, Evaluation, Authorisation and
Restriction of Chemical substances.
For information on compliance with the REACH
regulation (EC) No. 1907/2006 see
www.stihl.com/reach.
29.9 Exhaust Emissions
The CO
2
value measured in the EU type approval
procedure is specified at www.stihl.com/co2.
The measured CO
2
value was determined on a
representative engine in accordance with a
standardized test procedure under laboratory
conditions and does not represent either an
explicit or implied guarantee of the performance
of a specific engine.
The applicable exhaust emission requirements
are fulfilled by the intended usage and mainte‐
nance described in this instruction manual. The
type approval expires if the engine is modified in
any way.
30 Ordering Spare Parts
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 nor‐
mal wear and tear. When purchasing these
parts, always quote the saw model, the part
numbers and names of the parts.
Model
Serial number
Guide bar part number
Chain part number
31 Maintenance and Repairs
Users of this machine may only carry out the
maintenance and service work described in this
user manual. All other repairs must be carried
out by a servicing dealer.
STIHL recommends that you have servicing and
repair work carried out exclusively by an author‐
ized STIHL servicing dealer. STIHL dealers are
regularly given the opportunity to attend training
English 30 Ordering Spare Parts
38 0458-542-0121-E