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Specifications
EPA / CEPA
The Emission Compliance Period
referred to on the Emissions
Compliance Label indicates the number
of operating hours for which the engine
has been shown to meet Federal
emission requirements.
Category
A = 300 hours
B = 125 hours
C = 50 hours
Engine
STIHL single cylinder two-stroke engine
Displacement:
4.31 cu.in
(70.7 cm
Bore:
1.97 in (50 mm)
Stroke:
1.42 in (36 mm)
Engine power to
5.6 hp (4.2 kW) at
ISO 7293:
9,500 rpm
Idle speed:
2,800 rpm
High speed setting
when performing
repairs (with bar and
chain):
13,500 rpm
Ignition System
Electronic magneto ignition
Spark plug (resistor
Bosch WSR 6 F,
type):
NGK BPMR 7 A
Electrode gap:
0.02 in (0.5 mm)
56
Fuel System
All position diaphragm carburetor with
integral fuel pump
Fuel tank capacity:
Chain Lubrication
Fully automatic, speed-controlled
reciprocating oil pump. Additional
manual oil flow control
Oil tank capacity:
Weight
dry, without bar and
chain:
Cutting Attachment
3
)
Recommended cutting attachments
complying with Section 5.11 of ANSI B
175.1-2000.
Observe notes on ANSI B 175.1-2000
and definition of "low kickback chain" in
chapter on "Safety Precautions and
Working Techniques".
Rollomatic E guide bars
Reduced kickback STIHL guide bar
(with green label)
Cutting lengths:
24.5 fl.oz
Pitch:
(0.725 L)
Groove width:
Nose sprocket:
3/8" saw chains
Low kickback STIHL saw chain (with
12.2 fl.oz
green label)
(0.360 L)
Rapid Super 3 (33 RS3) Type 3624
Pitch:
Drive link gauge:
Low kickback STIHL saw chain (with
green label)
14.8 lbs (6.7 kg)
Rapid Super 3 (36 RS3) Type 3626
Pitch:
Drive link gauge:
Chain sprocket
7--tooth for 3/8" (rim sprocket)
To ensure compliance with the kickback
properties required in Section 5.11 of
ANSI B 175.1-2000, only use
replacement chains that, when used
with this specific powerhead, comply
with Section 5.11 of the ANSI standard
or are classed as "low kickback" chains
according to ANSI B 175.1-2000.
Please ask your STIHL dealer for the
latest recommendations on new
bar/chain combinations developed after
publication of this instruction manual.
16, 18, 20 in
(40, 45, 50 cm)
3/8" (9.32 mm)
0.050 in (1.3 mm)
or
0.063 in (1.6 mm)
10-tooth
3/8" (9.32 mm)
0.050 in (1.3 mm)
3/8" (9.32 mm)
0.063 in (1.6 mm)
MS 441 C-Q
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