Specifications - Stihl BT 131 Instruction Manual

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Specifications

Engine
STIHL single cylinder four-stroke engine
with mixture lubrication
Displacement: 36.3 cc
Bore: 43 mm
Stroke: 25 mm
Engine power to 1.4 kW (1.9 bhp)
ISO 8893: at 8,500 rpm
Idle speed: 2,800 rpm
Cut-off speed: 9,500 rpm
Valve clearance
Inlet valve: 0.10 mm
Exhaust valve: 0.10 mm
Ignition System
Electronic magneto ignition
Spark plug (resistor
type): NGK CMR 6H
Electrode gap: 0.5 mm
Fuel System
All position diaphragm carburetor with
integral fuel pump
Fuel tank capacity: 710 cc (0.71 l)
Drilling gear
Two-stage spur gear drive
22
Gear ratio: 47.5:1
Max. spindle speed: 200 rpm
Max. torque at drilling
spindle: 81 Nm
Lubrication: STIHL gear
lubricant for
brushcutters
Weight
Dry, without drilling tool
(auger): 10 kg
Dimensions
Length with handle
frame: 400 mm
Width with handle frame: 530 mm
Height without drilling
tool (auger): 365 mm
Noise and Vibration Data
Noise and vibration data are measured
at idling and maximum rated speed in a
ratio of 1:4.
For further details on compliance with
Vibration Directive 2002/44/EC see
www.stihl.com/vib.
Sound pressure level L to ISO 11201
p
92 dB(A)
Sound power level L to ISO 3744
w
100 dB(A)
Vibration measurement a
hv,eq
ISO 20643
90 mm earth auger bit
Left handle: 1.7 m/s
Right handle: 2.0 m/s
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
for the vibration level.
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.
Exhaust Emissions
The CO value measured in the EU type
2
approval procedure is specified at
www.stihl.com/co2.
The measured CO value was
2
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 maintenance
described in this instruction manual. The
type approval expires if the engine is
modified in any way.
to
2
2
2
BT 131