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Specifications
Engine
STIHL single cylinder two-stroke engine
Displacement:
30.8 cm
Bore:
35 mm
Stroke:
32 mm
Engine power
1.3 kW
to ISO 8893
(1.8 bhp)
Max. engine speed
without drilling tool
12,300 rpm
Engine idle speed
2,800 rpm
Sound pressure level
L
peq
1)
to ISO 6081
101 dB (A)
Sound power level
1)
L
to ISO 3744
107 dB (A)
weq
Vibration
measurement
to ISO 8662
Idling
Left handle
2.6 m/s
Right handle
2.8 m/s
Vibration
measurement
to ISO 8662
Max. RPM
Left handle
2.1 m/s
Right handle
2.4 m/s
1) Weighted equivalent value includes
idling and racing with the same
duration of exposure
BT 121
Ignition System
Type
Electronic magneto ignition with
3
electronic speed governor
Spark plug (suppressed)
Bosch WSR 6 F, NGK BPMR 7 A or
Champion RCJ 6 Y (not for all markets)
Electrode gap
0.5 mm
Spark plug thread
M 14 x 1.25; 9.5 mm long
Fuel System
Carburetor
All position diaphragm carburetor with
integral fuel pump
Air filter
Paper filter element
Fuel tankl capacity
3
0.64 l (640 cm
)
2
2
2
2
Drilling Gear
Type
Two-stage spur gear drive
Gear ratio
47.5 : 1
Max. spindle speed
190 rpm
Max. torque at drilling spindle
79 Nm
Lubrication
STIHL gear lubricant for brushcutters
Weight
without drilling tool (auger)
9.4 kg
Dimensions
Length of unit
approx. 400 mm
Width of handle frame
approx. 530 mm
Height without drilling tool (auger)
approx. 340 mm
Rewind Starter
Starter rope: 3.0 mm diameter,
850 mm long
English
27
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