8
1) The maximum rated speed of the trimmer head is not exceeded when using a DOLMAR trimmer head.
2) Figures derived in equal part from idle and top-speed operation (per EN-ISO 11806).
3) At max. power
Technical Data 230 C | 260 C | 330 C
Displacement cm3 22.6 | 25.6 | 32.6 25.6 | 32.6 | 42.7
Bore mm 31 | 33 | 36 33 | 36 | 40
Stroke mm 30 | 30 | 32 30 | 32 | 34
Rated capacity per ISO 8893 kW 0.7 | 0.8 | 0.97 0.8 | 0.97 | 1.27
Operating speed rpm 8,000 | 8,000 | 7,500 8,000 | 7,500 | 7,500
Maximum engine speed
with one-part metal cutting tool 1) rpm 7,370 I 7,370 I 8,100 7,370 I 8,100 I 7,370
Maximum spindle speed
with one-part metal cutting tool 1) rpm 10,000 10,000
Idling speed rpm 3,000 I 3,000 I 2,500 3,000 I 2,500 I 2,500
Carburetor Type diaphragm carburetor diaphragm carburetor
Ignition system Type electronic electronic
Spark plug Type NGK BPMR 8Y NGK BPMR 8Y
Electrode gap mm 0.6 - 0.7 0.6 - 0.7
Sound power level LWA av per ISO 10884 2) dB (A) 106.8 | 107.8 | 109 99.5 | 100.5 | 102
Sound pressure level LpA av at the workplace per ISO 7917 2) dB (A) 94.9 | 95.1 | 97.1 89.9 | 92 | 91.4
Vibration acceleration ah,wper ISO 7916 2)
- Right handle (idling speed/maximum speed) m/s2
5.1 / 5.7 | 2.1 / 6.2 | 4.8 / 5.5
- Left handle (idling speed/maximum speed) m/s2
4.0 / 6.2 | 5.0 / 5.3 | 5.3 / 6.5
- Round handle (idling speed/maximum speed) m/s2
7.5 / 6.1 | 4.6 / 9.5 | 4.7 / 6.5
- Handle on shaft (idling speed/maximum speed) m/s2
4.8 / 8.1 | 4.4 / 6.0 | 6.3 / 7.8
Fuel consumption per ISO 8893 3) kg/h 0.35 | 0.36 | 0.44 0.36 | 0.44 | 0.49
 SpecicconsumptionperISO88933) g/kWh 500 | 450 | 454 450 | 454 | 386
Fuel tank capacity l 0.6 | 0.6 | 0.8 0.6 | 0.8 | 0.9
Mixture ratio (fuel / DOLMAR two-stroke oil)
- when using DOLMAR oil 50:1 50:1
- when using other oils 40:1 40:1
Gear ratio 14:19 | 14:19 | 17:21 14:19 | 14:19 | 14:19
Weight (not including guard, cutting tool and fuel) kg 5.1 | 5.1 | 5.9 5.9 | 6.7 | 7.9
260 U | 330 U | 430 U
Shown: MS-260 U
Type plate (MS-260 U)
Indicate when ordering spare parts !
Serial number
Year of manufacture

Components

1 Cutting tool
2 Gear box
3 Guard (Cutter guard)
4 Shaft tube
5 Handle
6 Throttle (throttle trigger)
7 Combination“start/stop”(O/I)switch,half-throttlelock
8 Safety locking button (throttle trigger lockout)
9 Bowden cable guide
10 Tube handle holder
11 Stop knob for halfway throttle
12 Harness eyelet (suspension point)
13 Fuel tank cap
14 Spark plug cover
15 Starter grip
16 Type plate
17 Choke lever
18 Harness