TECHNICAL DATA
Technical data | 250R | 252RX | 265RX | |
Engine |
|
|
| |
Cylinder displacement, cu.in/cm3 | 2,45/40,2 | 3,1/50,9 | 3,97/65,1 | |
Cylinder bore, inch/mm | 1,73/44 | 1,77/45 | 1,89/48 | |
Stroke, inch/mm | 1,26/32 | 1,26/32 | 1,42/36 | |
Idle speed, rpm | 2700 | 2700 | 2250 | |
Recommended max. speed, rpm | 12500 | 14000 | 11500 | |
Speed of output shaft, rpm | 9190 | 10300 | 9120 | |
Max. engine output, acc. to ISO 8893 | 2,1/9000 | 2,4/9000 | 3,0/8400 | |
Catalytic converter muffler | No | No | No | |
Ignition system |
|
|
| |
Manufacturer/type of ignition system | EM/ET | EM/ET | SEM GA 6CD | |
Spark plug | NGK BPMR 7A/ | NGK BPMR 7A/ | NGK BPMR 7A/ | |
Champion RCJ 7Y | Champion RCJ 7Y | Champion RCJ 7Y | ||
| ||||
Electrode gap, inch/mm | 0,02/0,5 | 0,02/0,5 | 0,02/0,5 | |
Fuel and lubrication system |
|
|
| |
Manufacturer/type of carburetor | Walbro HDA | Walbro HDA | Tillotson HS | |
Fuel tank capacity, US pint/litre | 1,70/0,8 | 1,70/0,8 | 2,11/1,0 | |
Weight |
|
|
| |
Weight without fuel, cutting attachment and guard, Lbs/kg 20,3/9,2 | 19,6/8,9 | 23,8/10,8 | ||
Sound levels |
|
|
| |
(see note 1) |
|
|
| |
Equivalent sound pressure level at the user′s ear, |
|
|
| |
measured according to ANSI | 97/104 | 96/103 | 98/100 | |
max: |
|
|
| |
Vibration levels |
|
|
| |
Vibration levels at handles, measured according to ANSI |
|
|
| |
|
|
| ||
At idle, left/right handles, min.: | 2,7/3,2 | 2,8/2,8 | 4,5/4,0 | |
At idle, left/right handles, max.: | 3,5/6,0 | 4,5/3,9 | 5,1/4,6 | |
At max. speed, left/right handles, min.: | 1,0/1,0 | 1,2/1,4 | 3,0/3,9 | |
At max. speed, left/right handles, max.: | 2,1/2,0 | 1,6/1,7 | 3,9/5,1 | |
Note 1: Equivalent noise pressure level is calculated as the
working conditions with the following time distribution: 1/2 idle and 1/2 max. speed.
NOTE! Noise pressure at the user’s ear and vibration on the handles are measured with all the machine’s approved cutting equipment fitted. The table indicates the highest and lowest values.
English – 37
