30SpecificationsThese specifications are subject to change without notice.SRM-236ESL UExternal dimensions:Length × Width × Height mm 1770 × 340 × 330 1775 × 710 × 395Mass:Unit without cutting attachment and shield (ISO 11806)Unit with fuel, specified cutting attachment, shield andharnesskgkg4.96.25.67.2Volume: Fuel tank L 0.44Cutting attachment:Nylon line cutting headLine diameterLine lengthThreadSpecified blade diameterSpecified blade thicknessNumber of cutting teethBlade centre hole diameterBlade rotational speed at maximum allowable enginespeedmmmmmmmmmr/minF43.02 ×1 lineLeft-handed M10×1.252303.0325.48235Gear ratio: Gear ratio and lubrication 1.36 reduction and good quality lithium greaseRotational direction of output shaft seen from above: AnticlockwiseEngine:Type Air cooled 2-stroke single cylinderEngine displacementMaximum shaft brake power, measured in accordancewith ISO 8893Recommended engine idling speedEngine speed at maximum engine powermL (cm3)kWr/minr/min21.20.7130008000Recommended maximum engine speed (With STD at-tachment installed)r/min 9500 11200CarburettorIgnitionSpark plugStarterClutchDiaphragm typeFlywheel magneto - CDI systemNGK BPMR8YRecoil starterAutomatic centrifugal clutchFuel:OilRatioRegular grade petrol. Minimum 89 Octane unleadedpetrol is recommended. Do not use fuel containing me-thyl alcohol or more than 10 % of ethyl alcohol.Two stroke, air-cooled engine oil. ISO-L-EGD Standard(ISO/CD 13738), JASO FC,FD grade and ECHO Premi-um 50 : 1 oil.50 : 1 (2%)Fuel consumption at maximum engine powerSpecific fuel consumption at maximum engine powerL/hg/(kW•h)0.45469Vibration levels: (ISO 22867)ahv,eqm/s2m/s2Front handle 4.6Rear handle 4.1Right handle 4.1Left handle 3.7Sound pressure level: (ISO 22868) LpAeq dB(A) 92.9 93.0Guaranteed sound power level:(ISO 22868) LWA dB(A) 107 108