Echo SRM-280T Operator's Manual

Also see for SRM-280T: Operator's manual Installation instructions

32 X7502310409© 1/2014 ECHO Inc.SPECIFICATIONS SRM-280TSPECIFICATIONSMODEL SRM-280TLength w/o cutter head 1802 mm (70.94 in.)Width 246 mm (9.69 in.)Height 349 mm (13.74 in.)Weight (dry) w/o cutter head 5.76 kg (12.7 lb.)Engine Type Air cooled, two-stroke, single cylinder gasoline engineBore 34.0 mm (1.34 in.)Stroke 31.0 mm (1.22 in.)Displacement 28.1 cc (1.71 cu. in.)Exhaust Spark arrestor muffler or spark arrestor muffler with catalystCarburetor Diaphragm w/purge pumpIgnition System Flywheel magneto, capacitor discharge ignition typeSpark Plug NGK BPM-8Y (Gap 0.65 mm (0.026 in.)Fuel Mixed (Gasoline and Two-stroke Oil)Fuel/Oil Ratio 50 : 1 Power Blend XTM ISO-L-EGD (ISO/CD 13738) and J.A.S.O. M345- FD,two-stroke, air-cooled engine oil.Gasoline Use 89 Octane unleaded. Do not use fuel containing methyl alcohol, more than 10%ethyl alcohol or 15% MTBE. Do not use alternative fuels such as E-15 or E-85.Oil Power Blend X TM Premium Universal 2-Stroke OilFuel Tank Capacity 0.64 lit. (21.6 US fl. oz.)Starter System Automatic Rewind StarterClutch Centrifugal TypeVibration Isolated System Rubber cushion on engine mount (heavy duty). Rubber grip on front handle.Operating Rod 25.0 mm aluminum TubeDrive Shaft 6.35 mm (1/4 in.) flexible shaftGear Case Ratio 2..07:1 ReductionRotating Direction Counter Clockwise; viewed from topCutter Head Speed Feed® 375 LH Nylon line head, Line capacity 6 m (20 ft.)Handle Front - loop, Rear handle (w/o rubber)Shoulder Harness OptionalIdle Speed 2,850 RPMClutch Engagement Speed 3,750 RPMWide Open Throttle Speed (W.O.T.)with Nylon Line Head 10,700 RPMwith Blade 11,000 RPM