Echo SRM-310S - Specifications

GRASS TRIMMER/BRUSH CUTTER
OPERATOR'S MANUAL
11
SPECIFICATIONS
* Install and use U-Handle when operating any model with blade.
MODEL -----------------------------------------------------SRM-310, SRM-310S, SRM-310U
Length w/o Cutter Head----------------------------------- 1820 mm (71.7 in.)
Width SRM-310/310S -------------------------------------250 mm (9.8 in.)
Width SRM-310U ------------------------------------------710 mm (28.0 in.)
Height SRM-310/310S -------------------------------------260 mm (10.0 in.)
Height SRM-310U -----------------------------------------420 mm (16.5 in.)
Weight (dry) w/o Cutter Head SRM-310 --------------- 6.0 kg (13.2 lb.)
Weight (dry) w/o Cutter Head SRM-310S -------------- 6.1 kg (13.4 lb.)
Weight (dry) w/o Cutter Head SRM-310U ------------- 6.5 kg (14.3 lb.)
Engine Type ------------------------------------------------Air cooled, two-stroke, single cylinder gasoline engine
Bore ----------------------------------------------------------36.0 mm (1.42 in.)
Stroke-------------------------------------------------------- 30.0 mm (1.18 in.)
Displacement -----------------------------------------------30.5 cc (1.86 cu. in.)
Exhaust ------------------------------------------------------Spark Arrestor Muffler
Carburetor --------------------------------------------------Walbro diaphragm model WYJ w/purge pump
Ignition System -------------------------------------------- Flywheel magneto, capacitor discharge (CDI)
Spark Plug -------------------------------------------------- NGK BPMR-8Y, (Gap 0.65 mm (0.026 in.)
Fuel ----------------------------------------------------------Mixed (Gasoline and Two-stroke Oil)
Fuel/Oil Ratio ----------------------------------------------- 50:1 ECHO High Performance, two-stroke air cooled engine oil
Gasoline -----------------------------------------------------89 Octane unleaded. DO NOT use fuel containing methyl alcohol,
more than 10% ethyl alcohol or 15% MTBE.
Oil ------------------------------------------------------------ 50:1 ECHO High Performance, two-stroke air cooled engine oil
Fuel Tank Capacity ---------------------------------------- 0.9 lit. (30.4 US fl. oz.)
Starter System ---------------------------------------------- Automatic Recoil Starter
Clutch -------------------------------------------------------Centrifugal Type
Drive Shaft SRM-310/310U ------------------------------- 1/4 in. Flex Shaft
Drive Shaft SRM-310S ------------------------------------- 7mm Spline Steel Shaft
Rotating Direction -----------------------------------------Counter Clockwise viewed from top
Cutter Head SRM-310/310S ------------------------------- Semi Auto Nylon line head (2-line)
Cutter Head SRM-310U ----------------------------------- Blade Capable
Handles* SRM-310/310S ----------------------------------Front-Loop, Right Grip
Handles* SRM-310U -------------------------------------- U-Handle
U-Handle SRM-310/310S ----------------------------------Optional kit
U-Handle SRM-310U --------------------------------------Standard
Shoulder Harness ------------------------------------------Standard HarnessHarness w/hip pad
Idle Speed--------------------------------------------------- 2500 - 3300 RPM
Wide Open Throttle Speed (W.O.T.)
with Nylon Line Head -------------------------------------9000 - 11000 RPM
Wide Open Throttle Speed (W.O.T.) with Blade ------- 9000 - 11500 RPM