Echo SRM-420ES (L): SRM-420ES (U) User Manual

SERVICE INFORMATION SRM-420ES
2
1 SERVICE INFORMATION
1-1 Specifi cations
Model
SRM-420ES (L) SRM-420ES (U)
Dimentions*
Length mm (in)
1840 (72.4)
Width mm (in)
355 (14.0) 680 (26.8)
Heigh mm (in)
287 (11.3) 510 (20.1)
Dry weight* kg (lb)
8.3 (18.2) 8.8 (19.3)
Engine Type YAMABIKO, air-cooled, two-stroke, single cylinder
Rotation Anticlockwise as viewed from the output end
Displacement cm
3
(in
3
) 41.5 (2.53)
Bore mm (in) 40.0 (1.58)
Stroke mm (in) 33.0 (1.30)
Compression ratio 6.7
Carburettor Type Rotary type : Diaphragm, horizontal-draught, with primer
Model WALBRO WT-1046
Ignition Type
CDI (Capacitor discharge ignition) system
Digital magneto
Spark plug BPMR8Y
Exhaust Muffl er type Spark arrester muffl er with catalyst
Starter Type ES (effortless-start)
Rope diameter x length mm (in) 3.8 x 910 (0.15 x 35.9)
Fuel** Type Premixed two-stroke fuel
Mixture ratio 50 : 1 (2%)
Petrol Minimum 89 octane
Two-stroke engine oil ISO-L-EGD (ISO/CD13738), JASO FC/FD
Tank capacity L (U.S.fl .oz.) 0.68 (23.0)
Clutch Type Centrifugal, 2-shoe pivot
Handle Type
Front : Crescent loop with cushion grip
U-handle with integrated
control grip
Rear : Integrated control grip with cushion
Drive shaft Type Solid type with serration (10-tooth)
Diameter - Length mm (in) 8.0 - 1588 (0.31 - 62.52)
Housing OD - ID mm (in) 28.0 - 24.0 (1.10 - 0.94)
Main pipe Length mm (in) 1537 (60.5)
Gear case Reduction ratio 1.33
Gear tooth Spiral bevel gear
Lubrication
Lithium based grease or ECHO XTended Protection
TM
Lubricant
Cutter Type Nylon line cutter 3-tooth blade (255 mm)
Arbor diameter for blade mm (in) 25.4 (1.0)
Fastener type, size mm Left-hand thread nut, M10 x 1.25 pitch
Cutting rotation Anticlockwise as viewed from top
OD: Outer diameter. ID: Inner diameter. * Without shoulder harness and standard cutter.
** Refer to Operator’s manual.

Echo SRM-420ES (L): SRM-420ES (U) Specifications

General

Brand	Echo
Model	SRM-420ES (L): SRM-420ES (U)
Category	Trimmer
Language	English