Echo SRM-4605 - Manual (Page 2)

2
SERVICE INFORMATION
SRM-3805
SRM-4605
1 SERVICE INFORMATION
1-1 Specifications
OD: Outer diameter.
ID: Inner diameter.
*Without shoulder harness and cutter head.
**With standard cutter head.
***Install and use U-shaped handle when operating with steel blade.
Model SRM-3805 (L) SRM-3805 (U) SRM-4605(L) SRM-4605(U)
Dimensions Length* mm(in) 1820 (71.7) 1820 (71.7) 1820 (71.7) 1820 (71.7)
Width mm(in) 360 (14.2) 720 (28.3) 360 (14.2) 720 (28.3)
Height mm(in) 350 (13.8) 455 (17.9) 350 (13.8) 455 (17.9)
Dry weight** kg(lb) 8.1 (17.9) 8.7 (19.2) 8.1 (17.9) 8.7 (19.2)
Engine Type KIORITZ, air-cooled, two-stroke, single cylinder
Rotation Counterclockwise as viewed from the output end
Displacement cm 3 (in 3 ) 37.4 (2.284) 45.7 (2.790)
Bore mm(in) 38.0 (1.496) 42.0 (1.654)
Stroke mm(in) 33.0 (1.299) 33.0 (1.299)
Compression ratio 6.3 6.6
Carburetor Type Diaphragm, horizontal-draught
with primer without primer
Model WALBRO WT-297 WALBRO WT-120B
Venturi size-Throttle bore mm(in) 11.11 - 15.85 (0.437 - 0.624) 12.7 - 15.85 (1/2 - 0.624)
Ignition Type Capacitor discharge ignition system
in a single integrated piece
Spark plug Champion RCJ-7Y
Starter Type Automatic rewind
Rope diameter x length mm(in) 3.8 x 950 (0.15 x 37.4)
Fuel Type Premixed two-stroke fuel (Refer to Operator's manual.)
Tank capacity cm 3 (U.S.fl.oz.) 950 (32.1)
Clutch Type Centrifugal, 2-shoe pivot
Handle Type Front Crescent loop U-shaped Crescent loop U-shaped
Rear Integrated --- Integrated ---
control grip control grip
Drive shaft Type Solid
Diameter - Length mm(in) 8 - 1590 (0.31 - 62.6)
Housing OD - ID mm(in) 28 - 24.0 (1.10 - 0.94)
(Main pipe)
Length mm(in) 1530 (60.2)
Gear case Reduction ratio 1.33
Gear tooth Spiral bevel gear
Lubrication Lithium based grease
Cutter Type Nylon line cutter, 8-tooth blade***, 80-tooth blade***, Others
Pilot diameter mm(in) 25.4 (1.0)
Fastener type, size mm Left-hand thread nut, M10 x 1.25 pitch
Cutting rotation Counterclockwise as viewed from top