Echo CS-3500 User Manual

0

INTRODUCTION

We are constantly working on technical
improvement of our products. For this reason,
technical data, equipment and design are subject to
change without notice. All specifications,
illustrations and directions in this SERVICE DATA
are based on the latest products information
available at the time of publication.

CHAIN SAW

CS-3500

SERVICE DATA

1

01-34A-00 CS-3500

CONTENTS

page

1 SERVICE INFORMATION ............................ 2

1-1 Specifications ............................................ 2

1-2 Technical data .......................................... 3

1-3 Torque limits ............................................. 4

1-4 Special repairing materials ....................... 4

1-5 Service limits ............................................. 5

1-6 Special tools ............................................. 6

2. SERVICE HINT

2-1 Assembling clutch...................................... 7

Reference No. 01-34A-00

ISSUED : 199909

INDEX

1 SERVICE INFORMATION

1-1 Specifications

Dimensions Length* mm(in) 386 (15.2)

Width* mm(in) 223 (8.78)

Height mm(in) 258 (10.2)
Dry weight* kg(lb) 3.75 (8.27)
Engine Type KIORITZ, air-cooled, two-stroke, single cylinder

Two-piece casting, Ventilated piston
Rotation Clockwise as viewed from the output end
Displacement cm

3

(in3) 34.0 (2.075)
Bore mm(in) 38.0 (1.496)
Stroke mm(in) 30.0 (1.181)
Compression ratio 6.5

Carburettor Type Diaphragm horizontal-draught

Supplier and Model Walbro WT-504
Venturi size-Throttle bore mm(in) 11.11 - 15.85 (7/16 - 5/8)

Ignition Type CDI (Capacitor discharge ignition) system

in a single integrated piece, with electronic timing advancer

Spark plug BPMR7A, RCJ7Y

Starter Type Automatic rewind

Rope diameter x length mm(in) 3.0 x 890 (0.12 x 35.0)

Fuel Type Premixed two-stroke fuel (Refer to operator's manual.)

Tank capacity cm

3

(U.S.fl.oz.) 320 (10.8)
Clutch Type Centrifugal, 3-shoe slide
Guide bar / Saw chain lubrication type Automatic with volume adjuster

Tank capacity, oil cm

3

(U.S.fl.oz.) 180 (6.09)
Sprocket Type Spur

Number of teeth 6
Pitch in 3/8 Low profile

Guide bar Type 30RC50-3/8 35RC50-3/8 40RC50-3/8

Called length cm 30 35 40
Gauge in 0.050

Saw chain Number of drive links 47 53 58

Pitch in 3/8 Low profile
Gauge in 0.050

2

SERVICE INFORMATION CS-3500

*Without guide bar and saw chain

3

SERVICE INFORMATIONCS-3500

1-2 Technical data

Engine

Idling speed rpm 2800 - 3200
Operating speed rpm 8000 - 10000
High speed (No load full throttle)* rpm 11500 - 12000
Clutch-in speed rpm 4200 - 4800
Compression pressure kgf/cm

2

(psi) 7.7 (109)

Carburettor

Idle speed screw initial setting turn in 1 3/4
L needle initial setting turns back 1 1/4
H needle initial setting turns back 1 1/8
Test pressure kgf/cm2(psi) 0.5 (7.0)
Metering lever height mm(in) 1.65 (0.065) lower than diaphragm seat

Ignition system

Spark plug gap mm(in) 0.6 - 0.7 (0.024 - 0.028)
Minimum secondary voltage

at 1500 rpm

kV 18
Secondary coil resistance kΩ 1.7 - 2.2
Pole shoe air gaps mm(in) 0.30 - 0.40 (0.012 - 0.016)
Ignition timing °BTDC

at 1500 rpm 26.5
at 3000 rpm 26.5
at 8000 rpm 25

Chain oil discharge volume at 7000 rpm

cm

3

/min(U.S.fl.oz./min) 1.5 - 13 (0.05 - 0.45) adjustable

BTDC: Before top dead center.
*With guide bar and saw chain.