Echo CS-500ES Service Data

01-50D-01

CS-500ES

SERVICE DATA

CHAIN SAW

1

0

ECHO:

CS-500ES

STAGE MODEL

(Serial number : 37000001 and after)

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 and directions in this SERVICE
DATA are based on the latest product infor­mation available at the time of publication.

CONTENTS

1 SERVICE INFORMATION

1-1 Specifi cation ............................................... 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 CARBURETTOR ADJUSTMENT PROCEDURE

2-1 General adjusting rules ............................... 7

2-2 Presetting Idle adjust screw, L mixture needle

and H mixture needle ........................................ 7

2-3 Adjusting carburettor................................... 8

.............................. 2

page

.. 7

3 SERVICE HINT for PET-9000

Reference No.

REVISED: 201201

........................ 8

01-50D-01

ISSUED: 201106

2

1 SERVICE INFORMATION

1-1 Specifi cations

Model CS-500ES

Dimensions Length* mm(in) 395 (15.55)

Width mm(in) 250 (9.84)

Height mm(in) 290 (11.42)

Dry weight* kg(lb) 4.8 (10.5)

Engine Type YAMABIKO, air-cooled, two-stroke, single cylinder

Rotation Clockwise as viewed from the output end

Displacement cm

Bore mm(in) 44.0 (1.732)

Stroke mm(in) 33.0 (1.299)

Compression ratio 7.8

Carburettor Type Diaphragm horizontal-draught

Model

Venturi size-Throttle bore mm(in) 13.5-15.85 (0.531-0.624)

Ignition Type CDI (Capacitor discharge ignition) system

Spark plug BPMR8Y

Starter Type ES (effortless)-start

Rope diameter x length mm(in) 3.8 x 750 (0.150 x 29.5)

Fuel Type Premixed two-stroke fuel

Mixture ratio 50 : 1 (2 %)

Petrol Minimum 89 octane gasoline

Two-stroke air cooled engine oi

Tank capacity L (U.S.fl .oz.) 0.49 (16.6)

Exhaust Muffl er type Spark arrester muf

Clutch Type Centrifugal type

Guide bar / Saw chain lubrication type Adjustable automatic oil pump

Oil Tank capacity L (U.S.

Auto oiler Type Clutch related type

Sprocket Type Floating rim

Number of teeth 7

Pitch in 0.325

* Without guide bar and saw chain.

SERVICE INFORMATION

3

(in3) 50.2 (3.063)

Walbro WT-1011 with Large D-shaped mixture needles

l

fl .oz.) 0.28 (9.5)

ISO-L-EGD (ISO/CD13738), JASO FC/FD

CS-500ES

Digital magneto

fl er

Cutting devices

Guide bar

Saw chain

Part No. 38RV58-325 45RV58-325 50RV58-325

Called length cm 38 45 50

Gauge in 0.058

Type Oregon 21BPX, Carlton K2L
Number of drive links 64 72 80
Pitch in 0.325

Gauge in 0.058

CS-500ES

1-2 Technical data

Engine

Idling speed r/min

Wide open throttle speed* r/min 11,800 - 12,500
Clutch engagement speed r/min 3,900

Engagement Minimum

Compression pressure MPa (kgf/cm

Ignition system

Spark plug gap mm(in) 0.6 - 0.7 (0.024 - 0.028)
Minimum secondary voltage at 1,000 r/min kV 14
Primary coil resistance

(Red Probe on stop terminal of module)

Secondary coil resistance kΩ 2.5 - 2.9
Pole shoe air gaps mm(in) 0.3 - 0.4 (0.012 - 0.016)
Ignition timing at 3,000 r/min °BTDC 17

PET-9000 Parameter 1 324

Carburettor

Idle adjust screw initial setting turns in** 2
L mixture needle initial setting turns out 1 1/2
H mixture needle initial setting turns out 3 1/8
Test Pressure, minimum MPa (kgf/cm
Metering lever height mm(in) 1.65 (0.06) lower than diaphragm seat

Chain oil discharge volume

†

at 8,000 r/min °BTDC 29
at 10,000 r/min °BTDC 35

Parameter 2 03

SERVICE INFORMATION

r/min 3,800

2

) (psi) 1.05 (10.7) (152)

Ω 300 - 340

2

) (psi) 0.05 (0.5) (7.0)

mL/min(U.S.fl .oz./min)

3,100 + 400

- 300

Factory set: 7 mL/min

3

BTDC: Before top dead centre.
* With 45 cm guide bar and properly adjusted saw chain.

**Set idle adjust screw to the point that its tip contacts throttle plate before initial setting.

†

If clutch engagement speed is lower than minimum r/min, replace clutch assembly with new one.