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Echo HC-331ES Service Data

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12-23A-00
SERVICE DATA
(Serial number : 36000001 and after)
INTRODUCTION
We are constantly working on technical im-
provement of our products. For this reason,
technical data, equipment and design are
subject to change without notice. All speci-
fications and directions in this SERVICE
DATA are based on the latest products infor-
mation available at the time of publication.
HC-331ES, HC-341ES

HEDGE TRIMMER

HC-331ES
HC-341ES
CONTENTS
1 SERVICE INFORMATION .............................. 2
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
2-1 General adjusting rules ............................... 7
2-3 Adjusting carburettor................................... 8
Reference No.
I S S U E D :
1
1
page
12-23A-00
2 0 0 8 0 4

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Summary of Contents for Echo HC-331ES

  • Page 1: Table Of Contents

    HC-331ES, HC-341ES 12-23A-00 SERVICE DATA HEDGE TRIMMER HC-331ES HC-341ES (Serial number : 36000001 and after) INTRODUCTION CONTENTS page We are constantly working on technical im- 1 SERVICE INFORMATION ......2 provement of our products. For this reason, 1-1 Specifi cation ..........2 1-2 Technical data ..........

  • Page 2: Service Information

    HC-331ES SERVICE INFORMATION HC-341ES 1 SERVICE INFORMATION 1-1 Specifi cations Model HC-331ES HC-341ES Dimensions Length mm(in) 1130 (44.5) 1375 (54.1) Width mm(in) 315 (12.4) Height mm(in) 210 (8.26) Dry weight kg(lb) 5.8 (12.7) 6.1 (13.4) Engine Type KIORITZ, air-cooled, two-stroke, single cylinder...

  • Page 3: Technical Data

    HC-331ES HC-341ES SERVICE INFORMATION 1-2 Technical data Model HC-331ES HC-341ES Engine Idling speed r/min 3000 +/- 300 Wide open throttle speed* r/min 10500 - 11700 Clutch engagement speed r/min 4600 - 5400 Compression pressure MPa (kgf/cm ) (psi) 0.7 (7.1) (101)

  • Page 4: Torque Limits

    HC-331ES SERVICE INFORMATION HC-341ES 1-3 Torque limits Descriptions Size kgf • cm N•m in•lbf Starter Pawl assembly and nut 160 - 200 16 - 20 140 - 175 system Starter case M 4* 25 - 35 2.5 - 3.5 22 - 30...

  • Page 5: Service Limits

    HC-331ES HC-341ES SERVICE INFORMATION 1-5 Service limits 5K243 5K228 5K229 5K230 5K231 5K016 5K042 5K244 5K219 5K171 5K232 Description mm (in) A Cylinder bore When plating is worn and aluminium can be seen Piston outer diameter Min. 33. 90 (1.335) Piston pin bore Max.

  • Page 6: Special Tools

    HC-331ES SERVICE INFORMATION HC-341ES 1-6 Special tools 2 : a=4mm Part Number Description Used for : 897801-33330 Tachometer PET-1000 Measuring engine speed to adjust carburettor 895610-79920 L-hex wrench (4 mm) Removing and installing hex. socket bolts (M5) 897701-06030 Bearing wedge...

  • Page 7: Carburettor Adjustment Procedure

    HC-331ES HC-341ES SERVICE INFORMATION 2 CARBURETTOR ADJUSTMENT PROCEDURE 2-1 General adjusting rules A. Before starting the unit for adjustment, check the following items. 1. The correct spark plug must be clean and properly gapped. 2. The air fi lter element must be clean and properly installed.

  • Page 8: Adjusting Carburettor

    HC-331ES SERVICE INFORMATION HC-341ES 2-3 Adjusting carburettor 1. Start engine and warm it up alternating r/min between WOT and idle every 10 seconds for 1 minute. 2. Adjust Idle mixture needle (D) and obtain maxi- mum idle speed just before lean drop off with 2.5 mm blade small screw driver.

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