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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.

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-23

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-00

HC-331ES, HC-341ES

CONTENTS

 

page

1 SERVICE INFORMATION

 .............................. 2

1-1 Speci

fi

 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

 ...7

2-1  General adjusting rules ............................... 7
2-2  Presetting Idle adjust screw, Idle mixture 
needle and Hi speed mixture needle  .................... 7
2-3 Adjusting carburettor................................... 8 

Reference No.

 

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-23

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I S S U E D :     2 0 0 8 0 4

SERVICE DATA

HEDGE TRIMMER

HC-331ES
HC-341ES

(Serial number : 36000001 and after)

Summary of Contents for HC-331ES

Page 1: ...n 1 12 23A 00 HC 331ES HC 341ES CONTENTS page 1 SERVICE INFORMATION 2 1 1 Specification 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 to...

Page 2: ...gnition system combined with electronic speed governor Spark plug BPMR8Y Exhaust Muffler type Spark arrestor muffler Starter Type ES effortless start Rope diameter x length mm in 3 0 x 830 1 8 x 32 5...

Page 3: ...e air gaps mm in 0 3 0 4 0 012 0 016 Ignition timing at 1 500 r min BTDC 10 at 3 000 r min BTDC 18 at 8 000 r min BTDC 33 at 11 000 r min BTDC 14 Carburettor Venturi Size mm in 9 0 0 354 Throttle Bore...

Page 4: ...r case cover M 4 30 45 3 4 5 26 40 Cutter Cutter bolts M 6 5 15 0 5 1 5 5 13 Cutter nuts M 6 50 70 5 7 45 60 Cutter support M 5 50 70 5 7 45 60 Handle Rear handle set M 5 50 70 5 7 45 60 Regular bolt...

Page 5: ...6 0 063 E Piston ring side clearance Max 0 1 0 004 F Piston pin outer diameter Min 7 97 0 3138 G Piston ring width Min 1 45 0 057 H Piston ring end gap Max 0 5 0 02 K Con rod small end bore Max 12 025...

Page 6: ...897702 30131 Piston pin tool Removing and installing piston pin Use 8 mm dia adapter 7 897712 07930 2 pin wrench Removing and installing pawl carrier 8 897726 16431 Oil seal tool Installing crankcase...

Page 7: ...mixture needle Parts Required 2 limiter plug P N P005 001270 1 Remove the plugs from idle mixture needle hole A and hi speed mixture needle hole B using lim iter plug tool C as follows 1 Put limiter p...

Page 8: ...mixture needle G to obtain maximum WOT engine speed just before lean drop off using 2 5mm wide blade screw driver at WOT 7 Turn Hi speed mixture needle anticlockwise to reduce WOT engine speed 200 100...

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