background image

2

WARNING!

The engine exhaust from 

this product contains chemicals 

known to the State of California 

to cause cancer, birth defects or 

other reproductive harm.

Introduction

The Shindaiwa H4 series of hand-held 

power equipment is designed and built 

to deliver superior performance and 

reliability without compromise to quality, 

comfort, safety or durability. Shindaiwa 

engines represent the leading edge of 

high-performance engine technology, 

delivering exceptionally high power 

with remarkably low displacement 

and weight. As an owner/operator, 

you’ll soon discover for yourself why 

Shindaiwa is simply in a class by itself!

Throughout this manual are special 

“attention statements”.

Attention Statements

WARNING!

A statement preceded 

by the triangular attention symbol 

and the word “WARNING” contains 

information that should be acted 

upon to prevent serious bodily injury.

CAUTION!

A statement preceded by the word 

“CAUTION” contains information 

that should be acted upon to 

prevent mechanical damage.

IMPORTANT!

A statement preceded by the word 

“IMPORTANT” is one that possesses 

special significance.

NOTE:

A statement preceded by the word 

“NOTE” contains information that is 

handy to know and may make your job 

easier.

 

DANGER!

A statement 

preceded by the triangular attention 

symbol and the word “DANGER” 

contains information that should be 

acted upon to prevent serious injury 

or death.

IMPORTANT!

The operational procedures described in this manual are intended to help you get the most from this unit as well as to protect 

you and others from harm. These procedures are guidelines for safe operation under most conditions, and are not intended to 

replace any safety rules and/or laws that may be in force in your area. If you have questions regarding your Shindaiwa hand-held 

power equipment, or if you do not understand something in this manual, contact Shindaiwa at the address printed on the back of 

this Manual.

Echo, Inc. reserves the right to make 

changes to products without prior 

notice, and without obligation to 

make alterations to units previously 

manufactured.

IMPORTANT!

The information contained in these 

instructions describes units available at 

the time of publication. 

Safety and operation labels

Contents

PAGE

PAGE

Read and follow this manual, 

make sure anyone using 

the trimmer does likewise. 

Failure to do so could result 

in serious personal injury or 

machine failure. Keep this 

manual for future reference.

Safety tip shoes or boots with 

non-slip sole should be worn.

Keep bystanders at least 

15 meters (50 feet) away 

from the operating trimmer 

to reduce the risk of being 

cut by the cutting blades or 

struck by falling objects or 

thrown debris.

Wear non-slip heavy-duty 

gloves.

The blades / cutting 

attachments are SHARP! 

Handle with care.

An articulated hedge trimmer 

has the potential to cause 

serious personal injury to 

the operator or bystanders 

if misused, abused or 

mishandled. You must 

observe all special safety 

instructions to reduce the risk 

of personal injury.

Safety ......................................... 3
Product Description .................... 6

Specifications

 ............................. 6

Emission control ......................... 7
Assembly .................................... 7

Mixing fuel ................................ 10
Filling the fuel tank.....................11
Starting the Engine  ...................11
Stopping the Engine ................. 13
Operation .................................. 14

Maintenance ............................. 15
Long Term Storage ................... 20
Troubleshooting Guide ............. 21
Product Registration ................. 27
Servicing Information ................ 32

PAGE

Summary of Contents for AH254

Page 1: ...NDAIWA OWNER S OPERATOR S MANUAL WARNING Always wear eye and ear protection when operating this machine To minimize the risk of injury to yourself and others read this manual and familiarize yourself...

Page 2: ...harm These procedures are guidelines for safe operation under most conditions and are not intended to replace any safety rules and or laws that may be in force in your area If you have questions regar...

Page 3: ...nders if misused abused or mishandled To reduce the risk of injury you must maintain control at all times and observe all safety precautions during operation Never permit a person without training or...

Page 4: ...tened before operation Inspect for broken missing or improperly installed parts or attachments Never use a cracked or warped cutter or cutter bar replace it with a serviceable one and make sure it fit...

Page 5: ...hat to reduce the risk of head injuries during operation of this machine Always wear eye and hearing protection Shindaiwa recommends wearing a face shield as additional face and eye protection Keep a...

Page 6: ...19 mm 20 4 in Clutch Type Automatic centrifugal clutch with bevel gear Gear Type Spur gears Gear Lubrication Lithium based grease Standard Equipment Tool kit blade scabbard Idle Speed 3 000 RPM Clutch...

Page 7: ...ed by trimming without the blade guard Blade Guard Removal Install An Emission Control Label is located on the engine This is an EXAMPLE ONLY information on label varies by engine FAMILY PRODUCT EMISS...

Page 8: ...extension when removing lock nuts in order to keep hands at a safe distance from sharp blades 3 Remove four 4 lock nuts B 4 Install blade guard 5 Secure blade guard with four 4 lock nuts 6 Adjust blad...

Page 9: ...e positions possible Cutter Assembly Positions IMPORTANT The latch lock provides an interlock to help prevent inadvertent depression of the latch release Latch Release Adjustment Lever Press the latch...

Page 10: ...product warranty Read and follow instructions in the Long Term Storage section of this manual Fuel Requirements Gasoline Use 89 Octane R M 2 mid grade or higher gasoline known to be good quality Gasol...

Page 11: ...om around the fuel filler cap 3 Remove the fuel cap and fill the tank with clean fresh fuel 4 Reinstall the fuel filler cap and tighten firmly 5 Wipe away any spilled fuel before starting engine CAUTI...

Page 12: ...ke and restart Press the primer bulb Make sure the attachment is clear of obstructions and pull recoil starter handle upward Hold the unit firmly Slide the ignition switch to the ON position ON WARNIN...

Page 13: ...topped After the engine starts allow the engine to warm up at idle 2 or 3 minutes before operating the unit If the engine does not continue to run repeat the appropriate cranking procedures for a cold...

Page 14: ...tly in front of the hedge e g reach over a flower bed Cut close to the ground from a standing position e g for low shrubs WARNING Moving parts can amputate fingers or cause severe injuries Keep hands...

Page 15: ...4 stroke engine As a hybrid the engine is lubricated by oil mixed with the gasoline and air from the carburetor that moves through and around the internal parts of the engine in a similar way that a 2...

Page 16: ...air stream at the inside face of the filter only CAUTION Never operate the unit if the air cleaner assembly is damaged or missing Lubricate the cutter assembly gearcase by pumping one or two strokes o...

Page 17: ...ponents fuel pick up line fuel return line tank vent line tank vent fuel cap and fuel tank If damage splitting or deterioration is noted the unit should be removed from service until it can be inspect...

Page 18: ...mpression stroke TDC the valves can be adjusted 2 Loosen adjuster lock nut so that the 2 5 mm hex socket head adjustment screw can turn freely 3 Insert 0 10 mm 0 004 in feeler gauge between valve stem...

Page 19: ...machine depends a great deal on proper cutter blade adjustment Properly adjusted blades will oscillate freely yet help prevent binding of cut material between blades Adjust blades as follows 1 Loosen...

Page 20: ...ase and exhaust emissions will stabilize Idle speed can be adjusted as required High Altitude Operation This engine has been factory adjusted to maintain satisfactory starting emission and durability...

Page 21: ...lter and or vent Priming pump not functioning properly The ignition switch is in O OFF position Shorted ignition ground Faulty ignition unit If the plug is wet excess fuel may be in the cylinder The p...

Page 22: ...d oils at 50 1 gasoline oil ratio Clean repair or replace as necessary Consult with an authorized Shindaiwa servicing dealer Service the air cleaner element Tighten or replace the spark plug Check the...

Page 23: ...red Replace the spark plug Check the Specifications section for the correct plug and gap for your unit Restart Idle engine until cool Symptom Possible Cause Remedy Engine stops abruptly Engine difficu...

Page 24: ...or have questions concerning Shindaiwa s Warranty Statement you can contact our Consumer Product Support Department at 1 800 673 1558 or contact us through the web at WWW SHINDAIWA COM PRODUCT WARRAN...

Page 25: ...lined in the operator s manual is the customer s responsibility Failures due to improper set up pre delivery service or repair service by anyone other than authorized Shindaiwa servicing dealer during...

Page 26: ...26 NOTES...

Page 27: ...never be sold or misused by ECHO Inc Registering your purchase enables us to contact you in the unlikely event of a service update or product recall and verifies your ownership for warranty considera...

Page 28: ...28 NOTES...

Page 29: ...29 NOTES...

Page 30: ...30 NOTES...

Page 31: ...31 NOTES...

Page 32: ...is also available on WWW SHINDAIWA COM When presenting your unit for Warranty service repairs proof of purchase is required Consumer Product Support If you require assistance or have questions concer...

Reviews: