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7

Assembly

Before assembling, make sure you 

have all the components required for a 

complete unit:

 

Unit assembly

Prior To Assembly

 

Operator’s manual

 

Emission Control Warranty 

Statement 

 

Cutter blade cover

 

Assembly Tool(s)

Carefully inspect all components for 

damage.

IMPORTANT!

The terms “left”, “left-hand”, and 

“LH”; “right”, “right-hand”, and “RH”; 

“front” and “rear” refer to directions as 

viewed by the operator during normal 

operation. 

 

WARNING!

Hedge Trimmer blades are very sharp. Touching them may lead to severe personal injury. Avoid touching blades whenever 

possible, and always wear gloves to protect hands.

NOTE:

For normal cutting, Shindaiwa strongly recommends the blade guard be installed. In extreme conditions, such as 

commercial cutting, or when cutting thick and/or dense branches, efficiency may be increased 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 EMISSION DURABILITY (EMISSION COMPLIANCE PERIOD)

The 50 or 300 hour emission compliance period is the time span selected by the manufacturer certifying the 

engine emissions output meets applicable emissions regulations, provided that approved maintenance proce-

dures are followed as listed in the Maintenance Section of this manual.

Emission Control (Exhaust & Evaporative)

EPA 2010 and Later

The emission control system for the engine is EM (engine modification) and, if the second to last character of the En

-

gine Family on the Emission Control Information label (sample below) is “C”, “K”, or “T”, the emission control system 

is EM and TWC (3-way catalyst). The fuel tank/fuel line emission control system is EVAP (evaporative emissions). 

Evaporative emissions for California models are only applicable to fuel tanks.

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...

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