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                        SHINDAIWA OWNER’S/OPERATOR'S MANUAL
AHS2510 ARTICULATED 
HEDGE TRIMMER
 
    WARNING!
	 				 Always	 wear	 eye	 and	 ear	 pro-
tection	 when	 operating	 this	 machine!	
To	 minimize	 the	 risk	 of	 injury	 to	 yourself	
and	 others,	 read	 this	 manual	 and	 famil-
iarize	 yourself	 with	 its	 contents.
Part Number 68800-94313  Rev. 3/07                                                                                                                                                                 
                    
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                        Introduction Attention Statements Safety Instructions The Shindaiwa AHS510 Ar  ticulated Throughout this manual are special atten- Hedge Trimmer is designed and built to tion statements.                   DANGER! deliver superior performance and reliabil- ity without compromise to quality, comfort,  THE ARTICULATED HEDGE    DANGER! safety or durability.  TRIMMER IS NOT INSULATED   Shindaiwa’s high-performance engines  AGAINST ELECTRICAL SHOCK!  A	statement	preceded	by	the	 triangular	 represent
                    
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                        Safety Equipment and Labels Shaft Safety Label Cutter Guard Cutter Blade  Scabbard Stop Switch IMPORTANT! Caution,	Danger,	Warning,	and	 Throttle  OperationInformation 	 Labels: 	 Interlock Handle Makesure 	 all 	 information 	 labels 	 	are	 undamagedand 	 	readable.		Imme - diately	replace	damagedor 	 missing 	 	 information	labels.		New	labels	are	 available	from	yourlocal 	 authorized 	 	 Shindaiwa	dealer. Figure 1 Operating Precautions WARNING! n	 Alwaysstop 	 the 	 	engineimmediately 	 	 n
                    
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                        Operating the Articulated Hedge Trimmer CAUTION! Always wear a hard hat to reduce  n	 Alwaysmaintain 	 the 	 articulated 	 	 the risk of head injuries during  hedge	trimmer	according	to	this	 operation of this machine. owner’smanual 	 and 	 follow 	 	the	 recommended	scheduled	mainte - Secure long hair  nance.	 so it is above  Always wear eye and hearing protec- n	 Nevermodify 	 or 	 disable 	 any 	 of 	 	the	 shoulder level. tion. Shindaiwa recommends wearing  hedgetrimmer’s 	 safety 	 devices.
                    
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                        Prior To Assembly Product Description Using Figure 3 as a guide, familiarize your- Air Filter  Spark self with the Shindaiwa AHS510 articulat - Assembly Hedge Trimmer Cutter  Plug Assembly ed hedge trimmer and its various compo- nents. Understanding your machine helps  Stop Switch ensure top performance, longer service life,  Cutter  and safer operation. Assembly   Before assembling, make sure you have Adjustment  Lever all the components required for a complete  Cutter Blade  unit: Scabbard Fu
                    
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                        Assembly Connect the Powerhead/Outer  Tube to the Gearcase Gearcase/Cutter  1.  Place the powerhead/outer Tube As- Assembly sembly on a clean, flat surface, spark  plug facing up. .  Use the 4mm hex wrench to loosen the  Tube  tube clamp and index screw. Verify that  Clamp the D-shaped shim washer is positioned  as shown in Figure 4. CAUTION!  Outer Tube Donot 	 	remove	the	D-shaped	shim	 washer!	Theshim 	 washer 	 	prevents	 Index Screw damage	from	overtightening	the	tube	 D-Washer clampscrew.
                    
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                        Adjusting the Hedge Trimmer Cutter Assembly Various blade  . With the index finger of your left  positions possible WARNING! hand, press the latch lock. With your  left thumb, press the latch release.                 	 The	cutterblades 	 are 	 very 	 sharp. 	 	 See Figure 6. Donot 	 	graspthe 	 blades 	 with 	 your 	 	 hands.	Donot 	 allow 		 the 	 blades 	 to 	 	 contact	yourbody. 	 	 IMPORTANT! Alwaysuse 	 gloves 	 when 	 	working	near	the	 cutterassembly. 	 	 The cutter assembly  Adjustment 
                    
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                        Mixing Fuel CAUTION! n Use only fresh, clean unleaded gasoline  CAUTION! with an octane rating of 87 or above. This engine is certified to operate on  Some	gasolinescontain 	 	alcohol	as	 n Mix all fuel with Shindaiwa Premium a50:1 	 	mixture	consisting	of	unleaded	 an	oxygenate!	Oxygenated	fuelsmay 	 	 ONE -cycle Mixing Oil at a gasoline/  gasoline	and	ISO-L-EGD	or	JASOFC 	 	 causeincreased 	 	operating	tem - oil ratio of 50:1 (1-gallon of gasoline to class2-cycle 	 mixing 	 oil 	 only. 	 pera
                    
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                        Starting the Engine  IMPORTANT! IMPORTANT! Engine	ignitionis 	 	controled	by	a	two	 If	theengine 	 fails 	 to 	 start 	 	after	several	 positionswitch 	 	mountedon 	 the 	 throttle 	 	 attempts	with	the	choke	in	theclosed 	 	 housinglabeled, 	 	"I"	for	ONor 	 	START	and	 position, the engine may be flooded 	 "O"for 	 	OFFor 	 	STOP. with fuel. If flooding is suspected, 	 Make sure the  move	the	chokelever 	 	tothe 	 	openposition 	 	 cutting attach- ment and	repeatedlypull 	 the 	 	recoil	starte
                    
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                          Stopping the Engine Idle the engine briefly before stopping  (about  minutes), then slide the ignition  switch to the “O” (Engine OFF) position. OFF Figure 14 Adjusting Engine Idle NOTE:            WARNING! Carburetor fuel mixture adjustments are  preset at factory and cannot be serviced in  The	cutting	blades	mustNEVER 	 	move	 the field. (oscillate)	at	engine	idle!	If	the	idle	 speed	cannot	beadjusted 	 	by	the	pro - cedure	describedhere, 	 	return	theunit 	 	 to	your	Shindaiwa	dealerfor 	 
                    
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                        General Maintenance IMPORTANT! MAINTENANCE,	REPLACEMENT,	OR 	 WARNING! WARNING! REPAIR	 OF	 EMISSION	 CONTROL	 DEVIC- Before	performingany 	 maintenance, 	 	 ESAND 	 SYSTEM 	 	MAYBE 	 PERFORMED 	 	 Non-standard	partsmay 	 	not	operate	 repair,or 	 cleaning 	 work 	 	on	the	 BY	ANY	REPAIRESTABLISHMENT 	 	OR	 properly	withyour 	 	unit	and	may	cause	 machine,make 	 	surethe 	 engine 	 and 	 	 INDIVIDUAL.HOWEVER, 	 WARRANTY 	 	 damageand 	 lead 	 to 	 personal 	 	injury. cuttingattachment 	 are 	 co
                    
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                        Cutter Blade Adjustment Adjust blades as follows (Figure 17):  Locknut WARNING! Guide Bar 1. Loosen all blade locknuts at least one  full turn. Thecutter 	 	blades	are	very	sharp!	 Alwayswear 	 gloves 	 when 	 	working	 . Tighten each blade shoulder bolt firmly,  aroundthe 	 cutter 	 assembly. 	 and then loosen the shoulder bolts 1/4  to 1/ turn. Cutter Blades Washer  3. Working from the gearcase end, lock Shoulder (should turn  CAUTION! freely) Bolt each bolt in place by firmly tightening  Fi
                    
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                        50-Hour Maintenance Every 50 hours of operation  c. Slide the gearcase out of the tube. n Use a wire hook to extract the fuel filter  (more	frequentlyin 	 dusty 	 	or	 	 from inside the fuel tank (Figure 3). In -  Using a grease gun, pump lithium-base  spect the fuel filter element. If it shows  dirty	conditions): grease (about 10 grams) into the grease  signs of contamination from debris,  fitting on the gearcase until you see old  n Remove and clean the cylinder cover  replace it with a genui
                    
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                        Spark Arrester Screen Maintenance If the engine becomes sluggish and low on  power, check and clean the spark arrester  Engine Cover  screen. Screws Engine Cover WARNING! Never	operate	the	unit	with	a	damaged	 or missing muffler or spark arrester!  Operatingwith 	 missing 	 or 	 	damaged	 spark arrester is a fire hazard and  could	also	damage	your	hearing. Muffler Muffler 1. With a 3 mm hex wrench remove the  Gasket 4 engine cover screws and the engine  cover. See Figure 4.  . With a 4 mm hex 
                    
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                        Troubleshooting Guide  ENGINE DOES NOT START OR HARD TO START What To Check Possible Cause Remedy Faulty recoil starter. Does the engine crank? NO Fluid in the crankcase. Consult with an authorized servicing dealer. Internal damage. YES Loose spark plug. Tighten and re-test. Good compression? NO Excess wear on cylinder, piston, rings. Consult with an authorized servicing dealer. Valves not seating. YES Fuel incorrect, stale or contaminated; Refill with fresh, clean unleaded gasoline with  Does t
                    
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                        Troubleshooting Guide (continued) ADDITIONAL PROBLEMS  LOW POWER OUTPUT What To Check Possible Cause Remedy Operator is overworking the unit. Cut at a slower rate.  Is the engine overheating?     Carburetor mixture is too lean. Consult with an authorized servicing dealer.     Improper fuel ratio. Refill with fresh, clean unleaded gasoline with    a pump octane of 87 or higher mixed with    a -cycle air cooled mixing oil that meets or    exceeds ISO-L-EGD and/or JASO FC classified    oils at 50:
                    
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                          Troubleshooting Guide (continued) ADDITIONAL PROBLEMS  ADDITIONAL PROBLEMS Symptom Possible Cause Remedy Clogged air filter. Clean the air filter.  Poor acceleration.     Clogged fuel filter. Replace the fuel filter.     Lean fuel/air mixture.  Consult with an authorized servicing dealer.     -1 Idle speed set too low. Adjust: 3,000 (5300) rpm (min )  Switch turned off. Reset the switch and restart. Engine stops abruptly.    Fuel tank empty. Refuel. See page 8.   Clogged fuel filter. Replace fuel fi
                    
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                        The following statement only applies to United States and its territories Shindaiwa Corporation Federal Emission Design And Defect Limited Warranty   Utility And Lawn And Garden Engines Shindaiwa	Corporationwar 	 rantsto 	 the 	 initial 	 	purchaserand 	 each 	 	 MAINTENANCE AND REPAIR REQUIREMENTS subsequentowner, 	 that 	 this 	 	utilityequipment 	 engine 	 (her 	 ein	 You are responsible for the proper use and maintenance of the engine.  engine)	is	designed,	built	andequipped 	 to 	 	conform	
                    
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                        NOTES 19                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
                    
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                        Shindaiwa Inc. 11975 S.W. Herman Rd. Tualatin, Oregon 9706 USA Telephone: 503 69-3070 Fax: 503 69-6696 www.shindaiwa.com Shindaiwa Corporation Head Office:  6--11, Ozuka-Nishi  Asaminami-Ku, Hiroshima 731-3167, Japan Telephone: 81-8-849-0 Fax: 81-8-849-481 © 007 Shindaiwa, Inc.  Part Number 68800-94313 Revision  3/07 Printed in Japan Shindaiwa Tornado is a trademark,  and Shindaiwa is a registered trademark of Shindaiwa, Inc. Specifications subject to change without notice.