Shindaiwa Trimmer 62640 94313 User Manual

SHINDAIWA OWNER’S/OPERATOR’S MANUAL  
AH2510 ARTICULATED  
HEDGE TRIMMER  
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 with its contents.  
Part Number 62640-94313 Rev. 3/07  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Safety Equipment and Labels  
Shaft  
Safety Label  
Cutter Blade  
Scabbard  
Hand  
Guard  
Stop  
IMPORTANT!  
Switch  
Caution, Danger, Warning, and  
Operation Information Labels:  
Make sure all information labels are  
undamaged and readable. Immedi-  
ately replace damaged or missing  
information labels. New labels are  
available from your local authorized  
Shindaiwa dealer.  
Throttle  
Interlock  
High Voltage Label  
Figure 1  
Operating Precautions  
WARNING!  
n Never smoke or light fires near the  
hedge trimmer. Keep the trimmer  
away from excessive heat. Engine  
fuel is very flammable and fire could  
lead to serious personal injury or  
property damage.  
n Never transport the articulated  
hedge trimmer nor set it down with  
the engine running. An engine that’s  
running could be accidently acceler-  
ated causing the blades to oscillate.  
n Always stop the engine immediately  
and check for damage if you strike  
a foreign object or if the machine  
becomes tangled. Do not operate  
with broken or damaged equipment.  
n Make sure the cover is in place  
when transporting the articulated  
hedge trimmer.  
n When cutting a branch that is under  
tension, be alert for spring-back so  
that you will not be struck by the  
moving branch.  
n Make sure there are no missing or  
loose fasteners, and that the stop  
switch and throttle controls are  
working properly.  
n When carrying the articulated hedge  
trimmer by hand, the cutter attach-  
ment should be pointing backward  
with the cutter blade in the retracted  
or transporting position (see page 7  
for articulating adjustment proce-  
dures).  
n Stop the machine immediately if it  
suddenly begins to vibrate or shake.  
Inspect for broken, missing or  
improperly installed parts or attach-  
ments.  
n If a cutter should bind fast in a cut,  
shut off the engine immediately.  
Push the branch or tree to ease the  
bind and free the cutter.  
n Make sure the cutters are correctly  
adjusted before operating the articu-  
lated hedge trimmer (see page 12  
for cutter adjustment procedures).  
Never attempt cutter adjustment  
with the engine running!  
n Do not operate the articulated  
hedge trimmer with the muffler  
removed.  
n Always make sure the cutter attach-  
ment is properly installed and firmly  
tightened before operation.  
n Always stop the engine and allow  
it to cool before refueling. Avoid  
overfilling and wipe off any fuel that  
may have spilled.  
n Never use a cracked or warped  
cutter or cutter bar: replace it with  
a serviceable one and make sure it  
fits properly.  
n Make sure there is always good  
ventilation when operating the  
articulated hedge trimmer. Fumes  
from engine exhaust can cause  
serious injury or death. Never run  
the engine indoors!  
n Before starting the engine, make  
sure the cutter is not contacting  
anything.  
3
Download from Www.Somanuals.com. All Manuals Search And Download.  
Operating the Articulated Hedge Trimmer  
CAUTION!  
n Always maintain the articulated  
hedge trimmer according to this  
Always wear a hard hat to reduce  
the risk of head injuries during  
operation of this machine.  
owner’s manual and follow the  
recommended scheduled mainte-  
nance.  
n Never modify or disable any of  
the hedge trimmer’s safety de-  
vices.  
Always wear eye and hearing  
protection. Shindaiwa recommends  
wearing a face shield as additional  
face and eye protection.  
Secure long hair  
so it is above  
shoulder level.  
n Always use genuine Shindaiwa  
parts and accessories when  
repairing or maintaining this ma-  
chine.  
Always operate with  
both hands firmly  
gripping the machine.  
n Do not make unauthorized modi-  
fications to the articulated hedge  
trimmer.  
n Never allow the engine to run at  
high RPM without a load. Doing  
so could damage the engine.  
Wear non-slip heavy-duty  
gloves to improve your  
grip on the trimmer handle.  
Wear snug-fitting clothes  
that also permit freedom  
of movement. NEVER  
wear shorts!  
n When transporting the hedge  
trimmer in a vehicle, tie it down  
securely to prevent fuel spillage  
or damage to the machine.  
n Always stop the engine and allow  
it to cool before refueling. Avoid  
overfilling and wipe off any fuel  
that may have spilled.  
n Never place flammable material  
close to the engine muffler and  
never run the engine without the  
spark arrestor screen in place.  
Keep a proper footing and do not  
overreach—maintain your balance  
at all times during operation.  
n Always clear your work area of  
trash or hidden debris to help  
ensure good footing.  
n Keep the cutters sharp and prop-  
erly adjusted.  
Keep bystanders at least 50 feet  
(15 meters) away from the  
operating trimmer to reduce the  
risk of being struck by falling  
objects or thrown debris.  
n Keep the articulated hedge trim-  
mer as clean as possible. Keep it  
free of loose vegetation, mud, etc.  
Wear sturdy footwear  
with nonslip soles to provide  
good footing. Steel-toed  
safety boots are recommend-  
ed. Never operate machine  
bare-footed.  
Figure 3  
Figure 2  
4
Download from Www.Somanuals.com. All Manuals Search And Download.  
Product Description  
Prior To Assembly  
Using Figure 4 as a guide, familiarize your-  
self with the Shindaiwa AH2510 articulated  
hedge trimmer and its various compo-  
nents. Understanding your machine helps  
ensure top performance, longer service  
life, and safer operation.  
Air Filter  
Spark  
Assembly  
Plug  
Hedge Trimmer Cutter  
Assembly  
Cutter Assembly  
Adjustment Lever  
Stop Switch  
Before assembling, make sure you have all  
the components required for a complete  
unit:  
Outer  
Tube  
n Engine assembly  
Fuel Tank  
n Outer tube/cutter assembly  
Cutter Blade  
Scabbard  
Throttle  
Trigger  
Fuel Tank Guard  
n Kit with this manual and tool kit for  
Powerhead Assembly  
routine maintenance.  
Hand  
Guard  
Handle  
Grip  
n Cutter blade scabbard  
Carefully inspect all components for  
damage.  
Hedge Trimmer  
Cutter Assembly  
Latch Lock  
AH231_07  
WARNING!  
Recoil  
Starter  
Do not make unauthorized modifica-  
tions or alterations to your articulated  
hedge trimmer or its components.  
Latch  
Release  
Cutter Bar and  
Cutter Blades  
Gearcase  
Figure 4  
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.  
Specifications  
Model Name............................................................................AH2510  
Engine Model........................................................................ SF2510E  
Engine Type .............................4-cycle, vertical cylinder, air cooled  
Dry Weight .................................................................14.0 lbs./6.3 kg  
Bore x Stroke.............................................. 34 x 27 mm/1.34 X 1.06”  
Displacement.......................................................... 24.5 cc/1.5 cu. in.  
Carburetor .......................................... Walbro WYL diaphragm type  
Ignition System ...................... Fully electronic, program controlled  
Spark Plug..................................................................... NGK CMR5H  
Air Filter.......Non-reversible, heavy-duty, two -stage filter element  
Starting Method............................................................ Recoil starter  
Stopping Method..............................................................Slide switch  
Cooling System ...................................................................Forced air  
-1  
Engine Speed at Maximum Power Output..........7,500 rpm (min )  
Maximum Power Output.............................................1.1 hp/0.8 kW  
Transmission Type .............................Automatic, centrifugal clutch  
with bevel gear  
-1  
Engine Speed at Idling ..........................................3,000 rpm (min )  
Blade Length ............................................................. 22.3 in/567 mm  
Cutter Drive..........................................................................Spur gear  
Gear Lubricant................................................. Lithium based grease  
-1  
Maximum Engine Speed.....................................10,500 rpm (min )  
Fuel/Oil Ratio..........................................50:1 with Premium 2-cycle  
air cooled mixing oil  
Fuel Tank Capacity .......................................................590 ml/20 oz.  
Standard Equipment: Tool kit containing a spark plug wrench,  
4 mm hex wrench, and 8 x 10 mm spanner  
Optional Equipment: Harness and bracket  
Specifications are subject to change without notice.  
5
Download from Www.Somanuals.com. All Manuals Search And Download.  
Assembly: AH2510  
Spark Plug  
Tube Clamp  
Clamp Screw  
Mainshaft  
Outer Tube  
Grip  
Hex  
Wrench  
Trigger  
Housing  
Figure 6  
3. Slide the outer tube into the tube clamp  
until the tube bottoms. If installation  
is difficult, rotate the outer tube or  
main shaft slightly until you feel the  
mainshaft splines engage with the  
powerhead.  
Tube  
Clamp  
4. Position the outer tube so that the  
gearcase output shaft is facing left on  
muffler cover.  
Figure 5  
Connect the Outer Tube  
to the Powerhead.  
CAUTION!  
Do not force the shaft tube into the  
powerhead! Excessive force can dam-  
age the shaft tube and mainshaft.  
5. Slide the outer tube into the powerhead  
until the throttle grip just contacts the  
tube clamp.  
1. Place the powerhead on a clean, flat  
surface, spark plug facing up.  
6. Tighten the clamp screw firmly.  
2. Use the 4 mm hex wrench to loosen the  
tube clamp screw.  
Throttle Cable  
Connect the Throttle Cable  
Connect the throttle  
cable  
1. Loosen the air cleaner cover knob  
and remove the air cleaner cover.  
See Figure 7.  
Throttle  
Cable  
Filter  
Cover  
Cable  
Adjuster  
2. Slip the throttle cable into the cable  
adjuster and hook the bullet end of the  
cable onto the swivel. See Figure 8.  
Connect the Ignition Leads  
3. Connect the two ignition wires by  
pushing the bullet connectors together.  
See Figure 9.  
Cable Swivel  
4. Reinstall the air cleaner cover.  
Figure 7  
Figure 8  
CAUTION!  
Routing of wiring must not interfere  
with throttle or choke operation.  
Ignition  
Lead  
Figure 9  
6
Download from Www.Somanuals.com. All Manuals Search And Download.  
Assembly: Adjust Throttle Lever Free Play  
The throttle lever free play should be ap-  
proximately 3/16-1/4 inch (4-6 mm). See  
Figure 10. Make sure that the throttle  
lever operates smoothly without binding.  
If it becomes necessary to adjust the lever  
free play, follow the procedures and illus-  
trations that follow.  
3. Turn the cable adjuster in or out as  
required to obtain proper free play  
3/16-1/4 inch (4-6 mm). See Figure 12.  
4. Tighten the locknut.  
Cable  
Adjuster  
Lock  
Nut  
Figure 11  
1. Loosen the air cleaner cover knob  
3/16-1/4 inch (4-6  
mm) Throttle Free  
play  
and remove the air cleaner cover.  
See Figure 11.  
Figure 12  
2. Loosen the lock nut on the cable ad-  
juster. See Figure 12.  
Figure 10  
5. Reinstall the air cleaner cover.  
Adjusting the Hedge Trimmer Cutter Assembly  
4. Release the latch lock and the latch  
release. Make sure the latch lock and  
the latch release return securely to a  
locking position.  
2. With the index finger of your left hand,  
WARNING!  
press the latch release. With your left  
thumb, press the latch lock.  
n The cutter blades are very sharp.  
See Figure 14.  
Do not grasp the blades with your  
hands. Do not brush the blades  
against your body.  
5. Remove the scabbard from the cutter  
blade. The engine now may be started.  
Latch Release  
n Never run the engine nor operate  
the articulated hedge trimmer when  
the cutter assembly is in the stor-  
age/transport position.  
Adjusting the Hedge Trimmer Cut-  
ter Assembly for Desired Cutting  
Angles  
Various blade  
positions possible  
270°  
IMPORTANT!  
Always use gloves when working near  
the cutter assembly.  
120°  
Position the hedge trimmer on a flat, level  
surface with the engine resting on the fuel  
tank guard. Make sure the scabbard is in  
place on the blade.  
The cutter assembly  
can be adjusted to 10  
different positions rang-  
ing from 120° to 270°  
from the outer tube as  
shown in Figure 14.  
Refer to the steps on the  
previous page for adjust-  
ment procedures. Al-  
ways make sure the lock  
latch is securely locked  
after each adjustment.  
Latch Lock  
1. With your right hand, grasp the handle,  
located immediately behind the hand  
Figure 14  
guard. With your left hand, grip the ad-  
justment lever on the cutter assembly.  
See Figure 13.  
3. While holding the latch lock down, pivot  
the cutter assembly using the adjust-  
ment lever until it is straight with the  
outer tube (pivot 180°).  
IMPORTANT!  
The latch lock provides an interlock to  
help prevent inadvertent depression of  
the latch release.  
See Figure 15.  
Adjustment Lever  
Figure 16  
Adjustment Lever  
WARNING!  
Do not touch the cutter blades when  
the engine is running. The blades can  
oscillate even if the engine is idling.  
Figure 15  
Figure 13  
7
Download from Www.Somanuals.com. All Manuals Search And Download.  
Adjusting the Hedge Trimmer Cutter Assembly (continued)  
Gearcase rotated to the  
Adjusting the Cutter Assembly for  
Storage or Transportation  
1. With the engine off, install the scabbard  
onto the blade.  
storage/transportation position  
2. Using the procedures described on the  
previous page, rotate the cutter assem-  
bly so it is parallel to the tube. Make  
sure the latch lock and the latch release  
return securely to a locking position.  
See Figure 17.  
WARNING!  
Never run the engine when adjusting  
the cutter assembly to the storage  
position.  
3. Make sure the scabbard is in place on  
the cutters before storing or transporting.  
Figure 17  
Mixing Fuel  
CAUTION!  
CAUTION!  
Examples of 50:1 mixing quantities  
n 1 gallon of gasoline to 2.6 oz. mixing oil.  
n 5 liters of gasoline to 100 ml. mixing oil.  
n Some types of gasoline contain al-  
cohol as an oxygenate. Oxygenated  
gasoline may cause increased op-  
erating temperatures. Under certain  
conditions, alcohol-based gasoline  
may also reduce the lubricating  
This engine is designed to operate on  
a 50:1 mixture consisting of unleaded  
gasoline and ISO-L-EGD or JASO FC  
class 2-cycle mixing oil only. Use of  
non-approved mixing oils can lead to  
excessive carbon deposits.  
IMPORTANT!  
Mix only enough fuel for your immediate  
needs! If fuel must be stored longer than  
qualities of some 2-cycle mixing oils.  
30 days and  
oil with fuel stabilizer  
n Use only fresh, clean unleaded gasoline  
n Never use any type of gasoline  
containing more than 10% alcohol  
by volume! Generic oils and some  
outboard oils may not be intended  
for use in high-performance 2-cycle  
type engines, and should never be  
used in your Shindaiwa engine.  
is not used, it should first be treated with  
a fuel stabilizer such as STA-BIL™.  
with a pump octane of 87 or higher.  
n Mixed with 50:1 Shindaiwa ISO-L-EGD  
or JASO FC class 2-cycle mixing oil at a  
gasoline/ratio of 50:1 (1 gallon of gaso-  
line to 2.6 ozs mixing oil). Shindaiwa  
One meets or exceeds these require-  
ments.  
Oil is a registered JASO FC  
classified oil and also meets or exceeds  
ISO-L-EGD performance requirements.  
Shindaiwa One is recommended for use  
in all Shindaiwa low emissions engines.  
Shindaiwa One also includes a fuel  
stabilizer.  
Filling the Fuel Tank  
1. Place the unit on a flat, level surface.  
WARNING!  
2. Clear any dirt or other debris from  
around the fuel filler cap.  
Minimize the Risk of Fire!  
n ALWAYS stop the engine and al-  
low it to cool before refueling. Avoid  
overfilling and wipe off any fuel that  
may have spilled.  
3. Remove the fuel cap, and fill the tank  
with clean, fresh fuel.  
4. Reinstall the fuel filler cap and tighten  
firmly.  
n Wipe all spilled fuel and move the  
engine at least 10 feet (3 meters)  
from the fueling point and source  
before restarting!  
n NEVER start or operate this unit if  
there is a fuel leak.  
n NEVER start or operate this unit if  
the carburetor, fuel lines, fuel tank  
and/or fuel tank cap are damaged.  
n NEVER smoke or light any fires  
near the engine or fuel source!  
n NEVER place any flammable ma-  
terial near the engine muffler!  
n NEVER operate the engine without  
the muffler and spark arrester in  
good working condition.  
8
Download from Www.Somanuals.com. All Manuals Search And Download.  
Starting the Engine  
IMPORTANT!  
When the Engine Starts...  
Engine ignition is controlled by a two  
position switch mounted on the throttle  
housing labeled, "I" for ON or START and  
"O" for OFF or STOP.  
n After the engine starts, allow the engine  
to warm up at idle 2 or 3 minutes before  
operating the unit.  
Make sure  
the cutting  
attachment  
is clear of  
n Advancing the throttle makes the cut-  
ting attachment oscillate faster; releas-  
ing the throttle permits the attachment  
to stop oscillating. If the cutting attach-  
ment continues to oscillate when the  
engine returns to idle, carburetor idle  
speed should be adjusted (see "Adjust-  
ing Engine Idle" on the next page).  
obstructions!  
ON  
Throttle Lock  
Button  
Figure 21  
IMPORTANT!  
If the engine fails to start after several  
attempts with the choke in the closed  
position, the engine may be flooded  
with fuel. If flooding is suspected,  
move the choke lever to the open position  
and repeatedly pull the recoil starter to  
remove excess fuel and start the engine.  
If the engine still fails to start, refer to the  
troubleshooting section of this manual.  
Figure 18  
5. While holding the outer tube firmly  
with left hand. Use your other hand  
to slowly pull the recoil starter handle  
until resistance is felt, then pull quickly  
to start the engine.  
1. Slide the ignition switch to the “ON”  
position. See Figure 18.  
2. Set the throttle lever to the “fast idle”;  
a. Squeeze the throttle lever toward the  
handgrip on the shaft tube.  
CAUTION!  
b. Depress and hold the throttle lock  
Do not pull the recoil starter to the end  
of the rope travel. Pulling the recoil  
starter to the end of the rope travel can  
damage the starter.  
button.  
c. While depressing the throttle lock  
Starting A Flooded Engine  
button, release the throttle lever.  
See Figure 18.  
1. Disconnect the spark plug lead and use  
the spark plug wrench to remove the  
spark plug (turn counter clockwise to  
remove).  
Return Tube  
WARNING!  
2. Slide the ignition switch to the “O”  
(STOP) position.  
When the engine starts or is running–  
even at idle–the hedge trimmer cutter  
blade may move (oscillate). Keep  
your hands and your body away from  
the cutter assembly while starting the  
engine!  
Primer Bulb  
n If the spark plug is fouled or soaked  
with fuel, clean the plug as necessary.  
Figure 19  
3. Open the choke (Figure 22) and fully  
depress the throttle lever with your left  
hand, then pull the starter handle rap-  
idly with your right hand to clear excess  
fuel from the combustion chamber.  
3. Press the primer bulb until fuel can be seen  
flowing in the transparent return tube.  
IMPORTANT!  
5. When the engine starts, slowly move  
the choke lever to the "OPEN" position.  
See Figure 22. (If the engine stops after  
the initial start, close the choke and  
restart.)  
The primer system only pushes fuel  
through the carburetor. Repeatedly  
pressing the primer bulb will not flood the  
engine with fuel.  
Open  
4. Set the choke  
lever to the  
Closed  
CLOSED posi-  
tion if engine  
is cold.  
Figure 20  
Figure 22  
WARNING!  
Never start the engine from the  
operating position.  
9
Download from Www.Somanuals.com. All Manuals Search And Download.  
Stopping the Engine  
Idle the engine briefly before stopping  
(about 2 minutes), then slide the ignition  
switch to the “O” (Engine OFF) position.  
OFF  
Figure 23  
Adjusting Engine Idle  
Idle Speed Adjustment  
3. If a tachometer is available, the engine idle  
speed should be final adjusted to 3,000  
( 300) rpm (min-1).  
WARNING!  
NOTE:  
The cutting attachment must NEVER  
oscillate at engine idle! If the idle speed  
cannot be adjusted by the procedure  
described here, return the unit to your  
Shindaiwa dealer for inspection.  
Carburetor fuel mixture adjustments are  
preset at factory and cannot be serviced in  
the field.  
1. Place the unit on the ground and start  
the engine, then allow it to idle 2-3 min-  
utes until warm.  
Idle Adjusting  
Figure 24  
Screw  
2. If the cutting attachment oscillates  
when the engine is at idle, reduce  
the idle speed by turning the idle  
adjustment screw counter-clockwise.  
See Figure 24.  
The engine must return to idle speed  
whenever the throttle lever is released.  
Idle speed is adjustable, and must be set  
low enough to permit the engine clutch to  
disengage the cutting attachment.  
10  
Download from Www.Somanuals.com. All Manuals Search And Download.  
General Maintenance  
NOTE:  
IMPORTANT!  
Using non-standard replacement parts  
could invalidate your Shindaiwa warranty.  
MAINTENANCE, REPLACEMENT, OR  
REPAIR OF EMISSION CONTROL  
DEVICES AND SYSTEM MAY BE PER-  
FORMED BY ANY REPAIR ESTABLISH-  
MENT OR INDIVIDUAL. HOWEVER,  
WARRANTY REPAIRS MUST BE PER-  
FORMED BY A DEALER OR SERVICE  
CENTER AUTHORIZED BY SHINDAIWA  
CORPORATION AND USE OF PARTS  
THAT ARE NOT EQUIVALENT IN PER-  
FORMANCE AND DURABILITY TO AU-  
THORIZED PARTS MAY IMPAIR THE  
EFFECTIVENESS OF THE EMISSION  
CONTROL SYSTEM AND MAY HAVE A  
BEARING ON THE OUTCOME OF THE  
WARRANTY CLAIM.  
WARNING!  
Before performing any maintenance,  
repair, or cleaning work on the ma-  
chine, make sure the engine and  
cutting attachment are completely  
stopped. Disconnect the spark plug  
wire before performing service or main-  
tenance work.  
Spark Plug  
Keep the spark plug and wire connections  
tight and clean.  
Fasteners  
Make sure nuts, bolts, and screws (except  
carburetor adjusting screw) are tight.  
WARNING!  
Non-standard parts may not operate  
properly with your unit and may cause  
damage and lead to personal injury.  
Muffler  
This machine must never be operated with  
a faulty or missing spark arrestor or muf-  
fler. Make sure the muffler is well secured  
and in good condition. A worn or damaged  
muffler is a fire hazard and may also cause  
hearing loss.  
WARNING!  
Operating the engine without a muffler  
or with a muffler that is damaged or im-  
properly installed can increase engine  
noise sufficiently to cause hearing loss.  
Daily Maintenance  
Prior to each work day, perform the  
n Carefully remove any accumulations of  
dirt or debris from the muffler and fuel  
tank. Check cooling air intake area at  
base of crankcase. Remove all debris.  
Dirt build-up in these areas can lead to  
engine overheating, fire, or premature  
wear.  
n Clean any debris or dirt from the hedge  
trimmer cutter blades. Lubricate the  
blades before use and after refueling.  
Check the cutters for damage or incor-  
rect adjustment.  
n Check for loose or missing screws or  
components. Make sure the cutter at-  
tachment is securely fastened.  
following:  
n Remove all dirt and debris from the  
engine, check the cooling fins and air  
cleaner for clogging, and clean as nec-  
essary. See Figure 25.  
Keep cooling  
WARNING!  
fins clean  
n Check the entire machine for leaking  
fuel or grease.  
Always wear gloves when working  
around the cutter assembly.  
n Make sure nuts, bolts, and screws (ex-  
cept carburetor adjusting screws) are  
tight.  
Keep air  
passages  
clean  
Figure 25  
11  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Cutter Blade Adjustment  
Cutter performance of your machine  
depends in great measure on cutter blade  
clearance. Properly adjusted blades will  
oscillate freely yet help prevent binding of  
cut material between blades. Adjust blades  
as follows (Figure 26):  
When shoulder bolt adjustment is cor-  
rect, there should be a gap of 0.25–0.50  
mm between the cutter blades and the flat  
washers, and the flat washer beneath each  
bolt head should turn freely.  
WARNING!  
The cutter blades are very sharp!  
Always wear gloves when working  
around the cutter assembly.  
Locknut  
1. Loosen all blade locknuts at least one  
full turn.  
Guide Bar  
CAUTION!  
2. Tighten each blade shoulder bolt firmly,  
and then loosen the shoulder bolts 1/4  
to 1/2 turn.  
Operating the trimmer with worn or  
improperly adjusted cutters will reduce  
cutter performance and may also dam-  
age your machine.  
Cutter Blades  
Washer  
(should turn  
freely)  
3. Working from the gearcase end, lock  
each bolt in place by firmly tightening  
its locknut while preventing the shoul-  
der bolt from turning.  
Shoulder  
Bolt  
Figure 26  
10-Hour Maintenance  
(more frequently in dusty  
conditions)  
Unscrew  
Fasteners  
1. Remove the air cleaner cover by loosen-  
ing the thumb screws and lifting up. See  
Figure 27A.  
Pre-Filter  
2. Remove and inspect the pre-filter. If the  
pre-filter is torn or otherwise damaged,  
replace it with a new one. See Figure 27B.  
3. Clean the pre-filter with soap and water.  
Let dry before reinstalling.  
Filter  
Element  
4. Inspect the air cleaner element. If the  
element is damaged or distorted, re-  
place it with a new one.  
Figure 27A  
5. Tap filter gently on a hard surface to  
dislodge debris from element or use  
compressed air from the inside to blow  
debris out and away from the air filter  
element.  
Figure 27B  
IMPORTANT!  
CAUTION!  
Never operate the unit if the air cleaner  
assembly is damaged or missing!  
Direct the air stream at the inside face of  
the filter only!  
6. Install the filter element, pre-filter and  
cover in the reverse order of removal.  
10/15-Hour Maintenance  
CAUTION!  
CAUTION!  
Clean the spark  
plug and check  
the gap at the  
electrode.  
Before removing the spark plug, clean  
the area around the plug to prevent dirt  
and dust from getting into the engine’s  
internal parts.  
Over lubricating can cause the gear-  
box to operate sluggishly and can  
cause grease to leak out.  
Every 10 to 15 hours of operation:  
Gearbox Grease  
Fitting  
n Remove and clean the spark plug.  
See Figure 19. Adjust the spark plug  
electrode gap to 0.024 inch (0.6 mm).  
If the plug must be replaced, use only:  
NGK CMR5H or equivalent.  
0.024 inch  
(0.6 mm)  
251030  
Figure 28  
n Lubricate the cutter assembly gear-  
box by pumping one or two strokes of  
lithium-base grease into the grease fit-  
ting using a lever-type grease gun. See  
Figure 29.  
Figure 29  
12  
Download from Www.Somanuals.com. All Manuals Search And Download.  
50-Hour Maintenance  
Every 50 hours of operation  
(more frequently in dusty or  
dirty conditions):  
n Remove and clean the cylinder cover  
and clean dirt and debris from the cylin-  
der cooling fins.  
c. Slide the gearcase out of the tube. Using n Use a wire hook to extract the fuel  
a grease gun, pump lithium-base grease  
(about 10 grams) into the grease fitting  
on the gearcase until you see old grease  
being purged from the gearcase (Figure  
31). Purged grease will be visible in the  
outer tube cavity. Clean up excess  
grease, then reassemble the gearcase  
onto the outer tube. Make sure the  
index bolt fits into the hole on the outer  
tube. Securely tighten both bolts.  
filter from inside the fuel tank (Figure  
32). Inspect the fuel filter element. If it  
shows signs of contamination from de-  
bris, replace it with a genuine Shindaiwa  
replacement fuel filter element. Before  
reinstalling the filter, inspect the fuel  
line. If you discover damage or deterio-  
ration, the unit should be removed from  
service until it can be inspected by a  
Shindaiwa-trained service technician.  
n Lubricate the gearcase. To perform  
this operation, first remove the gearcase  
from the outer tube as follows:  
Gearcase  
Outer Tube  
Clamp Bolt  
Gearcase  
Figure 30  
Index Bolt  
Hooked  
Wire  
Gearcase  
Grease Fitting  
CAUTION!  
Figure 31  
Do not remove the D-shaped shim  
washer from the gearcase clamp! The  
shim washer prevents damage from  
overtightening the tube clamp screw.  
Servicing the fuel filter  
Figure 32  
Filter Element  
CAUTION!  
Make sure you do not pierce the fuel  
line with the end of the hooked wire.  
The line is delicate and can be dam-  
aged easily.  
a. Loosen the gearcase clamp bolt.  
b. Remove the index bolt from the  
gearcase.  
139/150-Hour Maintenance  
Maintenance after first 139-hours,  
feeler gauge is almost snug. Back off  
just enough to allow gauge to slip out  
with limited resistance.  
then every 150-hours thereafter.  
n Combustion chamber should be decar-  
bonized, and the valve clearance should  
be adjusted. It is highly recommended  
that this is done by a Shindaiwa-trained  
service technician.  
5. While holding adjustment screw in  
place with Allen driver, tighten locknut  
with wrench.  
6. Turn engine over several times, and  
return to TDC-compression. Recheck  
with proper feeler gauge to make sure  
clearance adjustment did not change as  
a result of tightening locknut. Readjust  
as necessary.  
n Replace the spark plug annually: Use  
only NGK CMR5H or equivalent resis-  
tor type spark plug of the correct heat  
range. Set spark plug electrode gap to  
0.024-0.028 inch (0.6 -0.7 mm).  
Valve Adjustment  
1. Remove cylinder cover, rocker arm cover,  
and set piston at TDC-compression.  
7. Replace rocker arm cover gasket to as-  
sure proper sealing and install cover.  
NOTE:  
2. Loosen adjuster locknut so that the 2.5  
mm Allen socket head adjustment screw  
can turn freely.  
The NGK CMR5H also meets the require-  
ments for electro magnetic compliance (EMC).  
CAUTION!  
n Performing a valve adjustment  
incorrectly may cause hard starting  
and/or can damage the unit. Refer  
to the C-4 Service Manual for com-  
plete valve adjustment procedure  
and torque specifications.  
n If you are unfamiliar with this engine  
or uncomfortable with this proce-  
dure, Consult with an authorized  
Shindaiwa servicing dealer.  
IMPORTANT!  
3. Insert feeler gauge .004” (0.10 mm) for  
both inkake and exhaust; between valve  
stem tip and rocker arm.  
If new gasket is not available and/or old  
gasket is not damaged, old gasket may  
be reused. Never use cracked or dam-  
aged gaskets!  
4. Turn adjustment screw (clockwise =  
tighter, counter-clockwise = looser) until  
13  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Spark Arrester Screen Maintenance  
If the engine becomes sluggish and low on  
power, check and clean the spark arrester  
screen.  
Engine Cover  
Screws  
Engine  
Cover  
WARNING!  
Never operate the unit with a damaged  
or missing muffler or spark arrester!  
Operating with missing or damaged  
spark arrester is a fire hazard and  
could also damage your hearing.  
Muffler  
Muffler  
Gasket  
1. With a 3 mm hex wrench remove the  
4 engine cover screws and the engine  
cover. See Figure 33.  
2. With a 4 mm hex wrench remove the  
3 muffler bolts and the muffler. See  
Figure 33.  
Muffler Bolts  
3. With a small flat bladed screwdriver  
remove the 2 screws holding the  
spark arrester screen and cover to  
the muffler. See Figure 33.  
Spark Arrester  
Screen  
Spark Arrester  
Cover  
Cover  
Screws  
4. Remove the screen and clean it with a  
stiff bristle brush.  
Figure 33  
5. Inspect the cylinder exhaust port for  
any carbon buildup.  
IMPORTANT!  
If you note excessive carbon buildup,  
consult with an authorized Shindaiwa  
servicing dealer.  
6. Reassemble the spark arrester, muffler  
and engine cover in the reverse order of  
disassembly.  
Long Term Storage  
Whenever the machine will not be used  
for 30 days or longer, use the following  
procedures to prepare it for storage:  
NOTE  
n Remove the spark plug and pour about  
1/4 ounce of oil into the cylinder  
through the spark plug hole. Slowly pull  
the recoil starter 2 or 3 times so oil will  
evenly coat the interior of the engine.  
Reinstall the spark plug.  
Damage resulting from stale or contaminated  
fuel is not covered by the Shindaiwa warranty  
policy.  
n Clean external parts thoroughly and  
apply a light coating of oil to all metal  
surfaces.  
n Drain all the fuel from the carburetor  
and the fuel tank.  
n Before storing the machine, repair or  
CAUTION!  
replace any worn or damaged parts.  
IMPORTANT!  
All stored fuels should be stabilized with a  
fuel stabilizer such as STA-BIL™.  
Gasoline stored in the carbure-  
tor for extended periods can cause  
hard starting, and could also lead to  
increased service and maintenance  
costs.  
n Remove the air cleaner element from  
the carburetor and clean it thoroughly  
with soap and water. Rinse and dry  
thoroughly, then add a few drops of oil  
and work it in. Reassemble.  
n Store the machine in a clean, dust-free  
area.  
14  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Troubleshooting Guide  
ENGINE DOES NOT START  
What To Check  
Possible Cause  
Remedy  
Faulty recoil starter.  
NO  
Does the engine crank?  
Fluid in the crankcase.  
Internal damage.  
Consult with an authorized servicing dealer.  
YES  
Loose spark plug.  
Tighten and re-test.  
NO  
NO  
Good compression?  
Excess wear on cylinder, piston, rings.  
Valves not seating.  
Consult with an authorized servicing dealer.  
YES  
Fuel incorrect, stale, or contaminated;  
mixture incorrect.  
Refill with fresh, clean unleaded gasoline with a pump  
octane of 87 or higher mixed with a 2-cycle air cooled  
mixing oil that meets or exceeds ISO-L-EGD and/or  
JASO FC classified oils at 50:1 gasoline/oil ratio.  
Does the tank contain fresh fuel  
of the proper grade?  
YES  
Check for clogged fuel filter and/or vent.  
Priming pump not functioning properly.  
Replace fuel filter or vent as required; restart.  
Consult with an authorized servicing dealer.  
Is fuel visible and moving in the  
return line when priming?  
NO  
NO  
YES  
The ignition switch is in “O” (OFF) position.  
Shorted ignition ground.  
Move switch to “I” (ON) position and re-start.  
Consult with an authorized servicing dealer.  
Is there spark at the spark plug  
wire terminal?  
YES  
Faulty ignition unit.  
If the plug is wet, excess fuel may  
be in the cylinder.  
Crank the engine with the plug removed, reinstall the  
plug, and restart.  
Check the spark plug.  
The plug is fouled or improperly gapped.  
Clean and regap the plug to 0.024 - 0.028 inch  
(0.6 - 0.7 mm). Restart.  
The plug is damaged internally or  
of the wrong size.  
Replace the plug with an NGK CMR5H or equivalent  
resistor type spark plug of the correct range. Set  
spark plug electrode gap to 0.024 - 0.028 inch  
(0.6-0.7 mm).  
LOW POWER OUTPUT  
What To Check  
Possible Cause  
Remedy  
Cut at a slower rate.  
Operator is overworking the unit.  
Carburetor mixture is too lean.  
Improper fuel ratio.  
Is the engine overheating?  
Consult with an authorized servicing dealer.  
Refill with fresh, clean unleaded gasoline with a pump  
octane of 87 or higher mixed with a 2-cycle air cooled  
mixing oil that meets or exceeds ISO-L-EGD and/or  
JASO FC classified oils at 50:1 gasoline/oil ratio.  
Fan, fan cover, cylinder fins dirty or damaged.  
Carbon deposits on the piston or in the muffler.  
Clogged air cleaner element.  
Loose or damaged spark plug.  
Air leakage or clogged fuel line.  
Water in the fuel.  
Clean, repair or replace as necessary.  
Consult with an authorized servicing dealer.  
Service the air cleaner element.  
Tighten or replace.  
Engine is rough at all speeds.  
May also have black smoke and/  
or unburned fuel at the exhaust.  
Repair or replace fuel filter and/or fuel line.  
Replace the fuel. See page 8.  
Piston seizure.  
Faulty carburetor and/or diaphragm.  
Valve clearance set incorrectly.  
Overheating condition.  
Consult with an authorized servicing dealer.  
See above.  
Engine is knocking.  
Improper fuel.  
Check fuel octane rating; check for presence of  
alcohol in the fuel (page 8). Refuel as necessary.  
Carbon deposits in the combustion chamber.  
Valve clearance set incorrectly.  
Consult with an authorized servicing dealer.  
15  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Troubleshooting Guide (continued)  
ADDITIONAL PROBLEMS  
Possible Cause  
Symptom  
Remedy  
Clogged air filter.  
Clean the air filter.  
Poor acceleration.  
Clogged fuel filter.  
Lean fuel/air mixture.  
Idle speed set too low.  
Switch turned off.  
Replace the fuel filter.  
Consult with an authorized servicing dealer.  
Adjust: 3,000 ( 300) RPM (min-1).  
Reset the switch and restart.  
Engine stops abruptly.  
Fuel tank empty.  
Refuel. See page 8.  
Clogged fuel filter.  
Water in the fuel.  
Replace fuel filter.  
Drain; replace with clean fuel. See page 8.  
Clean or replace spark plug, tighten the terminal.  
Replace the ignition unit.  
Shorted spark plug or loose terminal.  
Ignition failure.  
Piston seizure.  
Consult with an authorized servicing dealer.  
Test and replace as required.  
Ground (stop) wire is disconnected,  
or switch is defective.  
Engine difcult to shut off.  
Overheating due to incorrect spark plug.  
Idle engine until cool.  
Clean and regap the plug to 0.024 - 0.028 inch (0.6  
- 0.7 mm). Correct plug: NGK CMR5H or equivalent  
resistor type spark plug of the correct range.  
Overheated engine.  
Idle engine until cool.  
Valve cover is leaking.  
Consult with an authorized servicing dealer.  
Top of engine is getting  
dirty and oily.  
Engine idle too high.  
Set idle: 3,000 ( 300) RPM (min-1).  
Replace spring/shoes as required, check idle speed.  
Inspect and re-tighten holders securely.  
Set idle: 3,000 ( 300) RPM (min-1).  
Consult with an authorized servicing dealer.  
Inspect and replace attachment as required.  
Tighten gearcase securely.  
Cutting attachment rotates at  
engine idle.  
Broken clutch spring or worn clutch spring boss.  
Loose attachment holder.  
Engine idle set too high.  
Engine will not idle down.  
Excessive vibration.  
Engine has an air leak.  
Warped or damaged cutting attachment.  
Loose gearcase.  
Bent main shaft/worn or damaged bushings.  
Trimmer line not wound properly on spool.  
Shaft not installed in powerhead or gearcase.  
Broken shaft.  
Inspect and replace as necessary.  
Rewind trimmer line.  
Inspect and reinstall as required.  
Cutting attachment will  
not rotate.  
Consult with an authorized servicing dealer.  
Damaged gearcase.  
16  
Download from Www.Somanuals.com. All Manuals Search And Download.  
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 Corporation warrants to the initial purchaser and each  
MAINTENANCE AND REPAIR REQUIREMENTS  
subsequent owner, that this utility equipment engine (herein  
engine) is designed, built and equipped to conform at the time of  
initial sale, to all applicable regulations of the U.S. Environmental  
Protection Agency (EPA), and that the engine is free of defects in  
materials and workmanship that would cause this engine to fail  
to conform with EPA regulations during its warranty period. This  
emission warranty is applicable in all States, except the State of  
California.  
For parts listed under PARTS COVERED, the dealer authorized  
by Shindaiwa Corporation will, at no cost to you, make the neces-  
sary diagnosis, repair, or replacement of any defective emis-  
sion-related component to ensure that the engine complies with  
applicable U.S. EPA regulations.  
You are responsible for the proper use and maintenance of the engine.  
You should keep all receipts and maintenance records covering the  
performance of regular maintenance in the event questions arise. These  
receipts and maintenance records should be transferred to each subse-  
quent owner of the engine. Shindaiwa Corporation reserves the right to  
deny warranty coverage if the owner has not properly maintained the  
engine. Shindaiwa Corporation will not deny warranty repairs, however,  
solely because of the lack of repair, maintenance or failure to keep main-  
tenance records.  
MAINTENANCE,REPLACEMENTORREPAIROFEMISSIONCONTROL  
DEVICESANDSYSTEMSMAYBEPERFORMEDBYANYREPAIRESTAB-  
LISHMENT OR INDIVIDUAL; HOWEVER, WARRANTY REPAIRS MUST  
BE PERFORMED BY A DEALER OR SERVICE CENTER AUTHORIZED  
BY SHINDAIWA CORPORATION THE USE OF PARTS THAT ARE NOT  
EQUIVALENTINPERFORMANCEANDDURABILITYTOAUTHORIZED  
PARTS MAY IMPAIR THE EFFECTIVENESS OF THE EMISSION CON-  
TROL SYSTEM AND MAY HAVE A BEARING ON THE OUTCOME OF  
A WARRANTY CLAIM.  
MANUFACTURERS WARRANTY COVERAGE  
When sold within the U.S., this engine’s emission control system is  
warranted for a period of two (2) years from the date this product is first  
delivered to the original retail purchaser.  
If other than the parts authorized by Shindaiwa Corporation are used  
for maintenance replacements or for the repair of components affecting  
emission control, you should assure yourself that such parts are war-  
ranted by their manufacturer to be equivalent to the parts authorized by  
Shindaiwa Corporation in their performance and durability.  
OWNER’S WARRANTY RESPONSIBILITIES  
As the engine owner, you are responsible for the performance of the  
required maintenance listed in your owner’s manual. Shindaiwa Corpora-  
tion recommends that you retain all receipts covering maintenance on  
your engine, but Shindaiwa Corporation cannot deny a warranty claim  
solely for the lack of receipts or for your failure to ensure the perfor-  
mance of all scheduled maintenance.  
As the engine owner, you should however be aware that Shindaiwa  
Corporation may deny your warranty coverage if your engine or a part  
has failed due to abuse, neglect, improper maintenance or unapproved  
modifications.  
You are responsible for presenting your engine to the nearest dealer  
authorized by Shindaiwa Corporation when a problem exists.  
If your Shindaiwa Dealer is unable to answer questions regarding your  
warranty rights and responsibilities, you should then contact your  
Shindaiwa Distributor.  
For the name and telephone number of the Shindaiwa Distributor in your  
area, please call Shindaiwa Inc. at (503) 692-3070 between the hours of  
8:00 AM and 5:00 PM Pacific Standard Time.  
OBTAINING WARRANTY SERVICE  
All repairs qualifying under this limited warranty must be performed by a  
dealer authorized by Shindaiwa Corporation  
If any emission-related part is found defective during the warranty  
period, it is your responsibility to present the product to an authorized  
Shindaiwa dealer. Bring your sales receipts showing the date of pur-  
chase for this engine. The dealer authorized by Shindaiwa Corporation  
will perform the necessary repairs or adjustments within a reasonable  
amount of time and furnish you with a copy of the repair order. All parts  
and accessories replaced under this warranty become the property of  
Shindaiwa Corporation  
To locate an authorized Shindaiwa dealer near you, contact your  
Shindaiwa Distributor. For the name and telephone number of the  
Shindaiwa Distributor in your area, please call Shindaiwa Inc. at (503)  
692-3070 between the hours of 8:00 AM and 5:00 PM Pacific Standard  
Time.  
PARTS COVERED  
Listed below are the parts covered by the Federal Emission Design and  
Defect Warranty. Some parts listed below may require scheduled main-  
tenance and are warranted up to the first scheduled replacement of that  
part. The warranted parts include:  
THIS WARRANTY IS ADMINISTERED BY  
Shindaiwa Inc.  
11975 S.W. Herman Rd.  
Tualatin OR. 97062  
(503) 692-3070  
1. Carburetor Internal Components  
• Jet, Diaphragm Assembly-Metering  
2. Ignition System Components  
• Ignition Coil  
• Flywheel Rotor  
The emission control system for your particular Shindaiwa engine may  
also include certain related hoses and connectors.  
LIMITATIONS  
The Federal Emission Design and Defect Warranty shall not cover any of  
the following:  
(a) conditions resulting from tampering, misuse, improper adjust-  
ment (unless they were made by the dealer or service center  
authorized by Shindaiwa Corporation during a warranty repair),  
alteration, accident, failure to use the recommended fuel and oil,  
or not performing required maintenance services,  
(b) the replacement parts used for required maintenance services,  
(c) consequential parts used for required maintenance services,  
(d) diagnosis and inspection fees that do not result in eligible war-  
ranty service being performed, and  
(e) any non-authorized replacement part, or malfunction of autho-  
rized parts due to use of non-authorized parts.  
17  
Download from Www.Somanuals.com. All Manuals Search And Download.  
NOTES  
18  
Download from Www.Somanuals.com. All Manuals Search And Download.  
NOTES  
19  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Shindaiwa Inc.  
11975 S.W. Herman Rd.  
Tualatin, Oregon 97062 USA  
Telephone: 503 692-3070  
Fax:  
503 692-6696  
Shindaiwa Corporation  
Head Office:  
6-2-11, Ozuka-Nishi  
Asaminami-Ku, Hiroshima  
731-3167, Japan  
Telephone: 81-82-849-2220  
Fax:  
81-82-849-2481  
©2007 Shindaiwa, Inc.  
Part Number 62640-94313  
Revision 3/07  
Shindaiwa is a registered trademark  
of Shindaiwa, Inc.  
Specifications subject to change without notice.  
Download from Www.Somanuals.com. All Manuals Search And Download.  

Sharp Toaster R 140D User Manual
Sharp Video Game Sound System HT SB500 User Manual
Snapper Lawn Aerator 4534 User Manual
Sony Speaker SS K70ED User Manual
Sony Stereo System STR DA3ES User Manual
Sub Zero Refrigerator BI 42SD O User Manual
Sunbeam Bread Maker Deluxe 2 Pound Bread Dough Maker User Manual
Superior Cell Phone W302 User Manual
Sylvania TV VCR Combo SRC2113 User Manual
Tamron Camera Lens 272E User Manual