Shindaiwa AH2510 Operator`s 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
Introduction
Attention Statements
The Shindaiwa AH2510 Articulated Hedge
Trimmer is designed and built to deliver
superior performance and reliability without compromise to quality, comfort, safety
or durability.
Shindaiwa’s high-performance engines
represent the leading edge of all position
4-cycle 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.
IMPORTANT!
The information contained in these instructions describes machines available
at the time of publication. While every
attempt has been made to provide the
latest information about your Shindaiwa
product, there may be some differences
between your AH2510 and what is described here. Shindaiwa Inc. reserves the
right to make changes to products without
prior notice and without obligation to
make alterations to machines previously
manufactured.
A statement preceded by the triangular
attention symbol and the word “WARNING” indicates a potentially hazardous
situation which, if not avoided, COULD
result in death or serious injury.
Shindaiwa Inc. reserves the right to make
changes to products without prior notice,
and without obligation to make alterations
to units previously manufactured.
Contents
Page
Introduction................................................. 2
Attention Statements.................................. 2
Safety Instructions...................................... 2
Safety Equipment and Labels.....................3
Operating Precautions................................ 3
Operating the Hedge Trimmer.................. 4
Product Description.................................... 5
Specifications............................................... 5
Assembly...................................................... 6
Adjusting the Cutter Assembly.................. 7
Engine Fuel................................................. 8
Starting the Engine..................................... 9
Stopping the Engine................................. 10
Adjusting Engine Idle............................... 10
Maintenance.............................................. 11
Long Term Storage................................... 14
Troubleshooting Guide............................ 15
Emission System Warranty...................... 17
DANGER!
A statement preceded by the triangular
attention symbol and the word “DANGER” indicates an imminently hazardous situation which, if not avoided,
WILL result in death or serious injury!
Safety Instructions
DANGER!
THE ARTICULATED HEDGE
TRIMMER IS NOT INSULATED
AGAINST ELECTRICAL SHOCK!
Approaching or contacting electrical
lines with the trimmer could cause
death or serious injury. Keep the trimmer at least 33 feet (10 meters) away
from electrical lines or branches that
contact electrical lines.
WARNING!
CAUTION!
A statement preceded by the word
“CAUTION” contains information that
should be acted upon to avoid damage
to the machine.
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.
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.
Always wear a hard hat to reduce
the risk of head injuries during
operation of this machine. In addition, always wear eye and hearing
protection. Shindaiwa recommends
wearing a face shield as additional
face and eye protection.
This product conducts electricity.
Keep the product and/or operator a minimum distance of 15 feet
(4.5 meters) away from electrical
sources and power lines.
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.
The blades are SHARP! Handle
with care.
WARNING!
The engine exhaust from this product
contains chemicals known to the State
of California to cause cancer, birth
defects or other reproductive harm.
An articulated hedge trimmer has the
potential to do serious damage 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 instruction to operate
this trimmer!
Stay Alert
You must be physically and mentally fit to
operate this unit safely.
WARNING!
Never operate power
equipment of any kind if you are tired
or if you are under the influence of
alcohol, drugs, medication or any other
substance that could affect your ability
or judgement.
DO NO
IF YOU
UNDE
ALCO
MEDIC
IMPORTANT!
The procedures described in this manual
are intended to help you get the most from
your machine 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 power tool, or if
you do not understand something in this
manual, your Shindaiwa dealer will be
glad to assist you. You may also contact
Shindaiwa, Inc. at the address printed on
the back of this Manual.
Safety Equipment and Labels
Shaft
Safety Label
Cutter Blade
Scabbard
Stop
Switch
Throttle
Interlock
Hand
Guard
High Voltage Label
IMPORTANT!
Caution, Danger, Warning, and
Operation Information Labels:
Make sure all information labels are
undamaged and readable. Immediately replace damaged or missing
information labels. New labels are
available from your local authorized
Shindaiwa dealer.
Figure 1
Operating Precautions
WARNING!
n Never transport the articulated
hedge trimmer nor set it down with
the engine running. An engine that’s
running could be accidently accelerated 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 When carrying the articulated hedge
trimmer by hand, the cutter attachment should be pointing backward
with the cutter blade in the retracted
or transporting position (see page 7
for articulating adjustment procedures).
n Always make sure the cutter attachment is properly installed and firmly
tightened before operation.
n Never use a cracked or warped
cutter or cutter bar: replace it with
a serviceable one and make sure it
fits properly.
n Before starting the engine, make
sure the cutter is not contacting
anything.
n Stop the machine immediately if it
suddenly begins to vibrate or shake.
Inspect for broken, missing or
improperly installed parts or attachments.
n Do not operate the articulated
hedge trimmer with the muffler
removed.
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 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 Make sure there are no missing or
loose fasteners, and that the stop
switch and throttle controls are
working properly.
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 articulated hedge trimmer (see page 12
for cutter adjustment procedures).
Never attempt cutter adjustment
with the engine running!
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!
Operating the Articulated Hedge Trimmer
CAUTION!
n Always maintain the articulated
hedge trimmer according to this
owner’s manual and follow the
recommended scheduled maintenance.
Always wear a hard hat to reduce
the risk of head injuries during
operation of this machine.
n Never modify or disable any of
the hedge trimmer’s safety devices.
Secure long hair
so it is above
shoulder level.
n Always use genuine Shindaiwa
parts and accessories when
repairing or maintaining this machine.
Always wear eye and hearing
protection. Shindaiwa recommends
wearing a face shield as additional
face and eye protection.
Always operate with
both hands firmly
gripping the machine.
n Do not make unauthorized modifications 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.
n Always clear your work area of
trash or hidden debris to help
ensure good footing.
Keep a proper footing and do not
overreach—maintain your balance
at all times during operation.
n Keep the cutters sharp and properly 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 trimmer 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 recommended. Never operate machine
bare-footed.
Figure 2
Figure 3
Prior To Assembly
Using Figure 4 as a guide, familiarize yourself with the Shindaiwa AH2510 articulated
hedge trimmer and its various components. Understanding your machine helps
ensure top performance, longer service
life, and safer operation.
Before assembling, make sure you have all
the components required for a complete
unit:
Product Description
Spark
Plug
Cutter Assembly
Adjustment Lever
Stop Switch
n Engine assembly
n Outer tube/cutter assembly
n Kit with this manual and tool kit for
routine maintenance.
Air Filter
Assembly
Fuel Tank
Throttle
Trigger
Hedge Trimmer Cutter
Assembly
Outer
Tube
Cutter Blade
Scabbard
Fuel Tank Guard
n Cutter blade scabbard
Powerhead Assembly
Hand
Guard
Handle
Grip
Carefully inspect all components for
damage.
Latch Lock
WARNING!
Do not make unauthorized modifications or alterations to your articulated
hedge trimmer or its components.
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.
Hedge Trimmer
Cutter Assembly
AH231_07
Recoil
Starter
Latch
Release
Gearcase
Cutter Bar and
Cutter Blades
Figure 4
Specifications
Model Name.............................................................................AH2510
Carburetor........................................... Walbro WYL diaphragm type
Engine Model......................................................................... SF2510E
Ignition System....................... Fully electronic, program controlled
Engine Type.............................. 4-cycle, vertical cylinder, air cooled
Spark Plug...................................................................... NGK CMR5H
Dry Weight..................................................................14.0 lbs./6.3 kg
Air Filter........ Non-reversible, heavy-duty, two -stage filter element
Bore x Stroke............................................... 34 x 27 mm/1.34 X 1.06”
Starting Method............................................................. Recoil starter
Displacement........................................................... 24.5 cc/1.5 cu. in.
Stopping Method...............................................................Slide switch
(min-1)
Cooling System....................................................................Forced air
Maximum Power Output..............................................1.1 hp/0.8 kW
Transmission Type..............................Automatic, centrifugal clutch
with bevel gear
Engine Speed at Maximum Power Output...........7,500 rpm
Engine Speed at Idling...........................................3,000 rpm (min-1)
Maximum Engine Speed......................................10,500 rpm (min-1)
Blade Length.............................................................. 22.3 in/567 mm
Fuel/Oil Ratio........................................... 50:1 with Premium 2-cycle
air cooled mixing oil
Gear Lubricant................................................. Lithium based grease
Cutter Drive...........................................................................Spur gear
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.
Assembly: AH2510
Spark Plug
Tube Clamp
Clamp Screw
Outer Tube
Mainshaft
Hex
Wrench
Grip
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
CAUTION!
Do not force the shaft tube into the
powerhead! Excessive force can damage the shaft tube and mainshaft.
Connect the Outer Tube
to the Powerhead.
1. Place the powerhead on a clean, flat
surface, spark plug facing up.
2. Use the 4 mm hex wrench to loosen the
tube clamp screw.
5. Slide the outer tube into the powerhead
until the throttle grip just contacts the
tube clamp.
6. Tighten the clamp screw firmly.
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.
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
Cable Swivel
Assembly: Adjust Throttle Lever Free Play
The throttle lever free play should be approximately 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 illustrations 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
3/16-1/4 inch (4-6
mm) Throttle Free
play
1. Loosen the air cleaner cover knob
and remove the air cleaner cover.
See Figure 11.
2. Loosen the lock nut on the cable adjuster. See Figure 12.
Figure 10
Figure 12
5. Reinstall the air cleaner cover.
Adjusting the Hedge Trimmer Cutter Assembly
WARNING!
n The cutter blades are very sharp.
Do not grasp the blades with your
hands. Do not brush the blades
against your body.
2. With the index finger of your left hand,
press the latch release. With your left
thumb, press the latch lock.
See Figure 14.
Latch Release
n Never run the engine nor operate
the articulated hedge trimmer when
the cutter assembly is in the storage/transport position.
4. Release the latch lock and the latch
release. Make sure the latch lock and
the latch release return securely to a
locking position.
5. Remove the scabbard from the cutter
blade. The engine now may be started.
Adjusting the Hedge Trimmer Cutter Assembly for Desired Cutting
Angles
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.
1. With your right hand, grasp the handle,
located immediately behind the hand
guard. With your left hand, grip the adjustment lever on the cutter assembly.
See Figure 13.
IMPORTANT!
The latch lock provides an interlock to
help prevent inadvertent depression of
the latch release.
Various blade
positions possible
270°
The cutter assembly
can be adjusted to 10
different positions ranging from 120° to 270°
from the outer tube as
shown in Figure 14.
Refer to the steps on the
previous page for adjustment procedures. Always make sure the lock
latch is securely locked
after each adjustment.
Latch Lock
Figure 14
3. While holding the latch lock down, pivot
the cutter assembly using the adjustment lever until it is straight with the
outer tube (pivot 180°).
See Figure 15.
Adjustment Lever
Figure 16
Adjustment Lever
WARNING!
Figure 15
Do not touch the cutter blades when
the engine is running. The blades can
oscillate even if the engine is idling.
Figure 13
Adjusting the Hedge Trimmer Cutter Assembly (continued)
Adjusting the Cutter Assembly for
Storage or Transportation
WARNING!
Never run the engine when adjusting
the cutter assembly to the storage
position.
1. With the engine off, install the scabbard
onto the blade.
Gearcase rotated to the
storage/transportation position
2. Using the procedures described on the
previous page, rotate the cutter assembly 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.
3. Make sure the scabbard is in place on
the cutters before storing or transporting.
Figure 17
Mixing Fuel
CAUTION!
n Some types of gasoline contain alcohol as an oxygenate. Oxygenated
gasoline may cause increased operating temperatures. Under certain
conditions, alcohol-based gasoline
may also reduce the lubricating
qualities of some 2-cycle mixing oils.
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.
CAUTION!
Examples of 50:1 mixing quantities
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.
n 1 gallon of gasoline to 2.6 oz. mixing oil.
n Use only fresh, clean unleaded gasoline
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 gasoline to 2.6 ozs mixing oil). Shindaiwa
One meets or exceeds these requirements.
Filling the Fuel Tank
WARNING!
Minimize the Risk of Fire!
n ALWAYS stop the engine and allow it to cool before refueling. Avoid
overfilling and wipe off any fuel that
may have spilled.
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 material near the engine muffler!
n Never operate the engine without
the muffler and spark arrester in
good working condition.
1. Place the unit on a flat, level surface.
2. Clear any dirt or other debris from
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.
n 5 liters of gasoline to 100 ml. mixing oil.
IMPORTANT!
Mix only enough fuel for your immediate
needs! If fuel must be stored longer than
30 days and
oil with fuel stabilizer
is not used, it should first be treated with
a fuel stabilizer such as STA-BIL™.
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.
Starting the Engine
IMPORTANT!
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.
When the Engine Starts...
Make sure
the cutting
attachment
is clear of
obstructions!
ON
Throttle Lock
Button
Figure 21
Figure 18
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.
b. Depress and hold the throttle lock
button.
c. While depressing the throttle lock
button, release the throttle lever.
See 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.
CAUTION!
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.
Return Tube
WARNING!
Primer Bulb
Figure 19
3. Press the primer bulb until fuel can be seen
flowing in the transparent return tube.
IMPORTANT!
The primer system only pushes fuel
through the carburetor. Repeatedly
pressing the primer bulb will not flood the
engine with fuel.
4. Set the choke
lever to the
CLOSED position if engine
is cold.
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!
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.)
n After the engine starts, allow the engine
to warm up at idle 2 or 3 minutes before
operating the unit.
n Advancing the throttle makes the cutting attachment oscillate faster; releasing the throttle permits the attachment
to stop oscillating. If the cutting attachment continues to oscillate when the
engine returns to idle, carburetor idle
speed should be adjusted (see "Adjusting Engine Idle" on the next page).
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.
Starting A Flooded Engine
1. Disconnect the spark plug lead and use
the spark plug wrench to remove the
spark plug (turn counter clockwise to
remove).
2. Slide the ignition switch to the “O”
(STOP) position.
n If the spark plug is fouled or soaked
with fuel, clean the plug as necessary.
3. Open the choke (Figure 22) and fully
depress the throttle lever with your left
hand, then pull the starter handle rapidly with your right hand to clear excess
fuel from the combustion chamber.
Open
Closed
Figure 20
Figure 20
Figure 22
22
Figure
WARNING!
Never start the engine from the
operating position.
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
WARNING!
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.
Figure 24
Idle Adjusting
Screw
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
1. Place the unit on the ground and start
the engine, then allow it to idle 2-3 minutes until warm.
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.
3. If a tachometer is available, the engine idle
speed should be final adjusted to 3,000
(±300) rpm (min-1).
NOTE:
Carburetor fuel mixture adjustments are
preset at factory and cannot be serviced in
the field.
General Maintenance
IMPORTANT!
MAINTENANCE, REPLACEMENT, OR
REPAIR OF EMISSION CONTROL
DEVICES AND SYSTEM MAY BE PERFORMED BY ANY REPAIR ESTABLISHMENT OR INDIVIDUAL. HOWEVER,
WARRANTY REPAIRS MUST BE PERFORMED BY A DEALER OR SERVICE
CENTER AUTHORIZED BY SHINDAIWA
CORPORATION AND USE OF PARTS
THAT ARE NOT EQUIVALENT IN PERFORMANCE AND DURABILITY TO AUTHORIZED PARTS MAY IMPAIR THE
EFFECTIVENESS OF THE EMISSION
CONTROL SYSTEM AND MAY HAVE A
BEARING ON THE OUTCOME OF THE
WARRANTY CLAIM.
NOTE:
WARNING!
Before performing any maintenance,
repair, or cleaning work on the machine, make sure the engine and
cutting attachment are completely
stopped. Disconnect the spark plug
wire before performing service or maintenance work.
Using non-standard replacement parts
could invalidate your Shindaiwa warranty.
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
WARNING!
Operating the engine without a muffler
or with a muffler that is damaged or improperly installed can increase engine
noise sufficiently to cause hearing loss.
This machine must never be operated with
a faulty or missing spark arrestor or muffler. 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.
Daily Maintenance
Prior to each work day, perform the
following:
n Remove all dirt and debris from the
engine, check the cooling fins and air
cleaner for clogging, and clean as necessary. See Figure 25.
Keep cooling
fins clean
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.
WARNING!
Always wear gloves when working
around the cutter assembly.
Keep air
passages
clean
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 incorrect adjustment.
n Check for loose or missing screws or
components. Make sure the cutter attachment is securely fastened.
n Check the entire machine for leaking
fuel or grease.
n Make sure nuts, bolts, and screws (except carburetor adjusting screws) are
tight.
Figure 25
11
Cutter Blade Adjustment
The cutter blades are very sharp!
Always wear gloves when working
around the cutter assembly.
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):
CAUTION!
1. Loosen all blade locknuts at least one
full turn.
WARNING!
Operating the trimmer with worn or
improperly adjusted cutters will reduce
cutter performance and may also damage your machine.
When shoulder bolt adjustment is correct, 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.
Locknut
Guide Bar
2. Tighten each blade shoulder bolt firmly,
and then loosen the shoulder bolts 1/4
to 1/2 turn.
3. Working from the gearcase end, lock
each bolt in place by firmly tightening
its locknut while preventing the shoulder bolt from turning.
Cutter Blades
Figure 26
Shoulder
Bolt
Washer
(should turn
freely)
10-Hour Maintenance
(more frequently in dusty
conditions)
1. Remove the air cleaner cover by loosening the thumb screws and lifting up. See
Figure 27A.
Unscrew
Fasteners
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, replace it with a new one.
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 27A
Figure 27B
IMPORTANT!
Direct the air stream at the inside face of
the filter only!
CAUTION!
Never operate the unit if the air cleaner
assembly is damaged or missing!
6. Install the filter element, pre-filter and
cover in the reverse order of removal.
10/15-Hour Maintenance
CAUTION!
CAUTION!
Before removing the spark plug, clean
the area around the plug to prevent dirt
and dust from getting into the engine’s
internal parts.
Clean the spark
plug and check
the gap at the
electrode.
Every 10 to 15 hours of operation:
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.
n Lubricate the cutter assembly gearbox by pumping one or two strokes of
12
Over lubricating can cause the gearbox to operate sluggishly and can
cause grease to leak out.
Gearbox Grease
Fitting
0.024 inch
(0.6 mm)
Figure 28
251030
lithium-base grease into the grease fitting using a lever-type grease gun. See
Figure 29.
Figure 29
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 cylinder cooling fins.
n Lubricate the gearcase. To perform
this operation, first remove the gearcase
from the outer tube as follows:
Outer Tube
Figure 30
Gearcase
Clamp Bolt
Gearcase
c. Slide the gearcase out of the tube. Using
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.
Index Bolt
CAUTION!
Do not remove the D-shaped shim
washer from the gearcase clamp! The
shim washer prevents damage from
overtightening the tube clamp screw.
Figure 31
Gearcase
Grease Fitting
Servicing the fuel filter
n Use a wire hook to extract the fuel
filter from inside the fuel tank (Figure
32). Inspect the fuel filter element. If it
shows signs of contamination from debris, replace it with a genuine Shindaiwa
replacement fuel filter element. Before
reinstalling the filter, inspect the fuel
line. If you discover damage or deterioration, the unit should be removed from
service until it can be inspected by a
Shindaiwa-trained service technician.
Hooked
Wire
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 damaged easily.
a. Loosen the gearcase clamp bolt.
b. Remove the index bolt from the
gearcase.
139/150-Hour Maintenance
feeler gauge is almost snug. Back off
just enough to allow gauge to slip out
with limited resistance.
Maintenance after first 139-hours,
then every 150-hours thereafter.
n Combustion chamber should be decarbonized, 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.
n Replace the spark plug annually: Use
only NGK CMR5H or equivalent resistor 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
NOTE:
The NGK CMR5H also meets the requirements for electro magnetic compliance (EMC).
2. Loosen adjuster locknut so that the 2.5
mm Allen socket head adjustment screw
can turn freely.
1. Remove cylinder cover, rocker arm cover,
and set piston at TDC-compression.
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.
7. Replace rocker arm cover gasket to assure proper sealing and install cover.
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 complete valve adjustment procedure
and torque specifications.
n If you are unfamiliar with this engine
or uncomfortable with this procedure, Consult with an authorized
Shindaiwa servicing dealer.
3. Insert feeler gauge .004” (0.10 mm) for
both inkake and exhaust; between valve
stem tip and rocker arm.
4. Turn adjustment screw (clockwise =
tighter, counter-clockwise = looser) until
IMPORTANT!
If new gasket is not available and/or old
gasket is not damaged, old gasket may
be reused. Never use cracked or damaged gaskets!
13
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.
4. Remove the screen and clean it with a
stiff bristle brush.
Spark Arrester
Screen
Figure 33
Cover
Screws
Spark Arrester
Cover
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:
n Clean external parts thoroughly and
apply a light coating of oil to all metal
surfaces.
CAUTION!
Gasoline stored in the carburetor for extended periods can cause
hard starting, and could also lead to
increased service and maintenance
costs.
14
NOTE
Damage resulting from stale or contaminated
fuel is not covered by the Shindaiwa warranty
policy.
n Drain all the fuel from the carburetor
and the fuel tank.
IMPORTANT!
All stored fuels should be stabilized with a
fuel stabilizer such as STA-BIL™.
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.
n Before storing the machine, repair or
replace any worn or damaged parts.
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.
Troubleshooting Guide
What To Check
Does the engine crank?
NO
NO
Loose spark plug.
Excess wear on cylinder, piston, rings.
Valves not seating.
Tighten and re-test.
Consult with an authorized servicing dealer.
NO
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.
NO
Check for clogged fuel filter and/or vent.
Replace fuel filter or vent as required; restart.
Priming pump not functioning properly.
Consult with an authorized servicing dealer.
The ignition switch is in “O” (OFF) position.
Move switch to “I” (ON) position and re-start.
YES
Is fuel visible and moving in the
return line when priming?
Consult with an authorized servicing dealer.
Internal damage.
YES
Does the tank contain fresh fuel
of the proper grade?
Remedy
Faulty recoil starter.
Fluid in the crankcase.
YES
Good compression?
ENGINE DOES NOT START
Possible Cause
YES
Is there spark at the spark plug
wire terminal?
YES
Check the spark plug.
NO
Shorted ignition ground.
Faulty ignition unit.
Consult with an authorized servicing dealer.
If the plug is wet, excess fuel may
be in the cylinder.
Crank the engine with the plug removed, reinstall the
plug, and restart.
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
Is the engine overheating?
Engine is rough at all speeds.
May also have black smoke and/
or unburned fuel at the exhaust.
Possible Cause
Remedy
Operator is overworking the unit.
Cut at a slower rate.
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 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.
Clean, repair or replace as necessary.
Carbon deposits on the piston or in the muffler.
Consult with an authorized servicing dealer.
Clogged air cleaner element.
Service the air cleaner element.
Loose or damaged spark plug.
Tighten or replace.
Air leakage or clogged fuel line.
Repair or replace fuel filter and/or fuel line.
Water in the fuel.
Replace the fuel. See page 8.
Piston seizure.
Faulty carburetor and/or diaphragm.
Consult with an authorized servicing dealer.
Valve clearance set incorrectly.
Engine is knocking.
Overheating condition.
See above.
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
Troubleshooting Guide (continued)
ADDITIONAL PROBLEMS
Symptom
Poor acceleration.
Engine stops abruptly.
Engine difficult to shut off.
Top of engine is getting dirty and oily.
Cutting attachment rotates at
engine idle.
Engine will not idle down.
Excessive vibration.
Cutting attachment will not rotate.
Possible Cause
Clogged air filter.
Clean the air filter.
Clogged fuel filter.
Replace the fuel filter.
Lean fuel/air mixture.
Consult with an authorized servicing dealer.
Idle speed set too low.
Adjust: 3,000 (±300) RPM (min-1).
Switch turned off.
Reset the switch and restart.
Fuel tank empty.
Refuel. See page 8.
Clogged fuel filter.
Replace fuel filter.
Water in the fuel.
Drain; replace with clean fuel. See page 8.
Shorted spark plug or loose terminal.
Clean or replace spark plug, tighten the terminal.
Ignition failure.
Replace the ignition unit.
Piston seizure.
Consult with an authorized servicing dealer.
Ground (stop) wire is disconnected,
or switch is defective.
Test and replace as required.
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.
Engine idle too high.
Set idle: 3,000 (±300) RPM (min-1).
Broken clutch spring or worn clutch spring boss.
Replace spring/shoes as required, check idle speed.
Loose attachment holder.
Inspect and re-tighten holders securely.
Engine idle set too high.
Set idle: 3,000 (±300) RPM (min-1).
Engine has an air leak.
Consult with an authorized servicing dealer.
Warped or damaged cutting attachment.
Inspect and replace attachment as required.
Loose gearcase.
Tighten gearcase securely.
Bent main shaft/worn or damaged bushings.
Inspect and replace as necessary.
Trimmer line not wound properly on spool.
Rewind trimmer line.
Shaft not installed in powerhead or gearcase.
Inspect and reinstall as required.
Broken shaft.
Damaged gearcase.
16
Remedy
Consult with an authorized servicing dealer.
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
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 necessar y diagnosis, repair, or replacement of any defective emission-related component to ensure that the engine complies with
applicable U.S. EPA regulations.
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.
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 Corporation 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 performance 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.
PARTS COVERED
Listed below are the parts covered by the Federal Emission Design and
Defect Warranty. Some parts listed below may require scheduled maintenance and are warranted up to the first scheduled replacement of that
part. The warranted parts include:
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.
MAINTENANCE AND REPAIR REQUIREMENTS
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 subsequent 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 maintenance records.
MAINTENANCE, REPLACEMENT OR REPAIR OF EMISSION CONTROL
DEVICES AND SYSTEMS MAY BE PERFORMED BY ANY REPAIR ESTABLISHMENT 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
EQUIVALENT IN PERFORMANCE AND DURABILITY TO AUTHORIZED
PARTS MAY IMPAIR THE EFFECTIVENESS OF THE EMISSION CONTROL SYSTEM AND MAY HAVE A BEARING ON THE OUTCOME OF
A WARRANTY CLAIM.
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 warranted by their manufacturer to be equivalent to the parts authorized by
Shindaiwa Corporation in their performance and durability.
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 purchase 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.
THIS WARRANTY IS ADMINISTERED BY
Shindaiwa Inc.
11975 S.W. Herman Rd.
Tualatin OR. 97062
(503) 692-3070
LIMITATIONS
The Federal Emission Design and Defect Warranty shall not cover any of
the following:
(a)conditions resulting from tampering, misuse, improper adjustment (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 warranty service being performed, and
(e)any non-authorized replacement part, or malfunction of authorized parts due to use of non-authorized parts.
17
NOTES
18
NOTES
19
Shindaiwa Inc.
11975 S.W. Herman Rd.
Tualatin, Oregon 97062 USA
Telephone: 503 692-3070
Fax:
503 692-6696
www.shindaiwa.com
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.