848A5893A0 (712)
G
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OWNER’S MANUAL
PRUNING SAW
PSZ2610
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PSZ2610
SAFETY FIRST
Instructions contained in warnings within this manual marked
Contents
with a
symbol concern critical points which must be taken
1. Parts location .................................................. 3
2. Specifications ................................................. 4
3. Warning labels on the machine ...................... 4
4. Symbols on the machine ................................ 4
5. For safe operation........................................... 5
6. Set up ............................................................. 8
7. Fuel and chain oil ........................................... 9
8. Operation ...................................................... 10
9. Maintenance ................................................. 13
10. Storage ......................................................... 16
11. Disposal ........................................................ 16
12. Troubleshooting guide .................................. 16
into consideration to prevent possible serious bodily injury, and
for this reason you are requested to read all such instructions
carefully and follow them without fail.
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WARNINGS IN THE MANUAL
WARNING
This mark indicates instructions, which must be followed in or-
der to prevent accidents, which could lead to serious bodily in-
jury or death.
IMPORTANT
This mark indicates instructions, which must be followed, or it
leads to mechanical failure, breakdown, or damage.
NOTE
This mark indicates hints or directions useful in the use of the
product.
This pruning saw is designed especially for tree service by a trained operator. For safe operation, you
must read and understand this owner's manual completely before operating the pruning saw.
Note: Illustrations and specifications in this manual may vary according to requirements of individual
countries and are subject to change without notice by the manufacturer.
1. Parts location
1. Primer
2. Air cleaner cover
3. Choke lever
4. Fuel tank
5. Starter knob
6. Spark arrester
7. Transmission
8. Chain cover
9. Saw chain
10. Guide bar
11. Grip
12. Shaft tube
13. Suspension point
14. Throttle trigger
15. Stop switch
16. Throttle cable
17. Throttle set button
GB-3
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PSZ2610
2. Specification
PSZ2610
Overall size (L x W x H)................ 2085 x 250 x 310mm
Dry weight ............................................................. 5.5kg
Engine Type................... Air-cooled 2-stroke gasoline
Model..................................... Zenoah GZ25N
Displacement..................................... 25.4cm3
Max. output.. 1.2Hp (0.9kW) at 7500min-1(rpm)
Idle speed .................... 3000 200min-1(rpm)
Fuel.................... Mixture (Gasoline 50 : Oil 1)
(when using ZENOAH genuine oil)
Carburetor ............... Walbro Diaphragm type
Spark plug ................................. NGK CMR7H
Durability period ..................................300 hrs
Fuel tank capacity................................................. 0.65
Transmission ......... Centrifugal clutch, Rigid driveshaft
Reduction ratio ....................................................... 0.94
Cutting head
Guide bar Type.............. OREGON DOUBLE GUARD
Size .................................... 10(25) in.(cm)
Saw chain Type........................... OREGON 90SG39X
Pitch x Gauge . 3/8x0.043 (9.53 x 1.07) in.(cm)
Sprocket .................................................................... 7T
Oil pump ................................................... Plunger type
Standard Accessories
Shoulder Strap ..................................................... 1 pc.
Tool Kit.................................................................. 1 pc.
Guide bar protector ............................................. 1 pc.
Specifications are subject to change without notice.
3. Warning labels on the machine
If warning label peels off or becomes soiled and
impossible to read, you should contact the
dealer from which you purchased the product
to order new labels and affix them in the required
location(s).
(1) Read owner's manual before operating this
machine.
Never modify your machine.
(2) Wear head, eye and ear protection.
(3) Warning/Attention
(4) The unit has not been designed to provide
protection from electric shock in the event of
contact with overhead electric lines.
We won’t warrant the machine, if you use the
remodeled pruning saw or if you don’t ob-
serve the proper usage written in the manual.
4. Symbols on the machine
For safe operation and maintenance, symbols are carved in relief on the machine. According to these indications,
please be careful not to make a mistake.
The port to refuel the “MIX GASOLINE”
Position: FUEL TANK CAP
The direction to close the choke
Position: AIR CLEANER COVER
The direction to open the choke
Position: AIR CLEANER COVER
MIN
MAX
If you turn the rod by screwdriver follow the arrow to the “MAX” position, the chain oil flow more, and
if you turn to the “MIN” position, less.
Position: Bottom of the GEAR CASE
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PSZ2610
5. For safe operation
1. Read this manual carefully until you
completely understand and follow
all safety and operating instructions.
2. Keep this manual handy so that you
may refer to it later whenever any
questions arise. Also note, if you have
any questions which cannot be an-
swered herein, contact the dealer from
whom you purchased the product.
3. Always be sure to include this
manual when selling, lending, or oth-
erwise transferring the ownership of
this product.
WORKING PLAN
1. You should never use the product
when under the influence of alcohol,
when suffering from exhaustion or lack
of sleep, when suffering from drowsi-
ness as a result of having taken cold
medicine or at any other time when a
possibility exists that your judgment
might be impaired or that you might
not be able to operate the product
properly and in a safe manner.
2. When planning your work schedule,
allow plenty of time to rest. Limit the
amount of time over which the prod-
uct is to be used continuously to
somewhere around 30 - 40 minutes
per session, and take 10 - 20 minutes
of rest between work sessions. Also
try to keep the total amount of work
performed in a single day under 2
hours or less.
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4. Never allow children or anyone un-
able to fully understand the direc-
tions given in the manual to use the
machine.
WORKING CONDITION
1. When using the product, you should
wear proper clothing and protective
equipment.
WARNING
(1) Helmet
(2) Ear protectors
(3) Protection goggles or face protec-
tor
(4) Thick work gloves
(5) Non-slip-sole work boots
1. If you don’t observe the working time,
or working manner (See “USINGTHE
PRODUCT”), Repetitive Stress Injury
(RSI) could occur.
If you feel discomfort, redness and
swelling of your fingers or any other
part of your body, see a doctor before
getting worse.
2. And you should carry with you.
(1) Attached tools
(2) Properly reserved fuel
(3) Spare blade
(4) Things to notify your working area
(rope, warning signs)
2. To avoid noise complaints, in general,
operate product between 8 a.m. and
5 p.m. on weekdays and 9 a.m. to 5
p.m. on weekends.
(5) Whistle (for collaboration or emer-
gency)
(6) Hatchet or saw (for removal of
obstacles)
NOTE
Check and follow the local regulations as
to sound level and hours of operations
for the product.
3. Do not wear loose clothing, jewelry,
short trousers, sandals, or go bare-
foot. Do not wear anything which
might be caught by a moving part of
the unit. Secure hair so it is above
shoulder length.
BEFORE STARTING
THE ENGINE
1. Operate the chain saw only in well ven-
tilated areas. Never start or run the
engine inside a closed room or build-
ing. Exhaust fumes contain dangerous
carbon monoxide.
2. The area within a perimeter of 15 m of
the person using the product should be
considered a hazardous area into which
no one should enter. If necessary, yellow
warning rope, warning signs should be
placed around the perimeter of the area.
When work is to be performed simulta-
neously by two or more persons, care
should also be taken to constantly look
around or otherwise check for the pres-
ence and locations of other people work-
ing so as to maintain a distance between
each person sufficient to ensure safety.
3. Check the condition of working area to
avoid any accident by hitting hidden
obstacles such as stumps, stones, cans,
WORKING CIRCUMSTANCE
1. Never start the engine inside a closed
room or building. Exhaust gases con-
tain dangerous carbon monoxide.
2. Never use the product,
a. when the ground is slippery or
when you can’t maintain a steady
posture.
b. At night, at times of heavy fog, or
at any other times when your field
of vision might be limited and it
would be difficult to gain a clear
view of the working area.
c. During rain storms, during light-
ning storms, at times of strong or
gale-force winds, or at any other
times when weather conditions
might make it unsafe to use the
product.
or broken glass.
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PSZ2610
5. For safe operation
whole unit. Do not use it until the
trouble has been properly corrected.
5. Keep all parts of your body away from
rotating cutting attachment and hot
surfaces.
6. Never touch the muffler, spark plug,
or other metallic parts of the engine
while the engine is in operation or im-
mediately after shutting down the en-
gine. Doing so could result in serious
burns or electrical shock.
IMPORTANT
Remove any obstacle before beginning
work.
4. Inspect the entire unit for loose fasteners
and fuel leakage. Make sure that the cut-
ting attachment is properly installed and
securely fastened.
5. Always use the shoulder strap. Adjust
the strap for comfort before starting
the engine. The strap should be ad-
justed so the left hand can comfort-
ably hold the handlebar grip approxi-
mately waist high.
WARNING
Approaching or contacting electric power
lines with pruning saw may cause serious
injury death from electrocution. Electric-
ity can jump from one point to another by
means arcing or may be conducted
through damp branches. Maintain a clear-
ance of at least 15m between pruning saw
and any electrical line carrying live current.
STARTING THE ENGINE
1. Keep bystanders and animals at least
15 m away from the operating point. If
you are approached, immediately stop
the engine.
2. The product is equipped with a cen-
trifugal clutch mechanism, so the cut-
ting attachment begins to rotate as
soon as the engine is started by put-
ting the throttle into the start position.
When starting the engine, place the
product onto the ground in a flat clear
area and hold it firmly in place so as
to ensure that neither the cutting part
nor the throttle come into contact with
any obstacle when the engine starts.
• IF SOMEONE COMES
1. Guard against hazardous situations at
all times. Warn adults to keep pets and
children away from the area. Be care-
ful if you are approached. Injury may
result from flying debris.
2. If someone calls out or otherwise in-
terrupts you while working, always be
sure to turn off the engine before turn-
ing around.
WARNING
MAINTENANCE
Never place the throttle into the high-
speed position when starting the engine.
1. In order to maintain your product in
proper working order, perform the
maintenance and checking operations
described in the manual at regular in-
tervals.
3. After starting the engine, check to
make sure that the cutting attachment
stops rotating when the throttle is
moved fully back to its original posi-
tion. If it continues to rotate even after
the throttle has been moved fully back,
turn off the engine and take the unit to
your authorized ZENOAH servicing
dealer for repair.
2. Always be sure to turn off the engine
before performing any maintenance or
checking procedures.
WARNING
The metallic parts reach high temperatures
immediatelyafterstoppingtheengine.
USING THE PRODUCT
IMPORTANT
3. When replacing the cutting attachment
or any other part, or when replacing
the oil or any lubricant, always be sure
touseonlyZENOAHproductsorprod-
ucts which have been certified by
ZENOAH for use with the ZENOAH
product.
4. In the event that any part must be re-
placed or any maintenance or repair
work not described in this manual
must be performed, please contact a
representative from the store nearest
ZENOAH authorized servicing dealer
for assistance.
5. Do not use any accessory or attachment
other than those bearing the ZENOAH
mark and recommended for the unit.
6. Under no circumstances should you
ever take apart the product or alter it
in any way. Doing so might result in
the product becoming damaged dur-
ing operation or the product becom-
ing unable to operate properly.
Cut only materials recommended by the
manufacturer. And use only for tasks ex-
plained in the manual.
1. Grip the handles firmly with both hands
using your whole hand. Place your feet
slightly apart (slightly further apart than
the width of your shoulders) so that your
weight is distributed evenly across both
legs, and always be sure to maintain a
steady, even posture while working.
2. Maintain the speed of the engine at
the level required to perform cutting
work, and never raise the speed of the
engine above the level necessary.
3. Never operate the pruner at an angle
greater than 60° in order to reduce the
risk of being struck by falling objects
during operation.
4. If the unit starts to shake or vibrate,
turn off the engine and check the
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PSZ2610
5. For safe operation
HANDLING FUEL
(1) With a basic understanding of kick-
back you can reduce or eliminate the
element of surprise. Sudden surprise
contributes to accidents.
1. The engine of the ZENOAH product is
designed to run on a mixed fuel, which
contains highly flammable gasoline.
Never store cans of fuel or refill the tank
of the unit in any place where there is a
boiler, stove, wood fire, electrical sparks,
welding sparks, or any other source of
heat or fire which might ignite the fuel.
2. Never smoke while operating the unit
or refilling its fuel tank.
3. When refilling the tank, always turn off
the engine and allow it to cool down.
Take a careful look around to make sure
that there are no sparks or open flames
anywhere nearby before refueling.
4. Wipe spilled fuel completely using a
dry rag if any fuel spillage occurs
during refueling.
(2) Keep a good grip on the saw with both
hands, the right hand on the rear
handle, and the left hand on the front
handle, when the engine is running.
Use a firm grip with thumbs and fin-
gers encircling the chain saw handles.
A firm grip will help you reduce kick-
back and maintain control of the saw.
(3) Make certain that the area in which
you are cutting is free from obstruc-
tions. Do not let the nose of the guide
bar contact a log, branch, or any
other obstruction which could be hit
while you are operating the saw.
(4) Cut at high engine speeds.
(5) Follow the manufacturer’s sharpen-
ing and maintenance instructions for
the saw chain.
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5. After refueling, screw the fuel cap
back tightly onto the fuel tank and then
carry the unit to a spot 3 m or more
away from where it was refueled be-
fore turning on the engine.
(6) Only use replacement bars and
chains specified by the manufacturer
or the equivalent.
TRANSPORTATION
1. When you finish cutting in one loca-
tion and wish to continue work in an-
other spot, turn off the engine, lift up
the unit and carry it paying attention
to the blade.
WARNING
•
Make sure the chain and sprocket are
correctly adjusted before operating the
pruner (see page 32~35 for adjustment
procedures). Never attempt chain ad-
justment with the engine running!
2. Never forget to place the protective
cover over the blades.
3. When hand-carrying the product,
cover over the cutting part if neces-
sary, lift up the product and carry it
paying attention to the blade.
4. Never transport the product over
rough roads over long distances by
vehicle without removing all fuel from
the fuel tank. If doing so, fuel might
leak from the tank during transport.
• Always make sure the cutting attach-
ment is properly installed and firmly
tightened before operation.
• Never use a cracked or warped guide
bar: replace it with a serviceable one
and make sure it fits properly.
• If a saw blade should bind fast in a
cut, shut off the engine immediately.
Push the branch or tree to ease the
bind and free the blade.
• Do not operate the pole pruner with
the muffler removed.
KICKBACK SAFETY PRECAUTIONS
FOR CHAIN SAW USERS
•
When cutting a limb that is under ten-
sion, be alert for springback so that you
will not be struck by the moving limb.
WARNING
•
Kickback may occur when the nose or
tip of the guide bar touches an object,
or when the wood closes in and
pinches the saw chain in the cut. Tip
contact in some cases may cause a
lightning fast reverse reaction,kicking
the guide bar up and back towards the
operator. Pinching the saw chain along
the top of the guide bar may push the
guide bar rapidly back towards the
operator. Either of these reactions may
cause you to Iose control of the saw,
which could result in serious personal
injury.
• Always stop the engine immediately
and check for damage if you strike a
foreign object or if the machine be-
comes tangled. Do not operate with
broken or damaged equipment.
IMPORTANT
• Do not make unauthorized modifica-
tions or substitutions to the guide bar
or chain.
• Never allow the engine to run at high
RPM without a load. Doing so could
damage the engine.
• Keep the pruner as clean as possible.
Keep it free of loose vegetation, mud,
etc
•
Do not rely exclusively on the safety
devices built into your saw. As a chain
saw user you should take several
steps to keep cutting jobs free from
accident or injury.
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PSZ2610
6. Set up
MOUNTING ENGINE
A standard package contains the items as shown below.
1. Push the drive shaft housing toward the clutch housing and rotate
it by hand to check that the drive shaft is engaged with the gears.
2. Insert the drive shaft housing into the clutch housing until it bottoms,
and align the positioning holes on the clutch housing and the shaft tube
and install the screw. When difficult to engage, twist the engine slightly.
3. Fasten the clamp securely with two screws.
(1) Guide bar
(3) Transmission
(5) Chain tension adjust screw (6) Nut
(7) Chain tensioner nut
(2) Saw chain
(4) Sprocket
(8) Chain cover
IMPORTANT
Install the guide bar and the saw chain on the transmission as follows.
WARNING
Tighten the screws gradually by turns.
CONNECTING THROTTLE WIRE
1. Remove the air cleaner cover.
2. Connect the end of the throttle wire to the joint on the top of
the carburetor.
The saw chain has very sharp edges. Use protective
gloves for safety.
1. Loosen a nut and remove the chain cover.
2. Mount the guide bar then fit the saw chain around the bar and sprocket.
WARNING
Pay attention to the correct direction of the saw chain.
3. Fit the chain tensioner nut into the lower hole of the guide bar, then
install the chain cover, and fasten the mounting nut to finger tightness.
CONNECTING SWITCH WIRES
•
Connect the switch wires between the engine and the main
unit. Pair the wires of the same color.
ATTACHING THE PRUNING MECHANISM
(1)
(2)
(1) Hole
(2) Moving direction
(3) Chain tensioner nut
(3)
(4)
4. Adjust the chain tension by turning the tensioner screw until
the tie straps just touch the bottom side of the bar rail.
(5)
(1) Main pipe
(3) Screw hole
(5) Bolt
(2) Transmission
(4) Fastening bolt
(1) Chain tension adjusting
screw
(a) Loosen
(b) Tighten
1. Remove the cap on the end of the main pipe.
2. Remove the screw screwed into the end of the transmission.
3. Insert the end of the gear case into the main pipe.
4. Line up the hole on the end of the transmission into which the screw is to be
inserted with the hole on the main pipe, and screw the screw firmly in.
5. Using a wrench, screw in the bolt provided to fix the mecha-
nism into place.
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PSZ2610
6. Set up
5. Tighten the mounting nut securely with the bar tip held up
(TORQUE: 8.9 - 11.7 N.m./90 - 120 kg-cm). Then check the
chain for smooth rotation and correct tension while moving it
by hand. If necessary, readjust.
7. Fuel and chain oil
■ FUEL
WARNING
• Gasoline is very flammable. Avoid smoking or
bringing any flame or sparks near fuel. Make sure
to stop the engine and allow it cool before refuel-
ing the unit. Select outdoor bare ground for fueling
and move at least 3 m (10 ft) away from the fueling
point before starting the engine.
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(1) Tighten
WARNING
Itisveryimportanttomaintaintheproperchaintension.Rapid
wear of the guide bar or the chain coming off easily can be
caused by improper tension. Especially when using a new
chain, take good care of it since it should expand when first
used.
• The Zenoah engines are lubricated by oil specially
formulated for air-cooled 2-cycle gasoline engine use.
If Zenoah oil is not available, use an anti-oxidant added
quality oil expressly labeled for air-cooled 2-cycle en-
gine use (JASO FC GRADE OIL or ISO EGC GRADE).
• Do not use BIA or TCW (2-stroke water-cooling type)
mixed oil.
HARNESS
WARNING
ALWAYS WEAR THE PROVIDED HARNESS WHEN
USING THE MACHINE!
Always make sure the machine is hooked securely to the
harness.
If you don’t, you will be unable to control the machine safely.
This can result in injury to yourself or others.
Never use a harness with a defective quick release or any
other damage.
■ RECOMMENDED MIXING RATIO
GASOLINE 50 : OIL 1
(when using ZENOAH genuine oil)
• Exhaust emission are controlled by the funda-
mental engine parameters and components (eq.,
carburation, ignition timing and port timing) with-
out addition of any major hardware or the introduc-
tion of an inert material during combustion.
• These engines are certified to operate on unleaded
gasoline.
HOW TO WEAR
1. Wear the provided harness without
twisted bands, with the hanger on your
right side.
(1)
(1) Hanger
• Make sure to use gasoline with a minimum octane
number of 89RON (USA/Canada: 87AL).
• If you use a gasoline of a lower octane value than pre-
scribed, there is a danger that the engine tempera-
ture may rise and an engine problem such as piston
seizing may consequently occur.
• Unleaded gasoline is recommended to reduce the con-
tamination of the air for the sake of your health and the
environment.
• Poor quality gasolines or oils may damage sealing rings,
fuel lines or fuel tank of the engine.
(Single strap)
BALANCE UNIT
1. Put on strap and attach unit to strap.
2. Depending on the working posture, slide clamp up or down
until unit balances and the strap fits your body.
QUICK RELEASE
The harness is equipped with a “QUICK RELEASE” devise.
To release the machine from the harness in emergency situa-
tions, please follow the procedure as explained below.
■ HOW TO MIX FUEL
WARNING
WARNING
Make sure to check proper working of the QUICK RELEASE
device BEFORE operating the machine.
Make sure to hold the unit securely when using the QUICK
RELEASE.
• Pay attention to agitation.
1. Measure out the quantities of gasoline and oil to be
mixed.
2. Put some of the gasoline into a clean, approved fuel
container.
3. Pour in all of the oil and agitate well.
4. Pour in the rest of gasoline and agitate again for at least
one minute. As some oils may be difficult to agitate de-
pending on oil ingredients, sufficient agitation is neces-
While holding the unit by your right
hand securely, press both sides of the
buckle.
(1)
(1) Buckle
(Single strap)
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PSZ2610
7. Fuel and chain oil
8. Operation
sary for the engine to last long. Be careful that, if the
agitation is insufficient, there is an increased danger of
early piston seizing due to abnormally lean mixture.
5. Put a clear indication on the outside of the container
to avoid mixing up with gasoline or other containers.
6. Indicate the contents on outside of container for easy
identification.
WARNING
The cutting head will start rotating upon the engine starts.
1. Feed fuel into the fuel tank and tighten the cap securely.
■ FUELING THE UNIT
1. Untwist and remove the fuel cap. Rest the cap on a
dustless place.
2. Put fuel into the fuel tank to 80% of the full capacity.
3. Fasten the fuel cap securely and wipe up any fuel
spillage around the unit.
Feed the chain oil into the oil tank and tighten the cap securely, too.
WARNING
1. Select flat and bare ground for fueling.
2. Move at least 10 feet (3 meters) away from the fu-
eling point before starting the engine.
3. Stop the engine before refueling the unit. At that
time, be sure to sufficiently agitate the mixed gaso-
line in the container.
(1) Fuel
(2) Chain oil
■ FORYOUR ENGINE LIFE, AVOID:
2. Rest the unit on a flat, firm place. Keep the cutting head off
the ground and clear of surrounding objects, as it will start
rotating upon starting of the engine.
1. FUEL WITH NO OIL (RAW GASOLINE) – It will cause
severe damage to the internal engine parts very
quickly.
2. GASOHOL – It can cause deterioration of rubber and/
or plastic parts and disruption of engine lubrication.
3. OIL FOR 4-CYCLE ENGINE USE – It can cause spark
plug fouling, exhaust port blocking, or piston ring
sticking.
3. Push the primer pump several times until overflown fuel flows out in the clear tube.
4. Mixed fuels which have been left unused for a period of
one month or more may clog the carburetor and result
in the engine failing to operate properly.
5. In the case of storing the product for a long period of
time, clean the fuel tank after rendering it empty. Next,
activate the engine and empty the carburetor of the
composite fuel.
6. In the case of scrapping the used mixed oil container,
scrap it only at an authorized repository site.
4. Move the choke lever to the closed position.
(1)
NOTE
(2)
(3)
As for details of quality assurance, read the description in the
section Limited Warranty carefully. Moreover, normal wear and
change in product with no functional influence are not covered
by the warranty. Also, be careful that, if the usage in the instruc-
tion manual is not observed as to the mixed gasoline, etc. de-
scribed therein, it may not be covered by the warranty.
(1) Choke lever (2) Close (3) Open
■ CHAIN OIL
Use motor oil SAE #10W-30 all year round or SAE
#30 - #40 in summer and SAE #20 in winter.
5. Set the stop switch to the “ ” position. Set the throttle trig-
ger to the start position (1 → 2 → 3).
Place the unit on a flat, firm place.
Keep the cutting head clear of everything around it.
(1)
1
NOTE
(1) Stop switch
Do not use wasted or regenerated oil that can cause
damage to the oil pump.
2
3
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8. Operation
6. While holding the unit firmly, pull out the starter rope quickly
until engine fires.
STOPPING ENGINE
1. Release the throttle lever and run the engine for half a
minute.
2. Shift the ignition switch to the STOP position.
IMPORTANT
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•
•
Except for an emergency, avoid stopping the engine while
pulling the throttle lever.
When it doesn’t stop at the stop switch, move the choke lever
to the closed position.
WARNING
The product is equipped with a centrifugal clutch mecha-
nism, so the cutting attachment begins to rotate as soon as
the engine is started by putting the throttle into the start
position. When starting the engine, place the product onto
the ground in a flat clear area and hold it firmly in place so
as to ensure that neither the cutting part nor the throttle
come into contact with any obstacle when the engine starts.
ADJUSTING THROTTLE CABLE
•
The normal play is 1 or 2 mm when measured at the carburetor
side end. Readjust with the cable adjuster as required.
1 - 2 mm
(1)
(1) Cable adjuster
IMPORTANT
•
Avoid pulling the rope to its end or returning it by releasing
the knob. Such actions can cause starter failures.
ADJUSTING IDLING SPEED
7. Move the choke lever downward to open the choke. And
restart engine.
(1)
(2)
(3)
(1)
(1) Idle adjusting screw
1. When the engine tends to stop frequently at idling mode,
turn the adjusting screw clockwise.
(1) Choke lever (2) Close (3) Open
8. Allow the engine to warm up for a several minutes before
starting operation.
2. When the cutting head keeps rotating after releasing the trig-
ger, turn the adjusting screw counter-clockwise.
NOTE
NOTE
1. When restarting the engine immediately after stopping it,
leave the choke open.
•
Warm up the engine before adjusting the idling speed.
2. Overchoking can make the engine hard to start due to excess fuel.
When the engine failed to start after several attempts, open the choke
and repeat pulling the rope, or remove the spark plug and dry it.
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PSZ2610
8. Operation
Checking oil supply
IMPORTANT
After starting the engine, run the chain at medium speed and
see if chain oil has scattered off, as shown in the figure.
The oil flow adjusting screw must be pressed in slightly in
order to turn. Failure to do so could damage the pump and
screw.
3. With a screwdriver, push in on the oil flow rate adjusting screw
and turn in the desired direction (there are three incremen-
tal settings):
(a) Clockwise-decrease lubrication
(b) Counter clockwise-increase lubrication
(c) Middle
(1) Chain oil
WARNING
NOTE
•
•
Always wear work gloves made of leather or some other
sturdy material when using the polesaw.
Falling branches may fall onto the face or into the eyes,
resulting in injuries, scratches, and cuts, and for this rea-
son you should always be sure to wear a helmet and
face protector when using your polesaw.
The oil reservoir has a capacity sufficient to provide about 40
minutes of cutting time (when set to deliver the minimum flow
rate, or about as long as you’ll get from a tank of fuel). Be sure
to refill the oil tank every time when refuelling the saw.
Adjusting Oil Flow Rate
WARNING
Never fill the oil reservoir nor adjust the oiler with the en-
gine running.
IMPORTANT
An increase in bar oil flow rate will speed oil consumption, re-
quiring more frequent checks on the oil reservoir.To ensure suf-
ficient lubrication, it may be necessary to check the oil level more
frequently than at fuel tank refills.
The guide bar and chain are lubricated automatically by a pump
that operates whenever the chain rotates. The pump is set at
the factory to deliver a minimum flow rate, but it can be ad-
justed in the field. A temporary increase in oil flow is often desir-
able when cutting things like hardwood or wood with a lot of
pitch.
Adjust the pump as follows:
1. Stop the engine and make sure the stop switch is in the OFF
position.
2. Place the unit on its side with the oil reservoir up.
(1) Oil tank (2) Chain cover
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PSZ2610
9. Maintenance
Every Every Every
25 50 100
hours hours hours
after after after
Before
use
System/components
Procedure
Note
fuel leaks, fuel spillage
fuel tank, air filter, fuel filter
wipe out
inspect/clean
see ■ adjusting
idling speed (p. 11)
clean and readjust
plug gap
■
■
G
B
■
replace, if necessary
replace carburetor
if necessary
GAP: 0.6 - 0.7 mm
replace, if necessary
idle adjusting screw
spark plug
■
■
cylinder fins, intake air cooling vent clean
■
muffler, spark arrester,
cylinder exhaust port
throttle lever, ignition switch
transmission
screws/nuts/bolts
oiling port
clean,
■
remove piled up carbon
check operation
grease
tighten/replace
clean
■
■
■
■
■
■
■
not adjusting screws
guide bar
clean
sprocket
saw chain
inspect/replace
inspect/sharp
■
■
WARNING
SPARK PLUG
•
Starting failure and misfiring are often caused by a fouled spark
plug. Clean the spark plug and check that the plug gap is in
the correct range. For a replacement plug, use the correct
type specified by ZENOAH.
•
Make sure that the engine has stopped and is cool before per-
forming any service to the machine. Contact with moving cutting
head or hot muffler may result in a personal injury.
AIR FILTER
•
The air filter, if clogged, will reduce the engine performance.
Check and clean the filter element in warm, soapy water as
required. Dry completely before installing. If the element is
broken or shrunk, replace with a new one.
0.6 - 0.7 mm
•
REPLACEMENT PLUG IS A NGK CMR7H.
IMPORTANT
•
•
Note that using any spark plug other than those designated may
result in the engine failing to operate properly or in the engine
becoming overheated and damaged.
To install the spark plug, first turn the plug until it is finger tight, then
tighten it a quarter turn more with a socket wrench.
(1)
(1) Air filter
FUEL FILTER
9.8 - 11.8 N.m.
TIGHTENING TORQUE:
(1 - 1.2 kg.m.)
•
When the engine runs short of fuel supply, check the fuel
cap and the fuel filter for blockage.
MUFFLER
WARNING
•
Inspectperiodically,themufflerforloosefasteners,anydamageorcor-
rosion. If any sign of exhaust leakage is found, stop using the machine
and have it repaired immediately.
(1)
•
Note that failing to do so may result in the engine catch-
ing on fire.
(1) Fuel filter
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PSZ2610
9. Maintenance
SPARK ARRESTER
1. Remove the muffler, insert a screwdriver into the vent, and wipe
away any carbon buildup. Wipe away any carbon buildup on the
muffler exhaust vent and cylinder exhaust port at the same time.
•
The muffler is equipped with a spark arrester to prevent red hot carbon
from flying out of the exhaust outlet. Periodically inspect and clean as
necessary with a wire brush. In the State of California it is required by
law (Section 4442 of the California Public Resources Code) to equip a
spark arrester when a gas powered tool is used in any forest covered,
brush covered, or grass covered unimproved land.
2. Tighten all screws, bolts, and fittings.
3. Check to see if any oil or grease has worked its way in between the clutch
lining and drum, and if it has, wipe it away using oil-free, lead-free gasoline.
OILING PORT
Dismount the guide bar and check the oiling port for clogging. (MA1)
(1)
(1)
(1) Spark arrester
INTAKE AIR COOLING VENT
WARNING
(1) Oiling port
GUIDE BAR
Remove sawdust in the bar groove and the oiling port.
•
Never touch the cylinder, muffler, or spark plugs with your bare hands
immediately after stopping the engine. The engine can become very
hot when in operation, and doing so could result in severe burns.
When checking the machine to make sure that it is okay before
using it, check the area around the muffler and remove any
wood chips or leaves which have attached themselves to the
brushcutter. Failing to do so could cause the muffler to be-
come overheated and that in turn could cause the engine to
catch on fire. Always make sure that the muffler is clean and
free of wood chips, leaves, and other waste before use.
Check the intake air cooling vent and the area around the cyl-
inder cooling fins after every 25 hours of use for blockage, and
remove any waste which has attached itself to the brushcutter.
Note that it is necessary to remove the engine cover shown in
(MA5) in order to be able to view the upper part of the cylinder.
•
(1) Groove (2) Oiling port
•
(Type: Sprocket nose)
Grease the nose sprocket from the feeding port on the tip of the bar.
IMPORTANT
•
If waste gets stuck and causes blockage around the intake air cooling
vent or between the cylinder fins, it may cause the engine to overheat,
and that in turn may cause mechanical failure on the part of the brushcutter.
(1)
(1) Grease port (2) Sprocket
The bar rail should always be a square. Check for wear of the bar
rail. Apply a ruler to the bar and the outside of a cutter. If a gap is
observed between them, the rail is normal. Otherwise, the bar rail
is worn. Such a bar needs to be corrected or replaced.
(2)
(1) Cylinder
(2) Intake air cooling vent (back)
PROCEDURES TO BE PERFORMED AFTER EVERY 100 HOURS OF USE
(1) Ruler (2) Gap
(3) No gap (4) Chain tilts
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PSZ2610
9. Maintenance
SPROCKET
After every cutter has been set, check the depth gauge and file
it to the proper level as illustrated. (MA7)
Check for extensive wear, and replace it when the teeth are
worn over 0.3 mm.
0.3 mm
G
B
(1) Sprocket
SAW CHAIN
0.25" (0.65 mm)
WARNING
It is very important for smooth and safe operation to keep
the cutters always sharp.
(1) Appropriate gauge checker
(2) Make the shoulder round
(3) Depth gauge standard
Your cutters need to be sharpened when:
•
•
•
•
•
Sawdust becomes powder-like.
You need extra force to saw in.
The cut way does not go straight.
Vibration increases.
WARNING
Fuel consumption increases.
Be sure to round off the front edge to reduce the chance of kick-
back or tie-strap breakage.
Cuttersettingstandards:
WARNING
Make sure every cutter has the same length and edge angles
as illustrated.
Be sure to wear safety gloves.
Before filing:
•
•
•
Make sure the saw chain is held securely.
Make sure the engine is stopped.
Use a round file of proper size for your chain.
Chain type : 90SG
File size
: 5/32 in (4.0 mm)
Place your file on the cutter and push straightforward. Keep the
file position as illustrated.
(4) Cutter length
(5) Filing angle
(6) Side plate angle
(7) Top plate cutting angle
TRANSMISSION
The reduction gears are lubricated by multipurpose, lithium-
based grease in the transmission.
Supply new grease every 25 hours of use or more often de-
pending on the job condition.
When adding lubricant, use a grease gun to insert lubricant
into the three grease nipples located on the transmission.
(1) Grease fitting
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PSZ2610
10. Storage
Aged fuel is one of major causes of engine starting failure. Before
storing the unit, empty the fuel tank and run the engine until it uses
all the fuel left in the fuel line and the carburetor. Store the unit
indoor taking necessary measures for rust prevention.
11. Disposal
When disposing your machine, fuel or oil for the machine,
be sure to allow your local regulations.
12. Troubleshooting guide
Case 1. Starting failure
CHECK
fuel tank
fuel filter
PROBABLE CAUSES
→ incorrect fuel
→ fuel filter is clogged
ACTION
→ drain it and use correct fuel
→ clean
carburetor adjustment screw → out of normal range
→ adjust to normal range
→ clean/dry
→ correct (GAP: 0.6 - 0.7 mm)
→ retighten
sparking (no spark)
spark plug
→ spark plug is fouled/wet
→ plug gap is incorrect
→ disconnected
Case 2. Engine starts but does not keep running/hard re-starting
CHECK
PROBABLE CAUSES
ACTION
fuel tank
→ incorrect fuel or staled fuel → drain it and use correct fuel
carburetor adjustment screw
muffler, cylinder (exhaust port) → carbon is built-up
air cleaner
cylinder fin, fan cover
→ out of normal range
→ adjust to normal range
→ wipe away
→ wash
→ clogged with dust
→ clogged with dust
→ clean
When your unit seems to need further service, please consult with our ZENOAH service shop in your area.
Limited warranty
WARRANTY OBLIGATION OF THE COMPANY.
S
hould any failure occur on the product under normal operating con-
ditions within the applicable warranty period, the failed part will be
replaced or repaired free of charge by a ZENOAH authorized dealer.
THE COMPANY IS LIABLE FOR DAMAGES TO OTHER EN-
GINE COMPONENTS CAUSED BY THE FAILURE OF A WAR-
RANTED PART STILL UNDER WARRANTY.
WARRANTY PERIOD: 1 year (6 months if used professionally, and
30 days if used for rental purpose) from the date of initial purchase.
THE WARRANTY DOES NOT APPLY TO THOSE UNITS WHICH
HAVE BEEN DAMAGED BY NEGLIGENCE OF INSTRUCTION LISTED
IN THE OWNER/OPERATOR MANUAL FOR PROPER USE AND MAIN-
TENANCE OF THE UNITS ACCIDENT MISHANDLING, ALTER-
ATION, ABUSE, IMPROPER LUBRICATION, USE OF ANY PARTS
OR ACCESSORIES OTHER THAN THOSE SPECIFIED BY THE
COMPANY, OR OTHER CAUSES BEYOND THE COMPANY’S CON-
TROL.
THE PURCHASER SHALL BEAR COSTS OF TRANSPORTING
THE UNIT TO AND FROM THE ZENOAH DEALER.
THE PURCHASER SHALL NOT BE CHARGED FOR DIAGNOS-
TIC LABOR WHICH LEADS TO THE DETERMINATION THAT A
WARRANTED PART IS DEFECTIVE, IF THE DIAGNOSTIC WORK
IS PERFORMED AT THE ZENOAH DEALER.
THIS WARRANTY DOES NOT COVER THOSE PARTS RE-
PLACED BY NORMAL WEAR OR HARMLESS CHANGES IN
THEIR APPEARANCE.
THE PURCHASER OR OWNER IS RESPONSIBLE FOR THE PER-
FORMANCE OF THE REQUIRED MAINTENANCE AS DEFINED BY
THE MANUFACTURER IN THE OWNER/OPERATOR MANUAL.
THERE ARE NO OTHER EXPRESS WARRANTIES.
ANY WARRANTED PART WHICH IS NOT SCHEDULED FOR RE-
PLACEMENT AS REQUIRED MAINTENANCE, OR WHICH IS SCHED-
ULED ONLY FOR REGULAR INSPECTION TO THE EFFECT OF RE-
PAIR OR “REPLACE AS NECESSARY” SHALL BE WARRANTED FOR
THE WARRANTY PERIOD. ANY WARRANTED PART WHICH IS
SCHEDULED FOR REPLACEMENT AS REQUIRED MAINTENANCE
SHALL BE WARRANTED FOR THE PERIOD OF TIME UP TO THE
FIRST SCHEDULED REPLACEMENT POINT FOR THE PART.
IMPLIED WARRANTIES INCLUDING THOSE OF MERCHANT-
ABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
LIMITED TO TWO (2) YEARS OF HOME USE [ONE (1) YEAR
FOR ANY OTHER USE] FROM THE ORIGINAL DELIVERY DATE.
LIABILITIES FOR INCIDENTAL OR CONSEQUENTIAL DAM-
AGE UNDER ANY AND ALLWARRANTIES ARE EXCLUDED.
ANY REPLACEMENT PART THAT IS EQUIVALENT IN PERFOR-
MANCE AND DULABILITY MAY BE USED IN NON-WARRANTY
MAINTENANCE OR REPAIRS, AND SHALL NOT REDUCE THE
IF YOU NEED TO OBTAIN MORE INFORMATION, PLEASE CALL
YOUR NEAREST SERVICE CENTER, OR CHECK PLEASE
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