Please do not return product to retailer.
Por favor, no devuelva el producto al lugar de compra.
Veuillez ne pas retourner le produit au détaillant.
1--800--554--6723
Register your product online at:
Registre su producto en línea en:
Enregistrez votre produit en ligne à l’adresse :
Instruction Manual
Manual de Instrucciones
Manuel d’Instructions
For Occasional Use Only
WARNING:
Read and follow all Safety Rules andOperating Instructionsbefore
using this product. Failure to do so can result in serious injury.
ADVERTENCIA:
Lea el manual de instrucciones y siga todas las advertencias
e instrucciones de seguridad. El no hacerlo puede resultar en
lesiones graves.
AVERTISSEMENT:
Lire le manuel d’instructions et bien respecter tous les avertisse-
ments et toutes les instructions de sécurité. Tout défaut de le faire
pourrait entraîner des blessures graves.
McCulloch
9335 Harris Corners
Charlotte, NC 28269
McCulloch
850 Matheson Blvd. West
Mississauga, Ontario L5V 0B4
115377027 Rev. 1 5/1/10 BRW
Download from Www.Somanuals.com. All Manuals Search And Download.
MAINTAIN YOUR SAW IN GOOD
Safety Hat
Hearing
WORKING ORDER
Protection
Eye
S Have all chain saw service performed by a
qualified service dealer with the exception
of the items listed in the maintenance sec-
tion of this manual. For example, if improp-
er tools are used to remove or hold the fly-
wheelwhen servicingthe clutch, structural
damage to the flywheel can occur and
cause the flywheel to burst.
otection
Snug Fitti
Clothing
Heavy Duty
Gloves
S Make certain the saw chain stops moving
when the throttle trigger is released. For
correction, refer to CARBURETOR AD-
JUSTMENT.
ty Chaps
Safety Sh
S Never modify your saw in any way.
S Keep the handles dry, clean, and free of oil
or fuel mixture.
S Keep all parts of your body away from the
chain when the engine is running.
S Keep children, bystanders, and animals a
minimum of 30 feet (10 meters) away from
the work area. Do not allow other people
or animals to be near the chain saw when
starting or operating the chain saw.
S Do not handle or operate a chain saw when
you are fatigued, ill, or upset, or if you have
taken alcohol, drugs, or medication. You
must be in good physical condition and men-
tally alert. Chain saw work is strenuous. If
you have any condition that might be aggra-
vated by strenuous work, check with your
doctor before operating a chain saw.
S Carefully plan your sawingoperation inad-
vance. Do not start cutting until you havea
clear work area, secure footing, and, if you
are felling trees, a planned retreat path.
S Keep fuel and oil caps, screws, and fas-
teners securely tightened.
S Use only McCulloch accessories and re-
placement parts as recommended.
HANDLE FUEL WITH CAUTION
S Do not smoke while handling fuel or while
operating the saw.
S Eliminate all sources of sparks or flame in
the areas where fuel is mixed or poured.
There should be nosmoking, openflames,
or work that could cause sparks. Allow en-
gine to cool before refueling.
S Always have fire extinguishing tools avail-
able if you should need them.
S Mix and pour fuel in an outdoor area on
bare ground; store fuel in a cool, dry, well
ventilated place; and use an approved,
marked container for all fuel purposes.
Wipe up all fuel spills before starting saw.
S Move at least 10 feet (3 meters) from fuel-
ing site before starting engine.
S Turn the engine off and let saw cool in a
non-combustible area, not on dry leaves,
straw, paper, etc. Slowly remove fuel cap
and refuel unit.
S Storetheunit and fuel in an area where fuel
vapors cannot reach sparks or open
flames from water heaters, electric motors
or switches, furnaces, etc.
OPERATE YOUR SAW SAFELY
S Do not operate a chain saw with one hand.
Serious injury to the operator, helpers, by-
standers or any combination of these per-
sons may result from one-handed opera-
tion.
A
chain saw is intended for
two-handed use.
S Operate the chain saw only in a well-venti-
lated outdoor area.
S Do not operate saw from a ladder or in a
tree.
S Make sure the chain will not make contact
with any object while starting the engine.
Never try to start the saw when the guide
bar is in a cut.
S Do not put pressure on the saw at the end
of the cut. Applying pressure can cause
you to lose control when the cut is com-
pleted.
S Stop the engine before setting the saw
down.
S Do not operate a chain saw that is dam-
aged, improperly adjusted, or not com-
pletely and securely assembled. Always
replace bar, chain, hand guard, or chain
brake immediately if it becomes damaged,
broken or is otherwise removed.
S Hand carry saw only when engine is
stopped. Carry with muffler away from body;
guide bar and chain projecting behind you;
guide bar covered with a scabbard.
KICKBACK
WARNING: Avoid kickback which
can result in serious injury. Kickback is the
backward, upwardor sudden forwardmotion
of the guide bar occurring when the saw
chain near the upper tip of theguide bar con-
tacts any object such as a log or branch, or
when the wood closes in and pinches the
saw chain in the cut. Contacting a foreignob-
ject in the wood can also result in loss of
chain saw control.
S Rotational Kickback can occur when the
moving chain contacts an object at the up-
per tip of the guide bar. This contact can
cause the chain to dig into the object,
which stops the chain for an instant. The
result is a lightning fast, reverse reaction
which kicks the guide bar up and back to-
ward the operator.
3
Download from Www.Somanuals.com. All Manuals Search And Download.
S Begin and continue cutting at full speed. If
the chain is moving at a slower speed,
there is greater chance of kickback occur-
ring.
S Pinch-Kickback can occur when the the
wood closes in and pinches the moving
saw chain in the cut along the top of the
guide bar and the saw chain is suddenly
stopped. This sudden stopping of the
chain results in a reversal of the chain
force used to cut wood and causes the
saw to move in the opposite direction of the
chain rotation. The saw is driven straight
back toward the operator.
S Cut one log at a time.
S Use extreme caution when re-entering a
previous cut.
S Do not attempt cuts starting with the tip of
the bar (plunge cuts).
S Watch for shifting logs or other forces that
could close a cut and pinch or fall into
chain.
S Pull-In can occur when the moving chain
contacts a foreign object in the wood in the
cut along the bottom of the guide bar and the
saw chain is suddenly stopped. This sudden
stopping pulls the saw forward and away
from the operator and could easily cause the
operator to lose control of the saw.
S Use the Reduced--Kickback Guide Bar
and Low--Kickback Chain specified for
your saw.
MAINTAIN CONTROL
Avoid Pinch -Kickback:
Stand to
left of th
S Be extremely aware of situations or ob-
structions that can cause material to pinch
the top of or otherwise stop the chain.
S Do not cut more than one log at a time.
S Do not twist the saw as the bar is with-
drawn from an undercut when bucking.
Thumb on
underside of
handlebar
Avoid Pull -In:
S Always begin cutting with the engine at full
speed and the saw housing against wood.
S Use wedges made of plastic or wood.
Never use metal to hold the cut open.
Never
hand positions
Kickback Path
Elbow locked
Obstructions
Thumb on underside of
handlebar
S Keep a good, firm gripon the saw with both
hands when the engine is running and
don’t let go. A firmgrip will help you reduce
kickback and maintain control of the saw.
Keep the fingers of your left hand encir-
cling and your left thumb under the front
handlebar. Keep your right hand com-
pletely around the rear handle whether
your are right handed or left handed. Keep
your left arm straight with the elbow
locked.
Clear The Working Area
REDUCE THE CHANCE OF
KICKBACK
S Recognize that kickback can happen.
With a basic understanding of kickback,
you can reduce the element of surprise
which contributes to accidents.
S Never let themoving chain contact any ob-
ject at the tip of the guide bar.
S Keep the working area free from obstruc-
tions such as other trees, branches, rocks,
fences, stumps, etc. Eliminate or avoid
any obstruction that your saw chain could
hit while you are cutting. When cutting a
branch, do not let the guide bar contact
branch or other objects around it.
S Position your left hand on the front handle-
bar so it is in a straight line with your right
hand on the rear handle when making
bucking cuts. Never reverse right and left
hand positions for any type of cutting.
S Standwith your weight evenly balancedon
both feet.
S Keep your saw chain sharp and properly
tensioned. A loose or dull chain can in-
crease the chance of kickback occurring.
Follow manufacturer’s chain sharpening
and maintenance instructions. Check ten-
sion at regular intervals with the engine
stopped, never with the engine running.
Make sure the bar nuts are securely tight-
ened after tensioning the chain.
S Stand slightly to the left side of the saw to
keep your body from being in a direct line
with the cutting chain.
S Do not overreach. You could be drawn or
thrown off balance and lose control of the
saw.
S Do not cut above shoulder height. It is diffi-
cult to maintain control of saw above
shoulder height.
4
Download from Www.Somanuals.com. All Manuals Search And Download.
KICKBACK SAFETY FEATURES
CHAIN BRAKE AND CKA ANGLE
S Chain Brake, designed to stop the chain in
the event of kickback.
WARNING: The following features
are included on your saw to help reduce the
hazard of kickback; however, such features
will not totally eliminate this danger. As a
chain saw user, do not rely only on safety de-
vices. You must follow all safety precau-
tions, instructions, and maintenance in this
manual to help avoid kickback and other
forces which can result in serious injury.
S Reduced--Kickback Guide Bar, designed
with a small radius tip which reduces the
size of the kickback danger zone on the
bar tip. A Reduced--Kickback Guide Bar
has been demonstrated to significantly re-
duce the number and seriousness of kick-
backs when tested in accordance with
safety requirements for gasoline powered
chain saws as set by ANSI B175.1.
WARNING:
WE DO NOT REP-
RESENT AND YOU SHOULD NOT AS-
SUME THAT THE CHAIN BRAKE WILL
PROTECT YOU IN THE EVENT OF A KICK-
BACK. Kickback is a lightning fast action
which throws the bar and rotating chain back
and up toward the operator. Kickback can be
caused by allowing contact of the bar tip in the
danger zone with any hard object. Kickback
can also be caused by pinching the saw chain
along the top of the guide bar. This action may
push the guide bar rapidly back toward the op-
erator. Either of these events may cause you
to lose control of the saw which could result in
serious injury or even death. DO NOT RELY
UPON ANY OF THE DEVICES BUILT INTO
YOUR SAW. YOU SHOULD USE THE SAW
PROPERLY AND CAREFULLY TO AVOID
KICKBACK. Reduced--kickback guide bars
and low--kickback saw chains reduce the
chance and magnitude of kickback and are
recommended. Your saw has a low kickback
chain and bar as original equipment. Repairs
on a chain brake should be made by an autho-
rized servicing dealer. Take your unit to the
place of purchase if purchased from a servic-
ing dealer, or to the nearest authorized master
service dealer.
Reduced Kickback Symmetrical Guide Bar
Small Radius Tip
Symm
S Tip contact in some cases may cause a light-
ning fast reverse REACTION, kicking guide
bar up and back toward operator.
Large Radius Tip
S Pinching the saw chain along the top of the
guide bar may push the guide bar rapidly
back toward the operator.
S Low--Kickback Chain, designed with a
contoured depth gauge and guard link
which deflect kickback force and allow
wood to gradually ride intothe cutter. Low--
Kickback Chain has met kickback per-
formance requirements when tested on a
representative sample of chain saws be-
low 3.8 cubic inch displacement specified
in ANSI B175.1--2000.
S Either of these reactions may cause you to
lose control of the saw which could result in
serious injury. Do not rely exclusively upon
devices built into your saw.
WARNING:
Computed kickback
angle (CKA) listed on your saw and listed in the
CKA table below represents angle of kickback
your bar and chain combinations will have
when tested in accordance with CSA (Cana-
dian Standards Association) and ANSI stan-
dards. When purchasing replacement bar and
chain, considerations should be given to the
lower CKA values. Lower CKA values repre-
sent safer angles to the user, higher values in-
dicate more angle and higher kick energies.
Computed angles represented indicate total
energy and angle associated without activation
of the chain brake during kickback. Activated
angle represents chain stopping time relative to
activation angle of chain break and resulting
kick angle of saw. In all cases lower CKA val-
ues represent a safer operating environment
for the user.
Contoured Depth Gauge
Elongated Guard Link
Deflects
kickback force
Lo w --- Ki ckb a c k
and allows wood
Chain
to gradually ride
into cutter
Can Obstruct Material
Not a Lo---Chain
S Front Hand Guard, designed to reduce the
chance of your left hand contacting the chain
if your hand slips off the front handlebar.
S Position of front and rear handlebars, de-
signed with distance between handles and
“in-line” with each other. The spread and
“in-line” position of the hands provided by
this design work together to give balance
and resistance in controlling the pivot of
the saw back toward the operator if kick-
back occurs.
The following guide bar and chain combina-
tions meet kickback requirements of CSA
Standards Z62.1, Z62.3, & ANSI B175.1 when
used on saws listed in this manual. Use of bar
and chain combinations other than those listed
is not recommended and may not meet the
CKA requirements per standard.
5
Download from Www.Somanuals.com. All Manuals Search And Download.
Computed kickback angle (CKA) Table
BAR
CKA without chain brake
P/N
Length CHAIN P/N
18″ 530051478
MODEL
MC4218AV
530044693
33_
NOTE: If this saw is to be used for com-
mercial logging, a chain brake is required
and shall not be removed or otherwise dis-
abled to comply with Federal OSHA Regula-
tions for Commercial Logging.
SPECIAL NOTICE: Your saw is equipped
with a temperature limiting muffler and spark
arresting
screen
which
meets
the
requirements of California Codes 4442 and
4443. All U.S. forest land and the states of
California, Idaho, Maine, Minnesota, New
Jersey, Oregon, and Washington require by
law that many internal combustion engines to
be equipped with a spark arresting screen. If
you operate a chain saw in a state or locale
where such regulations exist, you are legally
responsible for maintaining the operating
condition of these parts. Failure to do so is a
violation of the law. Refer to the SERVICE
section for maintenance of the spark arresting
screen. Failure to follow all Safety Rules and
Precautions can result in serious injury. If
situations occur which are not covered in this
manual, use care and good judgement. If you
need assistance, contact your authorized
service dealer or call 1-800--554--6723.
WARNING: The engine exhaust
from this product contains chemicals known
to the State of California to cause cancer,
birth defects or other reproductive harm.
SAFETY NOTICE: Exposure to vibrations
through prolonged use of gasoline powered
hand tools could cause blood vessel or nerve
damage in the fingers, hands, and joints of
people prone to circulation disorders or
abnormal swellings. Prolonged use in cold
weather has been linked to blood vessel
damage in otherwise healthy people. If
symptoms occur such as numbness, pain,
loss of strength, change in skin color or texture,
or loss of feeling in the fingers, hands, or joints,
discontinue the use of this tool and seek
medical attention. An anti-vibration system
does not guarantee the avoidance of these
problems. Users who operate power tools on
a continual and regular basis must monitor
closely their physical condition and the
condition of this tool.
STANDARDS: This saw is listed by Under-
writer’s Laboratories, Inc., in accordance with:
ANSI B175.1-2000 American National
Standards for Gasoline--Powered Chain
Saws -- Safety Requirements
CSA Z62.1-03 Chain Saws -- Occupational
Health and Safety
CSA Z62.3-04 Chain Saw Kickback Occu-
pational Health and Safety
ASSEMBLY
Protective gloves (not provided) should be
worn during assembly.
ATTACHING THE BAR & CHAIN (If not
already attached)
Clutch cove
Bar nu
WARNING: If received assembled,
repeat all steps to ensure your saw is properly
assembled and all fasteners are secure. Al-
ways wear gloves when handling the chain.
The chain is sharp and can cut you even when
it is not moving!
Location of
shipping
spacer
1. Loosen and remove the bar nuts and the
clutch cover from the saw.
2. Remove the plastic shipping spacer (if
present).
Chain adjustment tool
(Bar Tool)
3. An adjusting pin and screw is used to ad-
just the tension of the chain. It is very im-
portant when assembling the bar, that the
pin located on the adjusting screw aligns
into a hole in the bar. Turning the screw will
move the adjustment pin up and down the
screw. Locate this adjustment before you
begin mounting the bar onto the saw. See
following illustration.
6
Download from Www.Somanuals.com. All Manuals Search And Download.
nside
view of
clutch
cover
Clut
Co
Adjustment located on clutch cover
4. Turn the adjusting screw by hand coun-
terclockwise until the adjusting pin just
touches the stop. This should allow the
pin to be near the correct position.
5. Slide guide bar on bar bolts until guide
bar stops against clutch drum sprocket.
12. Install bar nuts and finger tighten only.
Once the chain is tensioned, you will
need to tighten bar nuts.
CHAIN TENSION
(Including units with chain already installed)
WARNING: Wear protective gloves
when handling chain. The chain is sharpand
can cut you even when it is not moving.
NOTE: When adjusting chain tension,
make sure the bar nuts are finger tight only.
Attempting to tension the chain when the bar
nuts are tight can cause damage.
Bar bolts
Guide bar
6. Carefully remove the chain from the pack-
age. Hold chain with the drive links as
shown.
Checking the tension:
Use the screwdriver end of the chain adjust-
ment tool (bar tool) to move chain around guide
bar. If the chain does not rotate, it is too tight. If
the chain is too loose, it will sag below the bar.
Tip of
Bar
Guide
Bar
CUTTERS MUST FACE IN
DIIRECTION OF ROTATION
Chain Adjustment
Tool
Depth Gauge
Cutters
Bar Nuts
(Bar Tool)
Adjusting the tension:
Chain tension is very important. Chains
stretch during use. This is especially true
during the first few times you use your saw.
Always check chain tension each time be-
fore you start the chain saw.
Drive Links
1. Loosen bar nuts until they are finger tight
against the clutch cover.
7. Place chain over and behind the clutch
retainer, fitting the drive links in the
clutch drum sprocket.
2. Turn adjusting screw clockwise until chain
solidly contacts bottom of guide bar rail.
8. Fit bottom of drive links between the
teeth in the sprocket in the nose of the
guide bar.
9. Fit chain drive links into bar groove.
10. Pull guide bar forward until chain is snug
in guide bar groove. Ensure all drive
links are in the bar groove.
11. Now, install clutch cover making sure
the adjusting pin is positioned in the low-
er hole in the guide bar. Remember this
pin moves the bar forward and back-
ward as the screw is turned.
3. Using bar tool, roll chain around guide bar
to ensure all links are in bar groove.
7
Download from Www.Somanuals.com. All Manuals Search And Download.
4. Lift up tip of guide bar to check for sag.
7. If chain does not rotate, it is too tight.
Slightly loosen bar nuts and loosen
chain by turning the adjusting screw.
Retighten bar nuts.
8. If chain is too loose, it will sag below the
guide bar. DO NOT operate the saw if
the chain is loose.
Release tip of guide bar, then turn ad-
1
justing screw / turn clockwise. Repeat
4
until sag does not exist.
1
Adjusting Screw --
/
4
Turn
NOTE: The chain is tensioned correctly
when the weight of the chain does not cause it
to sag below the guide bar (with the chain saw
sitting in an upright position), but the chain still
moves freely around the guide bar.
5. While lifting tip of guide bar, tighten bar
nuts securely with the bar tool.
WARNING: If the saw is operated
with a loose chain, the chain could jump off the
guide bar and result in serious injury to the op-
erator and/or damage the chain making it un-
usable. If the chain jumps off the guide bar, in-
spect each drive link for damage. Damaged
chain must be repaired or replaced.
Bar Nuts
6. Use the screwdriver end of the bar tool
to move chain around guide bar.
OPERATION
KNOW YOUR CHAIN SAW
READ THIS INSTRUCTION MANUAL AND SAFETY RULES BEFORE OPERATING YOUR
CHAIN SAW. Compare the illustrations with your unit to familiarize yourself with the location of
the various controls and adjustments. Save this manual for future reference.
Front Handle
Front Hand Guard
Chain
Adjustment Tool
(Bar Tool)
Starter Rope
ON/STOP
Switch
Choke/
Fast Idle
Lever
Chain
Muffler
Bar Oil Fill Cap
Bar
Sprocket
Hole
Primer Bulb
Starter Housing
Fuel Mix Fill Cap
Cylinder Cover
Chain
Brake
C
D
o
Throttle
Lockout
Rear
Handle
Adjusting Screw
Guide Bar
Chain
Catcher
Throttle
Trigger
Bar Nuts
Clutch Cover
ON/STOP SWITCH
The ON/STOP SWITCH is used to stop the
engine.
THROTTLE TRIGGER
The THROTTLE TRIGGER controls engine
speed.
8
Download from Www.Somanuals.com. All Manuals Search And Download.
THROTTLE LOCK--OUT
CHAIN BRAKE
The THROTTLE LOCK--OUT must be
pressed before you can squeeze the throttle
trigger. This feature prevents you from acci-
dentally squeezing the trigger.
The chain brake is a device designed to stop
the chain if kickback occurs. The chain brake
activates automatically in the event of kick-
back. The chain brake activates manually if the
front hand guard is pushed forward. The chain
brake is disengaged by pulling the front hand
guard back toward the front handle as far as
possible.
CHOKE/FAST IDLE LEVER
The choke and fast idle are set by pulling the
CHOKE/FAST IDLE LEVER out to the full ex-
tent for cold starting or after refueling. The
choke provides additional fuel to the engine
during cold starting.
CHAIN TENSION
It is normal for a new chain to stretch during the
first 15 minutes of operation. You should check
your chain tension each time before you start
the chain saw. See CHAIN TENSION under
the ASSEMBLY section.
PRIMER BULB
The PRIMER BULB circulates fuel to the car-
buretor to provide quicker starting.
FUEL REQUIREMENTS
WARNING: If the saw is operated
with a loose chain, the chain could jump off
the guide bar and result in serious injury to
the operator and/or damage the chain mak-
ing it unusable.
This engine requires the use of minimum 87
octane [R+M]/2 clean gasoline.
IMPORTANT
Use of alcohol blended fuels (called gasohol or
using ethanol or methanol) can cause major
engine performance and durability problems.
BEFORE STARTING ENGINE
WARNING: Muffler is very hot dur-
ing and after use. Do not touch the muffler or
allow combustible material such as dry
grass or fuel to do so.
WARNING: Alternative fuels (not
gasoline) such as E--15 (15% alcohol), E--20
(20% alcohol), E--85 (85% alcohol) are NOT
classified as gasoline and are NOT approved
for use in 2--stroke gasoline engines. Use of al-
ternative fuels will cause problems such as: im-
proper clutch engagements, overheating, va-
por lock, power loss, lubrication deficiency,
deterioration of fuel lines, gaskets and internal
carburetor components, etc. Alternative fuels
cause high moisture absorption into the fuel/oil
mixture leading to oil and fuel separation.
BAR AND CHAIN LUBRICATION
The bar and chain require continuous lubri-
cation. Lubrication is provided by the auto-
matic oiler system when the oil tank is kept
filled. Lack of oil will quickly ruin the bar and
chain. Too little oil will cause overheating
shown by smoke coming from the chain and/
or discoloration of the bar.
WARNING: Be sure to read the fuel
handling information in the safety rules sec-
tionof this manual before you begin. If youdo
not understand the fuel handling information
do not attempt to fuel your unit. Seek help
from someone that does understand the in-
formation or call the customer assistance
help line at 1-800-554-6723.
FUELING ENGINE
WARNING: Remove fuel cap slow-
ly when refueling.
HELPFUL TIP
To obtain the correct oil mix
ratio, pour 3.2 ounces of
2-cycle synthetic oil into
one gallon of fresh gas.
In freezing weather oil will thicken, making it
necessary to thin bar and chain oil with a
small amount (5 to 10%) of #1 Diesel Fuel or
kerosene. Bar and chain oil must be free
flowing for the oil system to pump enough oil
for adequate lubrication.
This engine is certified to operate on un-
leaded gasoline. Before operation, gasoline
must be mixed with a good quality synthetic
2-cycle air-cooled engine oil designed to be
mixed at a ratio of 40:1. A 40:1 ratio is ob-
tained by mixing3.2fluidounces (95ml) of oil
with 1 gallon (4 liters) of unleaded gasoline.
Pour the entire contents of the 3.2 ounce (95
ml) container of oil into 1 gallon (4 liters) of
gasoline to achieve the proper fuel mixture.
DO NOT USE automotive or marine oil.
These oils will cause engine damage. When
mixing fuel follow the instructions printed on
the container. Once oil is added to gasoline,
shake container momentarily to assure that
the fuel is thoroughly mixed. Always read
and follow the safety rules relating to fuel be-
fore fueling your unit.
If bar and chain oil is not available, use a
good grade SAE 30 oil.
S Never use waste oil for bar and chainlubri-
cation.
S Always stop the engine before removing
the oil cap.
CHAIN BRAKE
Ensure chain brake is disengaged by pulling
the front hand guard back toward the front han-
dle as far as possible. The chain brake must be
disengaged before cutting with the saw.
WARNING: The chain must not
move when the engine runs at idle speed. If
the chain moves at idle speed refer to CAR-
BURETOR ADJUSTMENT within this
manual. Avoid contact with the muffler. A hot
muffler can cause serious burns.
CAUTION: Never use straight gasoline in
your unit. This will cause permanent engine
damage and void the limited warranty.
9
Download from Www.Somanuals.com. All Manuals Search And Download.
To stop the engine move the ON/STOP
switch to the STOP position.
To start the engine hold the saw firmly on the
ground as illustrated. Make sure the chain is
free to turn without contacting any object.
3. Pull choke/fast idle lever out to the full
extent (to the FULL CHOKE position).
4. Pull the starter rope sharply 5 times with
your right hand. Then, proceed to the
next step.
NOTE: If the engine sounds as if it is trying
to start before the 5th pull, stop pulling and
immediately proceed to the next step.
5. Push the choke/fast idle lever in to the
HALF CHOKE position.
Use only 15″ -- 1 8 ″ (40 -- 45 cm) of
rope per pull.
Hold saw firmly while pulling starter rope.
Starter Rope Handle
CHOKE/FAST IDLE LEVER
Left Hand
on Front
Handle
OFF
HALF
ULL
Right Foot Through Rear Handle
6. Pull the starter rope sharply with your
right hand until the engine starts.
7. Allow the engine to run for approximate-
ly 30 seconds. Then, squeeze and re-
lease the throttle trigger to allow engine
to return to idle speed.
STARTING A WARM ENGINE
1. Move ON/STOP switch to the ON posi-
tion.
2. Slowly press primer bulb 6 times.
3. To set the fast idle, pull the choke/fast
idle lever out to the full extent (to the full
choke position); then push the lever
back in to the HALF CHOKE position.
4. Pull the starter rope sharply with your
right hand until the engine starts.
WARNING: Do not attempt to throw
or drop--start the chain saw. Doing so will put
the operator at risk of serious injury due to
loss of control of the chain saw.
IMPORTANT POINTS TO REMEMBER
When pulling the starter rope, do not use the full
extent of the rope as this can cause the rope to
break. Do not let starter rope snap back. Hold
the handle and let the rope rewind slowly.
For cold weather starting, start the unit at
FULL CHOKE; allow the engine to warm up
before squeezing the throttle trigger.
NOTE: Do not attempt to cut material with
the choke/fast idle lever in the FULLCHOKE
position.
5. Squeeze and release throttle trigger to
allow engine to return to idle speed.
DIFFICULT STARTING (or starting a
flooded engine)
HELPFUL TIP
If your engine still does not
start after following these
instructions, please call
1-800-554 -6723.
The engine may be flooded with too much fuel
if it has not started after 10 pulls. Flooded en-
gines can be cleared of excess fuel by pushing
the choke/fast idle lever in completely (to the
OFF CHOKE position) and then following the
warm engine starting procedure listed above.
Ensure the ON/STOP switch is in the ON posi-
tion. Starting could require pulling the starter
rope handle many times depending on how
badly the unit is flooded. If engine fails to start,
refer to the TROUBLESHOOTING TABLE or
call 1-800-554-6723.
STARTING A COLD ENGINE (or warm
engine after running out of fuel)
NOTE: In the following steps, when the
choke/fast idle lever is pulled out to the full
extent, the correct throttle setting for starting
is set automatically.
NITION
WITCH
CHAIN BRAKE
ON
WARNING: If the brake band is
worn too thin it may break when the chain
brake is triggered. Witha broken brake band,
the chain brake will not stop the chain. The
chain brake should be replaced by an autho-
rized service dealer if any part is worn to less
than 0.020″ (0.5 mm) thick. Repairs on a
chain brake should be made by an autho-
rized service dealer. Take your unit to the
place of purchase if purchased from a ser-
vicing dealer, or to the nearest authorized
master service dealer.
STOP
Choke
Lever
1. Move ON/STOP switch to the ON posi-
tion.
2. Slowly press primer bulb 6 times.
10
Download from Www.Somanuals.com. All Manuals Search And Download.
S This saw is equipped with a chain brake.
The brake is designed to stop the chain if
kickback occurs.
S Practice cutting a few small logs using the
following techniques to get the “feel” of us-
ing your saw before you begin a major
sawing operation.
S The inertia--activated chain brake is
activated if the front hand guard is pushed
forward, either manually (by hand) or
automatically (by sudden movement).
S If the brake is already activated, it is
disengaged by pulling the front hand guard
back toward the front handle as far as
possible.
S
S
S
S
Squeeze the throttle trigger and allow the
engine to reach full speed before cutting.
Begin cutting with the saw frame
against the log.
Keep the engine at full speed the entire
time you are cutting.
Allow the chain to cut for you. Exert only
light downward pressure. If you force
the cut, damage to the bar, chain, or en-
gine can result.
S When cutting with the saw, the chain brake
must be disengaged.
Disengaged
S
Release the throttle trigger as soon as
the cut is completed, allowing the en-
gine to idle. If you run the saw at full
throttle without a cutting load, unneces-
sary wear can occur to the chain, bar,
and engine. It is recommended that
the engine not be operated for lon-
ger than 30 seconds at full throttle.
Toavoid losing control when cut is com-
plete, do not put pressure onsaw at end
of cut.
S
Braking function control
CAUTION: The chain brake must be
checked several times daily. The engine
must be running when performing this proce-
dure. This is the only instance when the saw
should be placed on the ground with the en-
gine running.
S Stop the engine before setting the saw
down after cutting.
TREE FELLING TECHNIQUES
WARNING: Check for broken or
dead branches which can fall while cutting
causing serious injury. Do not cut near build-
ings or electrical wires if you do not know the
direction of tree fall, nor cut at night since you
will not be ale to see well, nor during bad
weather such as rain, snow, or strong winds,
etc. If the tree makes contact with any utility
line, the utility company should be notified im-
mediately.
Place the saw on firm ground. Grip the rear
handlewith your right hand andthe front han-
dle with your left hand. Apply full throttle by
fully depressing the throttle trigger. Activate
the chain brake by turning your left wrist
against the hand guard without releasing
your grip around the front handle. The chain
should stop immediately.
Inertia activating function control
S Carefully plan your sawingoperation inad-
vance.
WARNING: When performing the
following procedure, the engine must be
turned off.
Grip the rear handle with your right hand and
the front handle with your left hand. Hold the
chain saw approximately 14″ (35 cm) above a
stump or other wooden surface. Release your
grip on the front handle and use the weight of
the saw to let the tip of the guide bar fall forward
and contact the stump. When the tip of the bar
hits the stump, the brake should activate.
S Clear thework area. You needa clear area
all around the tree so you can have secure
footing.
S The chain saw operator should keep on
the uphill side of the terrain as the tree is
likely to rollor slidedownhill after it is felled.
S Study the natural conditions that can cause
the tree to fall in a particular direction.
Natural conditions that can cause a tree to
fall in a particular direction include:
S The wind direction and speed.
OPERATING TIPS
S The lean of the tree. The lean of a tree
might not be apparent due to uneven or
sloping terrain. Use a plumb or level to de-
termine the direction of tree lean.
S Check chain tension before first use, after
1 minute of operation, and each time be-
fore you start the chain saw. See CHAIN
TENSION in the ASSEMBLY section.
S Cut wood only. Do not cut metal, plastics,
masonry, non-wood building materials, etc.
S Stop the saw if the chain strikes a foreign
object. Inspect the saw and repair or re-
place parts as necessary. If the chain
jumps off the guide bar, inspect the chain
for damaged drive links before reinstalling.
Burrs on drive links, which prevent them
from entering the groove of the guide bar,
can be removed with a flat file.
S Weight and branches on one side.
S Surrounding trees and obstacles.
Look for decay and rot. If the trunk is rotted,
it can snap and fall toward the operator.
Check for broken or dead branches which
can fall on you while cutting.
Make sure there is enough room for the tree to
fall. Maintain a distance of 2-1/2 tree lengths
from the nearest person or other objects. En-
gine noise can drown out a warning call.
Remove dirt, stones, loose bark, nails, sta-
ples, and wire from the tree where cuts are to
be made. Plan a clear retreat path to the rear
and diagonal to the line of fall.
S Keep the chain out of dirt and sand. Even a
small amount of dirt will dull a chain, increase
the possibility of kickback, and require chain
sharpening or replacement.
11
Download from Www.Somanuals.com. All Manuals Search And Download.
NOTE: Before felling cut is complete, use
wedges to open the cut if necessary to
controlthedirectionof fall. To avoid kickback
and chain damage, use wood or plastic
wedges, but never steel or iron wedges.
S Be alert to signs that the tree is ready to fall:
cracking sounds, widening of the felling cut,
or movement in the upper branches.
Plan a clear retreat path
Direction of Fall
45_
S As tree starts to fall, stop saw, put it down,
and get away quickly on your planned re-
treat path.
FELLING LARGE TREES
S DO NOT cut down a partially fallen tree
with your saw. Be extremely cautious with
partially fallen trees that may be poorly
supported. When a tree doesn’t fall com-
pletely, set thesaw asideand pull down the
tree with a cable winch, block and tackle,
or tractor.
(6 inches (15 cm) in diameter or larger)
The notch method is used to fell large trees.
A notch is cut on the side of the tree in thede-
sired direction of fall. After a felling cut is
made on the opposite side of tree, the tree
will tend to fall into the notch.
NOTE: If the tree has large buttress roots,
remove them before making the notch. If us-
ing saw to remove buttress roots, keep saw
chain from contacting ground to prevent dull-
ing of the chain.
CUTTING A FALLEN TREE
(BUCKING)
Bucking is the term used for cutting a fallen
tree to the desired log size.
NOTCH CUT AND FELLING THE
WARNING: Do not stand on the log
being cut. Any portion can roll causing loss
of footing and control. Do not stand downhill
of the log being cut.
TREE
S Make notch cut by cutting the top of the
notch first. Cut through 1/3 of the diameter
of the tree. Next complete the notch by cut-
ting the bottom of the notch. See illustra-
tion. Once the notch is cut remove the
notch of wood from the tree.
IMPORTANT POINTS
S Cut only one log at a time.
S Cut shattered wood very carefully; sharp
pieces of wood could be flung toward opera-
tor.
Final (felling) cut here, 2 inches
(5 cm) above center of notch.
S Use a sawhorse to cut small logs. Never
allow another person to hold the log while
cutting and never hold the log with your leg
or foot.
First cut
Notch
S Do not cut in an area where logs, limbs,
and roots are tangled such as in a blown
down area. Drag the logs into a clear area
before cutting by pulling out exposed and
cleared logs first.
Hinge
TYPES OF CUTTING USED FOR
BUCKING
Second cut
WARNING:
If saw becomes
pinched or hung in a log, don’t try to force it
out. You can lose control of the saw resulting
in injury and/or damage to the saw. Stop the
saw, drive a wedge of plastic or wood into the
cut until the saw can be removed easily. Re-
start the saw andcarefully reenter thecut. To
avoid kickback and chain damage, do not
use a metal wedge. Do not attempt to restart
your saw when it is pinched or hung in a log.
S After removing the wood from the notch,
make the felling cut on the opposite side of
the notch. This is done by making a cut about
two inches (5 cm) higher than the center of
the notch. This will leave enough uncut wood
between the felling cut and the notch to form
a hinge. This hinge will help prevent the tree
from falling in the wrong direction.
Hinge holds tree on stump and helps
control fall
Opening of
felling cut
Use a wedge to remove pinched saw
Turn saw OFF and use a plastic or
wooden wedge to force cut open.
Overcutting begins on the top side of the log
with the bottom of the saw against the log.
When overcutting use light downward pres-
sure.
Closing
of notch
12
Download from Www.Somanuals.com. All Manuals Search And Download.
st
1
Cut
Overcutting
Und
nd
2
Cut
Undercutting involves cutting on the under-
side of the log with top of saw against the log.
When undercutting use light upward pres-
sure. Hold saw firmly and maintain control.
The saw will tend to push back toward you.
Using a support stand
nd
2
Cut
WARNING: Never turn saw upside
down to undercut. The saw cannot be con-
trolled in this position.
st
1
Cut
Always make your first cut on the compres-
sion side of the log. The compression side of
the log is where the pressure of the log’s
weight is concentrated.
st
1
Cut
nd
2
Cut
First cut on compression side of log
LIMBING AND PRUNING
Second cut
Second cut
WARNING: Be alert for and guard
against kickback. Do not allow the moving
chain to contact any other branches or objects
at the nose of the guide bar when limbing or
pruning. Allowing such contact can result in
serious injury.
WARNING: Never climb into a tree to
limb or prune. Do not stand on ladders, plat-
forms, a log, or in any position which can cause
you to lose your balance or control of the saw.
First cut on compression side of log
BUCKING WITHOUT A SUPPORT
S Overcut through 1/3 of the diameter of the
log.
S Roll the log over and finish with a second
overcut.
IMPORTANT POINTS
S Work slowly, keeping both hands firmly
gripped on the saw. Maintain secure footing
and balance.
S Watch out for springpoles. Springpoles are
small size limbs which can catch the saw
chain and whip toward you or pull you off bal-
ance. Use extreme caution when cutting
small size limbs or slender material.
S Be alert for springback. Watch out for
branches that are bent or under pressure.
Avoid being struck by the branch or the
saw when the tension in the wood fibers is
released.
S Watch for logs with a compression side to
prevent the saw from pinching. See il-
lustrations for cutting logs with a compres-
sion side.
BUCKING USING A LOG OR
SUPPORT STAND
S Remember your first cut is always on the
compression side of the log.
(Refer to the illustrations below for your
first and second cut)
S Keep a clear work area. Frequently clear
branches out of the way to avoid tripping
over them.
S Your first cut should extend 1/3 of the
diameter of the log.
S Finish with your second cut.
LIMBING
S Always limb atreeafter it is cut down. Only
then can limbing be done safely and prop-
erly.
nd
Using a log for support
2
Cut
S Leave the larger limbs underneath the felled
tree to support the tree as you work.
S Start at the base of the felled tree and work
toward the top, cutting branches and limbs.
Remove small limbs with one cut.
S Keep the tree between you and the chain.
Cut from the side of the tree opposite the
branch you are cutting.
st
1
Cut
13
Download from Www.Somanuals.com. All Manuals Search And Download.
S Remove larger, supporting branches with
the cutting techniques described in BUCK-
ING WITHOUT A SUPPORT.
S Always use an overcut to cut small and free-
ly hanging limbs. Undercutting could cause
limbs to fall and pinch the saw.
S Next make a 2nd cut all the way through
the limb. Then cut a thirdovercut leavinga
1to2 inch (2.5 to 5cm) collar from thetruck
of the tree.
Second cut
Third cut
PRUNING
WARNING: Limit pruning to limbs
shoulder height or below. Do not cut if
branches are higher than your shoulder. Get a
professional to do the job.
S Make your first cut 1/3 of the way through the
bottom of the limb.
Collar
First cut
Pruning technique
SERVICE
GENERAL RECOMMENDATIONS
The warranty on this unit does not cover
items that have been subjected to operator
abuse or negligence. To receive full value
from the warranty, the operator must main-
tain unit as instructed in this manual. Various
adjustments will need to be made periodical-
ly to properly maintain your unit.
S Once a year, replace the spark plug, air filter,
and check guide bar and chain for wear. A
new spark plug and air filter assures proper
air-fuel mixture and helps your engine run
better and last longer.
WARNING: Disconnect the spark
plug before performing maintenance except
for carburetor adjustments.
We recommend all service and adjustments
not listed in this manual be performed by an
authorized or Master Service Dealer.
HELPFUL TIP
IMPORTANT: Have all
repairs other than the rec-
ommended maintenance
described in the instruction
manual performed by an
CHECK FOR DAMAGED OR
authorized service dealer.
WORN PARTS
If any dealer other than an authorized
service dealer performs work on the
product, we may not pay for repairs un-
der warranty. It is your responsibility to
maintain and perform general mainte-
nance.
Contact an authorized service dealer for re-
placement of damaged or worn parts.
NOTE: It is normal for a small amount of oil
to appear under the saw after engine stops.
Do not confuse this with a leaking oil tank.
S ON/STOP Switch -- Ensure ON/STOP
switch functions properly by moving the
switch to the STOP position. Make sure en-
gine stops; then restart engine and continue.
S Fuel Tank -- Do not use saw if fuel tank
shows signs of damage or leaks.
S Oil Tank -- Do not use saw if oil tank shows
signs of damage or leaks.
CHECK FOR LOOSE
FASTENERS AND PARTS
S Bar Nuts
S Chain
S Muffler
S Cylinder Shield
S Air Filter
S Handle Screws
S Vibration Mounts
S Starter Housing
S Front Hand Guard
MAINTENANCE SCHEDULE
Check:
Fuel mixture level . . . . Before each use
Bar lubrication . . . . . . . Before each use
Chain tension . . . . . . . Before each use
Chain sharpness . . . . . Before each use
For damaged parts . . . Before each use
For loose caps . . . . . . Before each use
For loose fasteners . . . Before each use
For loose parts . . . . . . Before each use
Inspect and Clean:
Bar . . . . . . . . . . . . . . . . Before each use
Complete saw . . . . . . . After each use
Air filter . . . . . . . . . . . . . Every 5 hours*
Chain brake . . . . . . . . . Every 5 hours*
Spark arresting screen
and muffler . . . . . . . . . . Every 25 hours*
Replace spark plug . Yearly
Replace fuel filter . . . Yearly
CHECK CHAIN SHARPNESS
* Hours of Operation --
Each hour of operation is approximately
2 tanks of fuel.
A sharp chain makes wood chips. A dull
chain makes a sawdust powder and cuts
slowly. See CHAIN SHARPENING.
14
Download from Www.Somanuals.com. All Manuals Search And Download.
CHECK GUIDE BAR
CHECK CHAIN BRAKE
See CHAIN BRAKE in the OPERATION
section.
Conditions which require guide bar mainte-
nance:
S Saw cuts to one side or at an angle.
S Saw has to be forced through the cut.
S Inadequate supply of oil to bar/chain.
Check the condition of guide bar each time
chain is sharpened. A worn guide bar will
damage the chain and make cutting difficult.
After each use, ensure ON/STOP switch is
in the STOP position, then clean all sawdust
from the guide bar and sprocket hole.
To maintain guide bar:
S Move ON/STOP switch to STOP.
S Loosen and remove bar nuts and clutch
cover. Remove bar and chain from saw.
S Clean the oil holes and bar groove after
each 5 hours of operation.
CLEAN AIR FILTER
CAUTION: Do not clean filter in gasolineor
other flammable solvent to avoid creating a
fire hazard or producing harmful evaporative
emissions.
Cleaning the air filter:
A dirty air filter decreases the life and perfor-
mance of the engine and increases fuel con-
sumption and harmful emissions. Always
clean your air filter after 10 tanks of fuel or 5
hours of operation, whichever comes first.
Clean more frequently in dusty conditions. A
used air filter can never be completely
cleaned. It is advisable to replace your air fil-
ter with a new one after every 50 hours of op-
eration, or annually, whichever comes first.
1. Loosen 3 screws on cylinder cover.
2. Remove cylinder cover.
Remove Sawdust From
Guide Bar Groove
3. Remove air filter cover and air filter.
4. Clean the air filter using hot soapy water.
Rinse with clean cool water. Air dry com-
pletely before reinstalling.
Oil Holes
5. Reinstall air filter and air filter cover.
6. Reinstall cylinder cover and 3 screws.
Tighten securely.
S Burring of guide bar rails is a normal
process of rail wear. Remove these burrs
with a flat file.
S When rail top is uneven, use a flat file to re-
store square edges and sides.
Cylinder
Air Filter
Cover
Cover
File Rail Edges
and Sides
Square
Air Filter
Worn Groove
Correct Groove
Replace guide bar when the groove is worn,
the guide bar is bent or cracked, or when ex-
cess heating or burring of the rails occurs. If re-
placement is necessary, use only the guide bar
specified for your saw in the repair parts list or
on the decal located on the chain saw.
CHECK FUEL MIXTURE LEVEL
S See FUELING ENGINE under the OP-
ERATION section.
LUBRICATION
INSPECT MUFFLER AND SPARK
ARRESTING SCREEN
As the unit is used, carbon deposits build up
on the muffler and spark arresting screen,
and must be removed to avoid creating a fire
hazard or affecting engine performance.
Replace the spark arresting screen if breaks
occur.
Bar Oil
Fill Cap
Spark
Arresting
Screen
Exhaust
Outlet
Cover
S See GUIDE BAR AND CHAIN OIL under
the OPERATION section.
INSPECT AND CLEAN UNIT AND
DECALS
S After each use, inspect complete unit for
loose or damaged parts. Clean the unit and
decals using a damp cloth with a mild deter-
gent.
Nut
Muffler
S Wipe off unit with a clean dry cloth.
15
Download from Www.Somanuals.com. All Manuals Search And Download.
CLEANING THE SPARK ARREST-
WARNING: Wear protective gloves
when handling chain. The chain is sharp and
can cut you even when it is not moving.
Conditions which indicate the need for chain
sharpening:
ING SCREEN
Cleaning is required every 25 hours of op-
eration or annually, whichever comes first.
1. Loosen and remove the nut from the ex-
haust outlet cover.
S Reduction in size of wood chips. The size
of the wood chip will decrease as the chain
gets duller until it becomes more like a
powder than a chip. Note that dead or
rotted wood will not produce a good chip.
S Saw cuts to one side or at an angle.
S Saw has to be forced through the cut.
Tools required:
S 5/32 inch (4 mm) diameter round file and
file holder
S Flat file
S Depth gauge tool
2. Remove the exhaust oulet cover.
3. Remove spark arresting screen. Handle
screen carefully to prevent damage.
4. Clean the spark arresting screen gently
with a wire brush. Replace screen if
breaks are found.
5. Replace any broken or cracked muffler
parts.
6. Reinstall spark arresting screen, exhaust
outlet cover, and nut. Tighten nut securely.
REPLACE SPARK PLUG
The spark plug should be replaced each
year to ensure the engine starts easier and
runs better. Ignition timing is fixed and non-
adjustable.
TO SHARPEN CHAIN:
1. Move ON/STOP switch to the STOP
position.
NOTE: This spark ignition system complies
with the Canadian standard ICES--002.
1. Loosen 3 screws on cylinder cover.
2. Remove the cylinder cover.
3. Pull off the spark plug boot.
4. Remove spark plug from cylinder and
discard.
2. Check chain for proper tension. Adjust
chain tension if necessary. See CHAIN
TENSION section.
3. Sharpen cutters.
S
To sharpen the cutters, position the
file holder level (90˚) so that it rests
on the top edges of the cutter and
depth gauge.
5. Replace with Champion RCJ--7Y spark
3
plug and tighten securely with a
/
4
inch
NOTE: The chain has both left and
(19 mm) socket wrench. Spark plug gap
should be 0.025 inch (0,6 mm).
right hand cutters.
File Holder
Cutter
6. Reinstall the spark plug boot.
File
7. Reinstall the cylinder cover and
screws. Tighten securely.
3
90˚
Cylinder
Cover
Depth Gauge
S
Align the 30˚ file holder marks paral-
lelwith thebar and to the center of the
chain.
Spark
Plug Boot
Cutter
30˚
File Holder Line
Cutter
Spark
Plug
S
Sharpen cutters on one side of the
chain first. File from the inside of each
cutter to the outside. Then, turn the
chain saw around and repeat the pro-
cess for the other side of the chain.
File on the forward stroke only. Use 2
or 3 strokes per cutting edge.
Keep all cutters the same length
when filing.
REPLACE FUEL FILTER
S
S
S
To replace fuel filter, drain your unit by run-
ning it dry of fuel. Remove fuel cap and its
connected retainer from tank. Pull filter from
tank and remove from line. Replace and re-
assemble.
File enough to remove any damage
to cutting edges (side plate and top
plate of cutter).
CHAIN ADJUSTMENT
See CHAIN TENSION in ASSEMBLY section.
CHAIN SHARPENING
Remove Damage
All Cutters
Same Length
WARNING: Improper chain sharp-
ening techniques and/or depth gauge mainte-
nance will increase the chance of kickback
which can result in serious injury.
Top Plate
Side Plate
16
Download from Www.Somanuals.com. All Manuals Search And Download.
S
File chain to meet the specifications
as shown.
If you require further assistance or are unsure
about performing this procedure, contact your
authorized service dealer or call our customer
assistance help line at 1--800--554--6723.
80˚
60˚
CARBURETOR ADJUSTMENT
WARNING: The chain will be moving
during most of this procedure. Wear your pro-
tective equipment and observe all safety pre-
cautions. The chain must not move at idle
speed.
The carburetor has been carefully set at the
factory. Adjustments may be necessary if
you notice any of the following conditions:
S Chain moves at idle. See IDLE SPEED--T
adjusting procedure.
S Saw will not idle. See IDLE SPEED--T ad-
justing procedure.
30˚
Hook Angle
0.025 inch
(0.65 mm)
Rounded
Corner
Right
Squared Off
Corner
Too Much Hook Angle
Idle Speed--T
Allow engine to idle. If the chain moves, idle is
too fast. If the engine stalls, idle is too slow. Ad-
just speed until engine runs without chain
movement (idle too fast) or stalling (idle too
slow). The idle speed screw is located in the
area above the primer bulb and is labeled T.
S Turn idle screw (T) clockwise to increase
engine speed.
Wrong
S Turn idle screw (T) counterclockwise to
decrease engine speed.
WARNING:
Maintain the proper
hook angle according to the manufacturer’s
specifications for the chain you are using. Im-
proper hook angle will increase the chance of
kickback which can result in serious injury.
4. Check and lower depth gauges.
If you require further assistance or are unsure
about performing this procedure, contact your
authorized service dealer or call our customer
assistance help line at 1--800--554--6723.
COOLING SYSTEM
File
Depth Gauge Tool
To keep the working temperature as low as
possible the machine is equipped with a
cooling system.
Depth Gauge
The cooling system consists of:
S Air intake on the starter
S Air guide plate
S
S
Place gauge tool on cutter.
S Fins on the flywheel
If the depth gauge is higher than the
depth gauge tool, file it level to the top of
the depth gauge tool.
S Cooling fins on the cylinder
S Cylinder cover (directs cold air over the
cylinder)
S
Maintain rounded front corner of
depth gauge with a flat file.
Clean the cooling system with a brush after
each use, more often in demanding condi-
tions. A dirty or blocked cooling system re-
sults in the machine overheating which
causes damage to the piston and cylinder.
NOTE: The very top of the depth
gauge should be flat with the front
half rounded off with a flat file.
STORAGE
SEASONAL STORAGE
WARNING: Perform the following
steps after each use:
Prepareyour unit for storage at theend of the
season or if it will not be used for 30 days or
more. If your chain saw is to be stored for a
period of time:
S Allow the engine to cool, and secure the
unit before storing or transporting.
S Store chain saw and fuel in a well venti-
lated area where fuel vapors cannot reach
sparks or open flames from water heaters,
electric motors or switches, furnaces, etc.
S Store chain saw with all guards in place
and position chain saw so that any sharp
object cannot accidentally cause injury.
S Store chain saw well out of the reach of
children.
S Clean saw thoroughly before storage.
S Store in a clean dry area.
S Lightly oil external metal surfaces and
guide bar.
S Oil the chain and wrap it in heavy paper or
cloth.
17
Download from Www.Somanuals.com. All Manuals Search And Download.
FUEL SYSTEM
ENGINE
Under FUELING ENGINE in the OPERA-
TION section of this manual, see message
labeled IMPORTANT regarding the use of
gasohol in your chain saw. Fuel stabilizer is
an acceptable alternative in minimizing the
formation of fuel gum deposits during stor-
age. Add stabilizer to the gasoline in the fuel
tank or fuel storage container. Follow the mix
instructions found on stabilizer containers.
Run engine at least 5 minutes after adding
stabilizer.
S Remove spark plug and pour 1 teaspoon
of 40:1, 2-cycle engine oil (air cooled)
through the spark plug opening. Slowly
pull the starter rope 8 to 10 times to distrib-
ute oil.
S Replace spark plug with new one of rec-
ommended type and heat range.
S Clean air filter.
S Check entire unit for loose screws, nuts,
and bolts. Replace any damaged, broken,
or worn parts.
S At the beginning of the next season, use
only fresh fuel having the proper gasoline
to oil ratio.
HELPFUL TIP
During storage of your gas/
oil mixture, the oil will sepa-
rate from the gas.
We recommend that you
shake the gas can weekly
to insure proper blending of
the gas and oil.
OTHER
S Do not store gasoline from one season to
another.
S Replace your gasoline can if it starts to
rust.
TROUBLESHOOTING TABLE
WARNING: Always stop unit and disconnect spark plug before performing all of
the recommended remedies below except remedies that require operation of the unit.
TROUBLE
CAUSE
REMEDY
Engine will not
start or will run
only a few
seconds after
starting.
1. Move ignition switch to ON.
2. See “Difficult Starting” in
Operation Section.
1. Ignition switch off.
2. Engine flooded.
3. Fill tank with correct fuel mixture.
4. Install new spark plug.
3. Fuel tank empty.
4. Spark plug not firing.
5. Fuel not reaching
carburetor.
5. Check for dirty fuel filter; replace.
Check for kinked or split fuel line;
repair or replace.
1. Idle speed requires
adjustment.
2. Carburetor requires
adjustment.
Engine will
not idle
properly.
1. See “Carburetor Adjustment” in the
Service and Adjustments Section.
2. Contact an authorized service dealer.
1. Clean or replace air filter.
Engine will not
accelerate,
lacks power,
or dies under
a load.
1. Air filter dirty.
2. Clean or replace plug and regap.
3. Disengage chain brake.
2. Spark plug fouled.
3. Chain brake engaged.
4. Carburetor requires
adjustment.
4. Contact an authorized service dealer.
Engine
1. Too much oil mixed with
gasoline.
1. Empty fuel tank and refill with
correct fuel mixture.
smokes
excessively.
1. Idle speed requires
adjustment.
2. Clutch requires repair.
1. See “Carburetor Adjustment” in the
Service and Adjustments Section.
2. Contact an authorized service dealer.
Chain moves
at idle speed.
18
Download from Www.Somanuals.com. All Manuals Search And Download.
LIMITED WARRANTY
McCulloch, a division of Husqvarna Con-
McCulloch, a division of Husqvarna
Consumer Outdoor Products N.A., Inc.
9335 Harris Corners
sumer Outdoor Products N.A., Inc., war-
rants tothe originalconsumer purchaser that
each new McCulloch brand gasoline chain
saw is free from defects in material and
workmanship andagrees torepair or replace
under this warranty any defective gasoline
chain saw as follows from the original date of
purchase.
Charlotte, NC 28269
1--800--554--6723 In Canada, contact:
McCulloch
850 Matheson Blvd. West
Mississauga, Ontario L5V 0B4
Giving the model number, serial number and
date of purchase of your product and the
name and address of the authorized dealer
from whom it was purchased.
THIS WARRANTY GIVES YOU SPECIFIC
LEGAL RIGHTS, AND YOU MAY HAVE
OTHER RIGHTS WHICH VARY FROM
STATE TO STATE.
2 YEARS - Parts and Labor, when used for
household purposes.
60 DAYS - Parts and Labor, when used for
commercial, professional, or income pro-
ducing purposes.
30 DAYS - Parts andLabor, if used for rental
purposes.
This warranty is not transferable and does
not cover damage or liability caused by im-
proper handling, improper maintenance or
alteration, or the use of accessories and/or
attachments not specifically recommended
by McCulloch for this chain saw. This war-
ranty does not cover tune--up, spark plugs,
filters, starter ropes, chain sharpening, bars,
chains, and other parts which wear and re-
quire replacement with reasonable use dur-
ing the warranty period. This warranty does
not cover predelivery setup, installation of
guide bar and chain, and normal adjust-
ments explained in the instruction manual
such as chain tension adjustments. This
warranty does not cover transportation
costs.
NO CLAIMS FOR CONSEQUENTIAL OR
OTHER DAMAGES WILL BE ALLOWED,
AND THERE ARE NO OTHER EXPRESS
WARRANTIES EXCEPT THOSE EX-
PRESSLY STIPULATED HEREIN.
SOME STATES DO NOT ALLOW LIMITA-
TIONS ON HOW LONG AN IMPLIEDWAR-
RANTY LASTS OR THE EXCLUSION OR
LIMITATIONS OF INCIDENTAL OR CON-
SEQUENTIAL DAMAGES, SO THE
ABOVE LIMITATIONS OR EXCLUSION
MAY NOT APPLY TO YOU.
This is a limited warranty within the meaning
of that term as defined in the Magnuson--
Moss Act of 1975.
The policy of McCulloch is to continuously
improve its products. Therefore, McCulloch
reserves the right to change, modify, or dis-
continue models, designs, specifications,
and accessories of all products at any time
without notice or obligation to any purchaser.
In the event you have a claim under this war-
ranty, you must return the product to an au-
thorized service dealer.
Should you have any unansweredquestions
concerning this warranty, please contact:
U.S. EPA/CALIFORNIA/ENVIRONMENT CANADA
EMISSION CONTROL WARRANTY STATEMENT
YOUR WARRANTY RIGHTS AND OB-
LIGATIONS: The U.S. Environmental
Protection Agency, California Air Resources
Board, Environment Canada and McCulloch
are pleased to explain the emissions control
system warranty on your year 2010 and later
small off--road engine. In California, all small
off--road engines must be designed, built, and
equipped to meet the State’s stringent anti--
smog standards. McCulloch must warrant
the emission control system on your small
off--road engine for the periods of time listed
below provided there has been no abuse,
neglect, or improper maintenance of your
small off--road engine. Your emission control
system includes parts such as the carburetor,
the ignition system and the fuel tank. Where a
warrantable condition exists, McCulloch will
repair your small off--road engine at no cost
to you. Expenses covered under warranty
include diagnosis, parts and labor.
MANUFACTURER’S WARRANTY COV-
ERAGE: If any emissions related part on
your engine (as listed under Emissions
Control Warranty Parts List) is defective or a
defect in the materials or workmanship of the
engine causes the failure of such an emission
related part, the part will be repaired or re-
placed by McCulloch. OWNER’S WARRAN-
TY RESPONSIBILITIES: As the small off--
road engine owner, you are responsible for
the performance of the required mainte-
nance listed in your instruction manual.
McCulloch recommends that you retain all
receipts covering maintenance on your
small off--road engine, but McCullochcannot
deny warranty solely for the lack of receipts
or for your failure to ensure the performance
of all scheduled maintenance. As the small
off--road engine owner, you should be aware
that McCulloch may deny you warranty cov-
erage if your small off--road engine or a part
of it has failed due to abuse, neglect, improp-
er maintenance, unapproved modifications,
or the use of parts not made or approved by
the original equipment manufacturer. You are
responsible for presenting your small off--road
engine to an McCulloch authorized repair cen-
19
Download from Www.Somanuals.com. All Manuals Search And Download.
ter as soon as a problem exists. Warranty re-
pairs should be completed in a reasonable
amount of time, not to exceed 30 days. If you
have any questions regarding your warranty
rights and responsibilities, you should contact
your nearest authorized service center, call
McCulloch at 1--800--554--6723, or send e-mail
correspondence to emission.warranty@
HCOP--emission.com. WARRANTY COM-
MENCEMENT DATE: The warranty period
begins on the date the small off--road engine
is purchased. LENGTH OF COVERAGE:
This warranty shall be for a period of two
years from the initial date of purchase, or un-
tiltheend of theproduct warranty (whichever
is longer). WHAT IS COVERED: REPAIR
OR REPLACEMENT OF PARTS. Repair or
replacement of any warranted part will be
performed at no charge to the owner at an
approved McCulloch servicing center. If you
have any questions regarding your warranty
rights and responsibilities, you should contact
your nearest authorized service center, call
McCulloch at 1--800--554--6723, or send e-mail
correspondence to emission.warranty@
HCOP--emission.com. WARRANTY PE-
RIOD: Any warranted part which is not
scheduled for replacement as required
maintenance, or which is scheduled only for
regular inspection to the effect of “repair or
replace as necessary” shall be warranted for
2 years. Any warranted part which is sched-
uled for replacement as required mainte-
nance shall be warranted for the period of
time up to the first scheduled replacement
point for that part. DIAGNOSIS: The owner
shall not be charged for diagnostic labor
which leads to the determination that a war-
ranted part is defective if the diagnostic work
is performed at an approved McCulloch
servicing center.
CONSEQUENTIAL DAMAGES: McCul-
loch may be liable for damages to other en-
gine components caused by the failure of a
warranted part still under warranty. WHATIS
NOT COVERED: All failures caused by
abuse, neglect, or improper maintenance
are not covered. ADD -ON OR MODIFIED
PARTS: The useof add--on or modifiedparts
can be grounds for disallowing a warranty
claim. McCulloch is not liable to cover fail-
ures of warranted parts caused by the use of
add--on or modified parts. HOW TO FILE A
CLAIM: If you have any questions regarding
your warranty rights and responsibilities,
you should contact your nearest authorized
service center, call McCulloch at
1--800--554--6723, or send e-mail corre-
spondence to emission.warranty@HCOP--
emission.com. WHERE TO GET WARRAN-
TY SERVICE: Warranty services or repairs
shall be provided at all McCulloch service cen-
ters. Call: 1--800--554--6723 or send e-mail cor-
respondence to emission.warranty@HCOP--
emission.com. MAINTENANCE, REPLACE-
MENT AND REPAIR OF EMISSION RE-
LATED PARTS: Any McCulloch approved
replacement part used in the performance of
any warranty maintenance or repair onemis-
sion related parts will be provided without
charge to the owner if the part is under war-
ranty. EMISSION CONTROL WARRANTY
PARTS LIST: Carburetor, air filter (covered up
to maintenance schedule), ignition system:
spark plug (covered up to maintenance sched-
ule), ignition module, muffler including catalyst
(if equipped), fuel tank. MAINTENANCE
STATEMENT: The owner is responsible for
the performance of all required maintenance
as defined in the instruction manual.
The information on the product label indicates which standard your engine is certified.
Example: (Year) EPA and/or CALIFORNIA.
This engine is certified to be emissions compliant for the following use:
Moderate (50 hours)
Intermediate (125 hours)
Extended (300 hours)
20
Download from Www.Somanuals.com. All Manuals Search And Download.
|