This product has been tested at a computed kickback angle (CKA) and conforms to ANSI B175.1-2000, Annex C.
CAN/CSA-Z62.1-03
WARNING • PLEASE READ
Beware of kickback. Hold chain saw firmly with both hands when using. For your own safety, please read and follow the
ety precautions in this manual before attempting to operate your chain saw. Improper use can cause serious injury.
saf
an
aiw
PN 9096-MD0707
inted in
Pr
T
INTRODUCTION1 - GENERAL INFORMATION
PLEASE READ
Dear Customer,
Thank you for purchasing a McCulloch product. With prop-
er operation and maintenance, it will provide you with years
of service.
In order to make the best use of your investment, be CER-
TAIN to familiarize yourself with the contents of the
ENTIRE user manual before attempting to operate and
maintain your unit.
Be sure to carefully follow the step-by-step instructions in
this manual to start, operate and maintain your new product.
In the manual there will be the following call-outs: NOTE:,WARNING / CAUTION and WARRANTY.
A NOTE: is used to convey additional information, to high-
light a particular explanation, or to expand a step description.
A WARNING or CAUTION identifies a procedure which, if
not undertaken or if improperly done, can result in serious
personal injury and/or damage to the unit.
The (WARRANTY SYMBOL) serves notice that unless
instructions or procedures are followed, any damage
caused will void the warranty and repairs will be at owner’s
expense.
Pay particular attention to the safety precautions. They are
written for your protection and contain important information you must know to safely operate your chain saw.
FOR WARRANTY OR SERVICE CONTACT THE NEAREST
AUTHORIZED SERVICE CENTER - LOCATE YOUR NEAR-
Other Safety Precautions
2-3. General Safety Precautions for chain saw users
2-4. More About Kickback
2-5. Kickback safety Labels
2-6. International Symbols
Numbers preceding the descriptions correspond with the
numbers above to help you locate the safety feature.
2 LOW KICKBACK SAW CHAIN helps significantly
reduce kickback, or the intensity of kickback, due to
specially designed depth gauges and guard links.
4 SPARK ARRESTER SCREEN retains carbon and
other flammable particles over 0.023 inches (0.6mm)
in size from engine exhaust flow. Compliance with
local, state and federal laws and/or regulations governing the use of a spark arrester screen is the user’s
responsibility
information.
5 CHAIN BRAKE
operator’s left hand in the event it slips off the front
handle while saw is running.
5 CHAIN BRAKE®is a safety feature designed to reduce
the possibility of injur
moving saw chain in milliseconds. It is activated by the
CHAIN BRAKE®lever.
OP SWITCH immediately stops the engine when
ST
10
tripped. Stop switch must be pushed to ON position to
start or restart engine.
SAFETY LA
11
the engine. Throttle trigger (19) cannot be squeezed
unless the safety latch is depressed.
CHAIN CA
20
vent saw chain breaks or derails during operation.
e
The chain catcher is designed to intercept a whipping
chain.
. See Safety Precautions for additional
®
LEVER / HAND GUARD protects the
y due to kickback by stopping a
ents accidental acceleration of
TCH pre
v
TCHER reduces the danger of injur
y in the
2 - SAFETY PRECAUTIONS
SAFETY PRECAUTIONS FOR CHAIN SAW USERS
(ANSI B175.1-2000, Annex C. CAN/CSA-Z62.1-03)
2-1.KICKBACK SAFETY PRECAUTIONS
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. If bar tip makes contact with
something it 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 lose control of the saw,
which could result in serious personal injury. Do not rely
exclusively upon the safety devices built into your saw. As
a chain saw user, you should take several steps to keep
your cutting jobs free from accident or injury.
1.With a basic understanding of kickback, you can
reduce or eliminate the element of surprise. Sudden
surprise contributes to accidents.
2.Keep a good firm 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 fingers encircling the chain saw
handles. A firm grip will help you reduce kickback and
maintain control of the saw. Don’t let go.
3.Make sure that the area in which you are cutting is
free from obstructions. 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.Do not overreach or cut above shoulder height.
6.Follow manufacturer’s sharpening and maintenance
instructions for the saw chain.
7.Only use replacement bars and chains specified by
the manufacturer or the equivalent.
w chain is chain that has met the
k sa
TE:Low-kic
NO
kickback performance requirements of ANSI B175.1-2000
ican National Standard for Power Tools Gasoline-
(Amer
ered Chain Sa
w
o
P
on the representative sample of chain saws below 3.8 c.i.d.
specified in ANSI B175.1-2000.
2-2.OTHER SAFETY PRECAUTIONS
1.DO NOT operate a chain saw with one hand! Serious
injury to the operator, helpers, bystanders, or any
combination of these persons may result from onehanded operation. A chain saw is intended for twohanded use.
DO NO
2.
3.Use safety footwear, snug-fitting clothing, protective
gloves, and eye, hearing and head protection devices.
kbac
T oper
ws Saf
ate a chain sa
ety Requirements) when tested
w when y
ou are f
atigued.
4.Use caution when handling fuel. Move the chain saw
at least 9.1m (30 feet) from the fueling point before
starting the engine.
5.DO NOT allow other persons to be near when starting
or cutting with the chain saw. Keep bystanders and
animals out of the work area.
6.DO NOT start cutting until you have a clear work area,
secure footing, and a planned retreat path from the
falling tree.
7.Keep all parts of your body away from the saw chain
when the engine is running.
8.Before you start the engine, make sure that the saw
chain is not contacting anything.
9.Carry the chain saw with the engine stopped, the
guide bar and saw chain to the rear, and the muffler
away from your body.
10. DO NOT operate a chain saw that is damaged,
improperly adjusted, or not completely and securely
assembled. Be sure that the saw chain stops moving
when the throttle control trigger is released.
11. Shut off the engine before setting the chain saw down.
12. Use extreme caution when cutting small size brush
and saplings because slender material may catch the
saw chain and be whipped toward you or pull you off
balance.
13. When cutting a limb that is under tension, be alert for
springback so that you will not be struck when the tension in the wood fibers is released.
14. Keep the handles dry, clean, and free of oil or fuel mix-
.
ture
15. Operate the chain saw only in well-ventilated areas.
16. DO NOT operate a chain saw in a tree unless you
ve been specifically trained to do so.
ha
17. All chain saw service, other than the items listed in the
user manual safety and maintenance instructions,
should be performed by competent chain saw service
personnel.
18. When transporting your chain saw, use the appropriate guide bar scabbard.
19. DO NOT operate your chain saw near or around flam-
le liquids or gases whether in or out of doors. An
mab
explosion and/or fire may result.
USE THE RIGHT TOOL: Cut wood only. Do not use
20.
the chain sa
or e
F
ed.
plastic
21. Do not attempt to add fuel or lubricating oil to saw
while engine is r
w f
xample
, masonry, or non-building materials.
, do not use the chain sa
unning.
poses f
or pur
or which it w
as not intend-
or cutting
w f
45
2 - SAFETY PRECAUTIONS
NOTE: These safety precautions are intended primarily for
the consumer or occasional user. When using a chain saw
for logging purposes, refer to the Code of Federal
Regulations, Section 1910.226(5); 2.5.1., of American
National Standard Safety Requirements for Pulpwood
Logging, ANSI 03.1-1978; and relevant state safety codes.
These models are classified according to CAN/ CSAZ62.1-03 as a Class 1C saw. They are intended for infrequent use by homeowners, cottagers, and campers, and for
such general applications as clearing, pruning, cutting firewood, etc. They are not intended for prolonged use. If the
intended use involves prolonged periods of operation, this
may cause circulatory problems in the user’s hands due to
vibration. All models covered in this manual employ an antivibration feature for increased comfort and safety.
2-3.GENERAL SAFETY PRECAUTIONS
FOR CHAIN SAW USERS
1.Fatigue causes carelessness. Be more cautious
before rest periods and towards the end of your shift.
2.Personal protective clothing required by your safety
organizations, government regulations, or your
employer should be used. At all times when using a
chain saw, snug-fitting clothing, protective eye wear,
safety footwear, and hand, leg, and hearing protection
should be worn.
3.Before refueling, servicing, or transporting your chain
saw, switch off the engine. To help prevent fire, restart
your chain saw at least 9.1m (30ft) from the fuelling
area.
4.When a chain saw is being used, a fire extinguisher
should be available.
5.When felling, keep at least 2 tree lengths away from
your fellow workers.
6.Plan your work, ensuring an obstacle-free work area
and, in the case of felling, at least one escape path
from the falling tree.
w the instructions in your operator’s manual for
ollo
F
7.
starting the chain saw and control the chain saw with
rip on both handles when it is in operation.
m g
a fir
Keep handles dry, clean, and free of oil.
8.When transporting your chain saw, use the appropri-
, which should be available
ers
anspor
ate tr
for the guide bar and saw chain.
9.Never operate a chain saw that is damaged or improperly adjusted or that is not completely and securely
assemb
when the power control system trigger is released.
ver adjust the guide bar or saw chain when the
Ne
engine is operating.
10.
Beware of carbon monoxide poisoning. Operate the
chain sa
11. Do not attempt a pruning or limbing operation in a
standing tree unless specifically trained to do so.
12. Guard against kickback. Kickback is the upward
motion of the guide bar that occurs when the sa
chain, at the nose of the guide bar, contacts an object.
tation co
Be sure that the saw chain stops moving
led.
w in w
v
entilated areas only
ell-v
.
Kickback can lead to dangerous loss of control of the
chain saw.
13. A chain saw is intended for two-handed use. Serious
injury to the operator, helpers, and/or bystanders can
result from one-handed oper
14. See section 2-5, 2-6 for symbol definitions, page 5.
15. When carrying a chain saw with the engine running,
engage the chain brake.
16. Allow your chain saw to cool before refueling, and do
not smoke.
17. Keep other persons or animals a safe distance away
from a running chain saw or the area where a tree is
being felled.
18. Use extreme caution when cutting small brush and
saplings because slender material can catch the saw
chain and be whipped toward you.
19. When cutting a limb that is under tension or compression, be alert for springback.
20. This gas-powered saw is classified according to CAN/
CSA-Z62.1-03 as a Class 1C saw. It is intended for
infrequent use by homeowners, cottagers, and
campers, and for such general applications as clearing, pruning, cutting firewood, etc. It is not intended for
prolonged use.
Prolonged periods of operation can cause circulatory
problems in the user’s hands due to vibration. For
such use, it may be appropriate to use a saw having
an anti-vibration feature.
ation.
2-4.MORE ABOUT KICKBACK
WARNING
DANGER! BEWARE OF KICKBACK!
Kickback can lead to dangerous loss of control of the chain
saw and result in serious or fatal injury to the saw operator
or to anyone standing close by. Always be alert. Rotational
kickback and pinch-kickback are major chain saw operational dangers and the leading cause of most accidents.
BEWARE OF:
ROTATIONAL KICKBACK (Figure 2-4A)
A = Kickback path
B = Kic
w
kback reaction zone
A
A
2-4A
B
A
Max. CKA 45
9052-MD0905
1 2 3 4 5
2 - SAFETY PRECAUTIONS3 - ASSEMBLY INSTRUCTIONS
THE PUSH (PINCH-KICKBACK) AND PULL
REACTIONS (Figure 2-4B)
A = Pull
B = Solid objects
C = Push
A
B
B
C
2-4B
KICKBACK may occur when the NOSE or TIP of the guide
bar touches an object, or when 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 toward
the operator.
PINCHING the saw chain along the BOTTOM of the guide
bar may PULL the saw forward away from the operator.
PINCHING the saw chain along the TOP of the guide bar
may PUSH the guide bar rapidly back toward the operator.
Any of these reactions may cause you to lose control of the
saw, which could result in serious personal injury.
2-5.KICKBACK SAFETY LABELS
Your McCulloch Chain Saw is provided with a safety label
located on the chain brake lever. This label, along with the
safety instructions on these pages, should be carefully read
before attempting to operate this unit.
HOW TO READ SYMBOLS AND COLORS:
RED
WARNING
Used to warn that an unsafe procedure should not be performed.
GREEN
Recommended cutting procedures.
RECOMMENDED
WARNING (Figure 2-5A)
1.Worst-case computed kickback angle.
2.Avoid bar nose contact.
3.Beware of kickback.
4.Do not attempt to hold saw with one hand.
RECOMMENDED
5.Hold saw properly with both hands.
2-5A
WARNING
The engine exhaust from this product contains chemi-
cals known to the State of California to cause cancer,
birth defects, or other reproductive harm.
2-6. INTERNATIONAL SYMBOLS
Read User Manual.
Wear head, eye and hearing protection.
Wear gloves to protect your hands.
Wear safety boots to protect against electric shock.
Use of these personal safety items is
highly recommended to reduce the risk
of accidental injur
67
y.
3-1.TOOLS FOR ASSEMBLY (YOUR SAW
WAS ASSEMBLED AT THE FACTORY)
ou will need these tools to assemble your chain saw:
Y
1. Combination wrench-screwdriver (contained in your
user’s kit or in lid of carry case).
2. Heavy duty work gloves (user supplied).
3-2.ASSEMBLY REQUIREMENTS
Your new chain saw will require adjustment of chain, filling
the fuel tank with correct fuel mixture and filling the oil tank
with lubricating oil before the unit is ready for operation.
WARNING
DO NOT start saw engine until unit is properly prepared.
Read the entire user manual before attempting to operate
your unit. Pay particular attention to all safety precautions.
Your user manual is both a reference guide and handbook
provided to furnish you with general information to assemble, operate and maintain your saw.
3-3.GUIDE BAR / SAW CHAIN / CLUTCH
COVER REMOVAL AND INSTALLATION
WARNING
Always wear protective gloves when handling chain.
TO INSTALL GUIDE BAR:
A
3-3A
3-3B
C
CAUTION
To ensure the bar and chain receive oil, ONLY USE THE
ORIGINAL STYLE BAR with the oil passage hole (A) as
illustrated above (Figure 3-3A).
1. Make sure the CHAIN BRAKE
the DISENGAGED position (Figure 3-3B)
2. Remove the bar retaining nut (B1) and the screw (B2)
at rear of clutch cover (C). Remove clutch cover (C) by
pulling straight out, some force may be required.
(Figure 3-3C)
3. Raise tip of bar so that it disengages from adjusting
tang.
Carefully disengage chain from bar and remove.
4.
5. Remove bar from saw by lifting it off of bar bolt.
6. Using a screwdriver or the wrench supplied in the
user’s kit or in the upper half of the carrying case. Turn
the adjustment scre
the TANG (E) (projecting prong) is to the end of its travel (Figure 3-3D).
7. Place the slotted end of the guide bar over the bar bolt
(F). Slide guide bar behind clutch drum (G) until the
guide bar stops (Figure 3-3E).
w (D) COUNTERCLOCKWISE until
®
lever is pulled back into
B1
B2
3-3C
D
E
3-3D
F
3-3E
G
3 - ASSEMBLY INSTRUCTIONS
TO INSTALL SAW CHAIN:
WARNING
Always wear heavy duty gloves when handling saw chain
or making sa
1.Spread chain out in a loop with cutting edges (A)
pointing CLOCKWISE around loop (Figure 3-3F).
2.Slip the chain around the sprocket (B) behind the
clutch (C). Make sure the links fit between the sprocket teeth (Figure 3-3G).
3.Guide the drive links into the groove (D) and around
the end of the bar (Figure 3-3G).
NOTE: The saw chain may droop slightly on the lower part
of bar. This is normal.
4.Pull guide bar forward until chain is snug. Ensure all
drive links are in the bar groove.
5.Install the clutch cover making sure the tang is posi-
tioned in the lower hole in the guide bar. Make sure
the chain does not slip off of the bar. Install the bar
retaining nuts hand tight and follow tension adjustment instructions in Section 3-4.
NOTE: The guide bar retaining nuts are installed only hand
tight at this point because saw chain adjustment is
required. Follow instructions in Section 3-4, Saw Chain
Tension Adjustment.
w chain adjustments.
A
3-4.SAW CHAIN TENSION ADJUSTMENT
Proper tension of saw chain is extremely important and
must be checked before starting, as well as during any cutting operation.
Taking the time to make needed adjustments to the saw
chain will result in improved cutting performance and prolonged chain life.
WARNING
Always wear heavy duty gloves when handling saw chain
or making saw chain adjustments.
TO ADJUST SAW CHAIN:
1.Hold nose of guide bar up and turn adjustment screw
(D) CLOCKWISE to increase chain tension. Turning
screw COUNTERCLOCKWISE will decrease amount
of tension on chain. Ensure the chain fits snugly all the
way around the guide bar (Figure 3-4A).
2.After making adjustment, and while still holding nose
of bar in the uppermost position, tighten the bar
retaining nuts securely. Chain has proper tension
when it has a snug fit all around and can be pulled
around by gloved hand.
NOTE: If chain is difficult to rotate on guide bar or if it binds,
too much tension has been applied. This requires minor
adjustment as follows:
A.Loosen the bar retaining nuts so it is finger tight.
Decrease tension by turning the bar adjustment screw
COUNTERCLOCKWISE slowly. Move chain back and
forth on bar. Continue to adjust until chain rotates
freely, but fits snugly. Increase tension by turning bar
adjustment screw CLOCKWISE.
B.When saw chain has proper tension, hold nose of bar
in uppermost position and tighten the bar retaining nut
securely.
3-3F
B
D
D
3-4A
C
3-3G
89
3 - ASSEMBLY INSTRUCTIONS
CAUTION
w saw chain stretches, requiring adjustment after as
A ne
few as 5 cuts. This is normal with a new chain, and the
interval between future adjustments will lengthen quickly.
CAUTION
If saw chain is TOO LOOSE or TOO TIGHT, the sprocket,
bar, chain, and crankshaft bearings will wear more rapidly.
Study Figure 3-4B for information concerning correct cold
tension (A), correct warm tension (B), and as a guide for
when saw chain needs adjustment (C).
A
3-5. CHAIN BRAKE®MECHANICAL TEST
Your chain saw is equipped with a CHAIN BRAKE®that
reduces possibility of injury due to kickback. The brake is
activated if pressure is applied against brake lever when,
as in the event of kickback, operator’s hand strikes the
lever. When the brake is actuated, chain movement stops
abruptly.
B
3-4B
C
To Test CHAIN BRAKE®:
1. The CHAIN BRAKE®is DISENGAGED (chain can
move) when BRAKE LEVER IS PULLED BACK AND
LOCKED (Figure 3-5A).
The CHAIN BRAKE
2.
when brake lever is in forward position. You should not
be able to move chain (Figure 3-5B).
NOTE: The brake lever should snap into both positions. If
strong resistance is felt, or lever does not move into either
position, do not use your saw. Take it immediately to an
Authorized Service Center for repair.
®
is ENGA
3-5A
GED (chain is stopped)
WARNING
The purpose of the CHAIN BRAKE®is to reduce the possibility of injury due to kickback; however, it cannot provide
the intended measure of protection if the saw is operated
carelessly.
Always test the CHAIN BRAKE®before using your saw and
periodically while on the job.
3-5B
4 - FUEL AND LUBRICATION
4-1.FUEL
Use regular g
Factory Parts 40:1 custom 2-cycle engine oil for best
results. Use mixing ratios in Section 4-3.
Never use straight gasoline in your unit. This will cause
permanent engine damage and void the manufacturer’s warranty for that product. Never use a fuel mixture that
has been stored for over 90 days.
If 2-cycle lubricant other than Genuine Factory Parts
Custom Lubricant is to be used, it must be a premium
grade oil for 2-cycle air cooled engines mixed at a 40:1
ratio.Do not use any 2-cycle oil product with a recommended mixing ratio of 100:1. If insufficient lubrication is the
cause of engine damage, it voids the manufacturer’s
engine warranty for that occurrence.
rade unleaded gasoline mixed with Genuine
4-2.MIXING FUEL
Mix fuel with Genuine Factory Parts brand 2 cycle oil in an
approved container. Use mixing table for correct ratio of fuel
to oil. Shake container to ensure thorough mix.
Lack of lubrication voids engine warranty.
4-3.FUEL AND LUBRICATION SYMBOLS
FUEL MIXING TABLE
4-4.RECOMMENDED FUELS
Some conventional gasolines are being blended with oxygenates such as alcohol or an ether compound to meet
clean air standards. Your McCulloch engine is designed to
operate satisfactorily on any gasoline intended for automotive use including oxygenated gasolines.
4-5.CHAIN AND BAR LUBRICATION
Always refill the chain oil tank each time the fuel tank is
refilled. We recommend using Genuine Factory Parts
Chain, Bar and Sprocket Oil, which contains additives to
reduce friction and wear and to assist in the prevention of
pitch formation on the bar and chain.
Oil Only
Gasoline and Oil
Mix 40:1
1011
5 - OPERATING INSTRUCTIONS
5-1.ENGINE PRE-START CHECKS
WARNING
Never start or operate the saw unless the bar and chain are
ly installed.
proper
1. Fill the fuel tank (A) with correct fuel mixture (Figure 5-
1A).
2. Fill the oil tank (B) with correct chain and bar oil (Figure
5-1A).
3. Be certain the CHAIN BRAKE
before starting unit (Figure 5-1A).
NOTE: See page 9 Fig. 3-5A & 3-5B.
C
B
5-1A
5-2.TO START ENGINE
1. Press red STOP switch to the “I” ON position (Fig. 5-
2A).
2. Pull the blue lever (D) out as far as it will go until the
blue lever stays out (Fig. 5-2B).This advances the throttle so you do not have to hold the trigger while starting.
3. Fully press and release the primer bulb (E) 10 times,
slowly. Some amount of fuel should be visible in the
primer bulb (Fig. 5-2C). If you can’t see fuel in the bulb,
press and release the bulb as many times as it takes
before you can see fuel in it.
4. Place the saw on a firm flat surface. Hold saw firmly as
shown (Fig. 5-2D).
Pull the rope with a controlled and steady motion 4
5.
lue le
e the b
Then mo
.
times
2E).
NOTE: The unit uses Smooth Pull™, which
significantly reduces the effort required to start the engine.
ust pull the star
ou m
Y
engine attempt to start. There is no need to pull the rope
briskly-- there is no harsh resistance when pulling. Be
aware that this starting method is vastly different from (and
uch easier than) what y
m
Hold sa
6.
could take 4 more pulls.
7. Let the saw warm up for 10 seconds. Depress and
release tr
v
ter rope out far enough to hear the
ou ma
mly and pull rope until sa
w fir
igger (G) f
or idle (Fig.
®
is disengaged (C)
er (F) all the way in (Fig. 5-
v
y be used to
5-2F).
.
w star
This
.
ts
A
- If unit does not Idle after restarting 2 times, follow these
steps to adjust idle.
1. Idle adjustment access (H). (Figure 5-2G)
Using a Phillips or slotted screwdriver - turn screw 1/4
2.
to 1/2 turn clockwise (to the right). Unit should then idle
properly. (Figure 5-2H)
NOTE: If chain turns while idling - turn screw back to the
left until chain stops and unit continues to idle.
D
5-2A
E
5-2C
F
5-2E5-2F
H
5-2G5-2H
5-2B
5-2D
G
IMPORTANT IDLING INFORMATION
In some cases due to operating conditions (altitude, temperature etc.) your chain saw may need a slight adjustment
to the idle speed.
After warm up - See the User's Manual section 5-2, step 7
5 - OPERATING INSTRUCTIONS
5-3.RE-STARTING A WARM ENGINE
1. Make sure switch is on.
2. Pull blue choke all the way out and then push it back
in-This advances the throttle so you do not have to
igger during starting.
hold tr
3. Push primer10x or until you see fuel in the bulb.
4. Pull rope until engine starts.
5. Depress and release trigger for idle.
5-4.TO STOP ENGINE
1. Release trigger and allow engine to return to idle
speed.
2. Press STOP switch down to stop engine Figure 5-4A.
Activate the CHAIN BRAKE®slowly and deliberately. Keep
the chain from touching anything; don’t let the saw tip for-
ard.
w
6. Chain should stop abruptly. When it does, immediately
release the throttle trigger.
WARNING
If chain does not stop, turn engine off and take your unit to
the nearest Authorized Service Center for service.
7. If CHAIN BRAKE
off and return the CHAIN BRAKE
GED position.
GA
A
®
functions properly, turn the engine
B
5-5A
®
to the DISEN-
C
5-4A
INERTIA CHAIN BRAKE®ACTION :
NOTE: THIS SAW IS EQUIPPED WITH AN INERTIA
CHAIN BRAKE.IF THE SAW KICKS BACK WHILE IN USE,
THE INER
THE BRAKE. A BRAKE BAND AROUND THE CLUTCH
DRUM ACTIVATES AND STOPS THE MOVING CHAIN.
TIA OF THE MOVING SAW WILL ACTIVATE
5-5.CHAIN BRAKE®OPERATIONAL TEST
Test the CHAIN BRAKE®periodically to ensure proper
function.
m a CHAIN BRAKE
or
erf
P
ing extensive cutting, and definitely following any CHAIN
BRAKE
®
service.
TEST CHAIN BRAKE®AS FOLLO
1. Place saw on a clear, firm, flat surface.
2. Start engine.
3. Grasp the rear handle (A) with your right hand (Figure
5-5A).
With y
4.
CHAIN BRAKE
5. Squeeze the throttle trigger to 1/3 throttle, then immediately activate the CHAIN BRAKE®lever (C) (Figure 55A).
our left hand, hold the front handle (B) [not
®
ior to initial cutting, f
test pr
WS:
®
lever (C)] firmly (Figure 5-5A).
ollo
w
5-6.SAW CHAIN / BAR LUBRICATION
Adequate lubrication of the saw chain is essential at all
times to minimize friction with the guide bar.
Never starve the bar and chain of oil. Running the saw with
too little oil will decrease cutting efficiency, shorten saw
chain life, cause rapid dulling of chain, and cause excessive wear of bar from overheating. Too little oil is evidenced
by smoke, bar discoloration or pitch build-up.
NOTE: Saw chain stretches during use, particularly when it
is new, and it will occasionally be necessary to adjust and
tighten it. New chain will require adjustment after about 5
utes of operation.
min
-
5-7.AUTOMATIC OILER
en
our chain sa
Y
oiler system.
amount of oil to the bar and chain. As the engine speed
increases
w adjustment.
flo
mately the same time as the fuel supply runs out.
w is equipped with an automatic clutch dr
The oiler automatically deliv
, so does the oil flo
The oil reser
w to the bar pad.
oir will r
v
ers the proper
un out at appro
There is no
iv
xi
-
1213
6 - GENERAL CUTTING INSTRUCTIONS
6-1.FELLING
elling is the term for cutting down a tree. Small trees up to
F
6-7 inches (15-18cm) in diameter are usually cut in a single
cut. Larger trees require notch cuts. Notch cuts determine
the direction the tree will fall.
FELLING A TREE:
WARNING
A retreat path (A) should be planned and cleared as necessary before cuts are started. The retreat path should
extend back and diagonally to the rear of the expected line
of fall, as illustrated in Figure 6-1A.
CAUTION
If felling a tree on sloping ground, the chain saw operator
should keep on the uphill side of the terrain, as the tree is
likely to roll or slide downhill after it is felled.
NOTE: Direction of fall (B) is controlled by the notching cut.
Before any cuts are made, consider the location of larger
branches and natural lean of the tree to determine the way
the tree will fall.
WARNING
Do not cut down a tree during high or changing winds or if
there is a danger to property. Consult a tree professional.
Do not cut down a tree if there is a danger of striking utility
wires; notify the utility company before making any cuts.
GENERAL GUIDELINES FOR FELLING
TREES:
Normally felling consists of 2 main cutting operations,
notching (C) and making the felling cut (D).
Start making the upper notch cut (C) on the side of the tree
facing the felling direction (E). Be sure you don t make the
lower cut too deep into the trunk.
The notch (C) should be deep enough to create a hinge (F)
of sufficient width and strength.
enough to direct the fall of the tree for as long as possible.
The notch should be wide
FELLING CUT:
Use wooden or plastic wedges (G) to prevent binding
1.
the bar or chain (H) in the cut. Wedges also control
felling (Figure 6-1C).
2. When diameter of wood being cut is greater than the
bar length, make 2 cuts as shown (Figure 6-1D).
WARNING
As the felling cut gets close to the hinge, the tree should
begin to fall.When tree begins to fall, remove saw from cut,
stop engine, put chain saw down, and leave area along
retreat path (Figure 6-1A).
B
A
6-1A
6-1B
G
H
WARNING
Never walk in front of a tree that has been notched.
Make the felling cut (D) from the other side of the tree and
1.5 - 2.0 inches (3-5 cm) above the edge of the notch (C)
(Figure 6-1B).
Never saw completely through the trunk. Always leave a
hinge
. The hinge guides the tree. If the trunk is completely
cut through, control over the felling direction is lost.
Insert a wedge or felling lever in the cut well before the tree
becomes unstable and starts to move. This will prevent the
ve mis-
guidebar from binding in the f
judged the f
entered the range of the falling tree before you push it over.
alling direction.
elling cut if y
e sure no b
Mak
ou ha
ystanders ha
v
WARNING
Before making the final cut, always recheck the area for
bystanders, animals or obstacles.
6-1C
e
6-1D
6 - GENERAL CUTTING INSTRUCTIONS
6-2. LIMBING
Limbing a tree is the process of remo
from a fallen tree. Do not remove supporting limbs (A) until
after the log is bucked (cut) into lengths (Figure 6-2A).
Branches under tension should be cut from the bottom up
to avoid binding the chain saw.
ving the branches
WARNING
Never cut tree limbs while standing on tree trunk.
A
6-2A
6-3.BUCKING
Bucking is cutting a fallen log into lengths. Make sure you
have a good footing and stand uphill of the log when cutting
on sloping ground. If possible, the log should be supported
so that the end to be cut off is not resting on the ground. If
the log is supported at both ends and you must cut in the
middle, make a downward cut halfway through the log and
then make the undercut. This will prevent the log from
pinching the bar and chain. Be careful that the chain does
not cut into the ground when bucking as this causes rapid
dulling of the chain.
When bucking on a slope, always stand on the uphill side.
1.Log supported along entire length: Cut from top (over-
k), being careful to a
uc
b
(Figure 6-3A).
2.Log supported on 1 end: First, cut from bottom (under-
buck) 1/3 diameter of log to avoid splintering. Second,
cut from above (overbuck) to meet first cut and avoid
pinching (Figure 6-3B).
3.Log supported on both ends: First, overbuck 1/3 diam-
eter of log to avoid splintering. Second, underbuck to
meet first cut and avoid pinching (Figure 6-3C).
NOTE: The best way to hold a log while bucking is to use a
sawhorse. When this is not possible, the log should be
raised and supported by the limb stumps or by using supporting logs. Be sure the log being cut is securely supported.
void cutting into the ground
6-3B
6-3C
6-4.BUCKING USING A SAWHORSE
For personal safety and ease of cutting, the correct position
for vertical bucking is essential (Figure 6-4A).
VERTICAL CUTTING:
A. Hold the saw firmly with both hands and keep the saw
to the right of your body while cutting.
B. Keep the left arm as straight as possible.
C. Keep weight on both feet.
CAUTION
While the saw is cutting, be sure the chain and bar are
being properly lubricated.
B
A
C
6-3A
6-4A
1415
7 - MAINTENANCE INSTRUCTIONS
All chain saw service, other than items listed here in your user manual maintenance
instructions, should be performed by your nearest Authorized Service Center.
7-1.PREVENTIVE MAINTENANCE
A good preventive maintenance program of regular inspection and care will increase life and improve performance of your
McCulloch chain saw. This maintenance checklist is a guide for such a program.
Cleaning, adjustment, and parts replacement may be required, under certain conditions, at more frequent intervals than those
indicated.
MAINTENANCE CHECKLIST
ITEM
SCREWS / NUTS / BOLTS
AIR FILTER
FUEL FILTER / OIL FILTER
SPARK PLUG
SPARK ARRESTER SCREEN
FUEL HOSES
ACTION
INSPECT / TIGHTEN
CLEAN OR REPLACE
REPLACE
CLEAN / ADJUST / REPLACE
INSPECT
REPLACE AS REQUIRED
INSPECT
*REPLA
CE AS REQ
UIRED
EACH USE
✔
✔
✔
OPERATION
10
✔
✔
✔
HOURS OF
20
✔
CHAIN BRAKE®COMPONENTS
*Recommended f
or Maintenance b
INSPECT
*REPLA
uthor
y a A
CE AS REQ
ed Ser
iz
UIRED
vice Center
echnician.
T
✔
7 - MAINTENANCE INSTRUCTIONS
7-2.AIR FILTER
CAUTION
ver operate saw without the air filter. Dust and dirt will be
Ne
drawn into engine and damage it. Keep the air filter clean!
TO CLEAN AIR FILTER:
1. Remove the top cover (A) by loosening the cover
retaining screws. Cover will lift off.(Figure 7-2A)
2. Lift the air filter (B) out of air-box (C) (Figure 7-2B).
3. Clean air filter. Wash filter in clean, warm, soapy water.
Rinse in clear, cool water. Air dry completely.
NOTE: It is advisable to have a supply of spare filters.
4. Install air filter. Install engine / air filter cover. Make sure
cover fits properly. Tighten the cover retaining screws
securely.
WARNING
Never perform maintenance when the engine is hot, to
avoid any chance of burning hands or fingers.
A
7-2A
B
5. Pull filter off with a twisting motion. Discard filter.
6. Install new filter. Insert end of filter into tank opening.
Make sure filter sits in bottom corner of tank. Use a long
handle scre
sary.
7. Fill tank with fresh fuel / oil mixture. See Section 4, Fuel
and Lubrication. Install fuel cap.
wdriver to aid in filter placement if neces-
A
7-3A
7-4.SPARK ARRESTER SCREEN (Figure 74A)
NOTE: A clogged spark arrester screen will dramatically
reduce engine performance.
1. Remove the 3 bolts (A) and pull muffler out. (Figure74A).
2. Remove the 2 screws (B) that hold the spark arrester
cover (C) . (Figure 7-4B)
3. Discard the used spark arrester screen (D) and replace
it with a new one.
4. Reasemble the muffler components and install the muffler to the cylinder. Tighten securely.
C
7-2B
7-3.FUEL FILTER
CAUTION
Never operate your saw without a fuel filter. The fuel filter
should be replaced after each 20 hours of use
0tank completely bef
1. Completely remove the fuel cap from the gas tank.
Bend a piece of soft wire.
2.
Reach into fuel tank opening and hook fuel line
3.
Carefully pull the fuel line toward the opening until you
can reach it with y
TE:
NO
4. Lift filter (A) out of tank (Figure 7-3A).
Do not pull hose completely out of tank.
ore changing filter
our fingers.
.
. Drain fuel
A
7-3A
A
B
C
D
.
7-4B
1617
7 - MAINTENANCE INSTRUCTIONS
7-5.SPARK PLUG
NOTE: For efficient operation of saw engine, spark plug
ust be kept clean and properly gapped.
m
1. Push STOP switch down.
Remove air cleaner cover.
2.
3. Disconnect the wire connector (G) from the spark plug
(H) by pulling and twisting at the same time (Figure 75A).
4. Remove spark plug with spark plug socket wrench. DO
NOT USE ANY OTHER TOOL.
5. Check electtrode gaps with wire feeler gauge and set
gaps to .025” (.635mm) if necessary.
6. Reinstall a new spark plug.
NOTE: A resistor spark plug must be used for replacement
(McCulloch part no. 9295-310502).
NOTE: This spark ignition system meets all requirements
of the Canadian Interferen-Causing Equipment
Regulations.
H
G
7-3A
4.Using a spark plug wrench, remove the spark plug.
5.Pour 1 teaspoon of clean 2-cycle oil into the combustion chamber. Pull starter rope slowly several times to
coat internal components. Replace spark plug (Figure
7-7A).
NOTE: Store the unit in a dry place and away from possible sources of ignition such as a furnace, gas hot water
heater, gas dryer, etc.
7-7A
7-8.REMOVING A UNIT FROM STORAGE
1.Remove spark plug.
2.Pull starter rope briskly to clear excess oil from combustion chamber.
3.Clean and gap spark plug or install a new spark plug
with proper gap.
4.Prepare unit for operation.
5.Fill fuel tank with proper fuel / oil mixture. See Fuel
and Lubrication Section.
7-6.CARBURETOR ADJUSTMENT
The carb
formance. If further adjustments are necessary, please take
your unit to the nearest Authorized Service Center listed in
the
uretor w
Y
ellow Pages.
as pre-set at the factory for optimum per-
7-7.STORING A CHAIN SAW
CAUTION
Never store a chain saw for longer than 30 days without
wing procedures.
ming the f
or
perf
ing a chain sa
Stor
age maintenance. Unless the storage instructions are fol-
ed, fuel remaining in the carb
w
lo
ing gum-lik
and result in costly repairs.
1.Remove the fuel tank cap slowly to release any pressure in tank.
2.Start the engine and let it run until the unit stops to
remove fuel from carburetor.
3.Allow the engine to cool (approx. 5 minutes).
ollo
w f
e deposits
Carefully dr
or longer than 30 da
uretor will evaporate, leav-
This could lead to difficult star
.
ain the fuel tank.
ys requires stor
ting
-
8 - BAR / CHAIN MAINTENANCE
8-1. GUIDE BAR MAINTENANCE
Frequent lubrication of the guide bar (railed bar which supports and carries the saw chain) sprocket tip is required.
Proper maintenance of the guide bar, as explained in this
section, is essential to keep your saw in good working condition.
SPROCKET TIP LUBRICATION:
CAUTION
The sprocket tip on your new saw has been pre-lubricated
at the factory. Failure to lubricate the guide bar sprocket tip
as explained below will result in poor performance and
seizure, voiding the manufacturer’s warranty.
Lubrication of the sprocket tip is recommended after 10
hours of use or once a week, which ever occurs first.
Always thoroughly clean guide bar sprocket tip before lubrication.
TOOLS FOR LUBRICATION:
The Lube Gun (optional) is recommended for applying
grease to the guide bar sprocket tip. The Lube Gun is
equipped with a needle nose tip which is necessary for the
efficient application of grease to the sprocket tip.
TO LUBRICATE SPROCKET TIP:
WARNING
Wear heavy duty work gloves when handling the bar and
chain.
1.Move the STOP switch down.
NOTE: It is not necessary to remove the saw chain to lubricate the guide bar sprocket tip. Lubrication can be done on
the job.
2.Clean the guide bar sprocket tip.
3.Using the Lube Gun (optional), insert tip of lube gun
into the lubr
appears at outside edge of sprocket tip (Figure 8-1A).
4.Rotate saw chain by hand. Repeat lubrication procedure until the entire sprocket tip has been greased.
ication hole and inject g
8-1A
GUIDE BAR MAINTENANCE:
Most guide bar problems can be prevented merely by keeping the chain saw well maintained.
Insufficient guide bar lubrication and operating the saw with
chain that is TOO TIGHT will contribute to rapid bar wear.
rease until it
To help minimize bar wear, the following guide bar maintenance procedures are recommended.
BAR WEAR - Turn guide bar frequently at regular intervals
or example, after 5 hours of use), to ensure even wear on
(f
top and bottom of bar.
BAR GROOVES - Bar grooves (or rails which support and
carry the chain) should be cleaned if saw has been used
heavily or if saw chain appears dirty. Rails should always be
cleaned every time saw chain is removed.
OIL PASSAGES - Oil passages on the bar should be
cleaned to ensure proper lubrication of the bar and chain
during operation.
NOTE: The condition of the oil passages can be easily
checked. If the passages are clear, the chain will automatically give off a spray of oil within seconds of starting the
w.Your saw is equipped with an automatic oiler system.
sa
8-2. CHAIN MAINTENANCE
CHAIN TENSION:
Check the chain tension frequently and adjust as often as
necessary to keep the chain snug on the bar, but loose
enough to be pulled around by hand.
BREAKING IN A NEW SAW CHAIN:
A new chain and bar will need chain readjustment after as
few as 5 cuts.This is normal during the break-in period, and
the interval between future adjustments will begin to lengthen quickly.
WARNING
Never have more than 3 links removed from a loop of chain.
This could cause damage to the sprocket.
CHAIN LUBRICATION:
Always make sure the automatic oiler system is working
properly. Keep the oil tank filled with Genuine Factory Parts
Chain, Bar and Sprocket Oil.
Adequate lubrication of the bar and chain during cutting
operations is essential to minimize friction with the guide
bar.
Never starve the bar and chain of lubricating oil. Running
the saw dry or with too little oil will decrease cutting efficiency, shorten saw chain life, cause rapid dulling of chain, and
lead to excessive wear of bar from overheating. Too little oil
is evidenced by smoke or bar discoloration.
CHAIN SHARPENING:
Chain sharpening requires special tools to ensure that cutters are sharpened at the correct angle and depth. For the
inexperienced chain saw user, we recommend that the saw
chain be professionally sharpened by the nearest
Authorized Service Center.If you feel comfortable sharpening your own saw chain, special tools are available from the
nearest Authorized Service Center.
1819
8 - BAR / CHAIN MAINTENANCE
8-3.CHAIN REPLACEMENT INFORMATION
Bar LengthDrive Links
18” Bar60 DL
There may be other quality equivalent replacement components for achieving kickback protection.
9 - TROUBLESHOOTING THE ENGINE
PROBLEM
Unit won’t start or starts but will
not run.
Unit starts, but engine has low
power.
Engine hesitates.
No power under load.
PROBABLE CAUSE
Incorrect starting procedures.
Incorrect carburetor mixture
adjustment setting.
Fouled spark plug
Fuel filter plugged.
Incorrect lever position on choke.
Dirty spark arrester screen.
Dirty air filter.
Incorrect carburetor mixture
adjustment setting.
Incorrect carburetor mixture
adjustment setting.
CORRECTIVE ACTION
Follow instructions in the User Manual.
Have carburetor adjusted by an
Authorized Service Center.
Clean / gap or replace plug.
Replace fuel filter.
Move to RUN position.
Replace spar
ve, clean and reinstall filter.
Remo
Have carburetor adjusted by an
Authorized Service Center.
Have carburetor adjusted by an
Authorized Service Center.
k arrester screen.
Runs erratically.
Smokes excessively.
Incorrectly gapped spark plug.
Incorrect carburetor mixture
adjustment setting.
Incorrect fuel mixture.
Clean / gap or replace plug.
Have carburetor adjusted by an
Authorized Service Center.
Use properly mixed fuel (40:1 mixture).
20
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