Black Max BM3716 User manual

ENGINE FAMILY: *HCPS.0384CA
FAMILLE DE MOTEUR : *HCPS.0384CA
FAMILIA DE MOTOR: *HCPS.0384CA
WARNING: To reduce the risk of injury, the user must
read and understand the operator’s manual before using this
product.
ADVERTENCIA: Para reducir el riesgo de lesiones, el
usuario debe leer y comprender el manual del operador antes
de usar este producto.
TABLE OF CONTENTS
General Safety Rules ............................................................2-3
Specific Safety Rules............................................................3-4
Symbols ................................................................................5-6
Glossary of Terms....................................................................7
Features ................................................................................8-9
Assembly ............................................................................9-10
Operation ..........................................................................10-24
Maintenance .....................................................................24-37
Bar and Chain Combinations.................................................37
Troubleshooting................................................................38-39
Parts Ordering/Service............................................. Back Page
ÍNDICE DE CONTENIDO
Reglas de seguridad generales ...........................................2-3
Reglas de seguridad específicas.........................................3-4
Símbolos ..............................................................................5-6
Glosario de términos............................................................... 7
Características .....................................................................8-9
Armado ..............................................................................9-10
Funcionamiento ...............................................................10-24
Mantenimiento .................................................................24-38
Combinaciones de barra y cadena....................................... 38
Corrección de problemas ................................................39-40
Pedidos de piezas/servicio................................ Pág. posterior
SAVE THIS MANUAL FOR
FUTURE REFERENCE
GUARDE ESTE MANUAL
PARA FUTURAS CONSULTAS
NOTICE AVISO
Do not use E15 or E85 fuel in
this product. It is a violation of
federal law and will damage the
unit and void your warranty. Only use unleaded gasoline
containing up to 10% ethanol.
No utilice combustibles E15 o E85 con este producto. Esto
constituye una violación a la ley federal, dañará la unidad y
anulará la garantía. Utilice únicamente gasolina sin plomo
que contiene hasta 10% de etanol.
BM3716/BM3716VNM
16 in. 38cc Chain Saw
Motosierra de 40 cm (16 pulg.), 38 cc
BM3818/BM3818VNM
18 in. 38cc Chain Saw
Motosierra de 45,72 cm (18 pulg.), 38 cc
OPERATOR’S MANUAL
MANUAL DEL OPERADOR
To register your Black Max product, please visit:
www.blackmaxtools.com
Para registrar su producto de Black Max, por favor visita:
www.blackmaxtools.com

Page 2 — English
WARNING:
Read and understand all instructions. Failure
to follow all instructions listed below, may result
in electric shock, fire and/or serious personal
injury.
READ ALL INSTRUCTIONS
Know your tool. Read the operator’s manual
carefully. Learn the saw’s applications and lim-
itations as well as the specific potential hazards
related to this tool.
■Kickback may occur when the nose or tip of
the guide bar touches an object, or when the
wood closes in and pinches the saw chain in
the cut. Tip contact in some cases may cause a
lightning-fast reverse reaction, kicking the guide
bar up and back toward the operator. Pinching
the saw chain along the top of the guide bar
may push the guide bar rapidly back toward 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 the saw. As a
chain saw user, you should take several steps
to keep your cutting jobs free from accident or
injury.
• With a basic understanding of kickback,
you can reduce or eliminate the element
of surprise. Sudden surprise contributes to
accidents.
• Keep a good firm grip on the saw with both
hands when the engine is running. Place your
right hand on the rear handle and your left
hand on the front handle with your thumbs
and fingers encircling the chain saw handles.
A firm grip together with a stiff left arm will
help you maintain control of the saw if kick-
back occurs.
• 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, fence, or any other obstruction that
could be hit while you are operating the saw.
• Cut at high engine speeds. Always cut
with the engine running at full speed. Fully
squeeze the throttle trigger and maintain a
steady cutting speed.
• Do not overreach or cut above chest height.
• Follow the manufacturer’s sharpening and
maintenance instructions for the saw chain.
• Only use replacement bars and chains spec-
ified by the manufacturer or the equivalent.
Do not operate a chain saw with one hand.
Serious injury to the operator, helpers, bystand-
ers, or any combination of these persons may
result from one-handed operation. A chain saw
is intended for two-handed use.
Do not operate a chain saw when you are
fatigued. Fatigue causes carelessness. Never
operate a chain saw when you are tired, upset,
or under the influence of medication, drugs, or
alcohol.
Stay alert - Watch what you are doing and use
common sense when operating a chain saw. A
moment of inattention while operating the chain
saw may result in death or serious personal
injury.
Chain saw work can be strenuous. If you have
a medical condition that may be aggravated or
a disability that may prevent you from safely
operating and controlling the chain saw, check
with your doctor before using the chain saw.
Use safety footwear. Wear snug-fitting cloth-
ing, protective gloves, and eye, hearing, and
head protection devices.
Heavyprotective clothing may increaseoper-
ator fatigue, which could lead to heat stroke.
During weather that is hot and humid, heavy
work should be scheduled for early morning
or late afternoon hours when temperatures are
cooler.
Do not stand on any unstable surface while
using the chain saw, such as ladders, scaffolds,
trees, etc.
Use caution when handling fuel. Move the
chain saw at least 30 feet from the fueling point
before starting the engine.
Do not allow other persons to be near the
chain saw when starting or cutting with the
chain saw. Keep bystanders and animals out
of the work area.
Do not start cutting until you have a clear
work area, secure footing, and a planned retreat
path from the falling tree.
GENERAL SAFETY RULES

Page 3 — English
WARNING:
The warnings, labels, and instructions found
in this section of the operator’s manual are for
your safety. Failure to follow all instructions may
result in serious personal injury.
Do not cut vines and/or small underbrush (a
diameter of less than 3 in.).
Muffler surfaces are very hot during and after
operation of the chain saw; keep all body parts
away from the muffler. Serious burns may occur
if contact is made with the muffler.
■Always hold the chain saw with both hands
when the engine is running. Use a firm grip
with thumbs and fingers encircling the chain
saw handles.
Keep all parts of your body away from the
saw chain when the engine is running.
Always carry the chain saw with the engine
stopped and the brake engaged, the guide bar
and saw chain to the rear, and the muffler away
from your body. When transporting the chain
saw, use the appropriate guide bar scabbard.
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.
■Shut off the engine before setting the chain
saw down. Do not leave the engine running
unattended. As an additional safety precaution,
apply the chain brake prior to setting down the
saw.
■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.
■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.
■Keep the handles dry, clean, and free of oil or
fuel mixture.
Do not start or operate the engine in a con-
fined space, building, near open windows,
or in other unventilated space where dan-
gerous carbon monoxide fumes can collect.
Carbon monoxide, a colorless, odorless,
and extremely dangerous gas, can cause
unconsciousness or death.
■Do not operate a chain saw in a tree unless
you have been specifically trained to do so.
Do not cut from a ladder, rooftop, or other
unstable support; this is extremely dangerous.
All chain saw service, other than the items
listed in the instruction manual and all main-
tenance, should be performed by competent
chain saw service personnel. (For example, if
improper tools are used to remove the flywheel
or if an improper tool is used to hold the flywheel
in order to remove the clutch, structural damage
to the flywheel could occur and subsequently
could cause the flywheel to burst.)
Always have a fire extinguisher available
when using chain saw.
Use only the replacement guide bars and low
kickback chains specified for the saw.
■Do not adapt the powerhead to a bow guide
or use it to power any attachments or devices
not listed for the saw.
■The gas powered saw is classified by
CSA Z6.1-15 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 peri-
ods of operation can cause circulatory problems
in the user’s hands due to vibration.
Save these instructions. Refer to them
frequently and use to instruct other users. If
you loan someone this tool, loan them these
instructions also.
GENERAL SAFETY RULES
SPECIFIC SAFETY RULES

Page 4 — English
■Never let anyone use the chain saw who
has not received adequate instructions in its
proper use. This applies to rentals as well as
privately owned saws.
■Before you start the engine,make sure the
saw chain is not contacting any object.
Wear snug-fitting clothing. Always wear heavy
long pants, boots, and gloves. Do not wear
jewelry, short pants, sandals, or go barefoot.
Do not wear loose fitting clothing, which could
be drawn into the engine or catch the chain
or underbrush. Wear overalls, jeans, or chaps
made of cut-resistant material or ones that
contain cut-resistant inserts. Secure hair so that
it is above shoulder level.
■Wear non-slip safety footwear and heavy-
duty gloves to improve your grip and to protect
your hands.
■Wear eye protection with side shields marked
to comply with ANSI Z87.1, along with hear-
ing and head protection, when operating this
equipment.
Keep bystanders and animals out of the work
area. Do not allow other persons to be nearby
during starting or cutting with the chain saw.
NOTE: The size of the work area depends on the
job being performed as well as the size tree or
workpiece involved. For example, felling a tree
requires a larger work area than making other
cuts (i.e., bucking cuts, etc.).
Keep anti-kickback nose guard properly
mounted on the guide bar to prevent rotational
kickback.
Follow the sharpening and maintenance
instructions for the saw chain.
Never operate a chain saw that is damaged,
improperly adjusted, or is not completely
and securely assembled. Be sure that the saw
chain stops moving when the throttle control
trigger is released. If the saw chain moves at
idle speed, the carburetor may need adjusting.
Refer to Adjusting the Carburetor in the Main-
tenance section of this manual. If the saw chain
still moves at idle speed after adjustment has
been made, contact a qualified service center
for adjustment and discontinue use until the
repair is made.
■This product is intended for infrequent use
by homeowners and other occasional users
for general applications such as clearing, prun-
ing, 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 product having an anti-
vibration feature.
REFUELING (DO NOT SMOKE!)
■To reduce the risk of fire and burn injury,
handle fuel with care. It is highly flammable.
■Mix and store fuel in a container approved for
gasoline.
■Mix fuel outdoors where there are no sparks
or flames.
■Select bare ground, stop the engine, and
allow it to cool before refueling.
■Loosen the fuel cap slowly to release pressure
and to keep fuel from escaping around the cap.
■Tighten the fuel cap securely after refueling.
■Wipe spilled fuel from the unit. Move 30 feet
away from refueling site before starting engine.
Never attempt to burn off spilled fuel under
any circumstances.
KICKBACK
Kickback is a dangerous reaction that can
lead to serious injury. Do not rely only on the
safety devices provided with the saw. As a
chain saw user, you must take special safety
precautions to help keep your cutting jobs free
from accident or injury. See the General Safety
Rules and Operation sections of this manual
for added information on kickback and how to
avoid serious personal injury.
CAUTION: User not to use a replacement saw
chain unless it has been designated as meet-
ing the kickback performance requirements in
ANSI/OPEI B175.1-2012 on that specific power
head, or has been designated as low-kickback
replacement saw chain in accordance with
ANSI/OPEI B175.1-2012
SAVE THESE INSTRUCTIONS
SPECIFIC SAFETY RULES

Page 5 — English
Some of the following symbols may be used on this tool. Please study them and learn their meaning.
Proper interpretation of these symbols will allow you to operate the tool better and safer.
SYMBOL NAME DESIGNATION/EXPLANATION
Safety Alert Precautions that involve your safety.
Read The Operator’s
Manual
To reduce the risk of injury, user must read and
understand operator’s manual before using this
product.
Wear Eye, Hearing, and
Head Protection
Wear eye protection with side shields marked to
comply with ANSI Z87.1 as well as hearing and head
protection when operating this equipment.
Keep Tool Away from
Electrical Lines/Keep
Bystanders Away
DANGER! Risk of electrocution! Keep tool 50 feet away
from electrical lines. Keep all bystanders at least 50
ft. away or twice the height of the largest trees in the
felling area when felling.
Anti-Kickback Nose
Guard
The anti-kickback nose guard on the guide bar helps
prevent kickback.
Operate With Two Hands Hold and operate the saw properly with both hands.
One Handed Do not operate the saw using only one hand.
Bar Nose Contact
Avoid bar nose contact. Tip contact may cause the
guide bar to move suddenly upward and backward,
which may cause serious injury.
The following signal words and meanings are intended to explain the levels of risk associated with
this product.
SYMBOL SIGNAL MEANING
DANGER: Indicates an hazardous situation, which, if not avoided, will result
in death or serious injury.
WARNING: Indicates a hazardous situation, which, if not avoided, could result
in death or serious injury.
CAUTION: Indicates a hazardous situation, that, if not avoided, may result in
minor or moderate injury.
NOTICE:
(Without Safety Alert Symbol) Indicates information considered
important, but not related to a potential injury (e.g. messages re-
lating to property damage).
SYMBOLS

Page 6 — English
Some of the following symbols may be used on this tool. Please study them and learn their meaning.
Proper interpretation of these symbols will allow you to operate the tool better and safer.
SYMBOL NAME DESIGNATION/EXPLANATION
Hot Surface To reduce the risk of injury or damage, avoid contact
with any hot surface.
Kickback DANGER! BEWARE OF KICKBACK.
Wear Gloves Wear non-slip, heavy-duty protective gloves when
handling the chain saw.
Wear Safety Footwear Wear non-slip safety footwear when using this
equipment.
No Smoking No smoking, sparks, or open flame.
Carbon Monoxide
Engines produce carbon monoxide which is an
odorless, deadly poison. Do not operate in an
enclosed area.
Gasoline and Lubricant
Use unleaded gasoline intended for motor vehicle use
with an octane rating of 87 [(R + M)/2] or higher. This
product is powered by a 2-cycle engine and requires
pre-mixing gasoline and 2-cycle lubricant.
SYMBOLS

Page 7 — English
Anti-Kickback Nose Guard
An attachment that may be provided on the end
of the guide bar to prevent the chain at the end of
the guide bar from contacting the wood.
Automatic Oiler System
Lubrication is provided by the automatic oiler
system. The oiler is driven by the sprocket and
adds lubrication only when the chain is moving.
Bucking
The process of cross cutting a felled tree or log
into lengths.
Chain Brake
A device used to stop the saw chain.
Chain Saw Powerhead
A chain saw without the saw chain and guide bar.
Clutch
A mechanism for connecting and disconnecting
a driven member to and from a rotating source of
power.
Drive Sprocket or Sprocket
The toothed part that drives the saw chain.
Felling
The process of cutting down a tree.
Felling Back Cut
The final cut in a tree felling operation made on
the opposite side of the tree from the notching
undercut.
Front Handle
The support handle located at or toward the front
of the chain saw. This handle is for the left hand.
Front Handle Guard
A structural barrier between the front handle of
a chain saw and the guide bar, typically located
close to the hand position on the front handle, and
sometimes employed as an activating lever for a
chain brake.
Guide Bar
A solid railed structure that supports and guides
the saw chain.
Kickback
The backward or upward motion, or both, of the
guide bar occurring when the saw chain near the
nose of the top area of the guide bar contacts any
object such as a log or branch, or when the wood
closes in and pinches the saw chain in the cut.
Kickback (Pinch)
The rapid pushback of the saw which can occur
when the wood closes in and pinches the moving
saw chain in the cut along the top of the guide bar.
Kickback (Rotational)
The rapid upward and backward motion of the
saw which can occur when the moving saw chain
near the upper portion of the tip of the guide bar
contacts an object, such as a log or branch.
Low-Kickback Chain
A low kickback saw chain is a chain that has met
the kickback performance requirements of ANSI/
OPEI B175.1-2012 when tested according to the
provisions specified in ANSI/OPEI B175.1-2012.
Normal Cutting Position
Thosepositionsassumedin performingthebucking
and felling cuts.
Notching Undercut
A notch cut in a tree that directs the tree’s fall.
Rear Handle
The support handle located at or toward the rear
of the saw. It normally contains the throttle. This
handle is for the right hand.
Reduced Kickback Guide Bar
A guide bar which has been demonstrated to
reduce kickback significantly.
Replacement Saw Chain
A chain that complies with the kickback perfor-
mance requirements of ANSI B175.1 when tested
with specific chain saws.
Saw Chain
A loop of chain having cutting teeth that cut the
wood, and that is driven by the sprocket and is
supported by the guide bar.
Springpole
A small tree (sapling) or limb that is bent or trapped
under tension. It may “spring back” rapidly when
cut, causing a dangerous situation.
GLOSSARY OF TERMS

Page 8 — English
STOP
PRODUCT SPECIFICATIONS
Bar length
BM3716 ...................................................16 in.
BM3818 ...................................................18 in.
Chain pitch .................................................3/8 in.
Chain gauge ............................................ .050 in.
Chain type ........................Low Profile Skip Tooth
Fig. 1
PRIMER
BULB
CHAIN BRAKE/ FRONT
HAND GUARD
FRONT HANDLE
CYLINDER
COVER ANTI-KICKBACK
NOSE GUARD
CHOKE KNOB
BAR
MOUNTING NUTS
CLUTCH COVER
GUIDE BAR
REAR
HANDLE
THROTTLE
TRIGGER
STOP
SWITCH
FUEL CAP
STARTER/FAN
HOUSING
STARTER GRIP
AND ROPE
TRIGGER
RELEASE
CHAIN OIL
CAP
LOW KICKBACK
SAW CHAIN
Chain drive links
BM3716 ........................................................56
BM3818 ........................................................62
Drive sprocket ..........................................6-tooth
Engine displacement....................................38cc
Engine idle speed.........3,300 ± 500 r/min. (RPM)
Fuel tank capacity ...................................10.4 oz.
Chain lubricant tank capacity....................7.1 oz.
MUFFLER
FEATURES

Page 9 — English
Do not discard the packing material until you
have carefully inspected and satisfactorily
operated the tool.
If any parts are damaged or missing, please call
1-800-726-5760 for assistance.
PACKING LIST
Chain Saw
Scabbard
Combination Wrench
2-Cycle Engine Lubricant
Operator’s Manual
Case (BM3818)
KNOW YOUR CHAIN SAW
See Figure 1.
The safe use of this product requires an under-
standing of the information on the tool and in
this operator’s manual as well as a knowledge
of the project you are attempting. Before use of
this product, familiarize yourself with all operating
features and safety rules.
ANTI-KICKBACK NOSE GUARD
The anti-kickback nose guard is an attachment
provided on the end of the guide bar to prevent the
chain on the end of the guide bar from contacting
the wood.
CHOKE KNOB
The choke knob opens and closes the choke valve
in the carburetor. Positions available include FULL
CHOKE, HALF CHOKE, and RUN.
COMBINATION WRENCH
A combination wrench tool is provided for use
whenperformingvariousmaintenanceprocedures.
CHAIN BRAKE/FRONT HAND GUARD
The chain brake is designed to quickly stop the
chain from rotating. When the chain brake /front
hand guard is pushed toward the bar, the chain
should stop immediately. The chain brake does
not prevent kickback.
GUIDE BAR
The factory-equipped guide bar has a small radius
tip that offers somewhat lower kickback potential.
LOW KICKBACK SAW CHAIN
The low kickback saw chain helps minimize the
force of a kickback reaction by preventing the
cutters from digging in too deeply at the kickback
zone.
PRIMER BULB
The primer bulb pumps fuel from the fuel tank to
the carburetor.
THROTTLE TRIGGER
The throttle trigger is used for starting the chain
saw, and also for controlling chain rotation.
UNPACKING
This product has been shipped completely
assembled.
Carefully remove the tool and any accessories
from the box. Make sure that all items listed in
the Packing List are included.
WARNING:
Do not use this product if it is not completely
assembled or if any parts appear to be missing
or damaged. Use of a product that is not prop-
erly and completely assembled could result in
serious personal injury.
Inspect the tool carefully to make sure no break-
age or damage occurred during shipping.
FEATURES
ASSEMBLY

Page 10 — English
WARNING:
Do not attempt to modify this tool or create
accessories not recommended for use with
this tool. Any such alteration or modification is
misuse and could result in a hazardous condi-
tion leading to possible serious personal injury.
NOTE: Thechainsawhasbeenfullyfactory tested.
It is normal to find some slight lubricant residue
on the saw. Read and remove all hang tags and
store with the Operator’s Manual.
WARNING:
Always wear eye protection with side shields
marked to comply with ANSI Z87.1, along with
hearing and head protection. Failure to do so
could result in objects being thrown into your
eyes and other possible serious injuries.
WARNING:
Do not use any attachments or accessories not
recommended by the manufacturer of this tool.
The use of attachments or accessories not rec-
ommended can result in serious personal injury.
WARNING:
This product is equipped with a spark arrestor
that has been evaluated by the USDA Forest
Service; however, product users must comply
with Federal, State, and local fire prevention
regulations. Check with appropriate authori-
ties. Contact customer service or a qualified
service center to purchase a replacement spark
arrestor.
DANGER:
Never cut near power lines, electric cords, or
other electric sources. If bar and chain jams
on any electrical cord or line, DO NOT TOUCH
THE BAR OR CHAIN! THEY CAN BECOME
ELECTRICALLY LIVE AND VERY DANGEROUS.
Continue to hold the chain saw by the insulated
rear handle or lay it down and away from you in
a safe manner. Disconnect the electrical service
to the damaged line or cord before attempting
to free the bar and chain from the line or cord.
Contact with the bar, chain, other conductive
parts of the chain saw, or live electric cords or
lines will result in death by electrocution, electric
shock, or serious personal injury.
WARNING:
Do not allow familiarity with tools to make you
careless. Remember that a careless fraction of
a second is sufficient to inflict serious injury.
WARNING:
Muffler surfaces are very hot during and after
operation of the chain saw; keep all body parts
away from the muffler. Serious burns can occur
if contact is made with the muffler.
WARNING:
If any parts are damaged or missing, do not
operate this tool until the parts are replaced.
Use of this product with damaged or missing
parts could result in serious personal injury.
ASSEMBLY
OPERATION

Page 11 — English
WARNING:
Never fell a tree or cut a log or limb that has a
diameter greater than the length of the guide
bar. Only properly trained professionals should
perform these cuts. Performing these types of
cuts can cause an accident and result in death
or serious personal injury.
NOTICE:
Before each use, inspect the entire product
for damaged, missing, or loose parts such as
screws, nuts, bolts, caps, etc. Tighten securely
all fasteners and caps and do not operate this
product until all missing or damaged parts are
replaced. Please contact customer service or a
qualified service center for assistance.
APPLICATIONS
You may usethis tool for the purposeslistedbelow:
Basic limbing, felling, and woodcutting
FUEL AND REFUELING
HANDLING THE FUEL SAFELY
WARNING:
Check for fuel leaks. A leaking fuel cap, tank,
or line is a fire hazard and must be replaced
immediately. If you find any leaks, correct the
problem before using the product. Failure to do
so could result in a fire that could cause serious
personal injury.
Always handle fuel with care; it is highly
flammable.
Always refuel outdoors and do not inhale fuel
vapors.
Do not let gasoline or lubricant come in contact
with skin.
Keep gasoline and lubricant away from the eyes.
If gasoline or lubricant comes in contact with
the eyes, wash them immediately with clean
water. If irritation is still present, see a doctor
immediately.
Clean up spilled fuel immediately.
RefertoRefuelingin the Specific SafetyRulessec-
tionofthis manual for additional safety information.
ETHANOL-BLENDED FUELS
NOTICE:
Do not use E15 or E85 fuel in this product. It
is a violation of federal law and will damage
the unit and void your warranty. Only use
unleaded gasoline containing up to 10%
ethanol.
NOTE: To improve performance when using
ethanol-blended fuels, we recommend the use of
Ethanol Shield 2-cycle lubricant.
MIXING THE FUEL
This product is powered by a 2-cycle engine and
requires pre-mixinggasoline and 2-cycle lubricant.
Pre-mix unleaded gasoline and 2-cycle engine
lubricant in a clean container approved for gaso-
line. DO NOT mix quantities larger than usable in
a 30-day period.
Recommended fuel: This engine is certified to
operate on unleaded gasoline intended for auto-
motive use.
NOTE: We recommend you use Ethanol Shield
2-cycle lubricant or an equivalent high-quality
synthetic 2-cycle lubricant in this product. Mix at
2.6 oz. per gallon (US).
Donotuse automotive lubricantor2-cycleoutboard
lubricant.
HIGH QUALITY 2-CYCLE ENGINE LUBRICANT (50:1)
GASOLINE LUBRICANT
1 Gallon (US) 2.6 oz.
1 Liter 20 cc (20 ml)
FILLING THE FUEL TANK
See Figure 2.
WARNING:
Gasoline and its vapors are highly flammable
and explosive. To prevent serious personal
injury and property damage, handle it with care.
Keep away from ignition sources and open
flames, handle outdoors only, do not smoke,
and wipe up spills immediately.
Clean the surface around the fuel cap to prevent
contamination.
Loosen the fuel cap slowly.
OPERATION

Page 12 — English
INCREASE
Carefully pour the fuel mixture into the tank.
Avoid spillage.
Prior to replacing the fuel cap, clean and inspect
the o-ring.
Immediately replace the fuel cap and hand
tighten. Wipe up any fuel spillage.
NOTE: It is normal for the engine to emit smoke
during and after the first use.
WARNING:
Always shut off engine before fueling. Never
remove fuel cap or add fuel to a machine with
a running or hot engine. Make sure unit is sit-
ting on a flat, level surface and only add fuel
outdoors. If the engine is hot, allow to cool for
at least five minutes before adding fuel. Imme-
diately replace fuel cap after fueling and tighten
securely. Move at least 30 ft. from refueling site
before starting the engine. Do not smoke and
stay away from open flames and sparks. Failure
to follow these instructions could result in a fire
and cause serious personal injury.
BAR AND CHAIN LUBRICATION
See Figure 3.
The bar and chain require continuous lubrication.
Lubrication is provided by the automatic oiler
system when the oil tank is kept filled. Lack of
lubricant will quickly ruin the bar and chain. Too
little lubricant will cause overheating shown by
smoke coming from the chain and/or discolor-
ation of the bar. Lubrication can be increased or
decreased by turning (up to 1/4 turn maximum)
the adjustment screw located on the bottom of
the crankcase with the screwdriver end of the
included combination wrench.
WARNING:
NEVER adjust the automatic oiler system when
the engine is running. Failure to do so could
cause serious personal injury.
ADDING BAR AND CHAIN LUBRICANT
See Figure 3.
Use a bar and chain lubricant designed for lubri-
cating chain saw chains. They are formulated to
extend bar and chain life by protecting against
wear and reducing friction and heat. Chain saw
Fig. 2
Fig. 3
should use approximately one tank of lubricant
per tank of fuel.
NOTE: Do not use dirty, used, or otherwise con-
taminated lubricants. Damage will occur to the oil
pump, bar, or chain.
Carefully pour the bar and chain lubricant into
the oil tank.
Fill the oil tank every time you fuel the engine.
ADJUSTMENT
SCREW
SCREWDRIVER
DECREASE
OPERATION

Page 13 — English
PRIMER BULB
10X
OPERATING THE CHAIN BRAKE
See Figures 4 - 5.
Check the operating condition of the chain brake
prior to each use.
Using the back of your left hand, engage the
chain brake by pushing the chain brake lever/
hand guard toward the bar while the chain is
rotating rapidly.
Reset the chain brake back into the RUN posi-
tion by grasping the top of the chain brake lever/
hand guard and pulling toward the front handle
until you hear a click.
WARNING:
If the chain brake does not stop the chain imme-
diately, or if the chain brake will not stay in the
run position without assistance, take the saw to
a qualified service center for repair prior to use.
NOTICE:
Before each use, check to make sure that
the chain is properly tensioned. A cold chain
is correctly tensioned when there is no slack
on the underside of the guide bar, the chain
is snug, and it can be turned by hand without
binding. During normal saw operation, the tem-
perature of the chain increases. The drive links
of a correctly tensioned warm chain will hang
approximately .050 in. out of the bar groove.
See the Adjusting the Chain Tension instruc-
tions in the Maintenance section of this manual
to properly adjust the chain tension.
STARTING THE ENGINE
See Figures 6 - 9.
The starting method differs depending on whether
the engine is cold or warm.
WARNING:
Keep your body to the left of the chain line.
Never straddle the saw or chain, or lean over
past the chain line. Improper operation of the
chain saw could result in serious personal injury.
Fig. 6
Fig. 7
Fig. 4
Fig. 5
RUN
POSITION
BRAKE
POSITION
RUN
POSITION
OPERATION

Page 14 — English
STARTER GRIP
AND ROPE
FULL CHOKE
POSITION
Fig. 8
Fig. 9
Place the chain saw on level ground and ensure
that no objects or obstructions are in the imme-
diate vicinity that could come in contact with the
bar and chain. To prevent rapid dulling of the
chain, do not allow the bar and chain to contact
dirt on the ground.
Hold the front handle firmly with your left hand
and put your right foot onto the base of the rear
handle.
To start a cold engine:
Make sure the chain brake is in the run position
by pulling back on the lever/hand guard.
Pull choke knob all the way out to FULL CHOKE
( ) position.
Fully press and release the primer bulb 10 times.
Pull the starter grip and rope until the engine
attempts to start, but no more than 5 times.
Push the choke knob in to the RUN ( )position.
Pull starter grip and rope until engine runs.
NOTICE:
Failure to release partial throttle when chain
brake lever is in the brake position will result in
serious damage to the unit. Never squeeze and
hold the throttle trigger while the chain brake is
in the brake position.
To start a warm engine:
Make sure the chain brake is in the run position
by pulling back on the lever/hand guard.
Pull starter grip and rope until engine runs.
OPERATION

Page 15 — English
STOP
STOP
STOPPING THE ENGINE
See Figures 10 - 11.
Releasethe throttletriggerandletthe engine return
to idle. To stop the engine, fully press the stop
switch. Do not put the chain saw on the ground
when the chain is still moving. For additional safety,
set the chain brake when the saw is not in use.
In the event that the stop switch will not stop the
saw, pull the choke knob out to the fully extended
position (FULL CHOKE/ ) and engage chain
brake to stop the engine. If the stop switch will
not stop the saw when pressed, have the stop
switch repaired before using the chain saw again
to prevent unsafe conditions or serious injury.
NOTE: When you are finished using the saw,
always relieve tank pressure by loosening, then
retightening, the chain oil and fuel mix caps. Allow
the engine to cool before storing.
ADJUSTING IDLE SPEED
See Figure 12.
WARNING:
The chain will move around the guide bar when
adjusting the idle speed. Wear all protective
clothing and keep all bystanders, children, and
pets at least 50 ft. away. Make adjustments
with the unit supported on a stable surface so
that the chain/guide bar does not contact the
ground or any object. Keep all parts of your
body away from the chain/guide bar and muf-
fler. Failure to follow these instructions could
result in serious personal injury.
If the engine starts, runs, and accelerates,
but will not idle, turn the idle speed screw “T”
clockwise to increase idle speed.
If the chain turns at idle, turn the idle speed
screw “T” counterclockwise to reduce the
idle RPM and stop the chain movement. If the
saw chain still moves at idle speed, contact
a qualified service center for adjustment and
discontinue use until the repair is made.
BRAKE
POSITION
Fig. 11
Fig. 10
STOP SWITCH
Fig. 12
IDLE SPEED
SCREW “T”
STOP
OPERATION

Page 16 — English
WARNING:
THE SAW CHAIN SHOULD NEVER TURN AT
IDLE. Turn the idle speed screw “T” counter-
clockwise to reduce the idle RPM and stop the
chain, or contact a qualified service center for
adjustment and discontinue use until the repair
is made. Serious personal injury may result from
the saw chain turning at idle.
PULL AND PUSH
See Figure 13.
The reaction force of the saw is always opposite to
thedirectionthe chain is moving. Thus,theoperator
must be ready to control the PULL when cutting
on the bottom edge of the bar and the PUSH when
cutting along the top edge.
NOTE: Thechainsawhasbeenfullyfactory tested.
It is normal to find some slight lubricant residue
on the saw.
WARNING:
KICKBACK occurs when the moving chain
contacts an object at the upper portion of the
tip of the guide bar or when the wood closes in
and pinches the saw chain in the cut. Contact
at the upper portion of the tip of the guide bar
can cause the chain to dig into the object and
stop the chain for an instant. The result is a
lightning-fast reverse reaction which kicks the
guide bar up and back toward the operator. If
the saw chain is pinched along the top of the
guide bar, the guide bar can be driven rapidly
back toward the operator. Either of these reac-
tions can cause loss of saw control, which can
result in serious injury.
Do not rely exclusively upon the safety devices
built into the saw. As a chain saw user, you
should take steps to keep your cutting jobs
free from accident or injury. See General Safety
Rules for more details.
PULL
PUSH
Fig. 13
OPERATION

Page 17 — English
KICKBACK PRECAUTIONS
See Figures 14 - 15.
Rotationalkickback occurs when the moving chain
contacts an object at the Kickback Danger Zone of
the guide bar. The result is a lightning-fast reverse
reaction, which kicks the guide bar up and back
towards the operator. This reaction can cause loss
of control, which can result in serious injury.
PREPARING FOR CUTTING
PROPER GRIP ON HANDLES
See Figure 16.
See General Safety Rules for appropriate safety
equipment.
Wear non-slip gloves for maximum grip and
protection.
Hold the saw firmly with both hands. Always
keep your left hand on the front handle and your
right hand on the rear handle so that your body
is to the left of the chain line.
WARNING:
Never use a left-handed (cross-handed) grip or
any stance that would place your body or arm
across the chain line. Improper operation of the
chain saw could result in serious personal injury.
WARNING:
DO NOT operate the throttle trigger with your
left hand and hold the front handle with your
right hand. Never allow any part of your body
to be in the chain line while operating a saw.
Improper operation of the chain saw could
result in serious personal injury.
CHAIN LINE
ROTATIONAL
KICKBACK
Fig. 15
KICKBACK
DANGER ZONE
Fig. 14
PROPER GRIP
Fig. 16
IMPROPER GRIP
PROPER HAND
GRIP POSITION
OPERATION

Page 18 — English
STRAIGHT
ARM
CHAIN LINE
THUMB ON
UNDERSIDE OF
HANDLE BAR
Fig. 17
Fig. 18
Maintain a proper grip on the saw whenever the
engine is running. The fingers should encircle
the handle and the thumb is wrapped under the
handlebar. This grip is least likely to be broken
by a kickback or other sudden reaction of the
saw. Any grip in which the thumb and fingers
are on the same side of the handle is dangerous
because a slight kick of the saw can cause loss
of control.
PROPER CUTTING STANCE
See Figure 17.
WARNING:
Always use the proper cutting stance described
in this section. Never kneel when using the
chain saw, except when felling a tree as illus-
trated in Figure 22. Kneeling could result in
loss of stability and control of the chain saw,
resulting in serious personal injury.
Balance your weight with both feet on solid
ground.
Keep left arm with elbow locked in a “straight
arm” position to withstand any kickback force.
Keep your body to the left of the chain line.
Keep your thumb on underside of handlebar.
WORK AREA PRECAUTIONS
See Figure 18.
Cut only wood or materials made from wood;
no sheet metal, no plastics, no masonry, no
non-wood building materials.
Never allow children to operate the saw. Allow
no person to use this chain saw who has not
read this operator’s manual or received ade-
quate instructions for the safe and proper use
of this chain saw.
Keep everyone – helpers, bystanders, children,
and animals, a safe distance from the cutting
area. During felling operations, the safe dis-
tance should be a least twice the height of the
largest trees in the felling area. During bucking
operations, keep a minimum distance of 15 feet
between workers.
Always cut with both feet on solid ground to
prevent being pulled off balance.
Do not cut above chest height as a saw held
higher is difficult to control against kickback
forces.
Do not fell trees near electrical wires or build-
ings. Leave this operation for professionals.
Cut only when visibility and light are adequate
for you to see clearly.
BASIC OPERATING/CUTTING
PROCEDURES
Practicecuttingafewsmall logs using the following
technique to get the “feel” of using the saw before
you begin a major sawing operation.
Take the proper stance in front of the wood with
the saw idling.
Accelerate the engine to full throttle just before
entering the cut by squeezing the throttle trigger.
Begin cutting with the saw against the log.
OPERATION

Page 19 — English
Keep the engine at full throttle the entire time
you are cutting.
Allow the chain to cut for you; exert only light
downward pressure. Forcing the cut could result
in damage to the bar, chain, or engine.
Release the throttle trigger as soon as the cut is
completed allowing the engine to idle. Running
the saw at full throttle without a cutting load can
result in unnecessary wear to the chain, bar, and
engine.
Do not put pressure on the saw at the end of
the cut.
FELLING TREES
HAZARDOUS CONDITIONS
See Figures 19 - 22.
WARNING:
Do not fell trees during periods of high wind or
heavy precipitation. Wait until the hazardous
weather has ended.
WARNING:
Closely check for broken or dead branches,
which could fall while cutting and do not cut
near buildings or electrical wires if you do not
know the direction of tree fall. Do not cut at
night or during bad weather conditions, such as
rain, snow, or strong winds, which can reduce
visibility and control of the chain saw. If the tree
you are felling makes contact with any utility
line, you should discontinue use of the chain
saw and immediately notify the utility company.
Failure to follow these instructions could result
in death or serious personal injury.
When felling a tree, it is very important that you
closely follow these warnings and instructions to
prevent possible death or serious personal injury.
■Do not cut down trees having an extreme lean
or large trees with rotten limbs, loose bark,
or hollow trunks. Have these trees pushed or
dragged down with heavy equipment, then cut
them up.
■Do not cut trees near electrical wires or
buildings.
Fig. 19
Fig. 20
45°
45°
PLANNED LINE
OF FALL
RETREAT PATH
RETREAT PATH
■Check the tree for damaged or dead branches
that could fall and hit you during felling.
■Periodically glance at the top of the tree during
the backcut to assure the tree is going to fall in
the desired direction.
If the tree starts to fall in the wrong direction,
or if the saw gets caught or hung up during the
fall, leave the saw and save yourself!
 Felling a tree – When bucking and felling oper-
ations are being performed by two or more
persons, at the same time, the felling operation
OPERATION
NOTCH - APPROX.
1/3 DIAMETER OF
TRUNK
BACK CUT
2 in.
HINGE
2 IN. (50 MM) OR 1/10 DIA

Page 20 — English
On large diameter trees, stop the back cut
before it is deep enough for the tree to either
fall or settle back on the stump. Then insert
soft wooden or plastic wedges into the cut so
they do not touch the chain. The wedges can
be driven in, little by little, to help jack the tree
over. See Figure 22.
NOTE: When bucking or felling with a wedge, it
may be necessary to remove the anti-kickback
nose guard to allow the bar to be drawn through
the cut. After the cut is complete, the tip should
be reinstalled immediately.
 As tree starts to fall, stop the chain saw and put
it down immediately. Retreat along the cleared
path, but watch the action in case something
falls your way. Be alert for overhead limbs or
branches that may fall and watch your footing.
WARNING:
Never cut through to the notch when making a
backcut. The hinge controls the fall of the tree,
this is the section of wood between the notch
and backcut.
should be separated from the bucking operation
by a distance of at least twice the height of the
tree being felled. Trees should not be felled in a
manner that would endanger any person, strike
any utility line or cause any property damage. If
the tree does make contact with any utility line, the
utility company should be notified immediately.
Before any cuts are started, pick your escape
route (or routes in case the intended route is
blocked); clear the immediate area around the
tree and make sure there are no obstructions in
your planned path of retreat. Clear paths of safe
retreat should extend back and diagonally (45°)
to the rear of the planned line of fall. When the
tree begins to fall, you should retreat away from
the direction of fall along a retreat path and at
least 20 feet away from the trunk in case it kicks
back over the stump. See Figure 19.
Before felling is started, consider the force and
direction of the wind, the lean and balance of
the tree, and the location of large limbs. These
things influence the direction in which the tree
will fall. Do not try to fell a tree along a line
different from its natural line of fall.
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.
Remove dirt, stones, loose bark, nails, staples,
and wire from the tree where felling cuts are to
be made.
Notched Undercut. Cut a notch about 1/3 the
diameter of the tree as shown in figure 20. Make
the cuts of the notch so they intersect at a right
angle to the line of fall. This notch should be
cleaned out to leave a straight line. To keep the
weight of the wood off the saw, always make
the lower cut of the notch before the upper cut.
See Figure 20.
Felling Backcut. The backcut is always made
level and horizontal, and at a minimum of 2 in.
above the horizontal cut of the notch. See Figures
20 - 21.
Never cut through to the notch. Always leave a
band of wood between the notch and backcut
(approximately 2 in. or 1/10 the diameter of the
tree). This is called “hinge” or “hingewood.” It
controls the fall of the tree and prevents slipping
or twisting or shoot-back of the tree off the
stump. See Figures 20 - 21.
WEDGE
Fig. 21
OPERATION
BACK CUT
HINGE
NOTCH
Fig. 22