GreenWorks 2000902 User manual

40V CORDLESS CHAINSAW
2000902
Read all safety rules and instructions carefully before operating this tool.
Owner’s Manual
TOLL-FREE HELPLINE: 1-888-90WORKS (888.909.6757)
www.GreenWorksTools.com

2
CONTENTS
Contents .............................................................................................................................. 2
Product specications.......................................................................................................... 2
General safety rules .........................................................................................................3-5
Symbols ............................................................................................................................6-7
Know your blower ................................................................................................................ 8
Assembly instruction....................................................................................................... 9 -11
Operation............................................................................................................. ..........12-14
Maintenance............................................................................................................................15
Troubleshooting.......................................................................................................................16
Warranty..................................................................................................................................17
Exploded View ................................................................................................................... 18
Part List ............................................................................................................................. 19
PRODUCT SPECIFICATIONS
40V BRUCHLESS CHAINSAW
Bar length ......................................................................................................14 in. (356 mm)
Chain pitch.................................................................................................... 3/8 in. (9.5 mm)
Chain gauge................................................................................................. 0.05 in. (1.27 mm)
Chain type................................................................................................................. 91PJ052X
Guide bar type.. ....................................................................................................140SDEA041
Chain oil tank capacity.. ....................................................................................1.8 oz (50 ml)
Unit weight (without 4A battery).. .................................................................... 3.3 lbs. (1.5 kg)

3
GENERAL SAFETY RULES
WARNING
Read and understand all instructions before using this product. Failure to follow all
instructions listed below may result in electric shock, re, and/or serious personal injury.
• Do not start cutting until you have a clear work area, secure footing, and a planned
retreat path from the falling tree. Cluttered areas invite accidents.
• Keep all children, bystanders, visitors, and animals out of the work area while
starting or cutting with the chain saw.
• Do not operate chain saw in explosive atmospheres, such as in the presence of
ammable liquids, gases, or dust. Power tools create sparks which may ignite the
dust or fumes.
• Wear snug tting clothing. Always wear heavy, long pants, overalls, jeans or chaps
made of cut resistant material or ones that contain cut resistant inserts. Wear non-
slip safety footwear. Wear non-slip heavy duty gloves to improve your grip and to
protect your hands. Do not wear jewelry, short pants, sandals, or go barefoot. Do
not wear loose tting clothing, which could be drawn into the motor or catch the
chain or underbrush. Secure hair so it is above shoulder level.
• Heavy protective clothing may increase operator 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.
• Wear eye protection which is marked to comply with ANSI Z87.1 as well as hearing
and head protection when operating this equipment.
• Always be aware of what you are doing when using the chain saw. Use common
sense. Do not operate the chain saw when you are tired, ill, or under the inuence
of alcohol, drugs, or medication.
• Do not expose the chain saw to rain.
• Do not use the chain saw in damp or wet locations.
• Stay alert and pay attention to what you are doing. Use common sense when using
this unit.
• Keep all parts of your body away from the saw chain when the unit is running.
• Always carry the chain saw by the front handle with the battery removed and the
guide bar and saw chain positioned to the rear.
• Never let anyone use your chain saw who has not received adequate instructions
in its proper use.
• Before you start the unit, make sure the saw chain is not contacting any object.
• Stop the chain saw before setting it down.
• To avoid accidental starting, never carry the unit with your nger on the trigger
switch.
• Maintain the unit with care. Keep the cutting edge sharp and clean for best
performance and to reduce the risk of injury. Follow instructions for lubricating and
changing accessories.
• Keep handles dry, clean, and free of oil and grease.

4
• Do not dispose of batteries in a re, the cell may explode, check with local codes
for possible special disposal instruction.
• Do not open or mutilate the batteries; released electrolyte is corrosive and may
cause damage to the eyes or skin, and may be toxic if swallowed.
• Exercise care in handling battery in order not to short the battery with conducting
material such as rings, bracelets and keys. The battery or conductor may overheat
and cause burns.
• Do not operate a chain saw with one hand. Use a rm grip with thumbs and
ngers encircling the chain saw handles. Serious injury to the operator, helpers,
bystanders, or any combination of these persons may result from one-handed
operation. A chain saw is intended for two handed use.
• Avoid body contact with grounded surfaces such as metal pipes and wire fences.
There is an increased risk of electric shock if your body is grounded.
• Do not operate a chain saw that is damaged, improperly adjusted, or not
completely and securely assembled. The chain should slow to a stop when the
trigger switch is released. If the chain continues to turn after the trigger switch has
been released, have the unit serviced by an authorized service center.
• Check for damaged parts. Check for alignment of moving parts, binding of moving
parts, breakage of parts, mounting, and any other conditions that may affect its
operation. A guard or other part that is damaged should be properly repaired or
replaced by an authorized service dealer unless otherwise indicated elsewhere in
this manual.
• All chain saw service, other than the items listed in the operation and maintenance
sections, should be performed by your authorized service center.
• Always maintain a proper stance.
• Do not use chain saw if switch does not turn it on and off. Have defective switch
replaced by authorized service center.
• Remove the battery when not in use, before servicing, and when making
adjustments and changing attachments, such as saw chain and bar.
• Do not cut vines and/or small underbrush.
• Do not operate a chain saw in a tree, on a ladder, or scaffold; this is extremely
dangerous.
• Use extreme caution when cutting small size brush and saplings because the
small 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 spring back so that you will
not be struck when the tension in the wood bers is released.
• Do not force the chain saw. The job can be performed better and safer at the rate
for which it was intended.
• Always use the right product for your application. The chain saw should be used
for cutting wood only. Never use the chain saw to cut plastic, masonry or non-wood
building materials.
GENERAL SAFETY RULES

5
GENERAL SAFETY RULES
• Use only Yardworks 40 V batteries.
• Do not use the chain saw for purposes not intended.
• Store chain saw when not in use. Chain saw should be stored in a dry and high or
locked area out of the reach of children.
• Save these instructions. Refer to them frequently and use them to instruct others
who may use this tool. If you loan someone this tool, loan them these instructions
also.
• Always use two hands when operating the chain saw.
• Contact of the guide-bar tip with any object should be avoided.
• Tip contact may cause the guide bar to move suddenly upward and backward,
which may cause serious injury.
WARNING
When using an cordless chain saw, basic safety precaution should be always followed
to reduce the risk of re, electric shock, and injury to persons, including the following:
WARNING
Some dust created by power sanding, sawing, grinding, drilling, and other construction
activities contain chemicals known to cause cancer, birth defects or other reproductive
harm. Some examples of these chemicals are:
1. Lead from lead-based paints.
2. Crystalline silica from bricks and cement and other masonry products, and
3. Arsenic and chromium from chemically-treated lumber.
Your risk from these exposures varies, depending on how often you do this type of work.
To reduce your exposure to these chemicals, work in a wellventilated area, and work
with approved safety equipment, such as those dust masks that are specially designed
to lter out microscopic particles.

6
GENERAL SAFETY RULES
WARNING
Kickback may occur 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 reactions 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 several steps to keep your cutting jobs free from
accident or injury.
CHILD SAFETY
Tragic accidents can occur if the operator is not aware of the presence of children.
• Keep children out of the working area and under the watchful care of a
responsible adult.
• Do not allow children under the age of 14 to operate this blower. Children
who are 14 years of age and older must read and understand the operating
instructions and safety rules in this manual and must be trained and supervised
by a parent.
• Stay alert, and turn the blower off if a child or any other person enters the
working area.
• Use extreme care when approaching blind corners, doorways, shrubs, trees, or
other objects that may obscure your view of a child who may run into the path of
the blower.

7
GENERAL SAFETY RULES
W A R N I N G (PROPOSITION 65)
Some dust created by power sanding, sawing, grinding, drilling, and other construction
activities contains chemicals known to cause cancer, birth defects or other reproductive
harm. Some examples of these chemicals are:
• Lead from lead-based paints
• Crystalline silica from bricks and cement and other masonry products, and
• Arsenic and chromium from chemically treated lumber.
Your risk of exposure to these chemicals varies depending on how often you do this
type of work. To reduce your exposure to these chemicals, work inven a well-ventilated
area, and work with approved safety equipment, such as dust masks that are specially
designed to lter out microscopic particles.
The following precautions should be followed to minimize kickback:
• Always grip the saw rmly with both hands. Place your right hand on the rear
handle and your left hand on the front handle with your thumbs and ngers
encircling the chain saw handles. A rm grip together with a stiff left arm will help
you maintain control of the saw if kickback 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.
• Always cut with the unit running. Fully squeeze the trigger switch and maintain
cutting speed.
• Use only the replacement guide bars and low kickback chains specied by the
manufacturer for the saw.

8
GENERAL SAFETY RULES
• With a basic understanding of kickback, you can reduce or eliminate the element of
surprise. Sudden surprise contributes to accidents.
• Keep proper footing and balance at all times.
• Do not cut above shoulder height or overreach when cutting.
• Follow the sharpening and maintenance instructions for the saw chain.
• Push and Pull - This reaction force is always opposite to the direction the chain is
moving where wood contact is made. Thus, the operator must be ready to control
the PULL when cutting on the bottom edge of the bar, and PUSH when cutting
along the top edge.
UNDERSTANDING YOUR CHAIN SAW SAFETY DEVICES
LOW KICKBACK SAW CHAIN
The rakers (depth gauges) ahead of each cutter can minimize the force of a kickback
reaction by preventing the cutters from digging in too deeply at the kickback zone. Only
use replacement chain that is equivalent to original chain or has been certied as low
kickback chain per ANSI B175.1. Low kickback/skip tooth saw chain is a chain that has
met the kickback performance requirements of ANSI B175.1 - 1991. (American National
Standard for Power Tools - Gasoline-Powered Chain Saws-Safety Requirements) when
tested on the representative sample of chain saws below 3.8 c.i.d. specied in ANSI
B175.1 - 1991. As saw chains are sharpened during their useful life, they lose some of
the low kickback qualities and extra caution should be used.

9
Some of the following symbols may be used on this product. Please study them and learn
their meaning. Proper interpretation of these symbols will allow you to operate the product
SYMBOLS
SYMBOLS DESIGNATION EXPLANATION
VVolts Voltage
AAmperes Current
Hz Hertz Frequency (cycles per second)
WWatts Power
hrs Hours Time
n
o
No Load Speed Rational speed, at no load
Class II Construction Double-insulated construction
/ min Per Minute Revolutions, strokes, surface speed, orbits etc., per minute.
Lithium-Ion Battery
Recycling
Designates that this tool is in compliance with
Lithium-Ion battery recycling program requirements.
Safety Alert Symbol 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.
Eye and Head
Protection
Wear eye and head protection when operating this
equipment.
Gloves Wear non-slip, heavy-duty protective gloves when
handling the chain saw and the blade.
Safety Footwear Wear non-slip safety footwear when using this
equipment.
Kickback DANGER! Beware of 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.
Keep Bystanders
Away Keep all bystanders at least 50 ft. (15 m) away.
Wear Ear protection Wear ear protection when operating this equipment.

The following signal words and meanings are intended to explain the levels of risk
associated with this product.
SERVICE
Servicing requires extreme care and knowledge and should be performed only by a
qualied service technician. For service we suggest you return the product to your
nearest AUTHORIZED SERVICE CENTER for repair. When servicing, use only
identical replacement parts.
DANGER Indicates an imminently hazardous situation, which, if not
avoided, will result in death or serious injury.
WARNING Indicates a potentially hazardous situation, which, if not avoided,
could result in death or serious injury.
CAUTION Indicates a potentially hazardous situation, which, if not avoided,
may result in minor or moderate injury.
CAUTION (Without Safety Alert Symbol) Indicates a situation that may
result in property damage.
SYMBOLS
SAVE THESE INSTRUCTIONS
10
SYMBOL SIGNAL MEANING
WARNING
• Not use for wet materials.
• Disconnect before cleaning or changing accessories.
WARNING
To avoid serious personal injury, do not attempt to use this product until you have read
this Owner’s Manual thoroughly and understand it completely. If you do not understand
the warnings and instructions in this Owner’s Manual, do not use this product. Call the
Toll-free Helpline (1-888-909-6757) for assistance.
The operation of any power tool can result in foreign objects being thrown into
your eyes, which can result in severe eye damage. Before operating a power tool,
always wear safety goggles, safety glasses with side shields, or a full face shield
when needed. We recommend a Wide Vision Safety Mask for use over eyeglasses or
standard safety glasses with side shields. Always use eye protection that is marked to
comply with ANSI Z87.1.

11
KNOW YOUR CHAIN SAW
KNOW YOUR CHAIN SAW (See Figure 1.)
The safe use of this product requires an understanding of the information on the
product 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
Fig. 1
Wrench
Safty lock
Trigger switch
Rear handle
Front handle
Oil cap
Low kickback chain
Guard
Bar
Sprocket cover
tighten nuts
Chain tensioner
screw
Sprocket cover
tighten nuts
Sprocket cover
Scabard

12
ASSEMBLY INSTRUCTION
WARNING
Before beginning to operate this product, make sure all parts are present. Compare
parts with package contents list. If any part is missing or damaged, do not attempt to
operate the product.
UNPACKING
This product has been shipped completely assembled.
• Carefully remove the product and any accessories from the box. Make sure that all
items listed in the package contents section are included.
• Inspect the product carefully to make sure no breakage or damage occurred during
shipping.
• Do not discard the packing material until you have carefully inspected and
satisfactorily operated the product.
• If any parts are damaged or missing, please call 1.866.523.5218 for assistance.
If any parts are damaged or missing, do not operate this product until the parts are
replaced. Using a product with damaged or missing parts could result in serious
personal injury.
WARNING
Do not attempt to modify this product or create accessories not recommended for use
with this product. Any such alteration or modication is misuse and could result in a
hazardous condition leading to possible serious personal injury.

13
ASSEMBLY INSTRUCTION
ADDING BAR AND CHAIN LUBRICANT
Use a bar and chain lubricant with this product. It is designed for chains and chain oilers,
and is formulated to perform over a wide temperature range with no dilution required.
• Remove oil cap.
• Carefully pour the bar and chain oil into the tank.
• Wipe off excess oil and replace cap.
• Check and ll the oil tank when quick view oil indicator is below the MIN. line.
• Repeat as needed.
Fig. 2
NOTE: Chain saw comes from the factory with no bar and chain oil added. The level
should also be checked after every 20 minutes of use and relled as needed.
NOTE:
• Do not use dirty, used or otherwise contaminated oils. Damage may occur to the
bar or chain.
• It is normal for oil to seep from the saw when not in use. To prevent seepage,
empty the oil tank after each use then run for one minute. When storing the unit for
a long period of time (three months or longer) be sure the chain is lightly lubricated;
this will prevent rust on the chain and bar sprocket.
To preserve natural resources, please recycle or dispose of oil properly. Consult your
local waste authority for information regarding available recycling and/disposal options.
IMPORTANT

ASSEMBLY INSTRUCTION
14
WARNING
BATTERY
TO INSTALL THE BATTERY:
1. Align the battery with the battery opening.
2. Insert the battery into the battery opening until the battery release button locks into
place.
3. Push down on the battery until it locks into place. You should hear a “click” once it is
installed.
TO REMOVE THE BATTERY:
1. Press the battery release button on the chain saw. This will cause the battery to raise
out of the tool slightly.
2. Grasp the chain saw rmly and pull the battery out of the handle.
Follow these instructions in order to avoid injury and to reduce the risk of electric shock
or re:
• Replace the battery or the charger immediately if the battery case or charger acord is
damaged.
• Read, understand, and follow the instructions contained in the charger manual.
The battery may not be charged when it is purchased. Beforeusing the chain saw
for the rst time, place the battery in the battery charger and charge it fully. Be sure
to read all safety precautions and follow the instructions in the battery and charger
manuals. When storing the chain saw for a prolonged period of time, remove the
battery. When the chain saw is going to be used again, charge the battery for at least
a full charging period. The battery has no memory effect.
IMPORTANT

15
OPERATION
STARTING AND STOPPING THE CHAIN SAW
A. To start the chain saw:
• Make sure chain tension is at desired setting. Refer to adjusting the chain tension in
the Care and Maintenance section of this manual.
• Make sure the chain cover lock knob is tight to the chain cover.
• Make sure no objects or obstructions are in the immediate vicinity which could come
in contact with the bar and chain.
• Fit the battery into the chain saw.
• Press in the safety lock. This makes the trigger switch operational.
• Press and hold the trigger switch and keep it pressed for continued operation.
B. To stop the chain saw:
• Release the trigger switch.
Upon release of the trigger switch, the safety lock will be automatically reset to the lock
position.
Safety lock
Trigger switch
NOTE: It is normal for the chain to coast to a stop once the trigger switch is released.
stop once the trigger switch is released.

16
OPERATION
WARNING
PREPARING FOR CUTTING
A. Proper grip on handles
See General Safety Rules for appropriate safety equipment.
• Wear non-slip gloves for maximum grip and protection.
• Hold the saw rmly 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.
• Maintain a proper grip on the saw whenever the motor is running. The ngers
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 ngers are on the same side of the handle is
dangerous because a slight kick of the saw can cause loss of control.
Proper hand grip
position
Chain line
Proper grip
Improper grip
DO NOT operate the trigger switch 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. Never use a left-handed (cross-handed) grip or any stance that would place your
body or arm across the chain line.

17
OPERATION
PROPER CUTTING STANCE
• 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 front handle.
BASIC OPERATING/CUTTING PROCEDURES
Practice cutting a few small 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.
• Press the safety lock and squeeze the trigger switch then release the safety lock and
let the chain accelerate to full speed before entering the cut.
• Begin cutting with the saw against the log.
• Keep the unit running the entire time you are cutting, maintain a steady speed.
• Allow the chain to cut for you; exert only light downward pressure. Forcing the cut
could result in damage to the bar, chain, or motor.
• Release the trigger switch as soon as the cut is completed, allowing the chain to stop.
If you run the saw without a cutting load, unnecessary wear can occur to the chain, bar,
and unit.
• Do not put pressure on the saw at the end of the cut.
Thumb on
underside of
Handle Bar
Chain Line Straight Arm

18
OPERATION
REMOVING BUTTRESS ROOTS
A buttress root is a large root extending from the trunk of the tree above the ground.
Remove large buttress roots prior to felling. Make the horizontal cut into the buttress
rst, followed by the vertical cut. Remove the resulting loose section from the work area.
Follow the correct tree felling procedure as stated in Proper Procedure For Tree Felling
after you have removed the large buttress roots.
PROPER PROCEDURE FOR TREE FELLING
• Felling a tree — When bucking and felling operations are being performed by two
or more persons at the same time, the felling operation 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
notied immediately.
• Operator should keep on the uphill side of terrain as the tree is likely to roll or slide
after it is felled.
• 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 the path of safe retreat approximately 135° from the
planned line of fall.
• Consider the force and direction of the wind, the lean and balance of the tree, and
the location of large limbs. These things inuence 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.
• 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 trunk on the side
of the tree. Make the notch cuts 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.
Vertical Cut
Loose section
Horizontal
Cut
Planned Line o
f
f
all
Path of safe retreat
135°from planned
line of fall

19
OPERATION
• Felling Backcut. As the felling cut gets close to the hinge, the tree should begin to fall.
If there is any chance the tree may not fall in the desired direction or it may rock back
and bind the saw chain, stop cutting before the felling cut is complete and use wedges
of wood, plastic or aluminum to open the cut and drop the tree along its desired line of
fall. Make the backcut level and horizontal, and at a minimum of 2 in. (5 cm) above the
horizontal cut of the notch.
• 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.
• 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.
Planned
Line of fall
Path of
safe
retreat
135˚
135˚
45˚
45˚
90˚
HINGE
2 in. (5 cm) OR 1/10 DIA
Back cut2” (5cm)
Notch-
Approx.
1/3
Diameter
of trunk
Back cut
Hinge
Wedge

20
OPERATION
BUCKING
Bucking is the term used for cutting a fallen tree to the desired log length.
• Always make sure your footing is secure and your weight is distributed evenly on
both feet.
• Cut only one log at a time.
• Support small logs on a saw horse or another log while bucking.
• Keep a clear cutting area. Make sure that no objects can contact the guide bar
nose and chain during cutting as this can cause kickback. Refer to Kickback
earlier in this manual.
• When bucking on a slope, always stand on the uphill side of the log. To maintain
complete control of the chain saw when cutting through the log, release the
cutting pressure near the end of the cut without relaxing your grip on the chain
saw handles. Do not let the chain contact the ground. After completing the cut,
wait for the saw chain to stop before you move the chain saw. Always stop the
motor before moving from tree to tree.
BUCKING WITH A WEDGE
If the wood diameter is large enough for you to insert a soft bucking wedge without
touching the chain, you should use the wedge to hold the cut open to prevent
pinching.