Read all safety rules and instructions carefully before operating this tool.
Owner’s Manual
TOLL-FREE HELPLINE: 1 (855) 345-3934
www.greenworkstools.com/80V-PRO
21” 80V Cordless Self-propelled
Lawn Mower
MO80L00
2
Contents .............................................................................................................................. 2
Product specifications .......................................................................................................... 2
Safety information ............................................................................................................. 3-7
Symbols ............................................................................................................................8-9
Know your lawn mower ...................................................................................................... 10
Assembly .......................................................................................................................11-17
Operation ...................................................................................................................... 18-23
Maintenance ................................................................................................................. 24-27
Service .............................................................................................................................. 28
Environmentally safe battery disposal ............................................................................... 29
Troubleshooting ................................................................................................................. 30
Warranty ............................................................................................................................ 31
Exploded View ................................................................................................................... 32
Parts List.......................................................................................................................33-34
PRODUCT SPECIFICATIONS
21” 80V Cordless Self-propelled Lawn Mower
Battery type ............................................................................................ 80V Lithium-ion
No-load speed ....................................................................................... 2800/3000 RPM
Self propelled speed .................................................................. 1.6-3.9 fps (0.5-1.2 m/s)
Height adjustments ................................................................ 1 3/8 - 3 3/4” (3.5 - 9.5 cm)
Functions ......................................................... 3-in-1: Mulch, side discharge or rear bag
Unit weight (with 5Ah battery)..................................................................... 74 lbs (33.5kg)
CONTENTS
3
SAFETY INFORMATION
GENERAL SAFETY RULES
READ ALL INSTRUCTIONS CAREFULLY
W A R N I N G
This symbol indicates important safety instructions. If these instructions are not followed, it could
endanger the personal safety and/or property of the operator and others. Read and understand
all instructions in this manual before attempting to operate the mower. Failure to comply with
these instructions may result in personal injury.
D A N G E R
This mower was built to be operated according to the rules for safe operation that are contained in
this manual. As with any type of power equipment, carelessness or error on the part of the operator
can result in serious injury. This mower is capable of amputating body parts and throwing objects.
Failure to observe the following safety rules could result in serious injury or death.
W A R N I N G
Basic safety precautions should always be followed when using electric lawn mowers, in order to
reduce the risk of fire, electric shock, and personal injury.
W A R N I N G
Use of this mower should be restricted to individuals who have read and understoood and will
follow the warnings and instructions that are printed in this manual and on the mower.
W A R N I N G

– For safe operation, read and understand the instruction manual.

– To reduce the risk of electric shock, do not expose to water or operate on wet ground.

– Replace damaged parts immediately. Disconnect and remove battery prior to servicing.

– Remove the battery pack before servicing or removing blade.

– Do not reach under blade guard.

– Go across slopes, not up and down.

– Do not operate within 100 ft. of people or animals. Do not mow when children or
others are around.

– Keep safety devices (guards, shields, switches etc.) in place and working.

– Look down and behind before and while moving backwards.

– Remove objects that could be thrown by the blade.

– To reduce the risk of eye injury, wear safety glasses.

– Some dust created by using power tools contains chemicals known to the state of
California to cause cancer and birth defects or other reproductive harm.

– Do not operate on inclines greater than 15°.

– Meet CPSC blade safety requirements.

– Double insulation–when servicing, use only identical replacement parts.

– Do not recharge batteries in a confined or unvented area.

– Do not smoke, strike a match, or cause a spark in the vicinity of the battery during
charging.
4
SAFETY INFORMATION
– To reduce the risk of injury, inspect catcher assembly frequently and replace with
recommended replacement if there are signs of wear or deterioration.

– For use only with Greenworks #2901302 / #2902402 / #2902502 battery and
GREENWORKS #2901402 charger.
• Carefully read all instructions on the mower and in the manual before attempting to assemble and
operate the mower. Keep this manual in a safe place for future reference, and consult it regularly.
• Become familiar with all controls and their proper operation. Know how to stop the mower
and how to disengage the power in an emergency.
• In order to avoid contact with the blade or injury caused by a thrown object, stay in the
operating zone behind the handles, and keep children and bystanders at least 100’ (30 m)
away from the mower while it is in operation. Stop the motor immediately if someone enters
the mowing area.
• Thoroughly inspect the area where the mower is to be used. Remove all stones, sticks, wire,
bones, toys, and other objects that could be tripped over or thrown by the blade. Thrown
objects can cause serious personal injury.
• Plan your mowing pattern in such a way as to avoid discharging material towards roads,
sidewalks, bystanders, etc. Do not discharge material against a wall or obstruction. Doing so
may cause the discharged material to ricochet back towards the operator.
• Always wear proper eye protection that complies with ANSI Z87.1 in order to protect your
eyes while operating or performing any adjustment or repair. Thrown objects that ricochet
can cause serious eye injury.
• Always wear a face mask or a dust mask when operating the mower in a dusty environment.
• Dress properly. Do not wear loose clothing or jewelry that can get caught in moving parts.
The wearing of protective gloves and safety footwear is recommended.
• Many injuries occur as a result of the mower being pulled over the operator’s foot during a
fall caused by slipping or tripping. Do not operate this mower in bare feet, or while wearing
sandals or lightweight (e.g., canvas) shoes. Do not hold on to the mower if you are falling.
Release the handle immediately.
• Never pull the mower back towards you while you are walking. If you must back the mower
away from a wall or an obstruction, first look down and behind in order to avoid tripping, and
then follow these steps:
• Step back from the mower in order to fully extend your arms.
• Be sure that you are well balanced.
• Pull the mower back slowly.
• Do not use the mower for any job except that for which it is intended. Do not force the mower.
• Do not operate the mower while under the influence of alcohol or drugs.
• Stay Alert: Do not operate the mower when you are tired. Pay attention to what you are
doing. Use common sense.
• Do not put hands or feet near rotating parts or under the cutting deck. Contact with the blade
can amputate hands and feet.
• Do not attempt to adjust the wheels or the cutting height while the motor is running.
5
SAFETY INFORMATION
• Avoid dangerous environments. Do not operate the mower in the rain or in wet or damp
grass.
• Mow only in daylight or in good artificial light. Do not rush a mowing job.
• Stop the blade when crossing gravel driveways, walkways, or roads.
• If the mower starts to vibrate excessively, stop the motor and check for the cause
immediately. Vibration is generally an indicator of a tool malfunction or damaged part.
• Stop the motor and wait until the blade comes to a complete stop before removing the grass
catcher or unclogging the chute. The cutting blade will continue to rotate for a few seconds
after the motor is shut off. Do not place any part of your body in the blade area until you are
sure that the blade has stopped rotating.
• Never operate mower without a proper trail shield, discharge cover, grass catcher, switch
control, or other safety device in place and in working order. Do not operate the mower with
damaged safety devices. Doing so can result in injury.
• Don’t force lawn mower. It will do the job better and safer at the rate for which it was
designed.
• Store idle lawn mower indoors. When not in use, lawn mower should be stored indoors in a
dry and locked place, out of reach of children.
• Maintain lawn mower. Keep cutting edges sharp and clean for the best performance and
safety.
• If lawn mower strikes a foreign objects follow these steps:
• Stop lawn mower, release the bail lever.
• Remove the battery.
• Inspect for damage.
• Repair any damage before restarting and operating the lawn mower.
• Do not charge lawn mower in rain or in wet location.
• Remove or disconnect battery before servicing, cleaning or removing material from lawn
mower.
• Inspect lawn mover cord periodically and if damaged , have it repaired by an authorized
service facility.
• Use identical replacement blades only.
• Do not open or mutilate the battery. Released electrolyte is corrosive and may cause
damage to the eyes or skin, it may be toxic if swallowed.
CHILD SAFETY
Tragic accidents can occur if the operator is not aware of the presence of children.
• Keep children out of the mowing area and under the watchful care of a responsible adult.
• Do not allow children under the age of 14 to operate this mower. 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 mower off if a child or any other person enters the mowing area.
6
SAFETY INFORMATION
• Look behind and down for small children before and while moving backwards.
• 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 mower.
BATTERY & CHARGER
C A U T I O N
USE ONLY GREENWORKS APPROVED REPLACEMENT BATTERIES, OTHER BATTERIES
MAY CAUSE INJURY OR DAMAGE TO THE MOWER. Use with GREENWORKS #2901302 /
#2902402 / #2902502 battery and GREENWORKS #2901402 charger.
BATTERY SAFETY RULES
• Battery tools do not have to be plugged into an electrical outlet; therefore, they are always in
operating condition. Be aware of possible hazards when not using your battery tool or when changing
accessories. Following this rule will reduce the risk of electric shock, fire, or serious personal injury.
• Do not place battery tools or their batteries near fire or heat. This will reduce the risk of
explosion and possibly injury.
• Do not crush, drop or damage battery pack. Do not use a battery pack or charger that has
been dropped or received a sharp blow. A damaged battery is subject to explosion. Properly
dispose of a dropped or damaged battery immediately.
• Batteries can explode in the presence of a source of ignition, such as a pilot light. To reduce
the risk of serious personal injury, never use any cordless product in the presence of open
flame. An exploded battery can propel debris and chemicals. If exposed, flush with water
immediately.Do not charge battery tool in a damp or wet location. Following this rule will
reduce the risk of electric shock.
• For best results, your battery tool should be charged in a location where the temperature
is more than 45°F but less than 104°F. To reduce the risk of serious personal injury, do not
store outside or in vehicles.
• Under extreme usage or temperature conditions, battery leakage may occur. If liquid comes
in contact with your skin, wash immediately with soap and water. If liquid gets into your eyes,
flush them with clean water for at least 10 minutes, then seek immediate medical attention.
Following this rule will reduce the risk of serious personal injury.
• When battery pack is not in use, keep it away from other metal objects like: paper clips, coins,
keys, nails, screws, or other small metal objects that can make a connection from one terminal
to another. Shorting the battery terminals together may cause sparks, burns, or a fire.
• Always remove battery pack from your tool when you are assembling parts, making
adjustments, cleaning, or when not in use. Removing battery pack will prevent accidental
starting that could cause serious personal injury.
• Always remove battery pack before storing the device. When battery becomes fully charged,
unplug the charger from the power supply and remove the battery pack from the charger.
• Always wear eye protection with side shields marked to comply with ANSI Z87.1, along with
hearing protection. Failure to do so could result in objects being thrown into your eyes and
other possible serious injuries.
• Keep battery pack dry, clean, and free from oil and grease. Always use a clean cloth when cleaning.
Never use brake fluids, gasoline, petroleum-based products, or any solvents to clean battery pack.
PROPER CARE FOR BATTERY
Off-season storage
SAVE THESE INSTRUCTIONS
7
SAFETY INFORMATION
To obtain the longest possible battery life, we suggest the following:
• Remove the battery pack from the charger once it is fully charged and ready for use.
For battery pack storage longer than 30 days:
• Store the battery pack where the temperature is below 80°F and away from moisture.
• Store battery packs in a 30%-50% charged condition.
• Every two months of storage, charge the pack as normal.
CHARGER SAFETY RULES
• Charge the mower battery in a dry area that is protected from the weather. Do not expose the
mower or the charger to rain. Do not charge the battery in a wet location. Operate the battery
charger in temperatures between 45° and 104°F. In order to reduce the risk of electric shock,
use only the charger that is provided by the manufacturer to charge the battery.
• DO NOT ABUSE THE CHARGE CORD. Never carry the charger by the cord. Do not
disconnect the charger from the outlet or from the mower by pulling the charger cord.
• Do not use a damaged charger. Replace the charger cords or the charger immediately.
• Keep the mower and the charger away from water, heat sources (radiators, heaters, stoves,
etc.), flames, and chemicals.
• Make sure the battery pack is secured in the charger before beginning operation.
• The battery pack will become slightly warm to the touch while charging. This is normal and
does not indicate a problem.
• Do not place the charger and battery pack in an area of extreme heat or cold. They will work
best at normal room temperature.
• When batteries become fully charged, unplug the charger from the power supply and remove
the battery pack.
W A R N I N G
When transporting or servicing unit, always remove the battery.
W A R N I N G ( P R O P O S I T I O N 6 5 )
Some dust created by power sanding, sawing, grinding, drilling and other construction activities
contains chemicals known to the state of California 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 from these exposures varies, depending on how often you do this type of work. To
reduce your exposure to these chemical: work in a well ventilated area, and work with approved
safety equipment, such as those dust masks that are specially designed to filter out microscopic
particles.
SYMBOL NAME
DESIGNATION/EXPLANATION

V
Volts
Voltage

A
Amperes Current

Hz
Hertz Frequency (cycles per second)

W
Watts Power

min
Minutes Time


Alternating Current Type of current


Direct Current Type or a characteristic of current


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
Safety Alert Precautions that involve your safety.
Wet Conditions Alert Do not expose to rain or use in damp locations


Read The Operator’s Manual To reduce the risk of injury user must read and


understand operator’s manual before using this



product.


Eye Protection Always wear safety glasses with side shields that
are marked to comply with ANSI Z87.1.


Keep Hands and Feet Away
Keep hands and feet away from blade and cutting
area.


No Reach Do not reach hands or feet under mower deck.



No Slope
Do not operate on inclines greater than 15º. Mow
across the face of slopes, never up and down.


Keep Bystanders Away
Keep all bystanders at least 100 ft. away.
Ricochet Pay attention that bystanders are not injured through
foreign objects thrown from the mower.
8
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 better and safer.
SYMBOLS
no


9

The following signal words and meanings are intended to explain the levels of risk associated
with this product.
ENVIRONMENTAL PROTECTION
Waste electrical products should not be disposed of with household waste. Please
recycle where facilities exist. Check with your local authority or retailer for recycling
advice.
The battery contains material which is hazardous to you and the environment. It must
be removed and disposed of separately at a facility that accepts lithium-ion batteries.
SERVICE
Servicing requires extreme care and knowledge and should be performed only by a qualified
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.
W A R N I N G
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 (855)
345-3934 for assistance.
W A R N I N G
The operation of any power tool can result in foreign objects being thrown into your
eyes, which can result in severe eye damage. Before beginning power tool operation,
always wear safety goggles or safety glasses with side shields and, when needed, a
full face shield. We recommend Wide Vision Safety Mask for use over eyeglasses or
standard safety glasses with side shields. Always use eye protection which is marked
to comply with ANSI Z87.1.
SYMBOL SIGNAL
MEANING


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
KNOW YOUR LAWN MOWER
Read this operator's manual and safety rules before operating your lawn mower. Compare the
illustration in Figure 1 to your lawn mower in order to familiarize yourself with the location of
various controls and adjustments. Save this manual for future reference.
Fig. 1







Safety lock button
Bail lever
Lower handle
Height
adjustment
lever
Battery door
Side discharge cover
Knobs
Upper
handle
Collection
bag
Rear
discharge cover
Rear wheel
Front wheel
Mulching plug
Side discharge chute
Self
propel
lever
Self-Propel Speed Controls
11
UNPACKING
• Carefully remove the product and any accessories from the box. Make sure that all items
listed in the packing list 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 (855) 345-3934 for assistance.
PACKING LIST
• Lawn mower
• Knobs x 4
• Bolts x 4
• Collection bag
W A R N I N G
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.
W A R N I N G
Do not attempt to modify this product or create accessories not recommended for use with this
product. Any such alteration or modification is misuse and could result in a hazardous condition
leading to possible serious personal injury.
W A R N I N G
Do not insert battery until assembly is complete and you are ready to mow. Failure to comply
could result in accidental starting and possible serious personal injury.
W A R N I N G
To prevent accidental starting that could cause serious personal injury, always remove the
battery pack from the product when assembling parts.
W A R N I N G
Never operate the mower without the proper working safety devices in place. Never operate the
mower with damaged safety devices. Operation of this product with damaged or missing parts
could result in serious personal injury.
ASSEMBLY INSTRUCTIONS
• Side discharge chute
• Mulching plug
• Owner’s Manual
UNFOLDING AND ADJUSTING LOWER HANDLE (See Figure 2)
W A R N I N G
Folding or unfolding the handle improperly can damage the cables, causing an unsafe operating
condition.
• Do not damage the cables when folding or unfolding the handle.
• If a cable is damaged, contact an Authorized Service Dealer.
• Pull and rotate the handle knobs (1) 90° on both sides to loosen the lower handles (2) on both
sides.
• Move the lower handles to the operating position. You may raise or lower the handle to a
position comfortable for you. There are 3 positions (3) for you to choose. Release the handle
knobs to lock the lower handle into position.
Note: Ensure both sides are set at the same position for proper assembly.
ASSEMBLY INSTRUCTIONS
Fig. 2
12
(1) Handle knob
(2) Lower handle
(3) 3 positions
13
ASSEMBLY INSTRUCTIONS
INSTALLING THE UPPER HANDLE (See Figure 3)
• Align the mounting holes on the upper handle (1) and the lower handle (2). Insert the carriage
bolts (3) and use the knobs (4) to tighten them. Repeat the operation on the other side.
Fig. 3
(2) Lower handle
(1) Upper handle
(4)Knob
(3)Bolt
14
INSTALLING THE COLLECTION BAG (See Figure 4)
• Lift the rear discharge cover (1).
• Lift the collection bag by its handle (2) and place under the rear discharge cover so that the
hooks (3) on the collection bag are seated on the door hinge (4).
• Release the rear discharge cover. When installed correctly, the hooks on the collection bag
will extend through the openings on the rear discharge cover.
NOTE: When using the collection bag, do not install either the side discharge deflector or the mulching plug.
ASSEMBLY INSTRUCTIONS
Fig. 4
(1)Rear discharge
cover
(4)Door hinge
(2)Handle
(3)Hooks
15
INSTALLING/REMOVING THE MULCHING PLUG (See Figure 5)
• To remove the mulching plug, lift the rear discharge cover (1).
• Grasp the handle (2) of the mulching plug and pull the mulching plug out using the handle.
• The mulching plug (3) is inserted at an angle, so it requires some force to remove it.
• The mulching plug must be removed in order to install the collection bag.
• The mulching plug must be re-installed when the collection bag is removed.
ASSEMBLY INSTRUCTIONS
Fig. 5
(1)Rear discharge cover
(3)Mulching plug
(2)Handle
INSTALLING SIDE DISCHARGE CHUTE (See Figure 6)
• Lift the side discharge cover (1).
• Align the grooves (2) on the discharge chute (3) with the pins (4) on the underside of the
discharge cover (1).
• Lower the discharge chute until the hooks on the mower deck are secured in the openings in
the discharge chute.
• Release the side discharge cover.
ASSEMBLY INSTRUCTIONS
Fig. 6
16
(3) Discharge chute
(2) Groove
(1) Side discharge
cover
(4) Pins
TO INSTALL BATTERY PACK (See Figure 7)
• Lift and hold up the battery door (1).
• Align the battery (2) with the mower’s battery port.
• Make sure the battery release button (3) snaps in place and that battery is fully seated and
secure in the mower before beginning operation.
• If the machine is not going to be used immediately, remove the battery.
• Close the door.
ASSEMBLY INSTRUCTIONS
Fig. 7
17
(1) Battery door
(2) Battery pack
(3) Battery
release button
TO REMOVE BATTERY PACK (See Figure 7)
• Release the bail lever to stop the mower.
• Open the battery door.
• Press the battery release button (3) on the mower. This will cause the battery to raise out of
the tool slightly.
• Remove battery from the mower.
STARTING/STOPPING THE MOWER (See Figure 8)
To start the motor:
• Open the battery door.
• Insert the battery.
• Press and hold the safety lock button (1).
• Pull the bail lever (2) upward to the handle to start the mower and release the button.
To stop the motor:
• Release the bail lever.
C A U T I O N
Do not attempt to override the operation of the safety lock button or bail lever.
W A R N I N G
The operation of any mower can result in foreign objects being thrown into the eyes, which can
cause severe eye damage. Always wear safety glasses while operating the mower and while
performing any adjustments or repairs.
W A R N I N G
Ensure that other people and pets remain at least 100 feet (30 m) away when the mower is in use.
INSPECT THE CUTTING AREA. Remove all stones, sticks, wire, bones, and other debris that
might be thrown by the rotating blades.
18
OPERATING YOUR LAWN MOWER
Fig. 8
(2) Bail lever
(1) Safety lock button
SELF-PROPELLED MOWING (See Figure 9)
To engage the self-propelled feature:
• Open the battery door.
• Insert the battery.
• Pull the self propel lever(1) upward to meet the handle.
To disengage the self-propelled feature:
• Release the self propel lever.
To adjust the speed of self-propelled feature:
• Pull the variable speed control lever(2) towards the Rabbit Symbol to increase speed.
• Push the variable speed control lever(2) towards the Turtle Symbol to decrease speed.
OPERATING YOUR LAWN MOWER
Fig. 9
19
(1)Self propel lever
(2)Self-Propel Speed Controls
20
1
(1) Height adjustment lever
CUTTING HEIGHT ADJUSTMENT (See Figure 10)
When shipped, the wheels on the mower are set to the lowest cutting position. Before using the
mower for the first time, raise the cutting position to the height that is best suited for your lawn.
The average lawn should be between 1 1/2" to 2" (3.8 to 5 cm) during cool months and between
2" and 3 1/2" (5 cm to 8.3 cm) during hot months.
To adjust the blade height:
• To raise the blade height, grasp the height adjustment lever (1) and move it toward the back
of the mower.
• To lower the blade height, grasp the height adjustment lever (1) and move it toward the front
of the mower.
OPERATING YOUR LAWN MOWER
Fig. 10
Height Adjustments
1st setting
2nd setting
3th setting
4th setting
5th setting
6th setting
7th setting
1 3/8 - 3 3/4"
1 3/8"
1 7/8"
2 1/8"
2 5/8"
3"
3 3/8"
3 3/4"
21
SLOPE GAUGE (See Figure 11)
W A R N I N G
Slopes are a major factor related to accidents involving slips and falls, which can result in
severe injury. Operating the mower on a slope requires extra caution. If you feel uneasy on a
slope, do not mow it. For your safety, use the slope gauge that is included as part of this manual
to measure slopes before operating this unit on a sloped or hilly area.
• Mow across the face of a slope, and never up and down. Exercise extreme caution when
changing direction on a slope.
• Watch for holes, ruts, rocks, hidden objects, or bumps that may cause a slip or a trip. Tall
grass can hide obstacles.
• Always be sure of your footing. If you feel like you are losing your balance, release the bail
lever immediately. The blade will stop rotating within 3 seconds.
• Do not mow near drop-offs, ditches, or embankments, because you could lose your footing
or balance.
• Do not mow a slope that has an angle of greater than 15°, as determined using the slope gauge.
• Do not mow wet or damp grass. Unstable footing can cause slipping.
W A R N I N G
Do not mow a slope that has an angle of greater than 15° (a rise of approximately 2 1/2 feet [.75 m]
every 10 feet [3 m]). Mow across the face of a slope, and never up and down.
OPERATING YOUR LAWN MOWER
Fig. 11
22
OPERATING YOUR LAWN MOWER
MOWING TIPS
NOTE: A sharp blade will greatly enhance the performance of the mower, especially when cutting high grass.
Be sure to check the blade and to sharpen it at least once per year, as described in the Maintenance section.
• Verify that the lawn is free of stones, sticks, wires, and other objects that could damage
the blades or the motor. These objects could be accidentally thrown by the mower in any
direction, and could cause serious personal injury to the operator and to others. In order to
prevent electric shock, do not operate the mower in damp or wet conditions.
• Do not mow in circles. Travel back and forth across the lawn.
• When cutting thick grass, reduce walking speed in order to allow for a more effective cut and
a proper discharge of the clippings.
• For a healthy lawn, always cut off one-third or less of the total length of the grass. The
average lawn should be approximately 1 1/2 to 2” (3.8 to 5 cm) long during cool months, and
between 2" to 3 1/4" (5 cm to 8.3 cm) long during hot months. If there is growth, the lawn
should be cut in the fall.
MULCHING TIPS
NOTE: INSPECT THE AREA WHERE THE MOWER IS TO BE USED, AND REMOVE ALL STONES,
STICKS, WIRE, BONES, AND OTHER DEBRIS THAT MIGHT BE THROWN BY THE ROTATING BLADE.
• Release the bail lever to turn the mower OFF when crossing any graveled area (stones can
be thrown by the blade).
• Set mower to the highest cutting height when mowing on uneven ground or in tall weeds.
• For effective mulching, do not cut wet grass, because it tends to stick to the underside of
the deck, preventing proper mulching of grass clippings. New or thick grass may require a
narrower cut. The ground speed should be adjusted to the condition of the lawn. If mowing
has been delayed and the grass has been allowed to grow longer than 4" (10 cm), mow the
lawn twice in order to reduce the grass height to a maximum of 3 1/4” (8.3 cm).
• Walk at a steady pace. Overlap the cutting rows. Do not let the grass get too tall. If the grass
gets too long, start at the highest cutting position and work down to the desired cutting
height.
W A R N I N G
If you strike a foreign object, stop the motor and remove the battery. Thoroughly inspect the mower
for any damage. Repair any damage before operating the mower. Excessive vibration of the
mower during operation is an indication of damage. Thoroughly inspect the mower and repair any
damage before operating the mower.
23
OPERATING YOUR LAWN MOWER
EMPTYING THE COLLECTION BAG (See Figure 12)
• Stop mower, allow blades to completely stop, and remove the battery.
• Lift the rear discharge cover.
• Lift the collection bag by its handle and remove from mower.
• Empty grass clippings.
• Lift the rear discharge cover and reinstall the collection bag as described earlier in this
manual.
Fig. 12
24
MAINTENANCE
REPLACING THE CUTTING BLADE (See Figure 13-14)
W A R N I N G
Always protect your hands by wearing heavy gloves and/or wrapping the cutting edges with rags
or other materials when performing any maintenance on the blades. ALWAYS remove the battery
when servicing or transporting the mower.
Use only a GREENWORKS replacement blade (Item#: 2908902; Item#:2903402).
Heavy duty blade(Item#: 2908902) is the optional blade and has better bagging performance
and mulching. But mower running time is a little short.
General blade(Item#:2903402) is equipped in the mower. It is more efficient in energy saving.
But mower running time is longer.
• REMOVE BATTERY.
• While wearing leather padded gloves, wedge a block of wood between the blade and the
mower deck in order to prevent the blade from turning when the bolt (1) is being removed.
• Using an adjustable wrench or 27 mm socket, loosen the bolt (1) and remove the blade (2).
Turn the bolt “COUNTERCLOCKWISE” to loosen it and “CLOCKWISE” to tighten it.
• Remove the bolt (1) and the blade (2).
• To re-install the blade, position the blade with the cutting edges toward the ground. Assemble
the bolt as shown. Using a 27 mm socket or wrench, turn the blade nut "CLOCKWISE” in
order to secure the blade.
NOTE: Be sure to replace the parts in the exact order in which they were removed. When
installing the cutting blade, verify that it is installed with the curved ends pointing toward the
mower deck, and not toward the ground. Refer to the schematic drawing on page 32 of this
manual.
Fig. 14
Fig. 13
(1) Bolt
(2) Blade
25
MAINTENANCE
CLEANING THE MOWER
W A R N I N G
In order to reduce the risk of electric shock, do not expose the mower to water. The underside of
the mower deck should be cleaned after each use, because grass clippings, leaves, dirt, and other
debris will accumulate, which will cause rust and corrosion.
Remove any build-up of grass and leaves on or around the motor cover (do not use water).
Occasionally wipe the mower clean with a dry cloth. If debris builds up on the underside of the
mower during use, stop the motor, disconnect it from the battery, and then tilt the mower on its
side, and scrape it clean using an appropriate tool.
MAINTENANCE
STORING THE MOWER
The following steps should be taken in order to prepare the lawn mower for storage.
• Clean the mower as described in the previous section.
• Inspect the blade, and replace it or sharpen it, if required (refer to the Maintenance section).
• Store the mower in a dry, clean location. Do not store it next to corrosive materials, such as
fertilizer or rock salt.
• Store the mower indoors, in a cool, dry place, out of the reach of children. Do not cover the
lawn mower with a solid plastic sheet. Plastic coverings trap moisture around the mower,
which causes rust and corrosion.
The handle may be folded away completely for storage. (See Figure 15)
• Pull and rotate the handle knobs (1) 90° on both sides to loosen the lower handles (2) on
both sides. Fold the lower handle forward. Make sure not to bend or kink the power cord.
• Remove the battery and store it in a cool dry location, if possible. Charge the battery every
two months when not in use in order to increase its life.
• Remove the battery and store in a secure location out of the reach of children.
W A R N I N G
This battery must be charged every 2 months while in storage to maintain maximum capacity.
26
Fig. 15
(1) Handle knob
(2) Lower handle
Locked
position
Unlocked
position
MAINTENANCE
VERTICAL STORAGE FUNCTION (See Figure 16)
• Remove the battery from the mower.
• Remove the collection bag.
• Rotate the handle knobs to the unlocked position.
• Lower the handle assembly and rotate the handle knobs to the locked position.
• Lift the mower by the front end to the vertical position.
W A R N I N G
Always remove the battery from the mower before placing the unit in the vertical storage position.
27
Locked
position
Unlocked
position
Fig. 16
SERVICE
• When servicing the mower, use only identical replacement parts that are available from the
manufacturer. In order to obtain replacement parts, call the toll-free helpline, at 1 (855) 345-
3934. The use of parts that do not meet the original equipment specifications may lead to
improper performance, and may compromise safety.
• Before cleaning, repairing, or inspecting, verify that the blade and all moving parts have
come to a complete stop. Remove the battery when making any adjustments or when any of
the four wheels must be lifted off the ground.
• Follow the instructions for lubricating and changing accessories.
• Keep the handles dry, clean, and free of oil and grease.
• In order to reduce the risk of fire, keep the motor free of grass, leaves, and debris build-up.
• Check the blade and motor mounting bolts for proper tightness frequently. Visually inspect
blade for damage (e.g., bent, cracked, or worn).
• For the best performance, maintain the mower with care. Keep the mower blade sharp and
clean. Mower blades are sharp, and can cut. Wrap the blades or wear gloves, and use extra
caution when servicing.
• Keep all nuts, bolts, and screws tight in order to be sure that the equipment is in safe working
condition.
• Never tamper with safety devices. Check them regularly for proper operation.
• After striking a foreign object, stop the motor. Thoroughly inspect the mower for any damage.
Repair any damage before operating the mower.
• The grass catcher components, discharge cover, and trail shield are subject to wear and
damage, which could expose moving parts or allow objects to be thrown. As a safety
precaution, check these components frequently, and immediately replace any parts that show
signs of wear, or that are cracked or broken. Use original equipment manufacturer's (OEM)
parts only, as listed in this manual.
• When it is not in use, store the mower indoors in a dry area, and out of the reach of children.
W A R N I N G
ALWAYS REMOVE BATTERY WHEN SERVICING OR TRANSPORTING THE MOWER.
28
29
ENVIRONMENTALLY SAFE BATTERY DISPOSAL
The batteries used in this mower's battery pack contain the following toxic and corrosive
material: LITHIUM-ION.
W A R N I N G
Toxic materials must be disposed of in a specified manner in order to prevent contamination of the
environment. Before disposing of damaged or worn out Lithium-Ion battery packs, contact your
local waste disposal agency for information and specific instructions. Take the battery to a local
recycling and/or disposal centre that is certified for disposal. If the battery pack cracks or breaks,
whether it leaks or not, do not recharge it and do not use it. Dispose of it and replace it with a new
battery pack. DO NOT ATTEMPT TO REPAIR IT!
Follow these instructions in order to avoid injury and the risk of fire, explosion, or electric shock,
and to avoid damage to the environment:
• Cover the battery's terminals with heavy-duty adhesive tape.
• Do not attempt to remove or destroy any of the components of the battery pack.
• Do not attempt to open the battery pack.
• If a leak develops, the electrolytes that are released are corrosive and toxic. Do not get the
solution in the eyes or on the skin, and do not swallow it.
• Do not place batteries in regular household trash.
• DO NOT incinerate batteries.
• DO NOT place batteries where they will become part of any waste landfill or municipal solid
waste stream.
• Dispose of batteries at a certified recycling or disposal center.
30
PROBLEM
POSSIBLE CAUSE
SOLUTION
TROUBLESHOOTING





The mower does
not start.







The mower cuts
the grass unevenly.



The mower does
not mulch properly.



The mower is hard
to push.



The mower is
excessively noisy
and vibrates.
The battery is not charged.
The switch is defective.
Grass jammed between the
deck and blade.

The battery is not fully inserted
in the mower.

Battery may require service or
replacement.
The lawn is rough or uneven.
The cutting height is not set
properly.
Wet grass clippings are sticking
to the underside of the deck.

The mulching plug is missing.

The grass is too tall, or the
cutting height is too low.

The rear of the collection bag is
dragging in thick grass.

The motor shaft is bent.

The blade is unbalanced.
Charge the battery.
Replace the switch (call the tollfree
helpline, at 1 (855) 345-3934.)
Remove battery; check under deck for
jams.

Check the connection between the battery
and the mower. Make sure the battery
clicks into place.
Call toll free helpline, at 1 (855) 345-3934
or replace battery.
Check the mowing area.
Move the wheels to a higher setting.

Wait until the grass dries before mowing.


Install the mulching plug.

Raise the cutting height.


Empty the grass clippings from the
collection bag.

Stop the motor, and inspect for damage.

Repair before restarting. If vibration
persists, call the toll free helpline 1 (855)
345-3934.
31
LIMITED FOUR (4) YEAR CONSUMER WARRANTY ; TWO (2) YEAR COMMERCIAL
WARRANTY. GREENWORKS™ hereby warranties this product, to the original purchaser with
proof of purchase, against defects in materials, parts or workmanship. GREENWORKS™, at
its own discretion will repair or replace any and all parts found to be defective, through normal
use, free of charge to the customer. This warranty is valid only for units which have been used
for personal use that have not been hired or rented for industrial/ commercial use, and that have
been maintained in accordance with the instructions in the owners’ manual supplied with the
product from new.
Battery and charger carries a two (2) year consumer warranty & two (2) year commercial
warranty against defects in workmanship and materials. Batteries must be charged in
accordance with the operator’s manuals directions and regulations in order to be valid.
**WARRANTY IS NOT TRANSFERABLE AND ONLY AVAILABLE TO THE
ORIGINAL PURCHASER WITH ORIGINAL PURCHASE RECEIPT OR PROOF OF
PURCHASE
ITEMS NOT COVERED BY CONSUMER WARRANTY:
1. Any part that has become inoperative due to misuse, commercial use, abuse, neglect,
accident, improper maintenance, or alteration; or
2. The unit, if it has not been operated and/or maintained in accordance with the owner’s
manual; or
3. Normal wear, except as noted below;
4. Routine maintenance items such as lubricants, blade sharpening;
5. Normal deterioration of the exterior finish due to use or exposure
6. Operating methods other than those indicated in the product owner’s manual
7. Exposure of the product to soot and smoke, rain, snow, chemical agents, bird droppings,
sea water, sea breeze, salt, or other environmental phenomena
Warranty, Technical or Parts & Service is available by calling our toll-free helpline @ 1 855 345
3934 or visit our website WWW.GREENWORKSTOOLS.COM/80V-PRO
TRANSPORTATION CHARGES:
Transportation charges for the movement of any power equipment unit or attachment are the
responsibility of the purchaser. It is the purchaser’s responsibility to pay transportation charges
for any part submitted for replacement under this warranty unless such return is requested in
writing by GREENWORKS™.
WARRANTY
32
EXPLODED VIEW
45678910111213141516171819202122232425262728293031323334353637383940414243444345464748495051521223
33
PARTS LIST
ITEM NO.
PART NO.
DESCRIPTION
QTY
1
311041531
Motor assembly
1
2
311031519
Lower handle assembly
2
3
311011531
Upper handle assembly
1
4
341191179-1
Fan
1
5
341331179
Bumper decorative cover
1
6
341061179
Bumper
1
7
341161179
Side discharge cover assembly
1
8
311081179
21” Deck
1
9
332041531
Dash panel
2
10
341021179
Bolt M8x16
4
11
32202390
8” Wheel assembly
2
12
341281179
21” Front wheel axle
1
13
311021179
Blade
1
14
333041179
Bolt
1
15
341261179
Height adjustment bracket (right)
1
16
332091531
Back panel
1
17
341251179
Plug
1
18
341081531
Torsinal spring (rear cover)
1
19
332111179
Axle (rear cover)
1
20
332021179
Height adjustment bracket (left)
1
21
333041519
Height adjustment tension spring
1
22
332011179
Collection bag assembly
1
23
312011179
Height adjustment link bar
1
24
332081531
10” Wheel assembly
2
25
341031531
Big gear
2
26
341041531
Wheel cover
2
27
341021531
Height adjustment bar assembly
1
28
311111179
Small gear
2
29
332071531
Torsinal spring
1
30
33401222
Rear wheel axle
1
31
332061531
Bearing holder
2
32
332121531
Motor
1
33
361011531
Connector
1
34
332101531
Upper volute
1
35
341201531
Lower volute
1
34
PARTS LIST
ITEM NO.
PART NO.
DESCRIPTION
QTY
36
341211531
Press board
1
37
341061531
Back panel
1
38
361051531 Self Propell control board
1
39
332041179 Press board (rear discharge cover)
2
40
342011179 Rear discharge cover
2
41
341011531 PCB Cover
2
42
322021519 Screw
8
43
32204113
Screw
20
44
332211179 Washer
2
45
33307470
Washer
2
46
341241179 Side discharge chute
1
47
3221637
Bolt M10 x20
4
48
32910131
Nut M10
4
49
341071531 Motor connector
1
50
311011524 Gear box
1
51
32905302A Washer
4
52
3290506
Washer
2
TOLL-FREE HELPLINE: 1 (855) 345-3934
Greenworks Tools
PO Box 1238
Mooresville, NC 28115
Rev: 01 (01-03-16)
Printed in China on 100% Recycled Paper