GreenWorks Pro Optimow 50H User manual

www.optimow.com
Optimow 25H/ Optimow 50H
Optimow 25/ Optimow 50
2529802/2529902/
2530002/2530102
Robotic LawnmowerEN OPERATOR’S MANUAL
FR
ES Cortacésped robótico MANUAL DEL OPERARIO
Tondeuse à gazon robotique MANUEL OPÉRATEUR

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The materials, technical data, and figures in this manual are provided for guidance only and are not
binding. The manufacturer reserves the right to make any changes to the technical characteristics
and all features of operation, materials, technical data, or figures without prior warning.
The following pages contain important safety and
operating instructions
Carefully read and review all safety instructions,
warnings and cautions contained in this manual.
Failure to read and follow these instructions,
warnings and cautionary statements may result
in severe injury or death to persons and pets or
damage to personal property.

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Contents
Product Safety ........................................................................................ 4
Reading the operator manual ........................................................... 4
Operational safety ............................................................................ 7
Product Unboxing ................................................................................... 8
Introduction ............................................................................................ 9
Installation .............................................................................................. 9
Planning Layout and Preparation...................................................... 9
Installing and Connecting the Charging Station ..............................10
Position for the charging station as follows:....................................10
Connecting the Power Supply.........................................................11
Initial Charging of the Battery......................................................... 12
Installing the Boundary Wire .......................................................... 13
Installing a Guide Wire ................................................................... 16
Calibrating and Initial Start Up ........................................................ 18
Operation.............................................................................................. 19
Starting and Stopping the Mower .................................................. 19
Switching Off the Mower ............................................................... 19
Adjusting Cutting Height ................................................................ 19
Lifting and Carrying the Mower...................................................... 20
Pairing Mobile App to Mower......................................................... 20
Maintenance......................................................................................... 21
Removing the Body from Chassis.................................................. 21
Cleaning ......................................................................................... 21
Replacing Blades............................................................................ 22
Maintaining the Battery.................................................................. 22
Replacing the Battery ..................................................................... 23
Winter Storage Mower .................................................................. 24
Winter storage Charging Station.................................................... 24
Troubleshooting .................................................................................... 25
Indicator LEDs on Mower .............................................................. 25
Symptoms...................................................................................... 26
Breaks in Boundary Wire and Guide Wire ...................................... 26
Technical Data....................................................................................... 27
Environmental Protection ..................................................................... 29
Warranty Terms..................................................................................... 30
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EXPLANATION OF SYMBOLS ON THE MOWER
This is a dangerous power tool. Use care when operating and follow all safety
instructions and warnings.
Read the operator manual carefully before operating the mower.
Remove the safety key before working on or lifting the mower.
Hazard of thrown objects during operation.
Keep a safe distance from the mower when operating and keep people, especially
children, pets and bystanders away from the area where mower is being operated.
Do not ride on the mower.
Class III appliance
As a complement to this operator manual, more information is available on the website:
www.optimow.com
READING THE OPERATOR MANUAL
The following symbols are important for reading and understanding
the operating instructions.
Wear protective gloves
The following system is used in the operator manual to make it easier to understand:
•WARNING! Warning texts alert users and consumers to the existence and nature of hazards so
that they can prevent injury by appropriate conduct during use of the product.
•CAUTION: Caution texts alert users and consumers to the existence and nature of product risks so that
they can prevent damaging the product by appropriate conduct during use of the product.
•NOTE: Notes inform users and consumers about additional information about product use.
•Text written in bold italics refers to another section in the operator manual.
•Text written in bold refers to settings on the mower.
Product Safety

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Product Safety
IMPORTANT
READ CAREFULLY BEFORE USE! KEEP FOR FUTURE REFERENCE!
Training
WARNING! Automatic lawnmower! Keep away from the machine! Supervise children!
•Read the instructions carefully. Be familiar with the controls and the proper use of the machine.
•Never allow people unfamiliar with these instructions or children to use the machine. Local regulations
may restrict the age of the operator.
•The operator or user is responsible for accidents or hazards occurring to other people or their property.
Preparation
•Ensure the correct installation of boundary and guide wires as instructed.
•Periodically inspect the area where the machine is to be used and remove all stones, sticks, wires, bones,
and other foreign objects.
•Periodically visually inspect to see that the blades, blade bolts and cutter assembly are not worn or
damaged. Replace worn or damaged blades and bolts in sets to preserve balance.
General
•Never operate the machine with defective guards, or without safety devices, for example the body, in
place.
•Do not put hands or feet near or under rotating parts.
•Never pick up or carry an machine while the motor is running.
•Remove (or Operate) the disabling device from the machine
- before clearing a blockage;
- before checking, cleaning or working on the machine.
•Do not leave the machine to operate unattended if you know that there are pets, children or people in the
vicinity.
Maintenance and storage
•Keep all nuts, bolts, and screws tight to be sure the machine is in safe working condition.
•Replace worn or damaged parts for safety.
•Ensure that only replacement cutting means of the right type are used.
•Ensure that batteries are charged using the correct charger recommended by the manufacturer. Incorrect
use may result in electric shock, overheating or leakage of corrosive liquid from the battery.
•In the event of leakage of electrolyte flush with water/neutralizing agent, seek medical help if it comes
into contact with the eyes, etc.
•Servicing of the machine should be according to manufacturers’ instructions.
PROPOSITION 65
This product contains a chemical known to the state of California to cause cancer, birth defects or other
reproductive harm. 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;
•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 in a well-ventilated area, and work with approved safety equipment,
such as dust masks that are specially designed to filter out microscopic particles.

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Product Safety
SPECIAL RULES
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
The following system is used in the operator manual to make it easier to understand:
•This device may not cause harmful interference.
•This device must accept any interference received, including interference that may cause undesired
operation.
CAUTION: Changes or modifications not expressly approved by the party responsible for compliance could void
the user’s authority to operate the equipment.
IMPORTANT SAFETY INSTRUCTIONS
When using electrical products, basic precautions should always be practiced including the following:
1 READ AND FOLLOW ALL SAFETY INSTRUCTIONS.
2 Read and follow all instructions that are on the product or provided with the product.
3 For a cord-connected or direct plug-in power unit, do not use an extension cord.
4 Reference the National Electrical Code, NFPA 70, specifically for the installation of wiring and clearances
from power and lighting conductors.
5 Installation work and electrical wiring must be done by qualified person(s) in accordance with all applicable
codes and standards, including fire-rated construction.
6 For a cord-connected or direct plug-in power unit, do not install or use within 10 feet of a pool.
7 For a cord-connected or direct plug-in unit, do not use in a bathroom
8 WARNING: Risk of Electric Shock. When used outdoors, install only to a covered Class A GFCI
protected receptacle that is weatherproof with the power unit connected to the receptacle. If one is not
provided, contact a qualified electrician for proper installation. Ensure that the power unit and cord do not
interfere with completely closing the receptacle cover.
9 WARNING! Risk of Fire. Installation involves special wiring methods to run wiring through a building
structure. Consult a qualified electrician.
10 WARNING: Output wiring of PSU more than 6 feet long may introduces a risk of fire, electric shock,
or injury to persons.
SAVE THESE INSTRUCTIONS – This manual contains important safety and operating instructions for
power units.
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part
15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference
in a residential installation. This equipment generates, uses and can radiate radio frequency energy, and if not
installed and used in accordance with the instructions, may cause harmful interference to radio or television
reception, The reception can be determined by turning the equipment o and on, the user is encouraged to try
to correct the interference by one or more of the following measures:
•Reorient or relocate the receiving antenna.
•Increase the separation between the equipment and the receiver.
•Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
•Consult the dealer or an experienced radio/TV technician for help.
To satisfy FCC RF exposure requirements, a separation distance of 20cm or more should be maintained between
the antenna of this device and persons during device operation.
To ensure compliance, operations at closer than this distance is not recommended

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OPERATIONAL SAFETY
This operator manual contains all of the basic information concerning the safe operation
and maintenance of the mower.
Product Safety
Carefully read all the safety precautions and instructions in this operator manual before operating
the mower. Save this operator manual for future reference. Follow manufacturer instructions
regarding installation, operation, maintenance, and repair.
This mower is designed to mow grass in open and level areas. Use only equipment
recommended by the manufacturer. All other types of use are incorrect.
The mower is not intended for use by persons (including children) with reduced physical,
sensory, or mental capabilities, or lack of experience and knowledge, unless they have been
given supervision or instruction concerning use of the appliance by a person responsible for their
safety.
Children should be supervised to ensure that they do not play with the appliance.
The mower must only be operated, maintained, and repaired by persons that fully understand its
special characteristics and safety regulations.
Start the mower in accordance with the instructions. When the safety key is in the Enabled
position, keep your hands and feet away from the rotating blades.
Never put your hands and feet under the mower.
Do not modify the original design of the mower. All modifications void the guarantee.
Switch off mower using the STOP button on the mower when persons, especially children, or
pets are in the cutting area. It is recommended that the mower be programmed for use during
hours when the area is free from persons or pets.
Remove objects from the operating area such as branches, toys, stones, tools that can damage
the blades. The mower can fasten on objects in the operating area and help may be required to
remove the object before the mower can continue mowing.
Never lift up the mower or carry it with the safety key inserted.
Always switch off the mower using the STOP button when the mower is not in use. The mower
can only start when the safety key is inserted and the START button is pressed.
The built-in alarm is very loud. Be careful, especially if the mower is handled indoors.
Do not use the mower with a defective blade disc or body.
Do not let persons who do not know how the mower works and behaves use it.
Do not put anything on top of the mower or its charging station.
Always wear protective gloves when working with the mower’s blades.

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1 Removable cover
2 Stop button
3 Start button
4 LED indicators
5 Cutting height adjustment
6 Rear wheels
7 Front wheels
8 Blade disc
9 Battery cover
10 Carrying handle
11 Safety key
12 Charging station
13 LED for operation check
14 Operator manual and quick guide
15 Power supply*
16 Screws for securing charging station (x5)
17 Low voltage cable
18 Loop wire for boundary and guide wire
19 Wire pegs
20 Extra blades and screws (x3)
21 Ruler (break o carton top)
22 Splice and guide wire connectors
23 Loop wire connectors
24 Label-Wire marker. G1 & G2 = Guide wire 1 & 2. BL & BR = Boundary
wire Left & Right”
* The appearance of the power supply may differ depending on market.
Unbox the mower and installation materials. Make certain that all parts shown in Figure 1 are included and
undamaged. Contact your retailer if any items are missing or damaged.
Keep the Quick Guide in a safe place since it contains the unique pairing code for your mower.
Product Unboxing
BL
BL
BL
BL
BR
BR
BR
BR
G1
G1
G1
G1
G2
G2
G2
G2
WIRE MARKERS
24
1
2
3
45789
10
11
12
13
17 19
18
15
21
20 23
22
16
14
6

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Installation
Read the entire section before beginning installation. Installation affects mower capability.
Plan the installation carefully.
The following are the main tasks within the installation:
•Planning layout and preparation
•Installing and connecting the charging station
•Connecting the power supply
•Initial charging of the battery
•Installing the boundary wire
•Installing the guide wire
•Calibrating and initial start up
PLANNING LAYOUT AND PREPARATION
Ensure that the following conditions exist in the operating area where the mower will be used:
•The grass is shorter than 4 inches.
•There are no stones, loose pieces of wood, wire, live mains cables, and other foreign objects.
•The operating area is even and has no ditches, grooves, and steep slopes greater than 35%.
The following tools are required for installation, but not included:
•Hammer/rubber mallet to drive the pegs into the ground
•Combination pliers to cut the boundary wire
•Polygrip to press the couplers together
•Hex key, 6 mm for securing the charging station to ground
HOW THE ROBOTIC LAWNMOWER WORKS
The product is an autonomous appliance that can mow the grass evenly in a random
pattern. The boundary wire delimits the working area around the edge and isolate the
fixed objects. The product will drive back to the charging station when the battery needs
to be charged. It is equipped with various sensors to operate safely and smartly.
After following the installation instructions in the manual and in the App, the robot will be
ready to take care of your lawn.
CONNECTIVITY
The product supports IoT (Internet of Thing) so it can be connected to the internet via
cellular network using the appropriate App. The App provides operation settings for your
own robot and makes it possible to control it remotely.
It also supports FOTA (Firmware over the air) so it can be automatically updated to the
latest software to get the best performance.
Introduction

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The entire charging station must be inside the operating area as shown
in the figure.
Installation
Position for the charging station as follows:
•In a level spot out of direct sunlight
(The front end of the charging station must not be 2 inches higher
or lower than the back end.)
•Within reach of a wall socket
(The low voltage cable is 33 ft long.)
•With at least 10 ft in front of it and 3 ft to each side
(Do not position in confined spaces in the operating area.)
INSTALLING AND CONNECTING THE CHARGING STATION
>3 ft
>3 ft
6 ft
1 ft
>10 ft
33 ft

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CONNECTING THE POWER SUPPLY
Connect the power supply in a cool, dry environment; out of direct sunlight.
If the power supply is connected to an electrical socket outdoors, it must be approved for outdoor use.
The low voltage cable can cross the operating area if it is stapled down or buried.
CAUTION: Do not cut, splice, or alter the low voltage cable. Altering the low voltage cable will void the
product guarantee.
Installation
Connect the low voltage cable to the charging station.
Thread the low voltage cable behind the tabs to hold it in place in the
charging station.
Connect the power supply power cable to a 100-120 V wall socket.
Remove the protective cover on the charging station by pressing in the
tabs on each side of the base and lifting away the cover.

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Installation
INITIAL CHARGING OF THE BATTERY
Insert the safety key into the underside of mower and turn to the
Enable position.
Place the mower into the charging station while the boundary
and guide wires are being laid.
The mower cannot be used before the installation is complete.

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INSTALLING THE BOUNDARY WIRE
When installing the boundary wire there are a number of situations to consider as described in the table below.
Table 1. Handling Deviations and Obstacles in the Operating Area
VARIATION WITHIN OPERATING AREA BOUNDARY WIRE PLANNING
Fixed obstacles level with lawn that the mower can traverse (paving
stone paths or similar).
Lay the boundary wire under the paving stones or in the joint between
the paving stones.
Never run the mower over gravel, mulch, or similar material that can
damage the blades.
Fixed obstacles ± 0.4 inch high. Lay the boundary wire 4 inches from the obstacle.
Fixed obstacles 0.4—2 inches high, small ditches, flower beds, or low
kerbstones.
Lay the boundary wire 12 inches from the obstacle.
Fixed obstacles 2 inches or higher (fences or walls). Lay the boundary wire 14 inches from the obstacle.
Fixed obstacles taller than 6 inches that can withstand a collision
(trees or shrubs).
No measures required; the mower will turn around when it collides
with this type of obstacle.
Fixed obstacles that slope slightly such as stones or large trees with
raised roots.
Lay the boundary wire 12 inches from or remove obstacle.
Fixed obstacles that cannot withstand a collision. Lay the boundary wire 14 inches from and around the obstacle and
then return it back along the same route.
Long and narrow passages and areas narrower than 5 feet. Install a guide wire.
Borders on a slope, road, precipice, or water. Supplement the boundary wire with a physical barrier at least
6 inches high.
Slope up to 35% within operating area. No measures required; the mower can operate up to a 35% as long
as the slope is not at the boundary of the operating area.
Slope less than 15% at operating area edge. Lay boundary wire as normal.
Slope greater than 15% at operating area edge. Do not lay boundary wire unless a fixed obstacle (fence or wall)
exists to prevent the mower from leaving the operating area.
When a part of the operating area outer edge slopes more than 15%;
lay the boundary wire 7.8 inches in on the flat ground before the
beginning of the slope.
NOTE: Slope gradient is defined in percentage units (%). The slope as a percentage unit is calculated as the difference in elevation in inches for
every 10 inches. If, for example, the difference in elevation is 1 inch, the slope gradient is 10%.
Installation

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Installation
To isolate fixed objects that cannot withstand a collision like bushes and
flower beds, make an island around it by lay the boundary wire starting
from the border nearest the object and go around the object and then
return it back along the same route. If wire installed counterclockwise
around the lawn, shall it be installed clockwise around the island
according to the picture. The two incoming and outgoing wire shall be
close to each other under the same wire peg.
Temporarily secure the end of the loop wire to a peg or other object at
the charging station.
Lay out the loop wire in a counter-clockwise direction alone the planned
boundary of the operating area taking into consideration the rules in
Table 1 until you return to the charging station.
To isolate fixed objects, if you are going to install a guide wire, create
an eyelet with about 8 inches of extra boundary wire at the point where
the guide wire will later be connected.
See Installing a Guide Wire on page 16 for more information.
If the boundary wire is too short, use provided splice and guide wire
connectors to splice additional boundary wire as follows:
1 Insert both ends of the boundary wire into the splice and guide
wire connector. Check that the wires are fully inserted into the
splice and guide wire connector so that the ends are visible
through the splice and guide wire connector.
2 Squeeze down the button on top of the splice and guide wire
connector fully using a polygrip until you hear a click.
Lay down the loop wire reel at the charging station.
Go back around the boundary of the operating area and secure the
boundary wire either using pegs or buried in the ground. Pegs are
recommended since this allows for adjustment during the first few
weeks of operation.
When securing the boundary wire with pegs:
•Cut the grass very low with a standard lawnmower or a trimmer
where the wire is to be laid.
•Lay the boundary wire on the ground and secure with pegs
close together.
•Push or hammer the pegs into the ground.
Do not push the pegs so far into the ground so that they strain the
boundary wire.
When burying the boundary wire:
•Bury the boundary wire 0.4 inch—8 inches into the ground.
When the boundary wire is completely laid out and secured, install end
loop wire connectors as follows:
1 Open the loop wire connector and place the wire in the loop wire
connector grip.
2 Press the loop wire connectors together using a polygrip until you
hear a click.
Cut off any surplus boundary wire 0.4 inch-1 inch above each connector.
0cm
12 inches
14 inches

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Connect the boundary wire to the charging station as follows:
1 Remove the protective cover on the charging station and thread
the wire behind the tabs into the channel at the rear of the
charging station.
2 Press the connector onto the metal pins on the charging station
(marked with left and right arrows).
NOTE: Make sure the boundary wire to the right of the charging station
is connected to the arrow pointing right and the same for the left side.
Installation

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Do not lay the guide wire closer than 12 inches from the boundary wire.
Do not lay the guide wire across the boundary wire.
Lay the guide wire straight under the charging plate in the track
intended for this and then at least 6.5 ft straight out from the front edge
of the plate.
Leave as much space as possible to the left of the guide wire (as seen
when facing the charging station).
Use the same cable roll for both the boundary wire and the guide wire.
The guide wire, like the boundary wire, must be secured to the ground
with pegs or buried.
When installing the guide wire on a steep slope, lay the wire at an
angle to the slope so it is easier for the mower to follow the guide wire
on the slope.
Do not lay the guide wire at sharp angles or the mower will have
difficulty following it.
INSTALLING A GUIDE WIRE
The mower uses the optional guide wire to find its way back to the
charging station, but also find hard-to reach areas of the operating area.
For example, the guide wire is laid between the charging station and a
remote part of the working area or through a narrow passage.
For narrow passages (less than 10 feet) or to shorten search times, a
guide wire is recommended.
Plan the location of the guide wire before laying out the boundary wire.
Run the guide wire to the loop on the boundary wire where the guide
wire is to be connected.
Cut the boundary wire using the combination pliers.
Installation
>8 inches
>3 ft
>3 ft
33 ft
6 ft
>6.5 ft
>6.5 ft
>10 ft
1 ft

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Installation
Insert both ends of the boundary wire as well as the end of the guide
wire into the splice and guide wire connector. Check that the wires are
fully inserted into the splice and guide wire connector so that the ends
are visible through the splice and guide wire connector.
Squeeze down the button on top of the splice and guide wire connector
fully using a polygrip until you hear a click.
Secure the splice and the boundary and guide wires either using pegs
or by burying.
Connect the guide wire to the charging station as follows:
1 Remove the protective cover on the charging station and thread
the guide wire behind the tabs into the channel leading to the
terminals.
2 Connect the guide wire to the contact pin on the charging station
that is labelled G1.
Installing a second guide wire (not on all models):
1 If you have more than one narrow passage or a complicated
garden you can install a second guide wire. To do this, follow
the steps for installing a guide wire except connecting it to the
contact pin on the charging station marked G2.
G1
G2

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Pair the mower with Mobile App as instructed in Pairing Mobile App
to Mower on page 20.
Installation
Check the LED indicator on the charging station:
•LED indicator lights up continuously green, if the output voltage
of the power supply is available and the boundary wire is not
interrupted.
The LED indicator does not light up when the output voltage of the
power supply is not available.
If the indicator LED does not show a solid or green light, see Indicator
LEDs on the Charging Station on page 25 for troubleshooting.
CALIBRATING AND INITIAL START UP
Secure the charging station to the ground using the five supplied fixing
screws using a 6 mm hex key.
NOTE: Do not make new holes in the charging station base plate. Only
the existing holes may be used to secure the base plate to the ground.
NOTE: Do not step or walk on the charging station base plate.

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Operation
STARTING AND STOPPING THE MOWER
To start the mower:
1 Insert the safety key and rotate counter clockwise to position ”1”.
2 Slide the START button latch backwards.
3 Press down the START button.
To stop the mower:
Press the STOP button on the mower.
SWITCHING OFF THE MOWER
Press the STOP button on the mower and remove the safety key.
WARNING! Always remove the safety key when performing
maintenance or if the mower must be moved.
ADJUSTING CUTTING HEIGHT
For the first few weeks of mowing, set the cutting height to at least 2.4
inches to avoid cutting the boundary wire and guide wire. Lower the
setting one step each week thereafter until the desired cutting height is
reached.
Turn the cutting height adjustment knob to the required setting. The
selected setting is the marking on the body that aligns with the arrow
on the knob.
Turn clockwise to increase the cutting height.
Turn anti-clockwise to decrease the cutting height.
The cutting height for the mower can be adjusted between 0.8 inch and
2.4 inches for model 33 and 66 and 2.4 to 4 inches for model 33H and
66H.
Start Stop
a
b
a
b

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PAIRING MOBILE APP TO MOWER
Download Greenworks GreenGuide from App Store/Google Play and follow the on-screen instructions for how
to pair the mower. Have the unique pairing code (found on the quick guide manual) and the mower at hand.
LIFTING AND CARRYING THE MOWER
Press the STOP button and remove the safety key before lifting.
Always lift the mower using the carrying handle.
Operation
ENERGY SAVING MODE
If the mower shall not be used for some time it is possible to put mower in a very low energy mode with the
switch “Energy saving mode” in mower’s setting page in “Greenworks tools App”.
When “Energy saving mode” selected the mower will run to Charging Station, charge the battery and disable both
Charging station (LED will be disabled) and the mower. The mower will also disable the connection to the App
when mower is in Energy Saving Mode.
After battery charging started, can the mower only wake up by pull out the mower from Charging Station and then
push it in Charging station again.