Yard Works 060-1790-8 User manual

model number 060-1790-8 | contact us: 1.866.523.5218
IMPORTANT:
Read and follow all safety rules and operating
instructions before using this product.
Operator’s
Manual
Continuous Runtime
Brushless Mower

model no. 060-1790-8 | contact us: 1.866.523.5218
2
Table of Contents
Battery: 40 V max, 3 Ah lithium-ion (x2)
No-load speed: 3500 RPM
Cutting width: 17” (43.2 cm)
Height adjustments: 1 5/8 to 4” (4.1 to 10.2 cm)
Weight: 35 lb 8 oz (16.1 kg) with battery
Functions: 2-in-1: mulch or rear bagging
Battery charger: Wall-mounted, 30-minute charger
Wheel diameter: 7” (17.8 cm)
Replacement blade: 060-7297-8
Replacement battery: 060-7259-0
SPECIFICATIONS 2
KNOW YOUR MOWER 3
SYMBOLS 4
SAFETY INFORMATION 5
BATTERY & CHARGER 11
EXPLODED VIEW 17
PARTS LIST 18
ASSEMBLY 20
OPERATION 24
MAINTENANCE 30
TROUBLESHOOTING 35
WARRANTY 36
Specifications

model no. 060-1790-8 | contact us: 1.866.523.5218
3
Know Your Mower
1. Power lever
2. Upper handle
3. Lower handle
4. Mower housing
5. Wheel
6. Height adjustment lever
7. Safety lock-out button
8. Battery door
9. Grass catcher bag
10. Battery
11. Charger
KNOW YOUR MOWER
Before attempting to assemble, empty carton and compare parts with parts list above.
• 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1.866.523.5218forassistance.
WARNING: 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 or material damage.
WARNING: 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 or material damage.
3
4
5
8
1
2
6
7
9
11
!
!
10

model no. 060-1790-8 | contact us: 1.866.523.5218
4
Symbols
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.
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, without load.
/min Per Minute Revolutions, strokes, surface speed, orbits etc.,
per minute.
Safety Alert Indicates a potential personal injury hazard.
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 Wear eye protection when operating this
equipment.
Ricochet Thrown objects can ricochet and result in personal
injury or property damage.
Sharp Blade Danger – keep hands and feet away from blade.
Operating on a slope Do not mow a slope that has an angle greater
than 15°.
Keep Bystanders
Away Keep all bystanders at least 100’ (30 m) away.
n
o
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, others and the environment. It
must be removed and disposed of appropriately at a facility that accepts lithium batteries.
ENVIRONMENTAL PROTECTION

model no. 060-1790-8 | contact us: 1.866.523.5218
5
Safety Information
WARNING: 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.
WARNING: Use of this mower must be restricted to
individuals who have read and understood and will follow
the warnings and instructions that are printed in this
manual and on the mower.
GENERAL SAFETY RULES
WARNING: When using electric lawn mowers, basic safety precautions should always be
followed to reduce the risk of fire, electric shock, and personal injury, including the following:
READ ALL INSTRUCTIONS CAREFULLY
• 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 or property damage.
• Plan your mowing pattern in such a way as to avoid discharging material toward roads,
sidewalks, bystanders, etc. Do not discharge material against a wall or obstruction. Doing
so may cause the discharged material to ricochet back toward the operator.
• Always wear proper eye protection 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 jewellery 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 toward 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:
!
!

model no. 060-1790-8 | contact us: 1.866.523.5218
6
WARNING: 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.
DANGER: 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.
• 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.
• 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 a warning of trouble.
• 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.
!
!
Safety Information

model no. 060-1790-8 | contact us: 1.866.523.5218
7
• If lawn mower strikes a foreign object, follow these steps:
• Stop lawn mower. Release the power lever.
• Remove battery.
• Inspect for damage.
• Repair any damage before restarting and operating the lawn mower.
• Do not overreach — keep proper footing and balance at all times.
• Store idle lawn mower indoors — when not in use, lawn mower should be stored in an
indoor dry and locked-up place — out of reach of children.
• Maintain lawn mower with care — keep cutting edges sharp and clean for best and safest
performance.
• Use identical replacement blades only.
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 responsible adult.
• Stay alert, and turn the mower off if a child or any other person enters the mowing area.
• 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
BATTERY RULES FOR SAFETY
• Battery-operated units do not have to be plugged into an electrical outlet; therefore, they
are always in operating condition. Be aware of possible hazards even when the unit is not
operating.
• Remove the battery pack before making any adjustments, cleaning, or removing material
from the unit.
• A battery pack must be recharged only with the charger specified by the manufacturer.
Using a charger with an incompatible battery pack may create a risk of fire. Use battery
pack only with the specified charger.
• Use only with Yardworks 40 V, 3 Ah lithium-ion battery pack. Use the battery packs may
result in a risk of fire, electric shock,or 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 pack terminals together may cause sparks,
CAUTION: Use only Yardworks approved replacement
batteries, as other batteries may cause injury or
damage to the mower. Use with Yardworks 40 V, 3 Ah
lithium-ion battery.
!
Safety Information

model no. 060-1790-8 | contact us: 1.866.523.5218
8
• Do not open or mutilate the battery pack. Released electrolyte is corrosive and may cause
damage to the eyes or skin. It may be toxic if swallowed.
• Do not short-circuit the battery pack. There is danger of explosion.
• Protect the battery pack against moisture and water. Do not charge the unit in a damp or
wet location. Following this rule will reduce the risk of electric shock.
• If electrolyte comes into contact with skin, wash it off immediately with water.
• If electrolyte comes into contact with eyes, flush thoroughly and immediately with water.
Seek medical attention.
• In case of damage and improper use of the battery, vapour may be emitted. Provide fresh
air and seek medical help in case of complaints. The vapour can irritate the respiratory
system.
• Do not leave the battery pack in the car in the summer or near a heat source or open
flame.
• Do not incinerate the battery.
SAFETY RULES FOR CHARGER
• Use of an attachment not recommended by the manufacturer may result in a risk of fire,
electric shock or personal injury. Following this rule will reduce the risk of electric shock,
fire, or serious personal injury.
• Do not use the charger when the ambient temperature is above 35oC (95oF) or below 6oC
(42.8oF).
• Do not operate charger with a damaged cable or plug, which could cause shorting and
electric shock. Return to authorized service centre for repair or replacement.
• Do not operate charger if it has received a sharp blow, if it was dropped, or otherwise
damaged in any way. Take it to an authorized service centre for an electrical check to
determine if the charger is in good working order.
• Do not disassemble charger; take it to an authorized technician if repair is required.
Incorrect reassembly may result in a risk of electric shock or fire.
• Unplug the charger from the outlet before attempting any cleaning to reduce the risk of
electric shock.
• Disconnect the charger from the power supply when not in use to prevent damage to the
charger during a power surge.
• Do not expose the machine to rain or wet conditions. Water entering the charger will
increase the risk of electric shock.
• Make sure the cable is located so that it will not be stepped on, tripped over, come in
contact with sharp edges or moving parts, or be otherwise subjected to damage or stress.
This will reduce the risk of accident, which could cause injury, and damage to the cable,
which could result in electric shock.
• Keep cable and charger away from heat to prevent damage to housing or internal parts.
burns or a fire.
• Do not place battery products or their batteries near fire or heat. This will reduce the risk of
of explosion and possibly injury.
Safety Information

model no. 060-1790-8 | contact us: 1.866.523.5218
9
Safety Information
• Do not let gasoline/petrol, oils, petroleum-based products, etc. come in contact with
plastic parts. They contain chemicals that can damage, weaken, or destroy plastic.
• An extension cord should not be used for the charger unless absolutely necessary. Use
of improper extension cord could result in a risk of fire or electric shock. If extension cord
must be used, make sure:
• The pins on the plug of the extension cord are the same number, size and shape
as those on the plug of the charger.
• That extension cord is properly wired and in good condition.
WARNING: When transporting or servicing unit, always
remove the battery.
DANGER: If any parts are missing, do not operate unit
until the missing parts are replaced. Failure to do so
could result in possible serious personal injury.
!
!

model no. 060-1790-8 | contact us: 1.866.523.5218
10
SLOPE GAUGE
Use this page as a guide in order to identify slopes that cannot be mowed safely.
• DO NOT USE the lawn mower on slopes of more than 15o.
• Sight and hold this edge level with a vertical tree.
• Fold on the dotted line. This represents a slope of 15o.
SIGHT AND HOLD THIS LEVEL WITH A VERTICAL TREE
A POWER POLE
A CORNER OF A BUILDING
OR A FENCE POST
SAVE THESE INSTRUCTIONS!
Safety Information

model no. 060-1790-8 | contact us: 1.866.523.5218
11
Battery & Charger
For the proper use, maintenance and storage of this battery, it is crucially important that
you read and understand the instructions given in this manual.
To avoid serious injury, risk of fire, explosion and danger of electric shock or electrocution:
• DO NOT probe the charger with conductive materials. The charging terminals hold
120 V.
• If the battery pack case is cracked or damaged, DO NOT insert into the charger.
Replace with a new battery pack.
• DO NOT charge these battery packs with any other type of charger.
• DO NOT allow liquid inside the charger.
• DO NOT try to use the charger for any other purpose than what is presented in this
manual.
• DO NOT try to short circuit any terminals of battery pack.
• Do not allow the battery pack or charger to overheat. If they are warm, allow them to
cool down. Recharge only at room temperature.
• Do not cover the ventilation slots on the top of the charger. Do not set the charger on a
soft surface i.e. blanket, pillow. Keep the ventilation slots of the charger clear.
• Do not allow small metal items or material such as steel wool, aluminum foil, or other
foreign particles into the charger cavity.
• Unplug the charger before cleaning and when there is no battery pack in the charger.
• Do not place the battery pack in the sun or in a warm environment. Keep at normal
room temperature.
• Do not try to connect two chargers together.
• Keep in shady, cool and dry condition. If the battery is not charged for a long time,
charge the battery for 30 minutes every 2 months.
• The battery pack cells may develop a small leak under extreme usage or temperature
conditions. If the outer seal is broken and the leakage gets on your skin:
• Use soap and water to wash immediately.
• Neutralize with lemon juice, vinegar, or other mild acid.
• If leakage gets in your eyes, follow instructions above and seek medical attention.
IMPORTANT SAFETY INSTRUCTIONS
• SAVE THESE INSTRUCTIONS. DANGER: TO REDUCE RISK OF FIRE OR ELECTRIC
SHOCK CAREFULLY FOLLOW THESE INSTRUCTIONS.
• Confirm the voltage available at each country location before using the charger.
• If the shape of the plug does not fit the power outlet, use an attachment plug adaptor
of the proper configuration for the power outlet.
!
WARNING: If the battery fluid gets in your eyes, flush
immediately with clean water for at least 15 minutes. Get
immediate medical attention. Do not charge the battery
pack in rain or in wet conditions. Do not immerse the tool,
battery pack, or charger in water or other liquid.

model no. 060-1790-8 | contact us: 1.866.523.5218
12
Battery & Charger
ENVIRONMENTALLY SAFE BATTERY DISPOSAL
Press the battery capacity indicator (BCI) button. The lights will illuminate according to the
battery’s capacity level. See chart below:
• Do not disassemble the battery.
• Keep away from children.
• Do not expose the battery to water or salt water. Battery should be stored in a cool
and dry location.
• Do not place the battery in high-temperature locations, such as near a fire, heater, etc.
• Do not reverse the positive terminal and the negative terminal of the battery.
• Do not connect the positive terminal and the negative terminal of the battery to each
other with any metal objects.
• Do not knock, strike, step on the battery.
• Do not solder directly onto the battery or pierce the battery with nails or other edge
tools.
• In the event that the battery leaks and the fluid gets into one’s eye, do not rub the
eye. Rinse well with water. Immediately discontinue use of the battery, if, while using
the battery it emits an unusual smell, feels hot, changes colour, changes shape, or
appears abnormal in any other way.
• Wipe the outside of the charger with a dry, soft cloth. Do not hose down or wash with
water.
BATTERY CAPACITY
INDICATOR (BCI) BUTTON LIGHT METRE
BATTERY METRE
Lights Capacity
4 Green Lights The battery is at full capacity
The battery is at 70% capacity
The battery is at 45% capacity
The battery is at 10% capacity and
requires charging soon
The battery is under 10% capacity and
requires charging immediately
3 Green Lights
2 Green Lights
1 Green Light
Lights go out
!
WARNING: To avoid risk of fire, electric shock, or
electrocution:
• Do not use a damp cloth or detergent on the battery or
battery charger.
• Always remove the battery pack before cleaning,
inspecting, or performing any maintenance on the tool.

model no. 060-1790-8 | contact us: 1.866.523.5218
13
Battery & Charger
ENVIRONMENTALLY SAFE BATTERY DISPOSAL
The following toxic and corrosive materials are in the batteries used in this tool battery pack:
Li-ion, a toxic material.
To avoid injury and 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 battery pack components.
• DO NOT attempt to open the battery pack.
• If a leak develops, the released electrolytes are corrosive and toxic. DO NOT get the
solution in the eyes or on skin, and do not swallow it.
• DO NOT place these batteries in your regular household trash.
• DO NOT incinerate.
• DO NOT place them where they will become part of any waste landfill or municipal
solid waste stream.
• Take them to a certified recycling or disposal centre.
!
CAUTION: Do not use strong solvents or detergents on the
plastic housing or plastic components. Certain household
cleaners may cause damage and may also cause a shock
hazard.
!
WARNING: All toxic materials must be disposed of in
a specied manner to prevent contamination of the
environment. Before disposing of damaged or worn out
lithium-ion battery packs, contact your local waste disposal
agency, or the local Environmental Protection Agency for
information and specic instructions. Take the batteries to
a local recycling and/or disposal centre, certied for Li-ion
disposal.
!
WARNING: If the battery pack cracks or breaks, with or
without leaks, do not recharge it and do not use. Dispose of
it and replace with a new battery pack. DO NOT ATTEMPT
TO REPAIR IT!

model no. 060-1790-8 | contact us: 1.866.523.5218
14
NOTE: The battery is not shipped fully charged. It is recommended to fully charge it before first
use to ensure that maximum run time can be achieved. This lithium-ion battery will not develop
a memory and may be charged at any time.
1. Plug the charger into an AC power outlet.
2. Insert the battery pack (1) into the charger (2).
This is a diagnostic charger. The Charger LED Lights (3) will illuminate in specific order to
communicate the current battery status. They are as follows:
Battery & Charger

model no. 060-1790-8 | contact us: 1.866.523.5218
15
If the battery pack does not charge properly:
• Check the current at the power outlet with another tool. Make sure that the outlet is not
turned off.
• Check that the charger contacts have not been shorted by debris or foreign material.
• If the surrounding air temperature is not normal room temperature, move the charger and
battery pack to a location where the temperature is between 42.8˚F (6˚C) and 95˚F (35˚C).
For indoor use only
Battery & Charger

model no. 060-1790-8 | contact us: 1.866.523.5218
16
1. This charger can be installed hanging on a wall using two screws (not supplied).
2. Locate the placement for the charger to be wall mounted.
3. If fastening to wood studs use 2 wood screws.
4. Drill two holes 5 3/4” (14.5 cm) on centre line ensuring they are level.
5. If fastening to drywall use wall anchors and screws to secure the charger to the wall.
NOTE: If the battery and the charger won’t be used for a long time, please remove the battery
from the charger and pull out the AC power plug.
Battery & Charger

model no. 060-1790-8 | contact us: 1.866.523.5218
17
Exploded View

model no. 060-1790-8 | contact us: 1.866.523.5218
18
Parts List
Item Description Drawing Qty
1 Upper handle assembly 310021529 1
2 Grass catcher bag assembly 310041529 1
3 Motor cover assembly 310031529 1
4 Lower handle 333021508 2
5 Cam lock assembly 31102467-8 2
6 Knob 34106467-6 2
7 Cord guide 34135469A 2
8 Bolt 3220135 3
9 Self-locking nut 3220537 3
10 Cam lock handle 34102466-8 2
11 Battery 211011324 2
12 Self-locking nut 3221237 2
13 Rear shield 34201470 1
14 Rear baffle 34103470 1
15 Charger 311021324 1
16 7” wheel cap 34203229-15 2
17 Bolt 33201466 1
18 Pin 32901466 2
19 Mulching plug 34104470 1
20 Screw 3220518 2
21 Washer 3290750 2
22 Wire clip 3330490-1 2
23 Blade holder 341041527 1
24 Motor 361011527 1
25 Cam lock cover 34105470-8 2
26 Cam lock base 34106470-6 2
27 Screw 32204113 37
28 Deck 34115495-3 1

model no. 060-1790-8 | contact us: 1.866.523.5218
19
Parts List
Item Description Drawing Qty
29 6” wheel cover 3411799C-11 2
30 Washer 3290605 4
31 6” wheel 34119143-5 2
32 Front wheel axle assembly 33301470-4 1
33 Press board 33307470 4
34 Plate 333021527 1
35 Bolt M10x35 322011179AB 1
36 16” blade 33303488 1
37 Power switch board 362011527 1
38 Torsion spring 33903470 1
39 Rear cover 34102470-2 1
40 Cotter pin 3290135 6
41 Snap ring 3290650 3
42 Front link bar 33303470-1 1
43 Tension spring 33902470 1
44 Height adjustment axle 33201470 1
45 Height adjustment bracket 33305470-1 1
46 Torsion spring 33901470 1
47 Height adjustment lever 33313470-1 1
48 Clip 33306470 2
49 Rear link bar 33304470 1
50 Height adjustment handle 341061508 1
51 Screw 32201470 2
52 7” wheel 31104463-3 2
53 Rear wheel axle 33302470-4 1
54 Rear cover axle 33202470 1
55 Split washer 3290506 2

model no. 060-1790-8 | contact us: 1.866.523.5218
20
Assembly
UNFOLDING AND ADJUSTING THE HANDLE
• Pull up and back the upper handle (1) to raise the handle into operating position. Make
certain the handles snap into place securely.
• Tighten the lower handle with the cam locks (2) on both sides.
• Tighten the upper handle with the cam locks (3) on both sides.
NOTE: Do not completely tighten the wing nuts until
assembly is complete.
2
2
1
3
!