KOBALT KPM 1040B-03 Brushless Push Lawn Mower User Manual

: June 8, 2024
: Kobalt

Table of Contents

KPM 1040B-03 Brushless Push Lawn Mower
PRODUCT SPECIFICATIONS
PACKAGE CONTENTS
**** SAFETY INFORMATION
OPERATION
PREPARATION
TROUBLESHOOTING
WARRANTY
Documents / Resources
- Read User Manual Online (PDF format)
- Download This Manual (PDF format)

ITEM #4132845/3809909
BRUSHLESS
PUSH LAWN MOWER
MODEL #KPM 1040B-03
User Manual

KPM 1040B-03 Brushless Push Lawn Mower

KOBALT and logo design are trademarks or registered trademarks of LF, LLC. All rights reserved.
ATTACH YOUR RECEIPT HERE
Serial Number ———–
Purchase Date ———–
Questions, problems, missing parts? Before returning to your retailer, call our customer service department at 1-888-3KOBALT (1-888-356-2258), 8 a.m. – 8 p.m., EST, Monday – Sunday. You could also contact us at partsplus@lowes.com or visit www.lowespartsplus.com.

PRODUCT SPECIFICATIONS

COMPONENT	SPECIFICATION
Rated voltage	40V d.c.
No-Load speed	2850/min (RPM)
Approximate Cutting-Height setting	1-1/4″ (30mm); 1-9/16″ (40mm);

2-3/16″ (55mm); 2-3/4″ (70mm);
3-5/16″ (85mm); 4″ (100mm)
Deck size| 20” (510mm)
Grass bag volume| 1.7 Bushel (60 L)
Operating temperature| 32°F (0°C) – 104°F (40°C)
Storage temperature| -4°F (-20°C) – 113°F (45°C)

Recommended replacement blade for this lawn mower:

PART NAME	MODEL NUMBER
20” Lawn Mower Blade	KLMB 124-03

PACKAGE CONTENTS

KOBALT KPM 1040B-03 Brushless Push Lawn Mower - PACKAGE
CONTENTS

PART	DESCRIPTION	PART	DESCRIPTION
A	Bail switch (switch lever)	K	Support frame with holes
B	Handle	L	Handle-adjustment knob
C	Safety button	M	Side rail
D	Handle-locking clamp (2)	N	Rear-discharge door
E	Lift handle	O	Trailing shield
F	Power Indicator	P	Cutting-height adjustment lever
G	Battery-compartment cover	Q	Side-discharge door
H	Front wheel	R	Side-discharge chute
I	Mower deck	S	Mulching insert
J	Rear wheel	T	Grass bag

Safety Button
The safety button must be pressed down before the motor can be started.
Bail Switch
The bail switch is located on the upper handle of the mower. The switch engages and disengages the motor/ blade.
WARNING
• The bail switch and the safety button are safety devices. Never attempt to bypass their operations.
Handle-Locking Clamp
Locks/unlocks the side rails in the extended or the recessed position.
Side Rails
Can be extended and locked for operation or recessed for storage.
Handle-adjustment knob
Locks/unlocks the handle position when adjusting the angle of the mower handle:

Locked Storage Position
Upper Operating Position
Middle Operating Position
Lower Operating Position

PACKAGE CONTENTS
Trailing Shield & Rear Discharge Door
The trailing shield is designed to minimize the possibility of stones or other objects being thrown backward by the mower blade. The shield and the rear discharge door minimize the possibility of accidental foot contact with the blade. DO NOT operate the mower without the trailing shield and rear discharge door in place.
Spring-Loaded Cutting-Height Adjustment Lever
One-handed cutting-height adjustment.
WARNING

Remove the tool from the package and examine it carefully. Do not discard the carton or any packaging material until all parts have been examined.
If any part of the tool is missing or damaged, do not attach the battery to use the tool until the part has been repaired or replaced. Failure to heed this warning could result in serious injury.

**** SAFETY INFORMATION

Please read and understand this entire manual before attempting to assemble or operate this product. If you have any questions regarding the product, please call customer service at 1-888-3KOBALT (1-888-356-2258), 8 a.m. – 8 p.m., EST, Monday – Sunday. You could also contact us at partsplus@lowes.com or visit www.lowespartsplus.com.
WARNING

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 a full-face shield, when needed. We recommend using a wide vision safety mask over eyeglasses or standard safety glasses with shields. Always use eye protection marked to comply with ANSI Z87.1.
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, cement, and other masonry products
– Arsenic and chromium from chemically-treated lumber
Your risk from these exposures varies, depending upon how often you do this type of work.
To reduce your exposure to these chemicals:
– Work in a well-ventilated area.
– Work with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.
– Avoid prolonged contact with dust from power sanding, sawing, grinding, drilling, and other construction activities. Wear protective clothing and wash exposed areas with soap and water. Allowing dust to get into your mouth or eyes or to lie on the skin may promote absorption of harmful chemicals.

Know the Tool
To operate this tool, carefully read this manual and all labels affixed to the tool before using it.
Keep this manual available for future reference.
Important
This tool should be serviced only by a qualified service technician.
Read All Instructions Thoroughly
Some of the following symbols may be used on this tool. Please study them and their meaning.
Proper interpretation of these symbols will allow you to operate the tool better and more safely.

SYMBOL	DEFINITION
V	Volts
Direct Current
RPM	Revolutions per Minute
A danger, warning, or caution. It means

IMPORTANT SAFETY INSTRUCTIONS
DANGER

This machine was built to be operated according to the rules for safe operation included 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 machine is capable of amputating hands and feet and throwing objects. Failure to observe all safety instructions could result in serious injury or death.

WARNING:

When using electric lawn mowers, basic safety precautions should always be followed to reduce the risk of fire, electric shock, and personal injury. These basic precautions include the following:

CHILDREN
• Tragic accidents can occur if the operator is not alert to the presence of children. Children are often attracted to the mower and mowing activity. They do not understand the dangers. Never assume that children will remain where you last saw them.

SAFETY INFORMATION

Keep children out of the mowing area and under the watchful care of a responsible adult other than the operator.
Be alert and turn the mower off if a child enters the area.
Use extreme care when approaching blind corners, doorways, shrubs, trees, or other objects that may obscure your vision of a child who may run into the mower.
Never allow children under 14 years old to operate a power mower. Children 14 years old and over should read and understand the operation instructions and safety rules in this manual and should be trained and supervised by a parent. Only responsible individuals who are familiar with these rules of safe operation should be allowed to use this machine.

OPERATION

GENERAL OPERATION:

Read this operator’s manual carefully in its entirety before attempting to assemble this machine. Read, understand, and follow all instructions on the machine and in the manual before operation. Be completely familiar with the controls and proper use of this machine before operating it. Keep this manual in a safe place for future and regular reference, and for ordering replacement parts.
Use the right appliance – Do not use the lawn mower for any job except that for which it is intended. Your lawn mower has been designed to perform only one job: to mow grass.
Don’t overreach – Keep proper footing and balance at all times.
Objects struck by the lawn mower blade can cause severe injuries to persons. The lawn should always be carefully examined and cleared of all objects prior to each mowing.
Keep the area of operation clear of all persons, particularly small children, and pets.
Before and while moving backwards with the mower, look behind and down for small children and other people.
Keep clear of the discharge opening at all times.
This machine is a precise piece of power equipment, not a plaything. Therefore, exercise extreme caution at all times. Your unit has been designed to perform one job: to mow grass. Do not use it for any other purpose.
Don’t force the lawn mower – it will do the job better and more safely at the rate for which it was designed.
Thoroughly inspect the area where the equipment is to be used. Remove all stones, sticks, wire, toys and other foreign objects that could be tripped over or picked up and thrown by the blade. Thrown objects can cause serious personal injury.
Plan your mowing pattern to avoid discharge of material toward roads, sidewalks, bystanders and the like. Also, avoid discharging material against walls or obstructions, which may cause discharged material to ricochet back toward the operator.
To help avoid blade contact or an injury from thrown objects, stay in the operator zone behind the handles and keep children, bystanders, helpers, and pets at least 100 feet (30m) from the mower while it is in operation. Stop the machine if anyone enters the area.
To protect your eyes, always wear safety glasses or safety goggles during operation and while performing an adjustment or repair. Thrown objects that ricochet can cause serious injury to the eyes. Always use a face or dust mask if the operation is dusty.
Dress properly – Do not wear loose clothing or jewelry. They can be caught in moving parts. Use of rubber gloves and footwear is recommended when working outdoors. Wear sturdy, rough-soled work shoes and close-fitting slacks and shirts. Shirts and pants that cover the arms and legs and steel-toed shoes are recommended. Never operate this machine in bare feet, sandals, slippery or lightweight (e.g., canvas) shoes.
Do not put hands or feet near rotating parts or under the cutting deck. Contact with the blade can amputate hands and feet.
A missing or damaged discharge cover can cause blade contact or injuries from thrown objects.
Many injuries occur as a result of the mower being pulled over the foot during a fall caused by slipping or tripping. Do not hold onto the mower if you are falling; immediately release the handle.
Never pull the mower back toward you while you are walking. If you must back the mower away from a wall or obstruction, first look down and behind you to avoid tripping, and then follow these steps:
– Step back from mower to fully extend your arms.
– Be sure you are well balanced with sure footing.
– Pull the mower back slowly, no more than halfway toward you.
– Repeat these steps as needed.
Do not operate the mower while under the influence of alcohol or drugs.
Stay alert – watch what you are doing. Use common sense. Do not operate the lawn mower when you are tired.
The motor/blade control handle is a safety device. Never attempt to bypass its operation. Doing so makes the safety device inoperative and may result in personal injury through contact with the rotating blade. The motor/blade control handle must operate easily in both directions and automatically return to the disengaged position when released.
Avoid dangerous environments – Don’t use lawn mowers in damp or wet locations so as to avoid slipping and falling during operation.
Always be sure of your footing. A slip and fall can cause serious personal injury. If you feel you are losing your footing, release the motor/blade control handle immediately and the blade will stop rotating within three seconds.
Mow only in daylight or good artificial light. Walk, never run while operating.
Stop the blade when crossing gravel drives, walks or roads.
If the equipment should start to vibrate abnormally, immediately stop the motor, remove the battery and check for the cause. Vibration is generally a warning of trouble.
Before cleaning the machine, unclogging the chute or removing or replacing the grass bag, mulching insert, or side-discharge chute, turn the motor off and wait until the blade comes to a complete stop, then remove the battery pack. The cutting blade continues to rotate for a few seconds after the motor is shut off.
Never place any part of the body in the blade area until you are sure the blade has stopped rotating.
Never operate the mower without the proper trailing shield, discharge cover, grass bag, mulching insert, side-discharge chute, motor/blade control handle or other safety protective devices in place and working. Never operate the mower with damaged safety devices.
Failure to do so can result in personal injury.
If situations occur that are not covered in this manual, use care and good judgment. Contact customer service.
Use only with the battery packs and chargers listed below:
BATTERY PACK| CHARGER
---|---
KB 240-03; KB 440-03; KB 640-03| KRC 840-03
Don’t Use In Rain.
Use identical replacement blades only.
Prevent unintentional starting. Ensure the switch is in the off-position before connecting to battery pack, picking up or carrying the appliance. Carrying the appliance with your finger on the switch or energizing appliance that have the switch on invites accidents.
Avoid holes, ruts, bumps, rocks, or other hidden hazards. Uneven terrain could overturn the machine, or cause operator lose their balance or footing.
Do not operate machine under any condition where traction, steering, or stability is in question. Tires could slide even if the wheels are stopped.
Avoid starting and stopping on slopes, avoid making sudden changes in speed or direction.
Make turns slowly and gradually.
Use extra care while operating machine with a grass catcher or other attachment(s). They can affect the stability of the machine.

OPERATION ON A SLOPE:
Slopes are a major factor related to slip-and-fall accidents, which can result in severe injury.
Operation on slopes requires extra caution. If you feel uneasy on a slope, do not mow it. For your safety, use the slope gauge on page 19 to measure slopes before operating this unit on a sloped or hilly area. If the slope is greater than 15 degrees, do not mow it.
Do:

Mow across the face of slopes; never mow up and down. Exercise extreme caution when changing direction on slopes.
Watch for holes, ruts, rocks, hidden objects, or bumps which can cause you to slip or trip. Tall grass can hide obstacles.

Do not:

Do not mow near drop-offs, ditches or embankments; you could lose your footing or balance.
Do not mow slopes greater than 15 degrees, as shown on the slope gauge.
Do not mow on wet grass. Unstable footing could cause slipping.

SERVICE
WARNING

Grass bag components, the discharge cover, side-discharge chute, mulching insert and trailing shield are subject to wear and damage, which could expose moving parts or allow objects to be thrown and could increase the risk of injury. For safety protection, frequently check all components and replace damaged components immediately with identical replacement parts, listed in this manual.
Do not wash the mower with a hose; avoid getting water in the motor and electrical connections.
Remove the battery and store the idle lawn mower in a covered area when not in use. Allow the motor to cool before storing it in any enclosure. The lawn mower should be stored in a dry, high, or locked-up enclosure, out of reach of children.
When servicing, use only identical replacement parts listed in this manual. Use of parts that do not meet the original equipment specifications may lead to improper performance and compromised safety.
Remove or disconnect the battery pack before servicing, cleaning, or removing material from the lawn mower.
Follow instructions for lubricating and changing accessories.
Keep handles dry, clean and free from oil and grease.
To reduce a fire hazard, keep the motor cover free of grass, leaves, and debris build-up.
Check the blade and motor mounting bolts at frequent intervals for proper tightness. Also, visually inspect the blade for damage (e.g., bending, cracking and wear). Replace the blade only with the identical replacement blade, as listed in this manual.
Maintain your mower with care – keep the mower blade sharp and clean for the best and safest performance. Mower blades are sharp and can cut. Wrap the blade or wear gloves and use extra caution when servicing it.
Keep all nuts, bolts, and screws tight to be sure the equipment is in safe working condition.
Never remove or tamper with safety devices. Regularly check their proper operation.
Never do anything to interfere with the intended function of a safety device or to reduce the protection provided by a safety device.
Always stop the motor before making adjustments to a wheel or a cutting-height adjustment.

SAFETY INFORMATION

After striking a foreign object, stop the motor, remove the battery pack, allow the blade to stop rotating, and thoroughly inspect the mower for any damage. Repair the damage before operating the mower.
Maintain or replace safety and instruction labels, as necessary.
Do not incinerate the appliance even if it is severely damaged. The batteries can explode in a fire. Recharge only with the charger specified by the manufacturer. A charger that is suitable for one type of battery pack may create a risk of fire when used with another battery pack.
Use appliances only with specifically designated battery packs. Use of any other battery packs may create a risk of injury and fire.
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 burns or a fire.
Under abusive conditions, liquid may be ejected from the battery; avoid contact. If contact accidentally occurs, flush with water. If liquid contacts eyes, additionally seek medical help. Liquid ejected from the battery may cause irritation or burns.
Do not use a battery pack or appliance that is damaged or modified. Damaged or modified batteries may exhibit unpredictable behavior resulting in fire, explosion or risk of injury.
Do not expose a battery pack or tool to fire or excessive temperature. Exposure to fire or temperature above 212 °F (100°C) may cause explosion.
Follow all charging instructions and do not charge the battery pack or appliance outside of the temperature range specified in the instructions. Charging improperly or at temperatures outside of the specified range may damage the battery and increase the risk of fire.
Disconnect the battery pack from the appliance before making any adjustments, changing accessories, or storing appliance. Such preventive safety measures reduce the risk of starting the appliance accidentally.
Have servicing performed by a qualified repair person using only identical replacement parts. This will ensure that the safety of the product is maintained.
Do not modify or attempt to repair the appliance or the battery pack (as applicable) except as indicated in the instructions for use and care.
SAVE THESE INSTRUCTIONS. Refer to them frequently and use them to instruct others who may use this tool. If you lend this tool to someone else, also lend these instructions to them to prevent misuse of the product and possible injury.

PREPARATION

Know Your Mower
This mower can only be used for grass mowing. Before attempting to use the mower, familiarize yourself with all of its operating features and safety requirements.
WARNING

Do not allow familiarity with the mower to cause carelessness. Remember that one careless moment is enough to cause severe injury. Before attempting to use any tool, be sure to become familiar with all of the operating features and safety instructions.
Do not attempt to modify this tool or create accessories not recommended for use with this tool. Any such alteration or modification is misuse and could result in a hazardous condition leading to possible serious personal injury.

UNPACKING

Grasp the lift-handle (E) to carefully lift the mower up and out of the carton.

ASSEMBLY
WARNING

To prevent accidental starting that could cause serious personal injury, always remove the battery pack from the tool when assembling parts.
Do not use any attachments or accessories not recommended by the manufacturer of this product. The use of attachments or accessories not recommended can result in serious personal injury.

Assembling the Grass Bag
a. Check the grass bag before assembling to make sure that there is no damage.
b. Slide the grass bag onto the frame, as shown in Fig. 1a.
c. Assemble the top clips to the frame, then assemble the two side clips. Assemble the bottom clip last.
d. The completely assembled grass bag is shown in Fig. 1b.|
---|---
Adjusting the Foldable Handle
WARNING
• Do not attempt to start the mower until the handle has been locked at one of the three preset operating positions. Locked Storage Position
Your mower is shipped with the handle in the compact, locked position (Fig. 2a).
Operating Position
The mower handle can be set in one of the three operating positions: UPPER, MIDDLE, or LOWER (Fig. 2b) a. Pull the two handle-adjustment knobs (L) outward while turning them 90° counterclockwise or clockwise to the unlocked position (Fig. 2c).
b. Lift the handle with one hand, then gently pivot the handle to select one of the desired operating positions – Upper, Middle, or Lower. (Fig. 2d)
NOTICE: Taller users may prefer the upper operating position.

|
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c. Turn the two handle-adjustment knobs back to the locked position (Fig. 2c) and make sure that the lock pin has been engaged in the desired operating position.
d. Open the two handle-locking clamps (D) and fully extend the side rails (M). Securely close the two handle-locking clamps. (Fig. 2e) NOTICE: The motor cannot be started unless:
• The side rails are fully extended.
• Both handle-locking clamps are securely closed.
• The handle is locked into one of the three operating positions.

Attaching/Removing the Grass Bag
WARNING
• Do not at any time make any adjustment to the lawn mower without first stopping the motor, removing the battery pack, and waiting for the blade to stop rotating. NOTICE: Remove the mulching insert or sidedischarge chute before attaching the grass bag on the mower.
a. Remove the battery.
b. Set the handle to the Locked Storage Position (please see Adjusting the Foldable Handle ).
c. Lift the rear-discharge door (N).
d. Remove the mulching insert (S).
e. Hook the grass bag assembly (T) on the pivot rod. Release the discharge door so that it rests on the grass bag.
To Remove the Grass Bag
a. Lift the rear-discharge door (N) on the mower. Take the grass bag (T) off of the pivot rod.
b. Release the discharge door.
WARNING
• When using the grass bag, never operate the mower unless the hooks on the grass bag are firmly seated on the pivot rod and the rear-discharge door rests firmly against the top of the grass bag.
• Under normal usage, bag material is subject to wear. To reduce the risk of injury, frequently inspect the bag assembly and replace it if there are any signs of wear or deterioration. Use only grass bags manufactured for this mower.
Attaching/Removing the Mulching Insert
WARNING
• Do not at any time make any adjustment to the lawn mower without first stopping the motor, removing the battery pack, and waiting for the blade to stop rotating.
a. Remove the battery.
b. Lift the rear-discharge door (N).
c. Grasp the handle of the mulching insert (S) and fully insert it into the mower so that it is securely seated.
d. Release the rear-discharge door and make sure that it rests firmly against the mulching insert.
e. To remove the mulching insert, lift the rear-discharge door, grasp the handle of the mulching insert, and pull the mulching insert out.
NOTICE: The mulching insert must be removed in order to install and use the grass bag and must be re-installed when the grass bag is removed.
Attaching/Removing the Side-Discharge Chute
WARNING
• Do not at any time make any adjustment to the lawn mower without first stopping the motor, removing the battery pack, and waiting for the blade to stop rotating.
a. Remove the battery.
b. Lift the side-discharge door (Q).
c. Align the holes of the side-discharge chute (R) with the protrusions of the doorsill. Release the side-discharge door and make sure that it locks firmly against the side- discharge chute.
d. To remove the side-discharge chute, lift the side-discharge door, grasp the side-discharge chute and pull it out.
Cutting-Height Adjustment
WARNING
• Do not at any time make any adjustment to the lawn mower without first stopping the motor, removing the battery pack, and waiting for the blade to stop rotating.
• Keep your feet away from the deck when adjusting its height. The mower can be set to any of 6 cutting heights between 1-3/16″ (30mm) and 4″ (100mm). Choose the proper cutting height according to the type and condition of the grass.
a. Grasp the height-adjustment lever (P) and move it outwards.
b. Move the lever toward the back or the front of the mower and engage the lever in the desired cutting-height position on the mower deck.
WARNING
• 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.
• Do not use any attachments or accessories not recommended by the manufacturer of this product. The use of attachments or accessories not recommended can result in serious personal injury.
To Attach/Detach Battery Pack
a. Open the hinged battery-compartment cover (G) by lifting the front of the cover.
b. Align the grooves in battery pack with the raised ribs in the mower’s battery compartment. Then insert the battery pack into compartment.
c. Push the battery pack until you hear a “click”.
It indicates that the battery pack is securely attached. NOTICE: Make sure that the latch on the battery pack snaps into place and that the battery pack is secured to the mower before starting operation.
d. To detach the battery pack, depress the battery-release button to release the battery pack, and then lift it out of the compartment.
e. Close the battery-compartment cover (G).
WARNING
• Battery tools are always in operating condition. Therefore, always remove the battery pack when the tool is not in use.
Power Indicator on the Mower
The mower is equipped with a power indicator (F) to display the charge level of the battery and the working status of the mower as follows. The power indicator will illuminate when the blade is rotating. BATTERY PACK CHARGE LEVEL| POWER INDICATOR ON THE MOWER
---|---
≥70%|
45%-70%|
10%-45%|
<10%|

= Solid light, = Flashing light, = Light is off
Mower-Overload Protection
To prevent overload conditions, do not try to cut too much grass at one time. Slow your cutting pace or raise the cutting height.
Your mower has built-in overload circuit protection. When the mower is overloaded, the motor will stop and the power indicator on the mower will be off. Remove the battery pack from the mower. Check to see if grass has accumulated beneath the deck and clear it, if necessary, then install the battery pack and restart the mower.
Battery High-Temperature Protection
The battery pack will generate heat during operation. The heat dissipates more slowly in hot weather. If the battery becomes overheated during operation, the protection circuit will immediately turn off the mower to protect the battery pack from heat damage. Release the bail switch (A), wait for the battery pack to cool down, then restart the mower.

To Start/Stop the Mower
WARNING
• The operation of any lawn mower can result in foreign objects being thrown into your or others’ eyes, which can damage eyes severely. Always wear safety glasses while operating the mower or while performing any adjustments or repairs on the mower.• Ensure that other people and pets remain at least 100 feet (30m) away from the mower when it is in use.
• The blade will continue to rotate for a few seconds after the mower is turned off. Allow the motor/blade to stop rotating before starting it again. Do not rapidly turn the mower off and on.
CAUTION
• Do not attempt to override the operation of the safety button (C) and bail switch (A).
NOTICE: The motor cannot be started unless:
• The side rails (M) are fully extended.
• Both handle-locking clamps (D) are securely closed.
• The handle (B) is locked into one of the three operating positions.
To start the mower
a. Attach the KOBALT battery pack to the mower and close the battery- compartment cover (G).
b. Depress the safety button (C).
c. With the safety button depressed, pull the bail switch (A) upward to meet the handle and release the safety button.
d. The mower will start.
To stop the mower
a. Fully release the bail switch (A).
b. The electric brake will stop the blade rotation within 3 seconds of the bail switch release.
Mowing Tips
NOTICE: A sharp blade will greatly enhance the performance of the mower, especially when cutting tall grass. Make sure to check the sharpness of the blade before mowing.
• Verify that the lawn is free of stones, sticks, wires, and other objects which could damage the lawn mower or motor. Such objects could be accidentally thrown by the mower in any direction and could cause serious personal injury to the operator and to others.
WARNING
• If you strike a foreign object, stop the motor and remove the battery pack. Thoroughly inspect the mower for any damage and repair the damage before restarting and operating the mower. Excessive vibration of the mower during operation is an indication of damage.
The unit should be promptly inspected and repaired.
• For best results, do not mow in circles. Travel back and forth across the lawn.
• When cutting thick grass, reduce your walking speed in order to allow for a more effective cut and a proper discharge of the clippings.
• To maintain a healthy lawn, cut off only one-third or less of the total length of the grass.
The average lawn should be approximately 1-1/2 to 2 inches (38 – 50 mm) long during cool months, and between 2 to 3-1/4 inches (50 – 83 mm) long during hot months.
Slope Gauge (Fig. 10)
WARNING
• Do not mow a slope that has an angle of greater than 15° (a rise of approximately 2-1/2 feet (0.75 m) every 10 feet (3 m)). Mow across the face of a slope and never up and down.
Use Fig. 10 as a guide in order to identify slopes that cannot be mowed safely.
Mulching Tips
WARNING
• Inspect the area where the mower is to be used and remove all stones, sticks, wire and other debris that might be thrown by the rotating blade.
• Release the switch to turn off the mower blade rotation when crossing any graveled areas; stones can be thrown by a rotating blade.
• Set the mower to the highest cutting height when mowing on uneven ground or in tall growth.
• For effective mulching, do not cut wet grass; it tends to stick to the underside of the deck, preventing the proper mulching of grass clippings. The best time to mow grass is in the late afternoon, when the grass is dry and the newly cut area will not be exposed to direct sunlight.
• For the best mulching performance, set the cutting height to remove approximately one third of the grass-blade length, ideally no more than 1-1/2″ (38mm) at one time. If the grass is overgrown, it may be necessary to increase the cut height to make it easier to mow and to prevent overloading the motor. Slow your cutting pace in tall or thick grass conditions.
For mulching extremely thick or tall grass, it is advisable to first cut at a high cutting-height setting, and then re-cut to the final cut height. Otherwise, make narrower cuts and mow slowly. ALWAYS MAKE SURE THAT THE BLADE IS SHARP.
CARE AND MAINTENANCE
WARNING
• All maintenance should only be carried out by a qualified service technician.
• Before cleaning or performing any maintenance, remove the battery pack. For safe and proper operation, always keep the tool and its ventilation slots clean.
• When servicing, use only identical replacement parts. Use of any other parts may create a hazard or cause product damage.
• Always wear safety goggles or safety glasses with side shields during power tool operation or when blowing dust. If the operation is dusty, also wear a dust mask.
• Do not at any time let brake fluids, gasoline, petroleum-based products, penetrating oils, etc. come in contact with plastic parts. Chemicals can damage, weaken, or destroy plastic, which may result in serious personal injury.
Cleaning
WARNING
• Always remove the battery pack when servicing or transporting the mower.
• When cleaning the mower, DO NOT immerse in water or other liquids.
The underside of mower deck should be cleaned after each use, as grass clippings, leaves, dirt and other debris will accumulate. This accumulation is undesirable, as it will promote rust and corrosion.
Remove any build-up of grass and leaves on or around the drive shaft and motor fan (do not use water). Wipe the mower clean with a damp cloth.
Lubrication
Lubricate with light oil as directed below at least once each mowing season.
• To prevent rusting, periodically lubricate the following parts with light oil:
a. the lock pin of the handle-adjustment knob
b. the torsion spring and pivot rod of the rear-discharge door
• Place the mower into the locked storage position, place the folded mower upright on the ground.
a. Lubricate the deck-height adjustment joint.
b. Lubricate the bearings in the front wheels and rear wheels.
Removing the Blade
WARNING
• Always remove the battery pack when servicing or transporting the mower.
• Always protect your hands by wearing heavy gloves or wrapping the cutting edges with rags or other materials when performing any maintenance on the mower blade.
NOTICE: The following tools are required (not included) for replacing the blade:
• 9/16″ (14mm) wrench
• Torque wrench
• Manual screwdriver or metal rod with a diameter of 5/16″ (8mm)
• Manual screwdriver or metal rod with a diameter of 1/4″ (6.35mm) or less
a. Stop the motor and remove the battery pack from the mower.
b. Turn the mower on its side.
c. While wearing protective gloves, place a metal rod (e.g., a 3.5″-long screwdriver) with diameter
a little under 5/16″ (8mm) into the fixing hole to act as a stabilizer.
d. Use a 9/16-inch (14mm) wrench to turn the blade bolt counterclockwise to loosen it (Fig.14a).
e. While wearing protective gloves, remove the bolt, outer flange, and the blade (Fig. 14b).
Installing the Blade
WARNING
• Always remove the battery pack when servicing or transporting the mower.
• Always protect your hands by wearing heavy gloves or wrapping the cutting edges with rags or other materials when performing any maintenance on the mower blade. NOTICE: To re-install or replace the blade, be sure to replace the parts in the exact order in which they were removed.
a. Mount the fan onto the motor shaft with the fan blades towards the deck.
b. While wearing protective gloves, position the blade on the inner flange with the surface stating “THIS SIDE FACING GRASS” facing toward the outside.
c. Align the outer flange with the shaft and assemble it in place.
d. Mount the bolt into the shaft and turn it clockwise by hand to re-tighten it.
e. While still wearing protective gloves, hold the blade with one hand and turn the fan with the other hand to align the holes in the blade with the through holes in the inner flange (Fig.15a).f. Place a metal rod (e.g., a 3.5″-long screwdriver) with diameter a little under 1/4 inch (6.35mm) into the aligned holes to act as a stabilizer 1. Place another metal rod (e.g., a 3.5″-long screwdriver) with diameter a little under 5/16″ (8mm) into the fixing hole to act as another stabilizer 2 (Fig. 15b).
g. Use a 9/16-inch (14mm) torque wrench (not included) to tighten the bolt clockwise. The recommended torque for the blade bolt is 36-43 ft-lb (49-59Nm).
Sharpening the Blade
WARNING
• Always remove the battery pack when servicing or transporting the mower.
• Always protect your hands by wearing heavy gloves or wrapping the cutting edges with rags or other materials when performing any maintenance on the mower blade.
• Use proper eye protection while removing, sharpening, and installing the blade.
• A worn, cracked, or damaged blade can break, and pieces of the damaged blade can become dangerous projectiles. Thrown objects can cause serious injury. Inspect the blade regularly and do not operate the mower with a worn or damaged blade. NOTICE: Keep the blade sharp for best mower performance. A dull blade does not cut grass cleanly or mulch properly. A dull blade can be sharpened, but a blade that is excessively worn, bent, cracked, or otherwise damaged must be replaced. A worn or damaged blade can break, causing blade pieces to be thrown from the mower.
If the blade is found to be bent, replace it. Sharpening Frequency
Sharpening the blade twice during a mowing season is usually sufficient under normal circumstances. Sand causes the blade to dull quickly; if your lawn has sandy soil, more frequent sharpening may be required.
When Sharpening the Blade:
• Make sure that the blade remains balanced.
• Sharpen the blade at the original cutting angle.
• Sharpen the cutting edges on both ends of the blade, removing an equal amount of material from each end.
To Sharpen Blade in a Vise (Fig. 16a):
a. Remove the blade from the mower.
b. Secure the blade in a vise.
c. Wear proper eye protection and gloves and be careful not to cut yourself.
d. Carefully file the cutting edges of the blade with a fine-tooth file or sharpening stone, maintaining the original cutting edge angle.
To check the blade balance (Fig. 16b):
Clamp a nail or a screwdriver with a round shank in the horizontal position. Position the blade so that the nail or round shank of the screwdriver supports the blade through its center hole. Balance the blade horizontally. If either end of the blade rotates downward, remove some metal from the heavier (or lower) end until the blade is balanced. It is balanced when neither end drops.
WARNING
• An unbalanced blade will cause excessive vibration when rotating at high speeds. It may cause damage to the mower and could break, causing personal injury.
Replacing the Wheels
WARNING
• Always remove the battery pack when servicing or transporting the mower. We recommend having this task carried out by an after-sales service provider. To remove the wheels:
a. Turn the mower on its side with the upper surface against a wall.
b. Use a flat blade screwdriver to pry the dust cover away from the wheel.
c. Use an adjustable or ½-inch (13mm) wrench to turn the bolt counterclockwise to loosen it.
d. For front wheels: remove the bolt, the worn wheel, the wave washer, and flat washer from the wheel axle (Fig. 17a).
e. For rear wheels: remove the bolt, the worn wheel, the wave washer from the wheel axle (Fig. 17b). To mount the wheels:
a. For front wheels: mount the flat washer, the wave washer and the new wheel on the wheel axle. Note that the round recess of the wheel must face outward (Fig. 17a).
b. For rear wheels: mount the wave washer and the new wheel on the wheel axle. Note that the round recess of the wheel must face outward (Fig. 17b).
c. Secure the wheel with the bolt by tightening the bolt clockwise.
d. Mount the dust cover onto the wheel and press it into place.
Replacing the Trailing Shield (Fig. 18)
WARNING
• Always remove the battery pack when servicing or transporting the mower.
• Never operate the mower unless the trailing shield is in place and working. Never operate the mower with damaged safety devices. Failure to do so can result in personal injury. The trailing shield is subject to wear and damage, which could expose moving parts or allow objects to be thrown. For safety protection, frequently check the trailing shield and replace it immediately with only the identical replacement part, listed in this manual. We recommend having this task carried out by an after-sales service provider.a. Remove the battery pack.
b. Turn the mower on its side with the upper surface against a wall.
c. Remove the rear wheel on the top side, following the section “Replacing the Wheels” in this manual.
d. Repeat steps “a” through “c” above to remove the other rear wheel.
e. Loosen the locking screws for the trailing shield on both sides; remove the worn trailing shield (O).
f. Replace with a new trailing shield and attach it with the two locking screws and flat washers.
g. Re-install the rear wheels; be sure to replace the parts in the exact order in which they were removed.
Transporting and Storing the Mower (Fig.19a & 19b)
• Do not store or transport the mower when it is running. Always remove the battery pack before storing or transporting.
• Before storing, clean the mower thoroughly as directed. Lubricate the mower as directed.
• Inspect the blade and replace it or sharpen it, if required.• Store the mower at room temperature in a dry, clean location that is locked and/or inaccessible to children.
• Keep away from corrosive agents such as garden chemicals and de-icing salts.
• Do not cover the lawn mower with a solid, plastic sheet. Plastic coverings trap moisture around the mower, which causes rust and corrosion.
• Use the lift-handle (E) to lift the mower.
The handle can be folded down completely for storage:
a. Remove the grass bag.
b. Move the cutting-height-adjustment lever (P) toward the front and engage it in the lowest setting (setting 1).
c. Open the handle-locking clamps (D) and fully recess the side rails (M) to the compact position.d. Pull the two handle-adjustment knobs (L)outward while turning them 90° counterclockwise or clockwise to the unlocked position.
e. Gently pivot the handle all the way toward the front of the mower.
f. Turn both handle-adjustment knobs (L) 90° and make sure the lock pins engage in the locked storage position.
g. Store the mower in flat (recommended) or upright position.
WARNING
• If the mower tips over from the upright position, mower damage or personal injury may result. Always keep the mower stable and out of the reach of children when it is in the upright position. If possible, lay it flat for storage.

TROUBLESHOOTING

WARNING
• Turn the mower off, remove the battery pack and wait for the blade to come to complete stop before performing troubleshooting procedures.

PROBLEM	POSSIBLE CAUSE	CORRECTIVE ACTION
Tool does not work.	1. Low battery capacity.	1. Charge the battery pack.

2. The side rails are not extended to their full length and the clamps are not locked in position.| 2. Fully extend the handle and lock both clamps.
3. Battery pack overheating| 3. Wait for the battery pack to cool down and try starting the mower again.
The mower cuts unevenly| 1. Dull blade.| 1. Sharpen or replace the blade.
2. The blade is assembled incorrectly.| 2. Reassemble the blade, following the section “Installing the Blade” in this manual.
The mower does not mulch properly| 1. Wet grass clippings are sticking to the underside of the deck.| 1. Wait until the grass dries before mowing.
2. The mower is set to cut too much grass at once.| 2. Raise the deck to a higher cutting height setting.
The far left Power Indicator light flashes| Low battery capacity.| Charge the battery pack.
All three Power Indicator lights are off| Motor overheating or Battery/tool overload, tool has stopped working in order to protect internal circuits.| Wait for the tool/battery to cool down, remove and reinstall the battery pack, and try starting the mower again.
Battery pack is depleted.| Charge the battery pack.

WARRANTY

For 5 years from the date of purchase, this product is warranted for the original purchaser to be free from defects in material and workmanship. This guarantee does not cover damage due to abuse, normal wear, improper maintenance, neglect, unauthorized repair/alteration, or expendable parts and accessories expected to become unusable after a reasonable period of use. This warranty is limited to 90 days for commercial and rental use.
If you think your product meets the above guarantee criteria, please return it to the place of purchase with valid proof of purchase and the defective product will be repaired or replaced at no charge. This guarantee gives you specific legal rights, and you may also have other rights that vary from state to state.

L G SOURCING, INC. MOORESVILLE, NC 28117
Printed in China

Documents / Resources

| KOBALT KPM 1040B-03 Brushless Push Lawn Mower [pdf] User Manual
KPM 1040B-03, Brushless Push Lawn Mower, Push Lawn Mower, Brushless Lawn Mower, Lawn Mower, Mower
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