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LawnMaster 13" 24V MAX Lithium-Ion Cordless Mower CLM2413A

Operator's Manual

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* Maximum initial battery workload voltage (measured without a workload) is 24 volts. Nominal voltage is 21.6 volts.

Specifications

24V MAX* CORDLESS MOWER

TypeCordless, Battery-powered
No-load Speed3700 RPM
Deck Width13.15" (334 mm)
Cutting Width12.44" (316 mm)
Height Adjustments5 Positions (1"-2.55") (25-65 mm)
Wheel Size5.51" (140 mm) / 5.51" (140 mm)
Unit Weight (With 4.0Ah Battery)23.15 lbs (10.5 kg)

BATTERY PACK

Model Number24LB4005-C
Rated Voltage of Battery24 V Max* D.C.
Capacity of Battery4.0 Ah
Battery TypeLithium-ion

BATTERY CHARGER

Model Number24LFC14-ETL
Charger Input120 V~60 Hz 70 W
Charger Output24 V D.C. 2.5 A
Charging Time100 minutes (For 24LB4005-C)

* Maximum initial battery workload voltage (measured without a workload) is 24 volts. Nominal voltage is 21.6 volts.

Important Safety Instructions

Introduction

This product has many features for making its use more pleasant and enjoyable. Safety, performance, and dependability have been given top priority in the design of this product, making it easy to maintain and operate.

! 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.

! WARNING Use of this mower should 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.

Training and Preparation

Operation

Maintenance and Storage

Battery Pack

Battery Charger

FCC Compliance

SAVE THESE INSTRUCTIONS

Refer to them frequently and use them to instruct others who may use this appliance. If you loan someone this appliance, loan them these instructions also.

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.

SYMBOLNAMEDESIGNATION/EXPLANATION
VVoltsVoltage
---Direct CurrentType or a characteristic of current
AAmperesCurrent
HzHertzFrequency (cycles per second)
WWattsPower
hrsHoursTime
□Class II ConstructionDouble-insulated construction
!Safety AlertPrecautions that involve your safety.
Read the Operator's ManualRead the Operator's ManualTo reduce the risk of injury, user must read and understand Operator's Manual before using this product.
Do not mow up and down slopes!Do not mow up and down slopes!To avoid the risk of injury do not mow up and down slopes. Always mow across slopes. (Angle ≤15°)
Keep all persons and pets at a safe distance from the mower while operating!Keep all persons and pets at a safe distance from the mower while operating!To avoid the risk of injury to bystanders keep all persons and pets at a safe distance from the mower while operating.
Keep hands and feet clear of mower deck and discharge opening at all times!Keep hands and feet clear of mower deck and discharge opening at all times!Rotating blades can cause serious injury. Keep hands and feet clear of mower deck and discharge opening at all times. Always be sure blade has stopped after releasing switch lever and removing battery before removing and replacing collection bag, cleaning, servicing, transporting or lifting the mower.
Stay behind the handle when the motor is running!Stay behind the handle when the motor is running!Objects struck by mower blade can cause serious injury. Stay behind the handle when the moto is running. Always ensure persons and pets are clear of the discharge from the mower while operating.
Do not open or remove safety shieldsDo not open or remove safety shieldsDo not open or remove safety shields while the motor is running.
Look behind while backingLook behind while backingLook behind while backing the mower in order to avoid tripping.
Keep hands and feet awayKeep hands and feet awayDanger: Keep hands and feet away.
Cutting WidthCutting WidthCutting diameter.
Lithium-Ion Battery RecyclingLithium-Ion Battery RecyclingDesignates that this tool is in compliance with lithium-ion battery recycling program requirements.
Keep Away From WaterKeep Away From WaterDo not dispose of battery packs in rivers or immerse in water.
Keep Away From FireKeep Away From FireDo not dispose of battery packs in explode or leak and cause injury.
Heat AlertHeat AlertDo not expose battery packs to heat in excess of 60°C (140°F).
Recycle SymbolRecycle SymbolThis product uses lithium-ion batteries. Local, state or federal laws may prohibit disposal of batteries in ordinary trash. Consult your local waste authority for information regarding available recycling and/or disposal options.

The following signal words and meanings are intended to explain the levels of risk associated with this product.

SYMBOLSIGNALMEANING
DANGERDANGERIndicates an imminently hazardous situation, which, if not avoided, will result in death or serious injury.
WARNINGWARNINGIndicates a potentially hazardous situation, which, if not avoided, could result in death or serious injury.
CAUTIONCAUTIONIndicates a potentially hazardous situation, which, if not avoided, may result in minor or moderate injury.
NOTICE(Without Safety Alert Symbol)Indicates a situation that may result in property damage.

Service

Service requires extreme care and knowledge and should be performed only by a qualified service technician. When servicing, use only identical replacement parts.

For troubleshooting or replacement, please call Customer Service for assistance (Toll free number 866-384-8432).

! WARNING To avoid serious personal injury, do not attempt to use this product until you read thoroughly and understand completely the Operator's Manual. If you do not understand the warnings and instructions in the Operator's Manual, do not use this product. Call Customer Service for assistance (Toll free number 866-384-8432).

Know Your Lawn Mower

The safe use of this product requires an understanding of the information on the product and in this Operator's Manual as well as a knowledge of the project you are attempting. Before use of this product, familiarize yourself with all operating features and safety rules.

Components

Assembly

Unpacking

This product requires assembly.

You Will Need (Items Not Supplied)

Packing List

NOTE: The safety key must be installed for mower to operate. DO NOT FORCE IT!

! WARNING If any parts are damaged or missing do not operate this product until the parts are replaced. Failure to heed this warning could result in serious personal injury. 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, and will void the warranty. Do not connect power supply until assembly is complete. Failure to comply could result in accidental starting and possible serious personal injury. Never operate the mower without the proper safety devices in place and working. Never operate the mower with damaged safety devices. Failure to heed this warning can result in serious personal injury.

Assembling the Lower Handle

1. Insert the lower handles into the slots on the lawnmower housing. Ensure the handles are secured into place (Fig. 1).

A textual description of Figure 1: A diagram showing the lower handles being inserted into the lawnmower housing.

Assembling the Upper Handle

1. Fix the upper handle using the bolts, cable guide (pre-installed on cable) and the locking knobs, and turn the locking knob clockwise till it tightens (Fig. 2). There are two possible positions.

NOTE: Make sure the cable guide is installed correctly on one side of the upper handle as shown to avoid cable damage when the upper handle is folded up and down.

2. Secure the control cable with the cable clips (Fig. 3).

A textual description of Figure 2: A diagram showing the upper handle being attached with bolts, cable guide, and locking knobs.

A textual description of Figure 3: A diagram showing the control cable being secured with cable clips.

Assembling the Grass Collection Bag

1. Check the grass collection bag before assembling to make sure there is no damage.

2. Insert the grass collection bag handle in the slots on the upper cover of grass collection bag. Ensure the handle is securely 'clicks' into place (Fig. 4).

A textual description of Figure 4: A diagram showing the grass collection bag handle being inserted into the upper cover of the grass collection bag.

3. Align the cover and base of the grass collection bag at the front. Clip the two halves together, starting at the front and then moving to the sides (Fig. 5).

A textual description of Figure 5: A diagram showing the two halves of the grass collection bag being clipped together from front to sides.

4. Slide the tongue into the front section of the grass collection bag and ensure it is securely placed (Fig. 6).

A textual description of Figure 6: A diagram showing the tongue of the grass collection bag being slid into the front section.

5. The completely assembled grass collection bag is as shown below (Fig. 7).

A textual description of Figure 7: A diagram showing the completely assembled grass collection bag.

Installing and Removing the Grass Collection Bag

NOTE: The safety flap is spring operated. Ensure you have a firm grip when opening and closing to avoid personal injury.

Installing the grass collection bag:

  1. Lift the rear safety flap and hold it in position (Fig. 8).
  2. Lift the grass collection bag by its handle, and place the grass collection bag on the notches under rear safety flap (Fig. 9).
  3. Release the rear safety flap.
  4. Make sure the grass collection bag is firmly seated on the notches and the safety flap rests firmly against the top of the grass collection bag.

A textual description of Figure 8: A diagram showing the rear safety flap being lifted and held in position.

A textual description of Figure 9: A diagram showing the grass collection bag being placed on the notches under the rear safety flap.

Removing the grass collection bag:

  1. Lift the rear safety flap and hold it in position.
  2. Lift the grass collection bag by its handle, and unhook the grass collection bag from the mower.
  3. Release the rear safety flap.

Adjusting the Cutting Height

! WARNING Do not at any time make any adjustment to the lawn mower without first stopping the motor and removing the safety key. Keep your feet away from the mower deck when adjusting its height.

When shipped, the rear wheels on the mower are set to a low-cutting position. Before using the mower for the first time, adjust the cutting position to the height best suited for your lawn. The mower can be set to 5 cutting heights between 1" (25 mm) and 2.55" (65 mm). Choose the proper cutting height according to the types and condition of the grass.

To set the cutting height:

  1. To raise the cutting height, grasp the cutting height adjustment lever and move it toward the front of the mower (Fig. 10).
  2. To lower the cutting height, grasp the cutting height adjustment lever and move it toward the back of the mower (Fig. 10).

A textual description of Figure 10: A diagram illustrating the movement of the cutting height adjustment lever to raise or lower the cutting height.

Installing / Removing the Battery Pack

! WARNING If any parts are broken or missing, do not attempt to attach the battery pack to the mower or operate the mower until the broken or missing parts are replaced. Failure to do so could result in serious injury. Do not connect the battery and/or the safety key before the product is completely assembled.

To install battery pack:

  1. Open the plastic battery compartment cover on top of the mower deck.
  2. Align the raised ribs on the mower with the grooves in the battery pack, and then insert the battery pack into the compartment (Fig. 11).
  3. Push the battery pack until you hear a "click".
  4. Close the battery compartment cover.
  5. Your product is now ready to be used.

NOTE: Make sure that the battery pack firmly snaps into place and is secured to the mower before starting operation.

A textual description of Figure 11: A diagram showing the battery pack being aligned with the ribs and inserted into the compartment.

To remove battery pack:

  1. Stop the lawn mower. Lift the battery compartment cover and remove the safety key.
  2. Press the release button on the battery pack (1), grasp the battery pack firmly and pull out (2) of the battery compartment (Fig. 12).
  3. Close the battery compartment cover.

A textual description of Figure 12: A diagram illustrating the process of removing the battery pack by pressing the release button and pulling it out.

Battery Pack and Charger

Battery Charging

  1. Use only with 24V LawnMaster® battery chargers. The battery charger supplied is specifically designed for the lithium-Ion battery used in this garden appliance.
  2. Check the power voltage! Battery chargers operate on 120 V.
  3. The battery is charged between 40°F (4°C) and 104°F (40°C). This ensures an optimum battery service life.
  4. Protect the battery from heat, from continuous exposure to sun and keep away from radiation or other heat sources. Do not leave the battery in the mower in direct sunlight over long periods.
  5. The battery is supplied partially charged. To ensure full capacity of the battery, charge the battery before using your appliance for the first time. The lithium-ion battery can be charged at any time without reducing its service life. Interrupting the charging procedure does not affect the battery.

LED Charger Status

  1. If the battery is not inserted into the charger, a continuous red LED light indicates that the charger is plugged into a power supply socket and is now ready to begin charging.
  2. Charging: A flashing green LED on the charger indicates that the battery is charging normally.
  3. Charged: Continuous green LED on the charger indicates that the battery is ready for use.

The indicator lights on the charger show the charger status:

SYMBOLINDICATOR LIGHTSSTATUS
Red, blinkingRed, blinkingCharging paused. See Technical Issue.
Red, continuousRed, continuousConnected to power supply.
Green, blinkingGreen, blinkingCharging.
Green, continuousGreen, continuousFully charged.

4. The intelligent charger ensures maximum battery life, because it measures the existing charge level of the battery and then charges with the required current and voltage. Charge battery fully before storage.

5. Technical Issue: A flashing red LED light on the charger indicates that battery pack has a charging problem or might be defective.

a) One possible condition is the battery temperature is not within the charging temperature range of 40°F (4°C) and 104°F (40°C). As soon as the permitted temperature is reached, the battery charger will automatically switch to charging.

b) If the temperature range is correct and flashing red LED light continues, then remove and reinstall the battery pack. If the LED status repeats a second time, try to charge another identical battery. If the battery charges normally, dispose of the defective battery pack (see Environmental Safe Battery Disposal section).

c) If the flashing red light continues after installing the second battery (ensure the battery temperature is normal), the charger may be defective. Replace with a new one.

6. After continuous or repeated charging cycles without interruption, the charger may warm up. This is normal and does not indicate a technical defect of the battery charger.

Battery LED Panel

1. The panel consists of 4 LEDs on the battery. Press and hold the button, then release it, the LEDs will show you the charge levels.

2. The battery's charge level can be checked either when the battery is attached on the machine or removed from the machine.

LEDs on Battery (Continuous Lighting)Battery CapacityIndicator Lights
4 LEDs (inc 2 green)Fully charged.Indicator Lights
3 LEDs (inc 1 green)≥50%
2 LEDs (orange & red)≥25%
1 LED (red only)<25% (Recharge required).

A textual description of the Indicator Lights diagram: Four indicator lights labeled red, orange, green, and a button.

Charging the Battery Pack

A textual description of Figure 13: A diagram illustrating the battery pack being slid onto the charger rail and connected to the power supply.

! WARNING If any part of the charger is missing or damaged, do not operate it! Replace the charger with a new one. Failure to heed this warning could result in possible serious injury. Check the voltage! The voltage must comply with the information on the rating label.

  1. Align the slot of the battery pack with the rail on the charger. Slide the slot onto the rail until the battery pack secures into place (Fig. 13).
  2. Connect the charger to the power supply.
  3. Allow sufficient charging time (see Specifications), and then disconnect the charger from the power supply.
  4. Press the release button on the battery pack and remove it from the charger.

NOTE: It is normal for the battery pack and the charger to become warm (but not hot) during charging process. If the battery does not charge properly, check to make sure the electrical outlet is operational. Always charge the battery before storage!

Operation

! WARNING Do not allow familiarity with this type of product to make you careless. Remember that being careless for a fraction of a second is sufficient to inflict serious injury.

! WARNING Always wear safety goggles or safety glasses with side shields when operating this product. Failure to do so could result in objects being thrown into your eyes, resulting in possible serious injury.

! WARNING 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.

Starting/Stopping

1. To switch on, insert the safety key, press, and hold the safety switch button and gently pull the start/stop bale switch (Fig. 14 & 15). Once started, release the safety switch button.

2. To power off the mower, release the start/stop bale switch. Pull out the safety key if the mower is not going to be used immediately.

A textual description of Figure 14: A diagram showing the safety key inserted into the mower.

A textual description of Figure 15: A diagram showing the safety switch button being pressed and the start/stop bale switch being pulled.

Grass Collection Bag Full Indicator

(FIG. 16) The collection bag is equipped with a capacity indicator flap that indicates the filling volume during the mowing process.

  1. When the grass collection bag full indicator is opened (during operation), the collection bag has efficient volume left to collect grass.
  2. When the grass collection bag full indicator closes during the mowing operation, the collection bag needs to be emptied.

A textual description of Figure 16: A diagram illustrating the grass collection bag full indicator in both open (bag not full) and closed (bag full) states.

General Operation

Check the product, its power cord, and accessories for damage before each use. Before use, please ensure all power connections are in good working order prior to installing the power key and battery. If damage is present or observed, please stop, and have mower serviced before use. Do not use the product if it is damaged or shows wear.

  1. Double-check that the blade is properly installed.
  2. Always hold the product by its handles. Keep the handles dry to ensure safe support.
  3. Switch the equipment off immediately if someone enters the work area. Always let the equipment come to complete stop before removing the grass collection bag.
  4. Do not overwork yourself. Take regular breaks to ensure you can concentrate on the work and have full control over the product.

Mowing Tips

  1. Make sure the lawn is clear of stones, sticks, wires, and other objects that could damage the lawn mower blades or motor. Such objects could be accidentally thrown by the mower in any direction and cause serious personal injury to the operator and others.
  2. For a healthy lawn, always cut off one-third or less of the total length of the grass.
  3. When cutting heavy grass, reduce walking speed to allow for more effective cutting and a proper discharge of the clippings.
  4. Do not cut wet grass. It will stick to the underside of the deck and prevent proper mulching of grass clippings.
  5. New or thick grass may require a narrower cut.
  6. Clean the underside of the mower deck after each use to remove grass clippings, leaves, dirt, and any other accumulated debris.
  7. Mow in slight overlapping rows. The most effective pattern for mowing lawns is in straight lines along one of the sides. This will keep the rows even and ensure that the lawn is cut without missing any spots (Fig. 17).

A textual description of Figure 17: A diagram showing the correct (overlapping rows) and incorrect (straight lines without overlap) mowing patterns.

Mowing on a Slope (Fig. 18)

1. Slopes are a major factor related to slip and fall accidents that can result in severe injury. Mowing on slopes requires extra caution. If you feel uneasy on a slope, do not mow it. For your safety, do not attempt to mow slopes greater than 15 degrees.

2. Mow across the face of slopes, not up and down. Exercise extreme caution when changing direction on slopes.

3. Watch for holes, ruts, rocks, hidden objects, or bumps which can cause you to slip or trip. Tall grass can hide obstacles. Remove all objects such as rocks, tree limbs, etc., which could be tripped over or thrown by the blade.

4. Always be sure of your footing. A slip and fall can cause serious personal injury. If you feel you are losing your balance, release the start/stop bale switch immediately.

5. Do not mow near drop-offs, ditches, or embankments; you could lose your footing or balance.

A textual description of Figure 18: A diagram illustrating safe mowing on slopes (across the face) and unsafe mowing (up and down).

After Use

  1. Switch the product off, remove the battery pack and let it cool down.
  2. Check, clean and store the product as described below.

Maintenance

! WARNING When servicing, use only identical replacement parts. Use of any other parts may create a hazard or cause product damage.

! WARNING Always wear safety goggles or safety glasses with side shields during power tool operation or when blowing dust. If operation is dusty, also wear a dust mask.

General Maintenance

Avoid using solvents when cleaning plastic parts. Most plastics are susceptible to damage from various types of commercial solvents and may be damaged by their use. Use clean cloths to remove dirt, dust, oil, grease, etc.

! WARNING 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.

  1. Do not at any time make any maintenance to the lawn mower without first stopping the motor and removing the safety key and battery pack. Adjust the handlebar or make other adjustments as illustrated in the manual, if necessary or if it can make it easier for maintenance.
  2. Periodically check all nuts and bolts for proper tightness to insure safe operation of the mower.
  3. Remove any buildup of grass and leaves on or around the motor cover. Wipe the mower clean with a dry cloth occasionally. Do not use water.
  4. Do not wash with a hose; avoid getting water in motor and electrical connections.

Lubrication

All of the bearings in this product are lubricated with a sufficient amount of high-grade lubricant for the life of the unit under normal operating conditions. Therefore, no further bearing lubrication is required.

At the beginning and end of each mowing season:

  1. Lubricate the springs on the rear discharge door with light oil.
  2. Lubricate the cutting height adjustment lever and related hardware with light oil.
  3. Remove the wheels and lubricate the surface of the axle bolt and the inner surface of the wheels with light oil.
  4. Remove the blade and blade hub assembly and lubricate the motor shaft with light oil or engine oil. See Replacing the Cutting Blade section for instructions on removing the blade.

Replacing the Mower Blade

NOTE: Remove safety key and battery before performing any maintenance!

NOTE: Only use identical replacement blades. LawnMaster® mower blade replacement part #211049125.

  1. Stop the motor and allow the blade to come to a complete stop.
  2. With the blade stopped, remove the SAFETY KEY and the BATTERY from the mower and store in safe location.
  3. Remove the collection bag from the mower if attached.
  4. Slowly turn the mower onto its side.
  5. Wedge a block of wood between the blade and the mower deck in order to prevent blade from turning while the blade nut is being removed (Fig. 19).
  6. Loosen the blade nut using a wrench or socket (not provided).
  7. Remove the blade nut by turning counterclockwise, and then remove the blade.
  8. Place the new blade on the shaft. Make sure it is installed with the curved ends pointing up toward the mower deck and not down toward the ground.
  9. Thread the blade nut on the shaft and finger tighten.
  10. Torque the blade nut down using a torque wrench (not provided) to ensure the bolt is properly tightened (Fig. 20).

NOTE: Make certain all parts are replaced in the exact order in which they were removed.

A textual description of Figure 19: A diagram showing a wooden block wedged between the blade and mower deck to prevent rotation during nut removal.

A textual description of Figure 20: A diagram showing the blade nut being tightened with a torque wrench.

Sharpening the Blade

For best mowing performance, the mower blade must be kept sharp. A dull blade does not cut grass evenly and overloads the motor. Under normal circumstances, sharpening the blade twice during the mowing season is usually sufficient. However, if your lawn has sandy soil, more frequent sharpening may be required.

! WARNING When removing, inspect the blade carefully. If blade is bent or damaged, replace immediately with a new blade. Failure to replace a bent or damaged blade could cause an accident resulting in possible serious injury.

Balancing the Blade (Fig. 22)

When sharpening, care should be taken to keep the blade balanced. An unbalanced blade will cause excessive vibration when the mower is running. This vibration will eventually cause damage to the mower, especially the motor.

To check the blade balance:

A textual description of Figure 21: A diagram showing the sharpening of the blade edges with a file or sharpening stone.

A textual description of Figure 22: A diagram illustrating the process of checking the blade balance using a screwdriver and vise.

Storing the Mower

  1. Remove mower safety key and battery.
  2. Turn mower on its side and clean grass clippings that have accumulated on the underside of the mower deck.
  3. Wipe the mower clean with a dry cloth.
  4. Check all nuts, bolts, knobs, screws, fasteners, etc., for tightness.
  5. Inspect moving parts for damage, breakage, and wear. Have repairs made on any damaged or missing parts.
  6. Store mower indoors in a clean, dry place out of the reach of children.
  7. Do not store near corrosive materials such as fertilizer or rock salt. To lower the handle before storing: Remove and clean the grass collection bag. Fully loosen the handle locking knobs on the sides of the handle and fold the upper handle down (Fig. 23).

To save the space, the grass collection bag can be put on the mower.

A textual description of Figure 23: A diagram showing the upper handle being folded down for storage.

Cleaning the Mower

! WARNING To reduce the risk of electric shock, do not expose the mower to water.

! WARNING Do not at any time make any maintenance to the lawn mower without first stopping the motor and removing the safety key and battery pack.

The underside of mower deck should be cleaned after each use as grass clippings, leaves, dirt and other debris will accumulate causing rust and corrosion.

Battery Pack Maintenance

  1. Fully charge the battery before placing in storage.
  2. Recharge the battery pack whenever there is a noticeable reduction in the performance. Do not allow the battery pack to become completely discharged.
  3. Do not recharge a battery pack that is already fully charged. Overcharging shortens battery life.
  4. Once the battery pack is fully charged, remove the battery from the charger and disconnect charger from the outlet.
  5. Do not store the battery pack on the tool or on the charger.
  6. If the battery pack is hot, allow it to cool down before recharging.

Charger Maintenance

  1. Keep the charger clean and clear of debris. Do not allow foreign material into the recessed cavity or on the contacts. Wipe with a dry cloth. Do not use solvents, water, or place in wet conditions.
  2. Always unplug the charger when the battery pack is not installed on the charger.
  3. Do not store the charger in excessive heat. Do not use in direct sunlight.
  4. Do not store the charger in excessive heat. Do not use in direct sunlight.
  5. Disconnect the charger from the AC power outlet when not in use and once battery has reached a full charge.

Environmental Safe Battery Disposal

The following toxic and corrosive materials are in the batteries used in this battery pack: lithium-ion, a toxic material.

! WARNING All toxic materials must be disposed of in a specific 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 Environment Protection Agency for information and specific instructions.

! WARNING If the battery pack cracks or breaks, with or without leaks, do not recharge it and do not use it. Dispose of it and replace with a new battery pack.

DO NOT ATTEMPT TO REPAIR IT!

To avoid injury and risk of fire, explosion, or electric shock, and to avoid damage to the environment:

Troubleshooting

Suspected malfunctions are often due to causes that the user can fix themselves. Therefore, check the product using this section. In most cases the problem can be solved quickly.

! WARNING Only perform the steps described within these instructions! All further inspection, maintenance and repair work must be performed by an authorized service center or a similarly qualified specialist if you cannot solve the problem yourself!

PROBLEMPOSSIBLE CAUSESOLUTION
Mower fails to start.The key is not installed.Check the key installation.
The battery is not installed correctly.Check connection of battery to mower.
The battery is not charged, or power is too low.Charge the battery.
The blade is jammed.Stop mower and remove battery; check for grass and debris under the deck, clean to make blade free to move.
Mower cuts unevenly.The battery is defective or old.Replace the battery (call the toll-free helpline, at 866-384-8432).
The switch is defective.Replace the switch (call the toll-free helpline, at 866-384-8432).
Mower is hard to push.Rough or uneven lawn.Check the mowing area.
Cutting height not set properly.Set the mower at a higher position.
The blade is dull.Sharpen or replace the blade.
Mower is hard to push.High grass and low cutting height. Rear of mower housing and blade dragging in heavy grass.Raise the cutting height.
Mower vibrates excessively and makes a lot of noise.The cutting blade is not assembled securely.Tighten the blade bolts.
The blade is not balanced.Sharpen and balance the blade following instructions in this manual (see page 29). Or replace the blade.
The motor shaft is bent.Stop the mower and remove the battery. Have the mower inspected and repaired by an authorized service center before restarting.
Charger 2Hz red LED light flashing.Battery pack is too hot.Allow the battery pack to reach normal temperature. Charging will begin when battery pack returns to normal temperature.

For more status of the indicator lights on battery & charger, refer to page 21 & 22.

LawnMaster® Warranty

We take pride in producing a high quality, durable product. This Lawnmaster® product carries a limited two (2) year warranty against defects in workmanship and materials from date of purchase under normal household use. If product is to be used for commercial, industrial or rental use, a 30 day limited warranty will apply. Batteries carry a one-year warranty against defects in workmanship and materials. Batteries must be charged in accordance with the operator's manual directions and regulations in order to be valid. Warranty does not apply to defects due to direct or indirect abuse, negligence, misuse, accidents, repairs or alterations and lack of maintenance. Please keep your receipt/packing list as proof of purchase. This warranty gives you specific legal rights, and you may have other rights, which vary from state to state. For product service call Customer Service at 1-866-384-8432.

Items not covered by warranty :

  1. Any part that has become inoperative due to misuse, commercial use, abuse, neglect, accident, improper maintenance, or alteration;
  2. The unit, if it has not been operated and/or maintained in accordance with the owner's manual;
  3. Normal wear, except as noted below;
  4. Routine maintenance items such as lubricants, blade sharpening;
  5. Normal deterioration of the exterior finish due to use or exposure.

Transportation Charges : Transportation charges for the movement of any power equipment unit or attachment are the responsibility of the purchaser. It is the purchaser's responsibility to pay transportation charges for any part submitted for replacement under this warranty unless such return is requested in writing by LawnMaster.

SAVE YOUR RECEIPTS. THIS WARRANTY IS VOID WITHOUT THEM.

Exploded View

A textual description of the exploded view diagram showing all the parts of the lawn mower with corresponding numbers.

Parts List

Key NumberDrawing NumberDescriptionQuantity
1Motor Cover Assy.1.0
2111198146Safety Key1.0
3PCB Assy.1.0
4Key Holder Assy.1.0
5Motor Drive Assy.1.0
6211068103Wheel Assy. (5.51")4.0
7Washer Assy.1.0
8Base Assy.1.0
9Front Axle Assy.1.0
10Ballast Assy.1.0
11Locating Ring1.0
12211049125Blade1.0
13Bolt Assy.1.0
14Height Connecting Rod1.0
15Protective Plate Assy.1.0
16Rear Axle Assy.1.0
17Tension Spring1.0
18Rear Wheel Support1.0
19Safety Flap Assy.1.0
20Safety Door Spring1.0
21Safety Door1.0
22211068109Lower Handle Assy.1.0
23211068109Handle Knob Assy.2.0
24211068110Grass Collection Bag1.0
25Upper Handle1.0
26Switch Box Assy.1.0
27Cable Clips2.0
28211062119Battery2.0
29221024107Charger1.0

Replacement parts highlighted in grey are available for after sales purchase. Replacement of repair or internal parts should only be done by a qualified service professional. Please contact your authorized service dealer or Customer Service at 866-384-8432.

Notes

Models: 20VMWGT 24V Max 13 inch Lawn Mower and Grass Trimmer 10 inch Combo, 20VMWGT, 24V Max 13 inch Lawn Mower and Grass Trimmer 10 inch Combo, Lawn Mower and Grass Trimmer 10 inch Combo, Grass Trimmer 10 inch Combo, Trimmer 10 inch Combo

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