EGO POWER+ LM2120SP Lawn Mower Manual

The EGO POWER+ LM2120SP is a 21-inch self-propelled cordless electric lawn mower powered by a 56V ARC Lithium™ battery. It features a durable steel deck, 6-position cutting height adjustment (1.5" to 4"), single-lever height adjustment, 3-in-1 mulching, bagging, and side-discharge capabilities, LED headlights, weather-resistant construction, and a push-button start. Below are key sections for safety, features, assembly, operation, maintenance, and troubleshooting.

1. Features at a Glance 2. Assembly & Setup 3. First-Time Operation 4. Specifications 5. Controls and Settings 6. Battery & Charging 7. Mowing Operations 8. Safety Features 9. Care & Maintenance 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Steel cutting deck, Handle with controls, Battery compartment, Grass collection bag, Mulching plug, Charger.

FeatureDescription
Steel Cutting Deck21-inch durable deck for efficient cutting
56V ARC Lithium™ BatteryHigh-capacity, rechargeable battery pack
Self-Propelled DriveVariable speed control for easy maneuvering
Single-Lever Height AdjustmentAdjust all four wheels simultaneously (1.5" to 4")
3-in-1 FunctionMulch, bag, or side-discharge clippings
LED HeadlightsIlluminate work area in low-light conditions
Push-Button StartInstant start with no pull cord
Weather-Resistant ConstructionDesigned for use in various conditions
Battery Fuel GaugeDisplays remaining battery charge
Folding HandleFor compact storage

Assembly & Setup

Unpack and inspect all parts. Assemble on a flat, clear surface.

  1. Attach the handle: Align handle brackets with deck mounts, insert and tighten provided bolts.
  2. Install the grass bag: Attach bag support frame to rear deck, then hook collection bag onto frame.
  3. Install the battery: Insert fully charged battery into compartment until it clicks.
  4. Adjust cutting height: Use single lever to set desired height before first use.

WARNING! Ensure mower is powered OFF and battery is removed during assembly. Tighten all fasteners securely.

First-Time Operation

Fully charge battery before first use. Perform a safety check.

  1. Insert battery: Ensure it is fully seated and locked.
  2. Select cutting mode: Install mulching plug, bag, or set for side-discharge.
  3. Adjust cutting height: Use lever to set appropriate height for your lawn.
  4. Start mower: Press and hold safety lever on handle, then press start button.
  5. Engage self-propel: Squeeze drive control lever to desired speed.

CAUTION! Clear mowing area of debris. Do not operate on wet grass. Wear appropriate safety gear.

Specifications

Controls and Settings

Handle Controls: Safety lever, Start button, Drive control lever, Height adjustment lever.

Operation: Press and hold safety lever to activate handle, then press start button. Release safety lever to stop blade.

Cutting Height: Single lever adjusts all wheels through 6 positions. Drive Speed: Variable control via lever on handle. Battery Gauge: Check charge level via indicator on battery. Function Selector: Install appropriate accessory (mulch plug, bag, or open chute) for desired mode.

Battery & Charging

Use only EGO 56V ARC Lithium™ batteries and charger.

  1. Charging: Remove battery, connect to charger, plug into 120V outlet.
  2. Charger LED indicates status (red=charging, green=fully charged).
  3. Insert charged battery into compartment until it clicks and gauge illuminates.
  4. Storage: Store battery in a cool, dry place away from metal objects.

Tip: For longest life, charge battery after each use. Do not store in a discharged state.

Mowing Operations

Supports mulching, bagging, and side-discharge of grass clippings.

  1. Select Mode: Install correct accessory (mulching plug for mulch, bag for collection, open chute for side-discharge).
  2. Start Mower: Engage safety lever and press start button.
  3. Mow: Walk at a steady pace, overlapping passes slightly for even cut.
  4. Self-Propel: Use drive control to match your walking speed.
  5. Empty Bag: Stop mower, remove safety key/battery, empty bag when full.
  6. Finish: Release safety lever to stop blade. Remove battery for storage.

WARNING! Always turn mower OFF and remove battery before clearing blockages, changing modes, or performing maintenance.

Safety Features

Safety Lever: Blade stops within 3 seconds of release. Keyed Battery: Prevents unauthorized use. Instant Stop: Blade stops when control is released. LED Lights: For visibility. Always read and follow all safety instructions in the manual.

Care & Maintenance

Remove battery before any maintenance. Keep mower clean and dry.

  1. After use: Clean underside of deck to prevent grass buildup.
  2. Blade Care: Periodically inspect blade for damage or dullness. Sharpen or replace as needed.
  3. Wheels & Bearings: Check for free movement; lubricate if specified.
  4. Storage: Store in a dry place, with battery removed and separately stored.

CAUTION! Never use water or pressure washer to clean electrical components. Wear gloves when handling the blade.

Regulatory Information

This product complies with applicable U.S. safety and emissions standards. Copyright © 2023 Chervon North America, Inc. EGO POWER+ is a trademark of Chervon. Battery and charger contain lithium-ion batteries; follow local regulations for disposal. For support, visit www.egopowerplus.com or contact 1-855-EGO-5656.

Troubleshooting

SymptomPossible CauseCorrective Action
Mower won't startBattery not inserted/charged, Safety lever not engagedInsert charged battery fully; ensure safety lever is pressed firmly.
Poor cutting performanceDull blade, Low cutting height, Wet grassSharpen or replace blade; raise cutting height; mow when grass is dry.
Self-propel not workingDrive control cable, Wheel obstructionCheck cable connection; ensure wheels move freely and debris is cleared.
Battery not chargingFaulty outlet, Charger issue, Battery temperatureTry different outlet; check charger LED; allow battery to reach room temperature.
Excessive vibrationDamaged/unbalanced blade, Loose fastenersStop mower immediately, remove battery, inspect and tighten blade and deck bolts.

Reset: Remove battery for 60 seconds to reset electronic controls.

Service: 1-855-EGO-5656; www.egopowerplus.com

EGO POWER+ LM2120SP Lawn Mower Manual © - All Rights Reserved 2025