EGO POWER+ TR4200 Lawn Mower Manual

The EGO POWER+ TR4200 is a 21-inch cordless electric lawn mower powered by a 56V ARC Lithium™ battery. It features a brushless motor, 3-in-1 mulching, bagging, and side-discharge capabilities, a single-lever height adjustment (1.5" to 4"), push-button start, LED headlights, weather-resistant construction, and a folding handle for storage. 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: 21-inch steel deck, 56V ARC Lithium™ battery, Charger, Handle assembly, Grass bag, Mulching plug, Side-discharge chute.

FeatureDescription
56V ARC Lithium™ BatteryProvides cordless power; compatible with EGO POWER+ system
Brushless MotorHigh efficiency, quiet operation, extended runtime
3-in-1 FunctionMulch, bag, or side-discharge clippings
Single-Lever Height AdjustmentAdjusts all four wheels simultaneously (1.5" to 4")
Push-Button StartInstant start with no pull cord
LED HeadlightsIlluminate dim areas for early morning or evening mowing
Folding HandleFor compact storage
Weather-Resistant ConstructionDesigned for outdoor use and storage
Battery Fuel GaugeShows remaining charge on battery pack
Safety KeyPrevents accidental start-up

Assembly & Setup

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

  1. Attach the handle: Align lower handle with deck brackets, secure with provided bolts and wrench.
  2. Install upper handle: Connect to lower handle, secure knobs.
  3. Attach grass bag: Hang bag on rear hooks; ensure it's secure.
  4. Install battery: Insert fully charged battery into compartment until it clicks.
  5. Attach mulching plug or side-discharge chute as desired.

WARNING! Ensure mower is turned off and battery is removed during assembly. Tighten all fasteners securely.

First-Time Operation

Before first use, fully charge the battery. Select desired mowing mode.

  1. Insert Safety Key into slot near handle.
  2. Adjust cutting height: Use single lever to set height for your lawn condition.
  3. Select discharge mode: Install mulching plug, grass bag, or side-discharge chute.
  4. Start mower: Press and hold safety lever on handle, then press start button.
  5. Begin mowing: Walk at a steady pace, overlapping passes slightly.

CAUTION! Clear mowing area of debris, rocks, and toys. Wear appropriate footwear and eye protection.

Specifications

Controls and Settings

Main controls located on the handle. Front of deck: Height adjustment lever.

Handle Controls: Safety lever (must be held to operate), Start/Stop button, Battery fuel gauge indicator.

Cutting Height: Adjust via single lever on each wheel or central lever (model dependent). Discharge Mode: Select by installing appropriate accessory (mulching plug, bag, or chute). Battery: Insert/remove by pressing release buttons. LED Lights: Automatically activate in low light when mower is running.

Battery & Charging

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

  1. Charging: Plug charger into outlet, connect to battery. LED indicates charging status.
  2. Battery Installation: Insert into compartment until it clicks; ensure it's fully seated.
  3. Storage: Store battery in a cool, dry place away from metal objects.
  4. Fuel Gauge: Press button on battery to check remaining charge (LED indicators).

Tip: For longest battery life, charge after each use and store at room temperature.

Mowing Operations

Supports mulching, bagging, and side-discharge.

  1. Mulching: Install mulching plug. Cuts clippings finely and returns them to lawn.
  2. Bagging: Attach grass bag. Collects clippings for disposal.
  3. Side-Discharge: Install side-discharge chute. Ejects clippings to the side.
  4. Height Adjustment: Change height based on grass type and season.
  5. Overlap Passes: Overlap each pass by 2-3 inches for even cut.
  6. Wet Grass: Avoid mowing wet grass if possible; may reduce efficiency and clog deck.
  7. Slopes: Mow across slopes, not up and down, for stability.

WARNING! Always turn mower off and remove safety key before changing accessories or clearing blockages.

Safety Features

Safety Key: Must be inserted to start mower. Safety Lever: Must be held during operation; releases to stop blade. Blade Brake: Stops blade within 3 seconds of releasing lever. Protective Deck: Shields blade area.

Care & Maintenance

After each use: Clean underside of deck, check for damage. Periodically: Inspect blade for sharpness/damage, tighten fasteners, check wheels.

CAUTION! Always remove battery before performing any maintenance. Use only EGO replacement parts.

Regulatory Information

FCC Part 15: Class B digital device; complies with interference limits. Copyright © 2023 EGO POWER+; trademarks of Chevron Phillips Chemical Company LP. For support, visit www.egopowerplus.com or contact 1-855-EGO-5656. Dispose of battery according to local regulations; do not incinerate.

Troubleshooting

SymptomPossible CauseCorrective Action
Mower won't startSafety key not inserted, dead battery, safety lever not engagedInsert safety key, charge battery, fully engage safety lever.
Reduced runtimeOld battery, tall/wet grass, high cutting heightCharge battery fully, mow more frequently, lower cutting height.
Uneven cutDull blade, uneven tire pressure, clogged deckSharpen/replace blade, check tire pressure, clean deck.
Excessive vibrationDamaged or unbalanced blade, loose fastenersInspect and replace blade if damaged, tighten all bolts.
Battery not chargingFaulty charger, dirty contacts, battery temperature extremeTry different outlet, clean battery/charger contacts, move to room temperature.

Reset: Remove battery for 30 seconds, then reinsert.

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

EGO POWER+ TR4200 Lawn Mower Manual © - All Rights Reserved 2025