DeWalt 12AVP2KL347 Lawn Mower Manual

The DeWalt 12AVP2KL347 is a 20-inch 12V MAX* Cordless Electric Lawn Mower featuring a brushless motor, dual 12V MAX* 10Ah batteries, 3-in-1 functionality (mulch, bag, side discharge), 7-position single-lever height adjustment (1.5" to 4"), foldable handle for storage, LED headlight, and a weather-resistant deck. 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. Mowing Functions 7. Battery & Charging 8. Safety Features 9. Care & Maintenance 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Brushless Motor, 20-inch Steel Deck, Dual Battery Ports, 3-in-1 Discharge Chute, Foldable Handle, 7-Position Height Adjustment Lever, LED Headlight, Battery Charger.

FeatureDescription
Brushless MotorProvides increased runtime, power, and motor life
20-inch Steel DeckDurable, weather-resistant cutting deck
Dual 12V MAX* Battery PortsAccepts two 12V MAX* 10Ah batteries for extended runtime
3-in-1 Discharge ChuteMulch, bag, or side discharge capability
Foldable HandleEasy storage and transport
Single-Lever Height Adjustment7 positions from 1.5 to 4 inches
LED HeadlightIlluminates dim areas for early morning or evening mowing
Safety KeyRemovable key to prevent unauthorized or accidental start
Battery Fuel GaugeDisplays remaining battery charge on the mower
PUSH START ButtonElectric start; no pull cord required

Assembly & Setup

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

  1. Attach the Lower Handle: Secure to deck using provided bolts and wrench.
  2. Attach the Upper Handle: Connect to lower handle, secure knobs.
  3. Install the Discharge Chute: Attach mulch plug, bag adapter, or side discharge chute as desired.
  4. Install Batteries: Insert two fully charged 12V MAX* 10Ah batteries into the ports.
  5. Attach Grass Bag: If using bagging function, secure bag to rear chute adapter.

WARNING! Ensure mower is turned OFF and safety key is removed during assembly. Tighten all hardware securely.

First-Time Operation

Before first mow, fully charge both batteries. Adjust cutting height.

  1. Insert Safety Key: Push fully into slot near handle.
  2. Adjust Cutting Height: Move single lever to desired position (1-7).
  3. Select Discharge Mode: Ensure proper chute configuration (mulch, bag, side discharge).
  4. Start Mower: Press and hold the safety lever on the handle, then press the PUSH START button.
  5. Begin Mowing: Walk at a steady pace, overlapping passes slightly.

CAUTION! Clear mowing area of stones, sticks, and debris. Do not mow wet grass.

Specifications

Controls and Settings

Main controls located on the upper handle. Safety lever must be engaged to start.

Handle Controls: Safety Lever, PUSH START Button, Battery Fuel Gauge Buttons.

Settings: Cutting Height Lever (positions 1-7), Discharge Chute Selector (mulch plug/bag adapter/side chute). Battery Management: Fuel gauge indicates charge level; press button on battery or mower to check. Safety: Removable Safety Key, Safety Lever (deadman switch).

Mowing Functions

Supports mulching, bagging, and side discharge.

  1. Mulching: Install mulch plug. Cuts clippings finely and returns them to lawn.
  2. Bagging: Attach grass bag and adapter. Collects clippings for disposal.
  3. Side Discharge: Install side discharge chute. Ejects clippings to the side.
  4. Height Adjustment: Change setting based on grass type and season.
  5. Folding Handle: Loosen knobs, fold handle down for compact storage.

Tip: For best mulching results, mow when grass is dry and do not cut more than 1/3 of grass height at once.

Battery & Charging

Uses two DeWalt 12V MAX* 10Ah Lithium-Ion batteries.

  1. Charging: Insert battery into charger; LED indicates status (red=charging, green=fully charged).
  2. Installation: Insert batteries into mower ports until they click.
  3. Runtime: Approximately 60 minutes per charge under normal conditions with two batteries.
  4. Storage: Store batteries in a cool, dry place. Charge fully before long-term storage.
  5. Fuel Gauge: Press button on battery or mower to see remaining charge (LED indicators).

WARNING! Use only DeWalt 12V MAX* batteries and charger. Do not expose batteries to fire or water.

Safety Features

Safety Key: Must be inserted to operate. Safety Lever (Deadman Switch): Motor stops if released. Blade Brake: Blade stops within 3 seconds of releasing lever. Protective Deck: Shields blade. LED Headlight: Improves visibility.

Care & Maintenance

Disconnect batteries and remove safety key before any maintenance.

  1. Cleaning: Wipe deck and handle with damp cloth. Remove grass clippings from under deck.
  2. Blade Care: Periodically inspect blade for damage or dullness. Sharpen or replace as needed.
  3. Battery Contacts: Keep clean and dry.
  4. Wheel & Height Adjustment: Check for smooth operation; lubricate if necessary.
  5. Storage: Store in a dry place, with handle folded. Remove batteries if storing for extended period.

CAUTION! Never clean with water hose or pressure washer. Always wear gloves when handling the blade.

Regulatory Information

This product complies with applicable U.S. safety standards. Copyright © 2023 DeWalt. DeWalt, the yellow and black color scheme, and 12V MAX* are trademarks of Stanley Black & Decker, Inc. or its affiliates. For support, visit www.dewalt.com or contact 1-800-4-DeWalt (1-800-433-9258).

Troubleshooting

SymptomPossible CauseCorrective Action
Mower won't startSafety key not inserted, dead batteries, safety lever not engagedInsert safety key fully; charge or replace batteries; ensure safety lever is held down.
Reduced runtimeOld/damaged batteries, tall/wet grass, dull bladeCheck battery health; mow dry grass at proper height; sharpen or replace blade.
Uneven cutUneven tire pressure, worn/dull blade, deck cloggedCheck tire inflation; sharpen or balance blade; clean underside of deck.
Excessive vibrationDamaged or unbalanced blade, loose hardwareStop mower immediately. Inspect blade for damage and tighten all bolts/nuts.
Grass not discharging properlyDeck clogged, wet grass, incorrect discharge mode settingClean deck; mow when grass is dry; ensure correct chute/adapter is installed.

Reset: Remove safety key and batteries for 1 minute to reset electronics.

Service: 1-800-4-DeWalt; www.dewalt.com

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