DeWalt 12AVP2RF039 Lawn Mower Manual

The DeWalt 12AVP2RF039 is a 12-inch cordless electric lawn mower powered by a 20V MAX* battery system, featuring a 2-in-1 mulching and rear bagging system, 5-position single-lever height adjustment, foldable handle for compact storage, push-button start, and a durable steel deck. Below are key sections for safety, features, assembly, operation, maintenance, and troubleshooting.

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

Features at a Glance

Key components: 12-inch steel cutting deck, 20V MAX* battery, charger, rear collection bag, mulching plug, foldable handle, safety key, and height adjustment lever.

FeatureDescription
Cutting Width12 inches
Power Source20V MAX* Lithium-Ion Battery (included)
Cutting System2-in-1 (Mulch & Bag)
Height Adjustment5 positions (0.75" - 2.75")
Start SystemPush-button electric start
HandleFoldable for storage
Deck MaterialPowder-coated steel
Safety KeyRequired for operation
Weight (without battery)Approx. 25 lbs
Warranty3-year limited

Assembly Instructions

Unpack all parts and inspect for damage. Assembly requires a Phillips screwdriver (not included).

  1. Attach the lower handle: Align holes on lower handle with deck brackets, secure with provided bolts and wing nuts.
  2. Attach the upper handle: Slide upper handle onto lower handle, align holes, and secure with bolts and wing nuts.
  3. Install the rear bag: Hook bag onto rear deck brackets, ensure it is securely attached.
  4. Install the mulching plug (if desired): Insert plug into rear discharge opening.
  5. Install the safety key: Insert into slot near start button.

WARNING! Ensure all fasteners are tight before operation. Do not use if any parts are damaged.

First-Time Setup

Prepare the mower for its first use.

  1. Charge the battery: Connect charger to battery and AC outlet. Charge until indicator shows full (approx. 60 minutes).
  2. Install the battery: Insert fully charged battery into battery compartment until it clicks.
  3. Adjust cutting height: Move single lever to desired position (test on a small area first).
  4. Insert safety key: Ensure key is fully inserted into slot.

CAUTION! Keep hands and feet away from cutting blade at all times. Read all safety instructions before use.

Specifications

Controls and Settings

Main controls located on the upper handle.

Handle Controls: Start/Stop button, Battery charge indicator, Safety key slot, Handle release lever.

Cutting Height Adjustment: Single lever located near each wheel. Move lever to one of 5 numbered positions to raise or lower deck.

Operation Mode: Install rear bag for collection, or insert mulching plug to mulch clippings back into lawn.

Battery & Charging

Uses DeWalt 20V MAX* Lithium-Ion battery (included). Charger included.

  1. Charging: Connect charger to battery and plug into 120V AC outlet. LED indicates charging (red) and full charge (green).
  2. Run Time: Approx. 30-45 minutes per charge on typical grass, depending on height and density.
  3. Storage: Store battery in a cool, dry place. Charge fully before long-term storage.

Tip: For best performance, keep battery contacts clean and use only DeWalt 20V MAX* batteries and chargers.

Operating the Mower

For effective and safe mowing.

  1. Pre-operation check: Ensure area is clear of debris, children, and pets. Check that blade is secure and undamaged.
  2. Starting: Insert safety key, then press and hold start button. Release button to stop motor.
  3. Mowing: Push mower forward at a steady pace. Overlap passes slightly for even cut.
  4. Emptying bag: Stop motor, wait for blade to stop completely. Remove bag and empty clippings.
  5. Folding for storage: Release handle latches, fold handle down towards deck.

WARNING! Always wear eye protection and sturdy footwear. Do not mow wet grass. Never remove safety key while blade is moving.

Maintenance & Care

Regular maintenance ensures long life and safe operation.

CAUTION! Always disconnect battery before performing any maintenance.

Safety Information

Read and understand all instructions before use.

Refer to the full safety section in the printed manual for complete details.

Regulatory Information

This product complies with applicable U.S. safety and emissions standards. The battery contains lithium-ion cells; dispose of according to local regulations. Copyright © 2023 DeWalt. DeWalt, the yellow and black color scheme, and 20V MAX* are trademarks of Stanley Black & Decker, Inc., used under license. For support, visit www.dewalt.com or contact 1-800-4-DeWalt (1-800-433-9258).

Troubleshooting

SymptomPossible CauseCorrective Action
Mower will not startSafety key not inserted, dead battery, loose connectionInsert safety key fully; charge or replace battery; check battery connection.
Poor cutting performanceDull blade, low battery, cutting height too lowSharpen or replace blade; charge battery; raise cutting height.
Mower vibrates excessivelyDamaged or unbalanced blade, loose partsStop immediately. Check blade for damage and tighten all fasteners.
Battery not chargingFaulty charger, dirty contacts, battery defectClean battery/charger contacts; try different outlet; contact DeWalt if issue persists.
Bag not fillingWet grass, deck clogged, improper installationMow when grass is dry; clean underside of deck; ensure bag is attached correctly.

Service: For repairs, use only authorized DeWalt service centers. Do not attempt to repair the battery.

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

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