DeWalt DCMWP500N Lawn Mower Manual

The DeWalt DCMWP500N is a 20-inch cordless electric walk-behind lawn mower powered by two 20V MAX* or 60V MAX FLEXVOLT* batteries (sold separately). It features a brushless motor for extended runtime and durability, a 3-in-1 capability (mulch, bag, side discharge), a single-lever height adjustment for 7 cutting positions (1.5" to 4"), a foldable handle for compact storage, and a durable steel deck. Below are key sections for safety, features, assembly, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: Steel cutting deck, Brushless motor, Battery ports (2x), Height adjustment lever, Foldable handle, 3-in-1 rear bag, Mulching plug, Side discharge chute.

Assembly & Setup

Unpack all parts. Assembly requires a Phillips screwdriver and adjustable wrench (included in toolkit).

1. Attach the lower handle: Align with deck brackets, secure with provided bolts and wrench.
2. Attach the upper handle: Connect to lower handle, secure knobs hand-tight.
3. Install the grass bag: Hook bag frame onto rear deck mounts; ensure bag is fully seated.
4. Install batteries: Insert two fully charged 20V MAX or 60V MAX FLEXVOLT batteries into the ports.
5. Attach side discharge chute (if using): Slide into side port and secure with wing knob.

WARNING! Ensure mower is turned OFF and batteries are removed during assembly. Tighten all fasteners securely.

Operation Instructions

Before first use, read all safety instructions. Ensure area is clear of debris, people, and pets.

1. Insert Safety Key: Push fully into slot near the handle.
2. Adjust cutting height: Pull the single lever outward and move to desired position (1-7).
3. Select mode: Install mulch plug, bag, or side discharge chute as needed.
4. Start mower: Press and hold the safety lever on the handle, then press the start button.
5. Mow: Walk at a steady pace, overlapping passes slightly for even cut.
6. To stop: Release the safety lever; the blade will stop within 3 seconds.
7. Empty bag: Stop mower, remove safety key. Empty bag when full for best performance.

CAUTION! Always remove the safety key when not in use. Do not mow wet grass.

Specifications

• Model: DCMWP500N
• Cutting Width: 20 inches
• Cutting Height Range: 1.5 - 4 inches (7 positions)
• Deck Material: Steel
• Motor: Brushless
• Battery System: Compatible with 20V MAX* and 60V MAX FLEXVOLT*
• Wheels: 8" rear, 7" front
• Weight (without battery): 57 lbs (25.9 kg)
• Collection Bag Capacity: 1.9 bushels
• Sound Rating: < 75 dB(A) at operator's ear

Controls and Adjustments

Handle Controls: Safety lever, Start button, Battery charge indicator lights. Deck: Single-lever height adjustment, Discharge chute port, Mulch plug slot.

Height Adjustment: Pull lever outward and move to position 1 (lowest) through 7 (highest). Mode Change: To mulch, insert mulch plug into rear discharge opening. To bag, attach grass bag. To side discharge, install chute. Battery Indicator: LEDs on mower show remaining charge (Green = High, Yellow = Medium, Red = Low).

Battery & Charging

Use only DeWalt 20V MAX or 60V MAX FLEXVOLT batteries and chargers.

1. Charging: Insert battery into compatible charger. LED indicates charging status.
2. Installation: Insert batteries into mower ports until they click. Ensure polarity is correct.
3. Runtime: Varies based on grass condition, height, and battery capacity. Use high-capacity batteries for larger lawns.
4. Storage: Store batteries in a cool, dry place away from metal objects.

Tip: For best performance, use two batteries of the same type and charge level.

Maintenance & Cleaning

Regular maintenance ensures optimal performance and longevity.

1. After each use: Clean underside of deck with a brush or hose (ensure mower is OFF and batteries removed).
2. Blade Care: Periodically check blade for sharpness and damage. Replace if bent or dull.
3. Wheel Check: Ensure wheels spin freely and axles are secure.
4. Hardware: Check handle and deck bolts for tightness before each use.

WARNING! Always disconnect batteries before performing any maintenance. Wear gloves when handling the blade.

Storage

Store mower in a dry, covered area.

1. Fold handle: Loosen knobs, fold handle down toward deck.
2. Remove batteries: Store separately in a climate-controlled environment.
3. Clean thoroughly: Remove all grass clippings from deck, bag, and chute.
4. Protect blade: Consider applying a light coat of oil to the blade to prevent rust.

CAUTION! Do not store with batteries installed. Keep away from children.

Safety Information

Read and understand all instructions. Failure to follow warnings can result in serious injury.

• Always wear safety glasses, long pants, and sturdy shoes.
• Keep hands and feet away from moving parts and discharge opening.
• Never operate without the grass bag, mulch plug, or discharge chute properly installed.
• Do not mow on steep slopes or wet grass.
• Remove the safety key when mower is unattended.
• Keep children and pets away from the area.
• This appliance is not intended for use by persons with reduced physical, sensory or mental capabilities.

Warranty & Support

DeWalt offers a 3-year limited warranty for the mower, 1-year free service, and a 90-day money-back guarantee. Proof of purchase is required. For technical support, parts, or service, visit www.dewalt.com or call 1-800-4-DeWalt (1-800-433-9258).

Troubleshooting

Reset: If mower stops unexpectedly, remove safety key for 10 seconds, then reinsert.

Service: For repairs not covered in manual, contact DeWalt authorized service center.