DeWalt DCMWP234 Lawn Mower Manual

The DeWalt DCMWP234 is a 20-inch cordless electric lawn mower featuring a brushless motor, dual 20V MAX* batteries (or single 40V MAX* battery compatibility), 3-in-1 functionality (mulch, bag, side discharge), 7-position height adjustment, foldable handle for storage, LED headlight, and weather-resistant construction. 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 Installation & Charging 7. Mowing Operations 8. Safety Features 9. Care & Maintenance 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Brushless motor deck, battery compartment, height adjustment lever, foldable handle, grass bag, safety key, and LED headlight.

Feature	Description
Power Source	Dual 20V MAX* or single 40V MAX* battery system
Cutting Width	20-inch steel deck
Cutting Height	7-position adjustment (1.5" to 4")
3-in-1 Function	Mulch, bag, or side discharge capability
Motor Type	Brushless for increased efficiency and runtime
Handle	Foldable for compact storage
Headlight	LED for low-light conditions
Safety Key	Removable key to prevent accidental start
Weight	Approx. 65 lbs (without battery)
Warranty	3-year limited warranty

Assembly Instructions

Unpack all parts and inspect for damage. Assembly requires basic tools (included).

Attach the lower handle: Align with deck brackets and secure with provided bolts.
Install the upper handle: Connect to lower handle, tighten knobs.
Attach grass bag: Hook bag onto rear deck hooks.
Install side discharge chute (if needed): Snap into place on right side.
Install battery: Insert fully charged battery into compartment.

WARNING! Ensure mower is turned off and battery is removed during assembly. Keep hands clear of blade area.

First-Time Setup

Prepare mower for initial use.

Charge battery: Use DeWalt charger until indicator shows full charge.
Adjust cutting height: Set lever to desired position (recommend 3" for first use).
Select mode: Install mulch plug, bag, or side discharge chute as needed.
Insert safety key: Push fully into slot near handle.
Test operation: In a clear area, press safety lever and start switch to ensure proper function.

CAUTION! Always wear sturdy shoes and eye protection. Clear mowing area of debris.

Specifications

Model: DCMWP234
Power: 20V MAX* or 40V MAX* battery system
Cutting Width: 20 inches
Cutting Height Range: 1.5" - 4" (7 settings)
Deck Material: Steel
Battery Runtime: Up to 60 minutes (varies with grass conditions)
Charging Time: Approx. 60 minutes for 20V, 90 minutes for 40V
Weight: 65 lbs (without battery)
Warranty: 3-year limited

Controls and Settings

Primary controls located on upper handle.

Handle Controls: Safety lever (must be held), Start/Stop switch, Battery gauge, Height adjustment lever.

Operation: Press and hold safety lever, then press start switch. Release either to stop blade. Height adjustment: Move lever to one of 7 positions. Battery: Check fuel gauge for charge level. Mode selection: Install mulch plug for mulching, bag for collection, or chute for side discharge.

Battery Installation & Charging

Compatible with DeWalt 20V MAX* and 40V MAX* batteries.

Insert battery: Slide into compartment until it clicks.
Remove battery: Press release buttons and pull out.
Charging: Use DeWalt charger; plug into outlet, insert battery. LED indicates charging status.
Storage: Store batteries in cool, dry place away from metal objects.

Tip: For best performance, use fully charged batteries and keep spare batteries ready.

Mowing Operations

Follow proper mowing techniques for best results.

Pre-check: Clear area of stones, toys, and debris.
Start mower: Hold safety lever, press start switch.
Mowing pattern: Overlap each pass by 2-3 inches.
Adjust speed: Move at steady pace; avoid rushing.
Empty bag: When bag full indicator shows, stop mower and empty clippings.
After mowing: Turn off, remove safety key, and clean underside.

WARNING! Never operate without safety key installed. Keep hands and feet away from moving parts.

Safety Features

Safety key: Must be inserted to operate. Safety lever: Requires constant pressure. Blade brake: Stops blade within 3 seconds of release. LED headlight: Improves visibility in low light.

Care & Maintenance

Regular maintenance ensures long life and optimal performance.

After each use: Clean underside with brush or hose (after disconnecting battery).
Blade sharpening: Inspect monthly; sharpen or replace if dull or damaged.
Battery care: Keep terminals clean; store at room temperature.
Winter storage: Clean thoroughly, remove battery, store in dry place.

CAUTION! Always disconnect battery before performing any maintenance. Wear gloves when handling blade.

Regulatory Information

FCC Part 15: Class B digital device; complies with interference limits. EPA compliant: Electric motor produces zero emissions. Copyright © 2023 DeWalt; trademarks of Stanley Black & Decker, Inc. For support, visit www.dewalt.com or contact 1-800-4-DeWalt (1-800-433-9258).

Troubleshooting

Symptom	Possible Cause	Corrective Action
Mower won't start	Battery dead/safety key	Charge battery; ensure safety key fully inserted.
Poor cutting performance	Dull blade/wrong height	Sharpen or replace blade; adjust cutting height.
Battery drains quickly	Old battery/heavy grass	Use fresh battery; mow more frequently.
Uneven cut	Deck clogged/wheels uneven	Clean deck; check tire pressure/height settings.
Unusual vibration/noise	Damaged blade/debris	Stop immediately; inspect blade and remove debris.

Reset: Remove battery for 30 seconds, then reinsert.

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