DeWalt DCMWP234U2 Lawn Mower Manual

The DeWalt DCMWP234U2 is a 21-inch 60V MAX* Cordless Self-Propelled Lawn Mower featuring a brushless motor, two 10.0Ah FLEXVOLT® batteries, dual-port rapid charger, 3-in-1 functionality (mulch, bag, side discharge), variable speed self-propulsion, 7-position height adjustment, LED headlights, and weather-resistant construction. 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. Cutting & Discharge Options 7. Battery & Charging 8. Safety Features 9. Maintenance & Storage 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: 21-inch steel deck, Brushless Motor, Handle with controls, Battery Ports, Height Adjustment Lever, Grass Bag, Mulching Plug, Side Discharge Chute.

Feature	Description
Brushless Motor	High-efficiency, extended runtime, reduced maintenance
Dual 10.0Ah FLEXVOLT® Batteries	Provides extended cutting time; compatible with DeWalt 60V/20V MAX* system
Variable Speed Self-Propulsion	Forward speed control via thumb lever (0-3.5 mph)
3-in-1 Functionality	Mulch, Bag, or Side Discharge capability
7-Position Height Adjustment	Single lever adjusts cutting height from 1.5" to 4"
LED Headlights	For early morning or low-light conditions
Folding Handle	For compact storage
Battery Fuel Gauge	Displays remaining charge on battery
Safety Key	Must be inserted to start mower
Dual-Port Rapid Charger	Charges two batteries simultaneously

Assembly & Setup

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

Attach Lower Handle: Secure to deck using provided bolts and wrench.
Attach Upper Handle: Connect to lower handle; secure knobs.
Install Grass Bag: Hook bag onto rear deck brackets.
Insert Mulching Plug (if mulching): Place into rear discharge opening.
Install Side Discharge Chute (if side discharging): Attach to side port.
Install Batteries: Insert two fully charged batteries into ports.
Insert Safety Key: Place into slot near handle.

WARNING! Ensure mower is on level ground during assembly. Keep hands clear of blade area. Do not install batteries until assembly is complete.

First-Time Operation

Before first use, fully charge batteries. Select desired cutting mode.

Check Area: Clear lawn of debris, stones, and toys.
Adjust Cutting Height: Use lever to set desired height (start high for first cut).
Select Discharge Mode: Install appropriate accessory (bag, plug, or chute).
Start Mower: Insert safety key, hold safety bail to handle, press start button.
Engage Self-Propulsion: Squeeze thumb lever to desired speed.
Mow: Overlap passes slightly for even cut.
Shut Down: Release bail to stop blade. Remove safety key.

CAUTION! Always wear sturdy footwear and eye protection. Do not mow wet grass. Keep bystanders and pets away.

Specifications

Cutting Width: 21 inches.
Deck Material: Powder-coated steel.
Cutting Height Range: 1.5" - 4" (7 positions).
Motor Type: Brushless.
Battery System: 60V MAX* FLEXVOLT®.
Batteries Included: Two 10.0Ah.
Charger: Dual-port rapid charger (DCB115).
Self-Propelled Speed: 0 - 3.5 mph variable.
Weight (without batteries): 65 lbs.
Functionality: 3-in-1 (Mulch, Bag, Side Discharge).
Warranty: 3-year limited warranty.

Controls and Settings

Handle Controls: Safety Bail, Start Button, Self-Propulsion Thumb Lever, Height Adjustment Lever.

Operation: Safety bail must be held against handle to run. Release to stop blade instantly. Self-propulsion lever controls forward speed (variable). Height lever adjusts all four wheels simultaneously.

Battery: Fuel gauge shows charge level (LED indicators). Insert/remove by pressing release buttons. Charger: Plug into standard 120V outlet; LED indicates charging (red) and complete (green).

Cutting & Discharge Options

Configure for Mulching, Bagging, or Side Discharge.

Mulching: Install mulching plug. Cuts clippings finely and returns them to lawn.
Bagging: Attach grass bag. Collects clippings for disposal.
Side Discharge: Install side discharge chute. Ejects clippings to the side.

Tip: For best mulching, mow when grass is dry and don't cut more than 1/3 of blade height at once. Empty bag frequently to maintain airflow.

Battery & Charging

Use only DeWalt 60V MAX* or 20V MAX* batteries (with adapter).

Charging: Insert batteries into charger. Red LED = charging; Green LED = complete.
Runtime: Varies with grass condition, height, and density. Two 10.0Ah batteries provide up to 60 minutes.
Storage: Store batteries in cool, dry place away from metal objects.
Temperature: Charge between 40°F and 105°F. Do not charge frozen batteries.

WARNING! Do not modify batteries or charger. Use only DeWalt chargers. Do not expose batteries to fire or water.

Safety Features

Safety Key: Prevents accidental start-up. Remove when not in use. Safety Bail: Blade stops within 3 seconds of release. Blade Brake Clutch: Stops blade while keeping wheels engaged (if applicable).

Maintenance & Storage

Always remove batteries and safety key before maintenance.

After Each Use: Clean underside of deck with brush or hose (ensure mower is off and unplugged).
Blade Care: Periodically inspect blade for damage or dullness. Sharpen or replace as needed.
Wheel & Height Adjustment: Lubricate pivot points if stiff.
End of Season: Fully charge batteries. Store in a dry place. Clean entire mower.

CAUTION! Never tilt mower with batteries installed. Always disconnect power before cleaning or servicing blade.

Regulatory Information

This product complies with applicable ANSI/OPEI standards and U.S. CPSC regulations. Contains lithium-ion batteries; follow local disposal regulations. Copyright © 2023 DeWalt. DeWalt, FLEXVOLT, and the yellow/black color scheme are 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	Safety key not inserted, dead batteries, bail not engaged	Insert safety key, charge/replace batteries, hold bail against handle.
Reduced runtime	Old/damaged batteries, tall/wet grass, dull blade	Charge batteries fully, mow when grass is dry, sharpen blade.
Uneven cut	Uneven tire pressure, worn/damaged blade, deck clogged	Check tires, inspect/replace blade, clean underside of deck.
Self-propulsion not working	Drive cable disconnected, debris in drive	Check drive cable connection, clear debris from wheel area.
Excessive vibration	Damaged/unbalanced blade, loose parts	Stop mower immediately. Inspect blade and tighten all fasteners.

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

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