DeWalt DCMWP134P2 Lawn Mower Manual

The DeWalt DCMWP134P2 is a 20-inch cordless electric walk-behind lawn mower powered by two 20V MAX* 10Ah lithium-ion batteries (included), featuring a brushless motor, 3-in-1 mulching/bagging/side-discharge capability, single-lever height adjustment (1.5-4 inches), push-button start, foldable handle for 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 compartment, height adjustment lever, foldable handle, grass bag, mulch plug, safety key.

Assembly Instructions

Unpack and inspect all parts. Assembly requires a Phillips screwdriver and adjustable wrench.

1. Attach the lower handle: Align holes on lower handle with deck brackets, secure with provided bolts and nuts.
2. Install the upper handle: Slide upper handle onto lower handle, align holes, and secure with knobs.
3. Attach the grass bag: Hook bag onto rear deck hooks; ensure it is securely fastened.
4. Install batteries: Insert two fully charged 20V MAX batteries into the battery compartment.
5. Install safety key: Insert key into slot near the start button.

WARNING! Ensure all fasteners are tightened securely. Do not operate without the grass bag or mulch plug properly installed if using bagging or mulching mode.

First-Time Setup

Before first use, fully charge batteries and perform a safety check.

1. Charge batteries: Use DeWalt 20V MAX charger (included) to charge both batteries fully (approx. 60 minutes each).
2. Check cutting height: Adjust lever to desired height (recommend 2.5-3 inches for first mow).
3. Select function: Install mulch plug for mulching, attach bag for bagging, or remove both for side discharge.
4. Test operation: In a clear area, insert safety key, press and hold safety handle, then press start button.

CAUTION! Clear mowing area of debris, rocks, and toys before operation. Wear safety glasses and sturdy shoes.

Specifications

• Model: DeWalt DCMWP134P2
• Cutting Width: 20 inches
• Cutting Height Range: 1.5 to 4 inches (6 positions)
• Power: Two 20V MAX* 10Ah lithium-ion batteries (included)
• Motor: Brushless electric motor
• Deck Material: Steel
• Weight (without batteries): 57 lbs
• Run Time (approx.): Up to 60 minutes per battery set on typical grass
• Charge Time: Approx. 60 minutes per battery with included charger
• Warranty: 3-year limited warranty

Controls and Operation

Main controls: Start button, safety handle, height adjustment lever, battery indicator.

Operation Steps:

1. Insert safety key into slot near start button.
2. Grasp the safety handle on the upper handlebar and hold it against the handle.
3. Press the green start button while continuing to hold the safety handle.
4. Release start button once motor is running; continue holding safety handle to operate.
5. To stop, release safety handle; motor will stop within 3 seconds.
6. Remove safety key when not in use.

Battery Indicator: LEDs on battery show charge level (3 green = full, 1 red = low).

Cutting Height Adjustment

Single-lever adjustment for all four wheels.

1. Locate the height adjustment lever on the right side of the deck.
2. Pull lever outward to release, move to desired height setting (1.5, 2, 2.5, 3, 3.5, or 4 inches).
3. Release lever to lock into position.
4. Check that all wheels are at the same height by lifting the mower and visually confirming.

Tip: For healthier grass, never cut more than 1/3 of grass blade length at one time. Adjust height seasonally (higher in summer heat).

3-in-1 Functionality

Configure for mulching, bagging, or side discharge.

1. Mulching: Install mulch plug into rear discharge chute. Grass clippings are cut finely and returned to lawn as fertilizer.
2. Bagging: Remove mulch plug, attach grass bag to rear hooks. Collects clippings for disposal.
3. Side Discharge: Remove both mulch plug and grass bag. Clippings discharge from side chute (use in tall/wet grass).

WARNING! Always stop motor and remove safety key before changing function. Ensure chute or bag is securely attached.

Battery Care & Charging

Use only DeWalt 20V MAX lithium-ion batteries and charger.

1. Charging: Insert battery into charger; LED will flash red while charging, solid green when complete.
2. Storage: Store batteries in cool, dry place away from metal objects. Charge fully before long-term storage.
3. Temperature: Charge between 40°F and 105°F (4°C to 40°C). Do not charge frozen batteries.
4. Disposal: Do not dispose in fire or household trash. Recycle at authorized DeWalt service center.

CAUTION! Do not expose batteries to water or fire. Do not use damaged batteries.

Maintenance & Storage

Regular maintenance ensures optimal performance and longevity.

1. After each use: Clean underside of deck with brush or hose (ensure mower is off and batteries removed).
2. Blade care: Check blade for damage monthly. Sharpen or replace if dull or damaged (use only DeWalt replacement blade).
3. Wheel bearings: Lubricate annually with light machine oil.
4. Storage: Fold handle, remove batteries, store in dry location. Charge batteries every 3 months if not in use.

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

Safety Information

Read all instructions before operation. Keep bystanders and pets away.

• Wear eye protection, long pants, and sturdy shoes.
• Do not operate on steep slopes (max 15-degree incline).
• Never leave mower unattended with batteries inserted.
• Do not mow in reverse unless necessary; always look behind.
• Keep hands and feet away from moving parts and discharge chute.
• Use only in daylight or good artificial light.
• Do not operate in rain or wet conditions.

WARNING! Risk of fire, electric shock, or injury. Follow all safety guidelines.

Troubleshooting

Service: For repairs, contact DeWalt customer service at 1-800-433-9258 or visit www.dewalt.com.

Reset: If mower stops unexpectedly, remove safety key, wait 30 seconds, reinsert and restart.