DeWalt XR DCMWSP156N Lawn Mower Manual

The DeWalt XR DCMWSP156N is a 56V MAX* cordless walk-behind lawn mower featuring a brushless motor, two 7.5Ah FLEXVOLT ADVANTAGE batteries, a 21-inch steel deck, 6-position single-lever height adjustment (1.5-4 inches), mulching and rear bagging capabilities, LED headlights, and a foldable handle for storage. Below are key sections for safety, features, assembly, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: Steel cutting deck, Brushless motor, FLEXVOLT ADVANTAGE battery system, Single-lever height adjustment, Mulching plug, Rear collection bag, LED headlights, Foldable handle.

Assembly & Setup

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

1. Attach the lower handle: Secure to deck with provided bolts and wrench.
2. Attach the upper handle: Connect to lower handle, secure knobs.
3. Install the collection bag: Attach bag frame to rear brackets, hang bag.
4. Install batteries: Insert both FLEXVOLT ADVANTAGE batteries into ports.
5. Attach mulching plug (if desired): Insert into rear discharge chute.
6. Check wheel height: Ensure all wheels are at same setting.

WARNING! Do not install batteries until assembly is complete. Ensure all bolts are tight.

First-Time Operation

Before first mow, fully charge both batteries.

1. Insert Safety Key: Place key into slot near handle.
2. Start the mower: Press and hold safety lever on handle, then press start button.
3. Adjust cutting height: Use single lever to desired setting.
4. Engage drive (if equipped): Press drive control lever to self-propel.
5. For bagging: Ensure mulching plug is removed and bag is attached.
6. For mulching: Install mulching plug securely.

CAUTION! Clear lawn of debris before mowing. Keep hands and feet away from cutting deck.

Specifications

• Model: DeWalt XR DCMWSP156N
• Power: 56V MAX* FLEXVOLT ADVANTAGE Battery System
• Batteries Included: Two 7.5Ah
• Cutting Width: 21 inches
• Cutting Height Range: 1.5 - 4 inches (6 positions)
• Deck Material: Steel
• Weight (without batteries): 65 lbs
• Wheels: 8-inch rear, 7-inch front
• Features: Brushless motor, Mulching/Bagging, LED headlights, Foldable handle
• Charger: DCB115 8A Charger (included)

Controls and Settings

Main controls located on the handle.

Handle Controls: Safety lever, Start button, Drive control lever (if equipped), Bail lever (to run motor).

Deck Controls: Single-lever height adjustment, Mulching plug slot, Bag attachment points.

Battery Indicators: LED fuel gauge on each battery shows charge level.

Operation: Insert key, hold safety lever, press start. Release safety lever to stop blade. Use drive lever for self-propelled motion.

Cutting Height Adjustment

Single lever adjusts all four wheels simultaneously.

1. Stop mower and ensure blade is not spinning.
2. Pull height adjustment lever outward.
3. Move lever to desired position (1-6, corresponding to 1.5" to 4").
4. Release lever to lock into place.
5. Check that all wheels are at the same height.

Tip: For a healthier lawn, never cut more than 1/3 of grass height at one time.

Mulching & Bagging

Switch between mulching and bagging by installing or removing the mulching plug.

1. Mulching: Insert mulching plug fully into the rear discharge chute. Cuttings are recycled into the lawn as nutrient-rich clippings.
2. Bagging: Remove mulching plug. Attach collection bag frame and bag to rear brackets. Empty bag when full indicator is raised.

WARNING! Always stop mower and remove key before changing cutting mode. Ensure plug or bag is securely attached.

Battery Care & Charging

Use only DeWalt FLEXVOLT ADVANTAGE 56V batteries and DCB115 charger.

1. Charging: Insert battery into charger. LED will indicate charging progress.
2. Storage: Store batteries in a cool, dry place away from metal objects.
3. Runtime: Using two 7.5Ah batteries provides extended runtime. Monitor battery indicators.
4. Temperature: Charge between 40°F and 105°F (4°C and 40°C).

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

Maintenance & Storage

Regular maintenance ensures optimal performance and longevity.

• After Each Use: Clean underside of deck (with mower off and key removed). Check for debris.
• Blade Sharpening: Inspect blade monthly. Sharpen or replace if dull or damaged.
• Wheel Care: Ensure wheels move freely. Lubricate axles if necessary.
• End of Season: Fully charge batteries for storage. Clean entire mower. Fold handle and store in a dry place.

CAUTION! Always disconnect batteries before performing any maintenance.

Safety Information

Read all instructions before use. Contains important safety information.

• Wear appropriate clothing, eye protection, and sturdy footwear.
• Clear mowing area of stones, sticks, and other objects.
• Do not mow wet grass.
• Never allow children or pets in area while mowing.
• Use the safety key to prevent unauthorized use.
• Always push mower, do not pull.
• Be aware of the discharge direction.

WARNING! Risk of injury from rotating blade. Keep hands and feet away. Always turn off and remove key for any adjustment or maintenance.

Troubleshooting

Service: For service or parts, contact DeWalt at 1-800-4-DeWalt (1-800-433-9258) or visit www.dewalt.com.