DeWalt DCMWSP660 Lawn Mower Manual

The DeWalt DCMWSP660 is a 60V MAX* cordless self-propelled lawn mower featuring a 21-inch steel deck, 6-position single-lever height adjustment (1.5-4 inches), dual-port 60V MAX* FLEXVOLT battery compatibility, brushless motor for extended runtime, 3-in-1 functionality (mulch, bag, side discharge), variable speed self-propulsion, LED headlight, folding handle for storage, and weather-resistant construction. Below are key sections for safety, features, assembly, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: 21-inch steel cutting deck, FLEXVOLT battery system, brushless motor, self-propulsion drive, height adjustment lever, 3-in-1 rear bag, folding handle, LED headlight.

Assembly Instructions

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

1. Attach lower handle: Align lower handle brackets with deck mounts, secure with provided bolts and wrenches.
2. Install upper handle: Slide upper handle into lower handle tubes, align height, tighten knobs.
3. Attach grass bag: Hook bag frame onto rear deck mounts, ensure secure latch.
4. Install battery: Insert FLEXVOLT battery into dual-port compartment until it clicks.
5. Install safety key: Insert key into control panel before operation.

WARNING! Do not install battery or insert safety key until assembly is complete. Ensure all fasteners are tight.

First-Time Setup

Prepare mower for initial use.

1. Charge battery fully: Use DeWalt charger (DCB115) until indicator shows full.
2. Adjust cutting height: Set lever to desired position (recommend 3" for first mow).
3. Select discharge mode: Install mulch plug, bag, or open side chute as needed.
4. Perform safety check: Ensure blade is secure, area is clear of debris.

CAUTION! Always wear eye protection and sturdy footwear. Clear mowing area of stones, toys, and other objects.

Specifications

• Model: DCMWSP660
• Cutting Width: 21 inches
• Cutting Height: 1.5 - 4 inches (6 positions)
• Power Source: 60V MAX* FLEXVOLT Battery (9.0Ah or compatible)
• Deck Material: Powder-coated steel
• Self-Propelled Speed: Variable, up to 3.5 mph
• Bag Capacity: 2.8 bushels (mulching kit included)
• Weight (without battery): 68 lbs
• Warranty: 3-year limited warranty

Controls and Settings

Control panel located on upper handle.

Handle Controls: Self-propulsion control lever, bail lever (safety handle), height adjustment lever, battery gauge.

Operation: Press bail lever to handle to engage motor, release to stop blade. Squeeze self-propulsion lever to engage drive; speed adjusts with lever pressure. Use height lever to raise/lower deck. Battery gauge shows remaining charge (4 LEDs).

Settings: Discharge mode selected via mulch plug, bag, or side chute. Blade brake system stops blade within 3 seconds of releasing bail.

Battery Installation & Charging

Compatible with DeWalt 60V MAX* FLEXVOLT batteries.

1. Install battery: Insert into compartment until it clicks; ensure proper orientation.
2. Remove battery: Press release buttons, slide battery out.
3. Charging: Use DCB115 charger; plug into outlet, insert battery. LED indicates charging status.
4. Storage: Store battery in cool, dry place away from metal objects.

Tip: For best performance, store and charge batteries at room temperature. Allow battery to cool before charging.

Mowing Operations

Follow safe mowing practices.

1. Start mower: Insert safety key, press bail lever to handle.
2. Self-propulsion: Squeeze drive lever to move forward; adjust speed as needed.
3. Cutting patterns: Overlap each pass by 2-3 inches for even cut.
4. Discharge modes: Use bag for collection, mulch for nutrients, side discharge for tall grass.
5. Slope mowing: Mow across slopes, not up and down. Use extra caution on inclines.
6. Stop mower: Release bail lever; blade stops within 3 seconds. Remove safety key.

WARNING! Never operate without grass bag, mulch plug, or side chute properly installed. Keep hands and feet away from cutting deck.

Maintenance & Storage

Regular maintenance ensures optimal performance.

1. After each use: Clean underside of deck, remove grass clippings.
2. Blade inspection: Check for damage or dullness every 25 hours; sharpen or replace as needed.
3. Battery care: Keep contacts clean; store at 40-80% charge if not used for extended periods.
4. Winter storage: Clean thoroughly, remove battery, store in dry location.

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

Safety Information

Read and understand all safety instructions before operation.

• Wear eye protection, long pants, and sturdy shoes.
• Clear mowing area of debris, stones, and toys.
• Do not mow wet grass or in rain.
• Keep bystanders, especially children and pets, at a safe distance.
• Use extra caution when mowing on slopes.
• Never leave mower unattended with battery installed.
• Disconnect battery before troubleshooting, cleaning, or storage.

Warranty & Support

DeWalt 3-year limited warranty covering defects in materials/workmanship. Proof of purchase required. For support, visit www.dewalt.com or contact 1-800-4-DeWalt (1-800-433-9258). Register product online for faster service.

Troubleshooting

Reset: Remove battery for 30 seconds to reset electronics.

Service: Authorized DeWalt service centers only. Do not attempt to repair battery or motor.