DEWALT DCMPS520N 20V XR Pruning Saw Instruction Manual

1. Introduction

Thank you for choosing the DEWALT DCMPS520N 20V XR Pruning Saw. This cordless electric chainsaw is engineered for efficiency and ease of use in various cutting, trimming, and pruning applications. Its lightweight and compact design, combined with a high-efficiency brushless motor, provides extended runtime and motor life, making it an ideal tool for both professional and home DIY tasks.

2. General Safety Information

WARNING! Read all safety warnings and instructions. Failure to follow the warnings and instructions may result in electric shock, fire, and/or serious injury.

2.1 Personal Safety

• Always wear appropriate personal protective equipment (PPE), including safety glasses or goggles, hearing protection, gloves, and sturdy footwear.
• Do not operate the pruning saw when tired, under the influence of drugs, alcohol, or medication.
• Maintain proper footing and balance at all times. Do not overreach.
• Keep all parts of the body away from the saw chain when the saw is operating.
• Do not operate the saw with one hand. Two-handed operation is required for safe use.

2.2 Work Area Safety

• Keep the work area clean and well-lit. Cluttered or dark areas invite accidents.
• Do not operate power tools in explosive atmospheres, such as in the presence of flammable liquids, gases, or dust.
• Keep children and bystanders away while operating a power tool. Distractions can cause you to lose control.

2.3 Tool Use and Care

• Do not force the power tool. Use the correct power tool for your application.
• Disconnect the battery pack from the power tool before making any adjustments, changing accessories, or storing power tools.
• Store idle power tools out of the reach of children and do not allow persons unfamiliar with the power tool or these instructions to operate the power tool.
• Maintain power tools and accessories. Check for misalignment or binding of moving parts, breakage of parts, and any other condition that may affect the power tool’s operation.
• Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp cutting edges are less likely to bind and are easier to control.

3. Package Contents

Upon unpacking, please ensure all items listed below are present and undamaged. If any parts are missing or damaged, contact your retailer immediately.

• (1) DEWALT 18V XR Pruning Saw (DCMPS520) - Bare Unit
• (1) Bar Cover
• (1) 20cm Pruning Bar (DT20694)
• (1) Wrench (for chain tensioning)
• (1) 20cm Chain (DT20693)

Note: This product is a bare unit and does not include a battery or charger. These must be purchased separately.

4. Technical Specifications

5. Setup and Assembly

5.1 Battery Installation

1. Ensure the pruning saw is switched off and the chain brake is engaged.
2. Align the battery pack with the battery port on the tool handle.
3. Slide the battery pack into the port until it clicks securely into place.
4. To remove, press the battery release button and slide the battery out.

5.2 Chain and Bar Installation

Refer to the diagram below for visual guidance.

1. Place the chain around the guide bar, ensuring the cutting edges are facing the correct direction (away from the motor at the top of the bar).
2. Fit the chain and bar onto the saw's drive sprocket.
3. Replace the bar cover and hand-tighten the bolt.

5.3 Chain Tensioning

The DCMPS520N features bolt lock chain tensioning for reliable bar retention. A wrench is conveniently stored inside the bar cover for this purpose.

1. Loosen the bar cover bolt slightly.
2. Using the onboard wrench, adjust the tensioning screw until the chain is snug against the guide bar, but can still be pulled freely by hand. There should be no slack on the underside of the bar.
3. Tighten the bar cover bolt securely.
4. Check tension again after a few cuts, as new chains can stretch.

5.4 Oiling the Chain

This pruning saw features an automatic oiler system to keep the bar and chain lubricated during use. Ensure the oil reservoir is filled before each use.

1. Locate the oil reservoir cap (usually on the top or side of the saw body).
2. Unscrew the cap and fill the reservoir with appropriate bar and chain oil. Do not overfill.
3. Replace the cap securely.
4. Periodically check the oil level during operation and refill as needed.

6. Operating Instructions

6.1 Starting the Saw

1. Ensure the battery is fully charged and correctly installed.
2. Engage the chain brake (if applicable, typically by pushing the front hand guard forward).
3. Hold the saw firmly with both hands, one on the main handle and one on the front handle.
4. Disengage the chain brake (pull the front hand guard back).
5. Press the trigger lock-off button (if present) and then squeeze the variable speed trigger to start the saw.

6.2 Cutting Techniques

The DCMPS520N is ideal for trimming branches, cutting bundles of wood, and general pruning tasks.

• Pruning Branches: For smaller branches, use a steady, controlled motion. For larger branches, make an undercut first to prevent pinching, then complete the cut from the top.
• Cutting Wood: Ensure the workpiece is stable and supported. Allow the saw to do the work; do not force it.
• Tip Guard: The integrated metal pruning tip provides control and stability, especially during upcuts. Utilize it when necessary for precision and safety.
• Body Grip: The ergonomic body grip design with a hand guard enhances control and safety during application. Always maintain a firm grip.

6.3 Stopping the Saw

Release the trigger to stop the saw. Engage the chain brake immediately after use and before setting the saw down.

7. Maintenance

WARNING: Always remove the battery pack before performing any maintenance or cleaning.

7.1 Cleaning

• After each use, clean the saw thoroughly. Remove sawdust, chips, and debris from the motor housing, guide bar, and chain.
• Use a brush or compressed air for cleaning. Do not use water or solvents.
• Wipe down the exterior with a damp cloth.

7.2 Chain Sharpening

A sharp chain is crucial for safe and efficient operation. Sharpen the chain regularly or replace it when dull.

• Refer to the chain manufacturer's instructions for proper sharpening angles and file sizes.
• Alternatively, have the chain professionally sharpened.

7.3 Guide Bar Maintenance

• Clean the guide bar groove regularly to remove accumulated sawdust and debris.
• Flip the guide bar periodically to ensure even wear.

7.4 Storage

• Store the pruning saw in a dry, secure location, out of reach of children.
• Ensure the bar cover is in place to protect the chain.
• Remove the battery pack before long-term storage.

8. Troubleshooting

9. User Tips

• Battery & Charger: As this is a bare unit, ensure you have compatible DEWALT 20V XR batteries and a charger. Consider having multiple batteries for extended work sessions.
• Chain Oil: Always use high-quality bar and chain oil. Check the oil level frequently, especially during prolonged use, to prevent premature wear of the chain and bar.
• Cleanliness: Regularly clean the saw, especially the chain and bar, to prevent resin buildup which can affect performance and battery life.
• Sharpness: A sharp chain makes a significant difference in cutting efficiency and safety. Do not attempt to cut with a dull chain.

10. Warranty and Support

DEWALT products are manufactured to high-quality standards and are guaranteed against manufacturing defects. For specific warranty terms and conditions, please refer to the warranty card included with your purchase or visit the official DEWALT website.

For technical assistance, spare parts, or service, please contact DEWALT customer support or an authorized service center in your region. Keep your proof of purchase for warranty claims.