Dewalt DCHT820 Manual

The Dewalt DCHT820 is a powerful cordless hedge trimmer designed for efficient trimming and cutting of hedges and shrubs. It features a 20-inch dual-action blade that reduces vibration and enhances cutting efficiency. With a lightweight design and ergonomic handle, it provides comfort during extended use. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Connecting Devices 7. Operating the Trimmer 8. Maintenance 9. Safety Information 10. Troubleshooting

Features at a Glance

Key components: 20-inch dual-action blade, lightweight design, ergonomic handle, battery-powered operation.

FeatureDescription
20-inch bladeLong cutting length for efficient trimming
Dual-action bladesReduces vibration and enhances cutting efficiency
Battery-poweredConvenient cordless operation
Ergonomic handleDesigned for comfort during extended use
LightweightEasy to maneuver and handle

Installation

Unpack and inspect contents. Ensure battery is charged before use.

  1. Attach the battery pack: Align and insert until it clicks into place.
  2. Check blade for damage: Ensure blades are sharp and free of debris.
  3. Wear safety gear: Use gloves and goggles for protection.

WARNING! Always check surroundings for obstacles before trimming.

First-Time Setup

Power on the trimmer; ensure the battery is securely attached.

  1. Test the operation: Press the trigger to ensure the trimmer runs smoothly.
  2. Adjust grip: Ensure a comfortable hold on the ergonomic handle.
  3. Practice cutting: Start with small branches to get accustomed to the tool.

CAUTION! Keep hands away from the blade while operating.

Specifications

Controls and Settings

Access the power trigger for operation. The safety switch must be engaged to operate the trimmer.

Battery Indicator: Displays battery level; recharge when low.

Connecting Devices

No external devices are required for operation. Ensure the battery is charged and properly connected.

Operating the Trimmer

Supports trimming of hedges and shrubs.

  1. Power on: Press the trigger to start trimming.
  2. Cutting technique: Use a sweeping motion for even cuts.
  3. Stop: Release the trigger to stop the blade.

WARNING! Always keep both hands on the handle while operating.

Maintenance

Regular maintenance is essential for optimal performance.

  1. Clean blades after use: Remove debris and sap.
  2. Check battery: Ensure it is charged and free of damage.
  3. Store properly: Keep in a dry place away from moisture.

Safety Information

Always wear safety goggles and gloves while operating the trimmer. Keep children and pets away from the work area.

Troubleshooting

SymptomPossible CauseCorrective Action
Trimmer does not startBattery not chargedRecharge battery and try again.
Blade not cuttingDull bladeSharpen or replace the blade.
Excessive vibrationLoose bladeTighten blade screws.
Battery drains quicklyOld batteryReplace with a new battery.

Service: For support, contact Dewalt customer service.

Dewalt DCHT820 Manual © - All Rights Reserved 2026