BLACK+DECKER LHT321FF

BLACK+DECKER 20V MAX Cordless Hedge Trimmer (LHT321FF) User Manual

Model: LHT321FF

1. Important Safety Instructions

Always read and understand all safety warnings and instructions before operating this hedge trimmer. Failure to follow these instructions may result in electric shock, fire, and/or serious injury.

  • Wear appropriate personal protective equipment, including eye protection, gloves, and sturdy footwear.
  • Keep hands and feet away from the cutting blades.
  • Ensure the battery is fully charged before use.
  • Do not operate the trimmer in wet conditions or near flammable liquids or gases.
  • Keep children and bystanders away from the operating area.
  • Inspect the hedge trimmer for damage before each use. Do not operate if damaged.

2. Product Overview

The BLACK+DECKER LHT321FF is a 20V MAX Lithium Ion cordless hedge trimmer designed for efficient trimming of hedges and shrubs. It features a 22-inch dual-action blade and the innovative Powercut feature.

BLACK+DECKER 20V MAX Cordless Hedge Trimmer LHT321FF

Figure 1: BLACK+DECKER 20V MAX Cordless Hedge Trimmer (LHT321FF) with battery and charger.

Key Features:

  • 20V MAX Lithium Ion Battery: Provides power and extended run time for various trimming tasks.
  • 22-Inch Dual-Action Blade: Engineered for reduced vibration during operation, ensuring smoother cuts.
  • Powercut Feature: Allows you to cut through tough jams with the push of a button, preventing interruptions.
  • Ergonomic Grips: Designed for comfort and reduced fatigue during prolonged use.
  • Cutting Capacity: Capable of cutting branches up to 3/4 inch in diameter.
BLACK+DECKER LHT321FF Hedge Trimmer features

Figure 2: LHT321FF Hedge Trimmer highlighting grip zones, 22-inch dual-action blade, and 3/4 inch cutting capacity.

3. Setup

3.1 Battery Charging

The BLACK+DECKER LHT321FF operates on a 20V MAX Lithium Ion battery. Ensure the battery is fully charged before first use and whenever the power level is low.

  1. Remove the battery from the hedge trimmer by pressing the release button and sliding it out.
  2. Connect the charger to a standard electrical outlet.
  3. Slide the battery onto the charger. The indicator light on the charger will show the charging status. A solid green light typically indicates a full charge.
  4. Once fully charged, remove the battery from the charger.
BLACK+DECKER 20V MAX Lithium Ion Battery

Figure 3: The 20V MAX Lithium Ion battery, compatible with the BLACK+DECKER 20V MAX system.

3.2 Attaching the Battery

Align the battery with the battery port on the hedge trimmer and slide it in until it clicks securely into place. Ensure it is firmly seated to prevent accidental dislodgement during operation.

4. Operating Instructions

4.1 Starting the Hedge Trimmer

The hedge trimmer is designed with a two-handed starting mechanism for safety.

  1. Grip the front handle with one hand and the rear handle with the other.
  2. Press the safety button located on the top of the rear handle.
  3. While holding the safety button, squeeze the trigger switch on the rear handle to start the blades.
  4. Release the trigger to stop the blades.

4.2 Using the Powercut Feature

The Powercut feature provides a temporary boost of power to cut through thicker branches that might otherwise jam the blades.

  1. While the trimmer is running and you encounter a tough branch that causes the blades to slow or jam, press the 'POWERCUT' button.
  2. This will temporarily increase the power to the blades, allowing you to cut through the obstruction.
  3. Release the 'POWERCUT' button once the cut is complete.
Person using Powercut feature on BLACK+DECKER hedge trimmer

Figure 4: Demonstrating the Powercut feature for tough cuts.

4.3 Trimming Techniques

For best results and to maintain the health of your hedges, follow these general trimming guidelines:

  • Hold the trimmer firmly with both hands.
  • Use a sweeping motion to cut across the top and sides of the hedge.
  • Cut branches up to 3/4 inch in diameter. For thicker branches, use appropriate pruning tools.
  • Angle the blades slightly upwards when trimming the sides of hedges to ensure the base receives adequate sunlight.
Person trimming hedges with BLACK+DECKER LHT321FF, showing 3/4 inch cutting capacity

Figure 5: The hedge trimmer effectively cuts branches up to 3/4 inch in diameter.

Person trimming hedges with BLACK+DECKER LHT321FF, highlighting 22-inch dual-action blade

Figure 6: The 22-inch dual-action blade provides efficient cutting with less vibration.

4.4 Official Product Videos

Video 1: Overview of the BLACK+DECKER 20V MAX Cordless Hedge Trimmer (LHT321FF) features and operation.

Video 2: Demonstration of BLACK+DECKER POWERCOMMAND features in action.

5. Maintenance

5.1 Blade Care

Regular blade maintenance ensures optimal performance and extends the life of your hedge trimmer.

  • After each use, clean the blades thoroughly to remove sap, leaves, and debris. Use a stiff brush and a damp cloth.
  • Apply a light coat of machine oil or blade lubricant to the blades to prevent rust and ensure smooth operation.
  • Periodically check the blades for sharpness. If dull, they may need sharpening or replacement by a qualified service technician.

5.2 Storage

Store the hedge trimmer in a dry, secure location out of reach of children. Ensure the blade cover is in place to prevent accidental injury and protect the blades.

6. Troubleshooting

If you encounter issues with your BLACK+DECKER LHT321FF hedge trimmer, refer to the following common solutions:

ProblemPossible CauseSolution
Trimmer does not startBattery not charged or improperly installed; Safety button/trigger not engaged correctly.Ensure battery is fully charged and securely installed. Press safety button and trigger simultaneously.
Blades jam during operationCutting branches too thick; Debris caught in blades.Use Powercut feature. If persistent, stop trimmer, remove battery, and clear debris. Avoid cutting branches exceeding 3/4 inch.
Reduced cutting performanceDull or dirty blades.Clean and lubricate blades. Sharpen or replace blades if necessary.

For further assistance, please contact BLACK+DECKER customer support.

7. Specifications

  • Brand: BLACK+DECKER
  • Model Number: LHT321FF
  • Power Source: Battery Powered
  • Voltage: 20V MAX Lithium Ion
  • Blade Length: 22 Inches
  • Cutting Width: 22 Inches
  • Blade Material: Metal
  • Max Branch Diameter: 3/4 Inches
  • Item Weight: 7.19 pounds
  • Product Dimensions: 39.98"L x 6.97"W x 7.48"H

8. Warranty and Support

This BLACK+DECKER product is covered by a manufacturer's warranty. For detailed warranty information, product registration, or technical support, please refer to the documentation included with your product or visit the official BLACK+DECKER website.

Always use genuine BLACK+DECKER replacement parts and accessories to ensure optimal performance and safety.