Dewalt DCST920P1 Manual

The Dewalt DCST920P1 is a 20V MAX Lithium Ion Brushless Cordless String Trimmer designed for efficient trimming and edging. It features a lightweight design, adjustable height, and a 13-inch cutting swath, making it ideal for maintaining your lawn and garden. The trimmer is equipped with a brushless motor for longer runtime and durability, and it comes with a 5.0Ah battery and charger. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

Features at a Glance

Key components: Brushless motor, 20V MAX battery, adjustable height, 13-inch cutting swath, lightweight design.

Feature	Description
Brushless motor	Provides longer runtime and durability
20V MAX battery	Compatible with other Dewalt 20V tools
Adjustable height	Customizable for user comfort
13-inch cutting swath	Efficient trimming and edging
Lightweight design	Easy to maneuver

Installation

Unpack and inspect contents. Ensure all parts are included.

1. Attach the handle: Align and secure the handle to the trimmer body.
2. Install the battery: Insert the battery into the trimmer until it clicks.
3. Check the line: Ensure the cutting line is properly installed and adjusted.
4. Plug in the charger: Charge the battery fully before first use.

WARNING! Always wear safety goggles and gloves while operating the trimmer.

First-Time Setup

Power on the trimmer; follow the instructions for initial setup.

1. Adjust the height: Set the handle to a comfortable height for operation.
2. Check battery level: Ensure the battery is charged before use.
3. Test the trimmer: Turn on the trimmer to ensure it operates correctly.

CAUTION! Ensure the area is clear of obstacles before operating.

Specifications

• Voltage: 20V MAX.
• Motor Type: Brushless.
• Cutting Swath: 13 inches.
• Battery: 5.0Ah Lithium Ion.
• Weight: 8.5 lbs.
• Runtime: Up to 60 minutes on a full charge.
• Charging Time: 75 minutes with fast charger.

Controls and Settings

Access controls on the handle for easy operation. Features include power switch, speed settings, and height adjustment.

Power switch: Located on the handle for easy access.

Speed settings: Adjust speed based on trimming needs.

Height adjustment: Customize for user comfort.

Connecting Devices

No external devices are required for operation; simply ensure the battery is charged.

1. Ensure the trimmer is off before connecting the battery.
2. Match the battery to the correct slot.

Tip: Always check battery compatibility with other Dewalt tools.

Operating the Trimmer

Follow these steps for effective trimming:

1. Power on the trimmer: Press the power switch to start.
2. Adjust speed: Set the speed according to the thickness of the grass.
3. Trim: Move the trimmer in a sweeping motion for best results.
4. Power off: Turn off the trimmer after use.

WARNING! Keep hands and feet away from the cutting area while operating.

Maintenance

Regular maintenance is essential for optimal performance.

1. Clean the trimmer after each use: Remove grass clippings and debris.
2. Check the cutting line: Replace if worn or damaged.
3. Inspect the battery: Ensure contacts are clean and free of corrosion.

Care & Cleaning

Unplug and remove the battery before cleaning. Use a dry cloth to wipe the trimmer.

CAUTION! Do not use water or cleaning solvents on the trimmer.

Regulatory Information

This product complies with all applicable regulations and standards. For support, visit www.dewalt.com or contact customer service.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Trimmer does not start	Battery not charged	Charge the battery fully before use.
Cutting line not advancing	Line is jammed	Remove the line and reinstall properly.
Trimmer vibrates excessively	Loose parts	Check and tighten all screws and bolts.
Battery not charging	Faulty charger	Test with another charger or contact support.

Reset: If issues persist, consult the manual for reset instructions.

Service: For service inquiries, contact Dewalt customer support.