Worx WG163 Manual: A Comprehensive Guide
Welcome! This detailed manual assists users in maximizing their Worx WG163 cordless string trimmer’s performance, covering all aspects from setup to maintenance.
The Worx WG163 is a popular cordless string trimmer designed for homeowners seeking a lightweight and efficient solution for yard maintenance. This manual provides a comprehensive guide to understanding and operating your new trimmer effectively. It details everything from initial assembly and safe operation to troubleshooting and maintenance procedures.
This user-friendly tool boasts the convenience of battery power, eliminating the need for cords and offering greater maneuverability. We’ll explore its key features, ensuring you can tackle trimming tasks with confidence and achieve professional-looking results. Prepare to unlock the full potential of your Worx WG163!
Safety Precautions
Prioritize safety! Always wear appropriate eye and ear protection when operating the Worx WG163. Securely fasten all guards and shields before each use. Keep bystanders, especially children and pets, a safe distance away from the trimming area. Inspect the trimmer for any damage before operation, and never use a damaged tool.
Avoid operating in wet conditions or near flammable materials. Disconnect the battery pack when not in use, during maintenance, and before changing accessories. Never attempt to modify the trimmer in any way. Following these precautions will ensure a safe and enjoyable trimming experience.
Package Contents & Parts Identification
Verify contents! Upon opening the package, ensure you have the Worx WG163 string trimmer, a 20V Power Share battery, and a charger. Also included are the spool with trimmer line, a bump feed head, and an auxiliary handle. Carefully check against the parts list to confirm everything is present.
Familiarize yourself with key components like the motor housing, shaft, trimmer head, and battery compartment. Proper identification of these parts is crucial for assembly, operation, and future maintenance. Retain this manual for future reference regarding parts and diagrams.
Identifying Key Components
Essential parts! The motor housing contains the motor and drives the trimmer line. The shaft connects the motor housing to the trimmer head, providing reach. The trimmer head houses the spool and line, delivering cutting power. The auxiliary handle offers enhanced control and comfort during operation.
Recognize the bump feed knob for line advancement and the battery compartment for easy power access. Understanding each component’s function streamlines assembly and troubleshooting. Refer to the parts diagram for visual clarity and accurate identification of each key element of your Worx WG163.
Parts Diagram Overview
Visual guide! The diagram illustrates the complete Worx WG163 assembly, clearly labeling each component. Key areas include the motor housing, shaft assembly, trimmer head, auxiliary handle, and battery compartment. Numbered callouts correspond to a detailed parts list, facilitating easy identification.
Use the diagram during assembly to ensure correct component placement. It’s invaluable for understanding how parts interact and for ordering replacements. Familiarize yourself with the diagram before beginning any maintenance or repairs; This visual resource simplifies troubleshooting and maximizes your trimmer’s lifespan.
Assembly Instructions
Begin assembly on a clean, flat surface. First, carefully unpack all components and verify against the parts list. Follow these steps for a secure and functional setup. Incorrect assembly may affect performance and safety. Refer to the parts diagram for visual guidance throughout the process.
The initial steps involve attaching the handle and shaft, ensuring a comfortable and ergonomic grip. Next, install the string trimmer head, confirming it’s securely locked in place. Double-check all connections before proceeding to operating instructions.
Attaching the Handle & Shaft
Begin by aligning the handle with the designated slots on the trimmer shaft. Ensure proper orientation before inserting, typically indicated by markings. Secure the handle using the provided screws and tighten firmly with a screwdriver – do not overtighten.
Adjust the handle to your preferred ergonomic position for comfortable operation. The shaft then connects to the motor head, aligning the connection points and twisting to lock; Verify a secure fit before use; a loose connection can compromise safety and performance.

Installing the String Trimmer Head
First, ensure the trimmer is switched off and the battery is removed for safety. Locate the trimmer head attachment point on the shaft. Align the head with the shaft, often requiring a specific orientation – check for matching arrows or symbols.
Push the head firmly onto the shaft and twist clockwise until it locks into place. Confirm a secure connection by attempting to pull the head off gently. Load the trimmer line if not pre-loaded, following the instructions for the automatic feed system.
Operating Instructions
Before operation, always inspect the trimmer for damage and ensure the string is properly loaded. To power on, insert the battery and press the locking button, then squeeze the trigger. Variable speed control is achieved by adjusting the pressure on the trigger – lighter pressure for delicate trimming, full pressure for thicker weeds.
Maintain a safe distance from obstacles and bystanders. Avoid tilting the trimmer head excessively to prevent debris from flying towards you. Regularly check the string length and reload as needed for optimal performance.
Powering On/Off & Variable Speed Control
To initiate operation, firmly insert the fully charged battery into the trimmer. Press the safety lock-out button, then squeeze the trigger to activate the motor. Releasing the trigger immediately stops the string head. Variable speed is intuitively controlled by trigger pressure; a gentle squeeze yields lower speed for delicate areas.

Increased pressure delivers maximum power for tackling tougher weeds. Always ensure the safety lock-out is engaged when not actively trimming. Monitor battery level via the indicator lights for uninterrupted use.

Trimming Techniques & Best Practices
For optimal results, utilize a sweeping motion, maintaining a slight angle towards the vegetation. Avoid forcing the trimmer; let the rotating string do the work. Trim in layers, starting with taller weeds and gradually working downwards. Be mindful of obstacles like fences and landscaping features.
To prevent scalping, avoid direct contact with the ground. Regularly clear cut grass and debris to maintain efficiency. Consider trimming along edges first, then moving to larger areas. Always wear appropriate safety gear, including eye protection.
String Replacement
Maintaining optimal string length is crucial for efficient trimming. The Worx WG163 features an automatic feed system, simplifying string advancement during operation. However, manual replacement is sometimes necessary when the string is completely depleted or broken. Ensure the trimmer is switched off and the battery removed before any maintenance. Access the string trimmer head and carefully remove the spool cover.
Inspect the spool for any damage and replace if needed. Wind the new string onto the spool, following the directional arrows. Reassemble the head, ensuring the string is properly threaded through the eyelets.
Automatic Feed System Explained
The Worx WG163 utilizes a convenient automatic feed system to extend the trimmer string without manual intervention. During operation, tapping the trimmer head gently on the ground while running activates the system. This action releases additional string from the spool, maintaining the optimal cutting length. The system relies on centrifugal force and a spring-loaded mechanism.
Ensure you tap with moderate force; excessive force may cause unnecessary string feed. Regularly check the string length and spool condition for optimal performance. If the system fails to feed, manual replacement may be required.

Replacing the String Manually
When the automatic feed system isn’t sufficient, manually replacing the trimmer string is straightforward. First, disconnect the battery for safety. Then, locate and remove the trimmer head cover, typically by pressing release tabs. Pull out the empty spool and discard it responsibly. Insert a new spool of compatible Worx string, ensuring it winds in the correct direction as indicated on the head.
Secure the new spool, replace the cover, and reconnect the battery. Always use genuine Worx replacement string for optimal performance and safety.
Battery & Charger Information
The Worx WG163 utilizes a 20V Power Share battery, offering versatility across various Worx tools. Proper battery care is crucial for longevity and performance. Always use the supplied Worx charger to avoid damage. Charging times vary depending on the battery’s state of discharge, typically ranging from 2 to 4 hours. Avoid overcharging, and store batteries in a cool, dry place.
Regularly check the battery for any signs of damage and never disassemble it. Optimal performance is achieved with fully charged batteries.
Battery Charging Procedures
To charge the Worx WG163’s 20V battery, insert it firmly into the designated charger. The charger’s LED indicator will illuminate, typically red during charging and green when fully charged. Ensure the charger is connected to a standard electrical outlet. Avoid using extension cords if possible, and if necessary, use a heavy-duty outdoor-rated cord.
Do not interrupt the charging cycle until the LED indicates completion. A full charge typically takes 2-4 hours. Always disconnect the charger when not in use.
Battery Care & Maintenance
To maximize battery life, avoid completely discharging the 20V battery before recharging. Store the battery in a cool, dry place, away from direct sunlight and extreme temperatures. Periodically check the battery terminals for corrosion and clean them with a dry cloth if necessary. Do not disassemble or modify the battery pack.
Only use the supplied Worx charger for recharging. Improper charging can damage the battery and void the warranty. Consider purchasing a second battery for uninterrupted use.
Maintenance & Troubleshooting
Regular maintenance ensures optimal performance and extends the life of your Worx WG163. After each use, clean the trimmer head and shaft, removing grass clippings and debris. Inspect the string trimmer line for wear and replace as needed. Store the trimmer in a dry location to prevent corrosion.
If issues arise, consult the troubleshooting section for common problems and solutions. Always disconnect the battery before performing any maintenance or troubleshooting steps. Refer to the warranty information for service options.
Cleaning & Storage
Post-use cleaning is crucial for longevity. Always disconnect the battery before cleaning. Remove grass clippings and debris from the trimmer head, shaft, and motor housing using a soft brush or cloth. Avoid using water directly on the motor or electrical components.
For storage, keep the WG163 in a dry, cool place, away from direct sunlight and extreme temperatures. Ensure the battery is stored separately, following the battery care guidelines. Proper storage prevents corrosion and maintains optimal performance.
Common Issues & Solutions
If the trimmer won’t start, first check the battery charge and ensure it’s securely connected. Verify the safety lock is disengaged. For string breakage, ensure correct string installation and avoid trimming against hard surfaces. If the line feed is inconsistent, clean the trimmer head and check for obstructions.
Should overheating occur, allow the trimmer to cool down before resuming use. Persistent issues may require contacting Worx customer support for assistance. Regular maintenance prevents many common problems.
Technical Specifications
The Worx WG163 operates on a 20V battery system, delivering efficient cordless power. Voltage is consistently 20V, while amperage varies depending on the battery model used (typically 2.0Ah or 4.0Ah). Cutting swath measures 12 inches, providing a reasonable trimming width. The trimmer’s weight, without the battery, is approximately 5.1 pounds, ensuring manageable handling.
String diameter is 0.065 inches, suitable for general yard work. Maximum RPM reaches around 8,500, offering sufficient cutting speed. These specifications contribute to the WG163’s overall performance and usability.
Voltage & Amperage Details
The Worx WG163 utilizes a 20V Power Share battery platform, offering compatibility across a range of Worx tools. Voltage remains constant at 20V, ensuring consistent power output. Amperage, however, can vary based on the battery model selected – commonly 2.0Ah, 3.0Ah, or 4.0Ah options are available.
Higher amperage translates to longer runtime between charges. Using a 4.0Ah battery will provide significantly more trimming time compared to a 2.0Ah battery. Always check your battery’s label for specific amperage details.
Cutting Swath & Weight
The Worx WG163 boasts a 12-inch cutting swath, enabling efficient trimming of lawns and edges in a single pass. This width strikes a balance between speed and maneuverability. Regarding weight, the trimmer (with a 2.0Ah battery) typically weighs around 5.1 pounds.
This lightweight design minimizes user fatigue during extended use. However, battery size impacts overall weight; a 4.0Ah battery will add some heft. Its balanced construction further enhances user comfort and control while operating.

Warranty Information
Worx provides a standard warranty for the WG163, typically covering manufacturing defects for a period of three years from the date of purchase. This warranty encompasses defects in materials and workmanship under normal use. However, it doesn’t cover items damaged through misuse, accidents, or unauthorized modifications.
To make a claim, retain your proof of purchase and contact Worx customer support. Battery packs often have a separate, shorter warranty period, usually one year. Registering your product online can streamline the warranty process.
Understanding the Worx Power Share System
The Worx Power Share platform is a key benefit of owning the WG163. It allows you to utilize the same 20V MAX lithium-ion battery across a wide range of Worx tools – lawn care, power tools, and more! This eliminates the need for multiple chargers and batteries, saving you money and storage space.
Batteries and chargers are sold separately, offering flexibility; Investing in additional Power Share tools expands your versatility. Check compatibility before purchasing, ensuring the tool supports the 20V MAX system.
Accessories Compatible with WG163
Enhance your Worx WG163’s capabilities with a range of compatible accessories! Consider the Spool Replacement Line for continuous trimming, ensuring you’re never caught short mid-task. For more demanding jobs, explore the Grass & Weed Edger attachment, providing precise edging along sidewalks and driveways.
Worx also offers a Power Share Pro wheel kit for easier maneuverability on larger properties. These accessories, sold separately, significantly broaden the trimmer’s functionality, adapting it to diverse landscaping needs. Always verify compatibility before purchasing any add-ons.
Optional Heads & Attachments

Expand the versatility of your WG163 with optional heads! The String Trimmer Head is standard, but consider the Edger attachment for crisp, clean edges along paths and gardens. For tackling tougher weeds, the Brush Cutter head provides increased power and durability.
Additionally, the Hedge Trimmer attachment allows for quick and easy hedge maintenance, all powered by the same Worx Power Share battery. These interchangeable heads transform your trimmer into a multi-tool, saving space and money. Ensure proper installation and safety precautions when switching attachments.
Frequently Asked Questions (FAQ)
Q: Why won’t my WG163 start? A: Ensure the battery is fully charged and correctly inserted. Check the safety lock-out button is engaged. Q: How do I replace the trimmer string? A: Utilize the automatic feed system or manually replace the string following the instructions in the manual.
Q: Is the WG163 compatible with other Worx tools? A: Yes, it’s part of the Power Share system, using the same battery across multiple tools. Q: How do I store the trimmer for long periods? A: Clean and store in a dry place, away from direct sunlight;
Troubleshooting Guide ౼ Detailed
Problem: Trimmer Won’t Start – Verify the battery charge and connection. Inspect the safety lock-out button; it must be engaged. Check for debris obstructing the trimmer head. Problem: String Breaks Frequently – Ensure you’re using the correct string diameter specified in the manual. Reduce trimming against hard surfaces.
Problem: Weak Trimming Performance – A low battery can cause this. Also, check for a clogged trimmer head or worn-out string. Problem: Automatic Feed Not Working – Clean the trimmer head and ensure the string is properly loaded.

Problem: Trimmer Won’t Start
Possible Cause 1: The battery isn’t fully charged or isn’t properly connected. Ensure the battery clicks securely into place. Try a different, known-good battery if available. Possible Cause 2: The safety lock-out button isn’t engaged. Press and hold this button while squeezing the trigger. Possible Cause 3: Debris is blocking the trimmer head. Carefully inspect and remove any grass, weeds, or obstructions.
Possible Cause 4: A faulty trigger switch. Contact customer support for assistance if the issue persists after checking these points.
Problem: String Breaks Frequently
Possible Cause 1: Using string that is too thin for the job. Thicker string is needed for tougher weeds and brush. Refer to the specifications for the correct string diameter. Possible Cause 2: Trimming against hard surfaces like fences or concrete. Avoid direct contact with these obstacles. Possible Cause 3: The trimmer head is damaged or worn.
Inspect the head for cracks or breaks and replace if necessary. Possible Cause 4: Incorrect string installation. Ensure the string is loaded correctly into the spool, following the manual’s instructions.
Customer Support & Contact Information
For assistance with your Worx WG163, please utilize our comprehensive online support resources at worx.com/support. Here you’ll find FAQs, troubleshooting guides, and downloadable manuals. To speak with a representative, call our customer service hotline at 1-866-496-7992, available Monday-Friday, 9 AM to 5 PM EST.
You can also reach us via email at worxsupport@positec.com. Please include your model number (WG163) and a detailed description of your issue for faster service. For parts inquiries, visit worxparts.com.

Disposal and Recycling Information

Responsible disposal is crucial. Do not dispose of your Worx WG163 or its battery pack with household waste. Lithium-ion batteries contain materials that can harm the environment if improperly handled. Please participate in local recycling programs designed for electronic waste and batteries.
Contact your local waste management authority for information on designated drop-off locations. Alternatively, visit call2recycle.org for battery recycling options. Proper disposal ensures environmental protection and resource conservation, aligning with our sustainability commitment.
















































































