1. Introduction
This manual provides essential information for the safe and effective operation, maintenance, and troubleshooting of your BLACK+DECKER GL9035 Grass Trimmer. Please read this manual thoroughly before using the product and retain it for future reference.
The BLACK+DECKER GL9035 is a powerful 900W grass trimmer designed for efficient lawn care. It features a 35 cm cutting width, an Automatic Line System (AFS) with double line for continuous trimming, and a versatile design that allows for easy conversion to an edger with an integrated edge guide and wheel for clean, precise cuts.

Figure 1: The BLACK+DECKER GL9035 Grass Trimmer, showcasing its ergonomic design and cutting head.
2. Safety Information
WARNING: Read all safety warnings and all instructions. Failure to follow the warnings and instructions may result in electric shock, fire and/or serious injury.
General Safety Rules:
- Keep work area clear: Cluttered areas invite injuries.
- Consider work area environment: Do not expose power tools to rain or use them in damp or wet locations. Keep work area well lit.
- Guard against electric shock: Avoid body contact with grounded surfaces such as pipes, radiators, ranges, and refrigerators.
- Keep children away: Do not let visitors contact the tool or extension cord. All visitors should be kept away from the work area.
- Dress properly: Do not wear loose clothing or jewelry. They can be caught in moving parts. Use of rubber gloves and substantial footwear is recommended when working outdoors. Wear protective hair covering to contain long hair.
- Use safety glasses and hearing protection: Always wear eye protection. Use a face or dust mask if operation is dusty.
- Do not overreach: Keep proper footing and balance at all times.
- Maintain tools with care: Keep cutting tools sharp and clean for better and safer performance. Follow instructions for lubricating and changing accessories. Inspect tool cords periodically and if damaged, have them repaired by an authorized service facility. Inspect extension cords periodically and replace if damaged. Keep handles dry, clean, and free from oil and grease.
- Disconnect tools: Disconnect the plug from the power source before making any adjustments, changing accessories, or storing the tool.
- Avoid unintentional starting: Do not carry tool with finger on switch. Be sure switch is off when plugging in.
- Outdoor use extension cords: When tool is used outdoors, use only extension cords intended for outdoor use and so marked.
- Stay alert: Watch what you are doing. Use common sense. Do not operate tool when you are tired.
3. Package Contents
Upon opening the package, ensure all components are present and undamaged. If any parts are missing or damaged, contact your retailer immediately.
- BLACK+DECKER GL9035 Grass Trimmer Unit
- Cutting Line Spool (pre-installed or separate)
- Protective Guard
- Auxiliary Handle
- Edge Wheel (integrated or attachable)
- Instruction Manual

Figure 2: Example of cutting line and spool, which may be included or purchased separately.
4. Assembly and Setup
Before assembly, ensure the trimmer is unplugged from the power source.
4.1 Attaching the Protective Guard
- Align the protective guard with the slots on the trimmer head.
- Push firmly until it clicks into place. Ensure it is securely fastened before use.
4.2 Attaching the Auxiliary Handle
- Slide the auxiliary handle onto the main shaft.
- Adjust the handle to a comfortable working position and tighten the locking mechanism.

Figure 3: Adjusting the auxiliary handle for optimal comfort and control.
4.3 Adjusting the Shaft Length (if applicable)
The GL9035 features an adjustable shaft for user comfort. Loosen the collar, extend or retract the shaft to the desired length, and then securely tighten the collar.

Figure 4: The adjustable handle mechanism, allowing for multiple grip positions.
5. Operation
5.1 Starting and Stopping
- To start: Connect the trimmer to a suitable power outlet. Press and hold the safety lock-off button, then squeeze the trigger switch.
- To stop: Release the trigger switch.
5.2 Trimming Grass
Hold the trimmer firmly with both hands. Swing the trimmer from side to side, keeping the cutting head parallel to the ground. The Automatic Line System (AFS) will feed new line as needed during operation.

Figure 5: The trimmer effectively cutting through overgrown grass.
5.3 Edging Function
The GL9035 can be easily converted for edging. Rotate the trimmer head 90 degrees to position the cutting line vertically. Use the integrated edge wheel and guide to maintain a consistent cutting depth along pathways and flowerbeds.

Figure 6: The trimmer head pivots for easy conversion between trimming and edging modes.

Figure 7: The trimmer in edging configuration, demonstrating its ability to create neat lawn borders.
6. Maintenance
Regular maintenance ensures optimal performance and extends the life of your trimmer. Always unplug the trimmer before performing any maintenance.
6.1 Cleaning
After each use, clean the trimmer housing and guard with a damp cloth. Remove any grass clippings or debris from the cutting head and ventilation slots. Do not use harsh chemicals or abrasive cleaners.
6.2 Replacing the Cutting Line
When the cutting line is depleted, it needs to be replaced. The GL9035 uses a double line system. Refer to the specifications for the correct line diameter.
- Unplug the trimmer.
- Press the tabs on the spool cover and remove it.
- Remove the empty spool.
- Insert a new pre-wound spool, ensuring the line ends are threaded through the eyelets.
- Replace the spool cover, ensuring it clicks securely into place.

Figure 8: Example of replacement cutting lines for the trimmer.
7. Troubleshooting
If you encounter issues with your trimmer, consult the table below before contacting customer service.
| Problem | Possible Cause | Solution |
|---|---|---|
| Trimmer does not start | No power supply; Power cord damaged; Safety lock-off not engaged; Trigger switch faulty. | Check power connection and circuit breaker. Inspect power cord for damage; if damaged, have it replaced by an authorized service center. Ensure safety lock-off button is pressed before squeezing trigger. Contact service if switch is faulty. |
| Cutting line does not feed | Line tangled or jammed; Spool empty; Line too short; Spool cover not properly installed. | Unplug and clear any tangles. Replace spool if empty. Ensure line is long enough to extend from spool. Reinstall spool cover securely. |
| Motor runs but line does not spin | Spool not properly seated; Debris in cutting head. | Unplug and re-seat the spool correctly. Unplug and clear any debris from the cutting head mechanism. |
| Excessive vibration | Damaged cutting line or spool; Loose components. | Inspect cutting line and spool for damage and replace if necessary. Check all fasteners and ensure components are securely attached. |
8. Specifications
| Feature | Detail |
|---|---|
| Model Number | GL9035 |
| Power Source | Corded Electric |
| Power Rating | 900 W |
| Cutting Width | 35 cm (13.78 inches) |
| Item Weight | 3.2 kg (7.04 pounds) |
| Product Dimensions | Approx. 5.91"L x 5.31"W (dimensions for the head/base, not overall) |
| Speed | 7000 RPM |
| Line System | Automatic Line System (AFS) with Double Line |
| Features | Edge Cut, Edge Guide, Edge Wheel |
9. Warranty and Support
BLACK+DECKER products are manufactured to high quality standards and are guaranteed for professional and domestic use. For detailed warranty information, please refer to the warranty card included with your product or visit the official BLACK+DECKER website.
For technical support, spare parts, or service, please contact BLACK+DECKER customer service or an authorized service center in your region. Always provide the model number (GL9035) and serial number (if applicable) when seeking support.
You can find more information and support resources on the official BLACK+DECKER website: www.blackanddecker.com







