HYECHO MJ8602

HYECHO 18V Cordless Grass Trimmer User Manual

Model: MJ8602

1. Introduction

Thank you for choosing the HYECHO 18V Cordless Grass Trimmer. This powerful and versatile tool is designed for efficient lawn and garden maintenance, offering cordless freedom and user-friendly features. Please read this manual carefully before operation to ensure safe and optimal performance.

This grass trimmer features a robust electric motor, a 25cm cutting diameter, and a 1.2mm nylon line, delivering 7500 RPM for effective trimming and edging. Its ergonomic design includes a telescopic tube, a 90° pivoting head, and an adjustable auxiliary handle for comfortable use.

2. Safety Information

WARNING: Always read and understand all safety warnings, instructions, illustrations, and specifications provided with this power tool. Failure to follow all instructions listed below may result in electric shock, fire, and/or serious injury.

To ensure safe operation and prevent injury, observe the following:

  • Always maintain the trimmer in the correct direction to avoid injuries from flying grass clippings.
  • Always use the protective shield to guard against grass clippings.
  • Ensure the plant guard is activated to protect flowers and shrubs from damage.
  • Read the user manual carefully before using the trimmer and follow all safety instructions.
  • Wear appropriate personal protective equipment, including eye protection, gloves, and sturdy footwear.
  • Keep bystanders, children, and pets at a safe distance from the operating area.
  • Do not operate the trimmer in wet conditions or rain.
  • Before performing any maintenance or cleaning, ensure the battery is removed.

3. Package Contents

Upon opening the package, verify that all items listed below are present and undamaged:

  • 1x HYECHO Cordless Grass Trimmer
  • 1x 18V 2.0Ah Lithium-ion Battery
  • 1x 2.0A Battery Charger
  • 1x 5m Cutting Line (pre-installed or separate spool)
  • 1x Edging Wheel
  • 1x User Manual
HYECHO 18V Cordless Grass Trimmer and included accessories: battery, charger, and cutting line spool.

Image: The HYECHO 18V Cordless Grass Trimmer with its main components: the trimmer unit, an 18V 2.0Ah battery, a battery charger, and a spool of cutting line.

4. Product Overview

Familiarize yourself with the components of your HYECHO Grass Trimmer:

Labeled diagram of HYECHO 18V Cordless Grass Trimmer components.

Image: A detailed diagram highlighting key parts of the trimmer, including the power trigger, adjustable auxiliary handle, telescopic aluminum pole, head rotation button, and automatic line feed system.

  • Power Trigger: Activates the motor.
  • Adjustable Auxiliary Handle: Can be adjusted 180° for ergonomic comfort.
  • Telescopic Aluminum Pole: Adjustable length from 1m to 1.3m.
  • Head Rotation Button: Allows quick conversion between trimming and edging modes.
  • Automatic Line Feed System (AFS): Automatically feeds cutting line as needed.
  • 25.4 cm Protective Guard: Shields the user from debris.
  • Edging Wheel: Provides support and guidance for precise edging.
  • Retractable Plant Guard: Protects delicate plants from the cutting line.
  • Powerful Motor: Delivers 7500 RPM for efficient cutting.

5. Setup

5.1. Battery Charging

Before first use, fully charge the 18V 2.0Ah Lithium-ion battery. Connect the charger to a power outlet and insert the battery. The charger typically indicates charging status with an LED light. A full charge takes approximately 1 hour.

5.2. Attaching the Battery

Slide the charged battery into the battery slot on the trimmer handle until it clicks securely into place.

Inserting the battery into the HYECHO grass trimmer.

Image: A hand inserting the 18V battery into the designated slot on the trimmer's handle, ensuring a secure connection.

5.3. Adjusting the Telescopic Pole

Loosen the locking collar on the telescopic pole and extend or retract the pole to a comfortable working height (between 1m and 1.3m). Tighten the locking collar to secure the pole in position.

HYECHO grass trimmer showing adjustable telescopic pole length.

Image: The trimmer shown at its minimum (104cm) and maximum (134cm) extended lengths, demonstrating the adjustable telescopic pole feature.

5.4. Adjusting the Auxiliary Handle

The auxiliary handle can be adjusted 180° to suit your grip and working posture. Loosen the handle adjustment knob, position the handle, and then tighten the knob.

6. Operating Instructions

6.1. Starting and Stopping

To start the trimmer, press the safety lock-off button (if present) and then squeeze the power trigger. To stop, release the power trigger.

6.2. Trimming Operation

Hold the trimmer firmly with both hands. Swing the trimmer from side to side, keeping the cutting head parallel to the ground. Use the plant guard to protect desired plants and objects.

User operating the HYECHO grass trimmer on a lawn.

Image: A person using the HYECHO grass trimmer to cut grass on a lawn, demonstrating its ease of use for landscape maintenance.

6.3. Edging Operation (2-in-1 Function)

The trimmer head can pivot 90° to convert into an edger. Press the head rotation button and rotate the head until it locks into the edging position. The integrated edging wheel provides stability and guides the trimmer along edges for clean, precise lines.

HYECHO grass trimmer showing 2-in-1 trimming and edging modes.

Image: A split image showing the trimmer in both its grass trimming mode (left) and its edging mode (right), highlighting its versatile 2-in-1 functionality.

6.4. Pivoting Head Angles

The trimmer head offers multiple inclination angles (0°, 22.5°, 45°, 67.5°, 90°) for versatile cutting in various situations, including under benches or around obstacles. Adjust the angle by pressing the head rotation button and tilting the head to the desired position.

Diagram showing various pivoting head angles of the HYECHO grass trimmer.

Image: A visual representation of the trimmer head's adjustable angles, ranging from 0° to 90° and 180°, allowing for flexible operation in different garden areas.

7. Maintenance

7.1. Cleaning

After each use, remove the battery and clean the trimmer head and protective guard with a brush or damp cloth. Ensure no grass clippings or debris are obstructing the cutting line mechanism.

7.2. Replacing the Cutting Line

The trimmer features an automatic line feed system. When the line becomes too short, it will automatically feed more. If the line runs out or breaks, follow these steps to replace the spool:

  1. Ensure the battery is removed.
  2. Press the tabs on the spool cover and remove it.
  3. Remove the empty spool.
  4. Insert a new 1.2mm nylon line spool, ensuring the line is threaded through the eyelet.
  5. Replace the spool cover, ensuring it clicks into place.
Step 1: Removing the old cutting line spool.

Image: A hand demonstrating how to remove the old cutting line spool from the trimmer head.

Step 2: Inserting the new cutting line spool.

Image: A hand inserting a new spool of cutting line into the trimmer head, ensuring proper alignment.

Step 3: Threading the cutting line through the eyelet.

Image: A hand threading the cutting line through the designated eyelet on the trimmer head.

Step 4: Replacing the spool cover.

Image: A hand replacing the spool cover onto the trimmer head, securing the new cutting line spool in place.

8. Troubleshooting

ProblemPossible CauseSolution
Trimmer does not start.Battery not inserted correctly or not charged.Ensure battery is fully charged and securely inserted.
Cutting line does not feed.Line tangled or empty spool.Remove battery, clear any tangles, or replace the cutting line spool.
Reduced cutting performance.Cutting line worn or incorrect line type.Replace with new 1.2mm nylon cutting line.
Excessive vibration.Damaged cutting head or unbalanced line.Inspect cutting head for damage. Ensure line is properly installed and balanced.

9. Specifications

  • Model: MJ8602
  • Voltage: 18V
  • Battery Type: Lithium-ion
  • Battery Capacity: 2.0Ah
  • No-Load Speed: 7500 RPM
  • Cutting Diameter: 25 cm (9.8 inches)
  • Cutting Line Diameter: 1.2 mm
  • Telescopic Pole Length: 100 cm - 130 cm (approx. 39.4 - 51.2 inches)
  • Product Dimensions (L x W x H): 100 x 19.5 x 11 cm (approx. 39.4 x 7.7 x 4.3 inches)
  • Weight (with battery): 2.1 kg (approx. 4.6 lbs)
  • Color: Green + Red + Black

10. Warranty and Support

HYECHO provides a 2-year warranty for this product, covering defects in materials and workmanship under normal use. This warranty does not cover damage caused by misuse, abuse, neglect, unauthorized repairs, or normal wear and tear.

For warranty claims, technical support, or any questions regarding your HYECHO Cordless Grass Trimmer, please contact HYECHO customer service. Please have your model number (MJ8602) and purchase information ready when contacting support.

Contact information can typically be found on the HYECHO official website or through your retailer's support channels.

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