1. Product Overview
The JTEYINH 128LD Trimmer Head is a replacement tap advance string trimmer head designed for various Husqvarna models. This package includes two trimmer heads, providing a convenient solution for maintaining your string trimmer. It is engineered to hold different gauges of trimmer line and features a specific thread size for secure attachment.
Image 1.1: Front and bottom view of the JTEYINH 128LD Trimmer Head, showing the blue tap button and line exits.
Key features include:
- Tap Advance String Trimmer Head mechanism for easy line feeding.
- Compatible with 0.065-inch, 0.080-inch, or 0.095-inch gauge trimmer line.
- M10 x 1.25 Left Hand thread size for secure attachment.
- Replaces original part numbers: 537338306, 537338310, 966674401, 537338302.
2. Compatibility
This trimmer head is designed to fit a wide range of Husqvarna string trimmer models. Please verify your model number against the list below to ensure compatibility.
Compatible Husqvarna Models:
- 122LDX
- 123L
- 123LD
- 125L
- 128L
- 128LD
- 128LDX
- 129L
- 129LDX
- 129DJX
- 223L
- 224L
- 225L
- 225LD
- 225R
- 225RJ
- 232L
- 232R
- 235RJX
- 240L
- 322L
- 322R
- 323L
- 323LD
- 323R
- 323RJ
- 324LX
- 324LDX
- 324RX
- 325LX
- 325RX
- 325RDX
- 325RJX
- 325L
- 343F
- 343R
- 345FX
- 345RX
- 345FXT
- 326L
- 326LS
- 326LX
- 326LDX
- 326RX
- 326RJX
- 327LS
- 327RJX
- 329LDX
- 336FR
- 426LST
- 430LS
- 525LS
- 525 Weed Eater
Image 2.1: Visual representation of compatible Husqvarna models and the specific thread size (M10 x 1.25 LHF) for the trimmer head.
3. Specifications
Detailed specifications for the JTEYINH 128LD Trimmer Head are provided below:
| Feature | Detail |
|---|---|
| Product Dimensions | 4.2 x 4 x 2.3 inches (approximate) |
| Item Weight | 1.22 pounds |
| Model Number | 128LD |
| Thread Size | M10 x 1.25 Left Hand |
| Compatible Line Gauge | 0.065-inch, 0.080-inch, or 0.095-inch |
| Replaces Part Numbers | 537338306, 537338310, 966674401, 537338302 |
| Country of Origin | China |
Image 3.1: Dimensional overview of the 128LD Trimmer Head, including width, height, and button diameter, along with compatible line gauges.
4. Installation
Follow these steps to properly install the JTEYINH 128LD Trimmer Head onto your compatible Husqvarna string trimmer.
Installation Steps:
- Safety First: Before beginning, ensure your string trimmer's engine is off and cool. Disconnect the spark plug wire to prevent accidental starting. Wear appropriate safety gear, including gloves and eye protection.
- Remove Old Trimmer Head: If replacing an existing head, you may need to use a wrench or a locking pin (often provided with your trimmer) to hold the shaft in place while unscrewing the old head. Most trimmer heads have a left-hand thread, meaning you turn clockwise to loosen and counter-clockwise to tighten.
- Inspect Shaft: Clean any debris from the trimmer shaft's threads. Ensure the shaft is not damaged.
- Attach New Trimmer Head: Align the JTEYINH 128LD Trimmer Head with the trimmer shaft. The head features an M10 x 1.25 Left Hand thread. Turn the new trimmer head counter-clockwise onto the shaft until it is hand-tight.
- Secure Tightening: Use a wrench or the locking pin method to fully tighten the trimmer head. Ensure it is securely fastened to prevent it from loosening during operation. Do not overtighten.
- Re-engage Spark Plug: Once the head is securely installed, re-connect the spark plug wire.
Image 4.1: Detail of the M10 x 1.25 Left Hand thread inside the trimmer head, crucial for proper installation.
5. Operation
The JTEYINH 128LD Trimmer Head utilizes a tap advance mechanism for convenient line feeding during operation.
Line Feeding (Tap Advance):
- To advance the trimmer line, start the trimmer engine and bring it to full operating speed.
- Lightly tap the bottom of the trimmer head on a firm, flat surface (such as the ground). The centrifugal force will cause the line to extend.
- Avoid tapping too hard or repeatedly, as this can over-feed the line or damage the head.
- The trimmer's line cutting blade (if equipped) will automatically trim the line to the correct length.
Loading New Trimmer Line:
Refer to your trimmer's specific manual for detailed instructions on how to open the trimmer head and load new line. Generally, this involves pressing tabs on the side of the head to remove the spool, winding new line onto the spool, and reassembling. Ensure you use line within the recommended gauges (0.065-inch, 0.080-inch, or 0.095-inch).
Image 5.1: Example of the trimmer head in use, demonstrating its function in a typical lawn care scenario.
6. Maintenance
Regular maintenance of your trimmer head will extend its lifespan and ensure optimal performance.
- Clean Regularly: After each use, clean grass clippings, dirt, and debris from the trimmer head. This prevents buildup that can impede line feeding or cause imbalance.
- Inspect for Wear: Periodically inspect the trimmer head for cracks, excessive wear, or damage to the tap button and eyelets. Replace the head if significant wear or damage is observed.
- Check Line: Ensure the trimmer line is not fused together inside the spool. If it is, remove the spool and untangle or replace the line.
- Storage: Store the trimmer head in a clean, dry place when not in use.
7. Troubleshooting
This section addresses common issues you might encounter with your trimmer head.
| Problem | Possible Cause | Solution |
|---|---|---|
| Line does not advance when tapped. |
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| Trimmer head vibrates excessively. |
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| Tap button breaks or becomes unresponsive. |
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8. Warranty and Support
For specific warranty information regarding your JTEYINH 128LD Trimmer Head, please refer to the product packaging or contact the seller directly. Keep your proof of purchase for any warranty claims.
For further assistance or technical support, please reach out to the manufacturer or the retailer from whom you purchased the product. Provide them with your product model number (128LD) and any relevant purchase details.