Husqvarna Cutting Blade - 255-4

Genuine Husqvarna 255-4 Cutting Blade (25.4mm) - 578 44 37-01 (Grass) Part No. HV546 38 01-01 OE...

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Product Information

Full details

The Husqvarna 255-4 Cutting Blade (25.4mm) is designed for efficient grass and reed cutting, primarily for Husqvarna string trimmers and brushcutters. Its key benefit is providing a clean and effective cut in overgrown areas. A caveat is its specificity to certain Husqvarna models, requiring users to confirm compatibility before purchase. This genuine Husqvarna part offers a durable solution for regular grounds maintenance.

All features

Model Part Number5784437-01
BrandHusqvarna

Extended Product Information

FAQs

What types of vegetation is this blade best suited for?

This Husqvarna 255-4 cutting blade is specifically designed for efficiently cutting grass and reeds. It is not intended for heavy brush, wood, or hard materials.

What is the arbor hole size of this blade?

The arbor hole size for this blade is 25.4mm (1 inch), which is standard for many Husqvarna string trimmers and brushcutters.

How often should I sharpen or replace this blade?

The frequency depends on usage. Inspect the blade regularly for dullness or damage. Sharpen the cutting edges with a metal file when they become dull. Replace the blade if it is significantly bent, chipped, or worn beyond repair.

Can I use this blade on a non-Husqvarna brand trimmer?

While the 25.4mm arbor hole might fit, it is highly recommended to use genuine Husqvarna parts on Husqvarna machines for optimal performance and safety. Using it on other brands may void warranties and could be unsafe if not designed for that specific model's power and rotation.

What is the diameter of the blade?

The blade has a diameter of 255mm, which is approximately 10 inches.

How do I ensure I have the correct blade for my Husqvarna model?

Refer to the list of compatible models provided in the product description or your machine's owner's manual. Cross-reference the part number (578443701) with your manual's spare parts list.

Is this blade suitable for thick brush?

No, this blade is designed for grass and reeds. For thicker brush or wood, a different type of cutting attachment, such as a saw blade or heavy-duty brush knife, would be more appropriate and safer.

Troubleshooting

Blade does not cut effectively

Ensure the blade is correctly installed with the cutting edge facing the right direction. Check if the blade is dull and requires sharpening or replacement. Verify that the machine's engine or motor is operating at full power and that there are no obstructions.

Excessive vibration during operation

The blade may be unbalanced due to damage or improper installation. Check for any nicks or bends in the blade. Ensure the blade is securely fastened to the arbor and that the arbor itself is not damaged.

Blade does not fit the machine

Confirm that the arbor hole size (25.4mm) matches the machine's shaft requirement. Double-check that the specific Husqvarna model is listed as compatible with this blade.

Blade shows signs of rust

This can occur if stored in a damp environment. Clean off any rust with a fine-grit sandpaper or steel wool, then apply a light coat of oil to prevent future corrosion. Ensure proper dry storage.

Pros and Cons

Pros

  • Efficiently cuts grass and reeds.
  • Genuine OEM part ensures proper fit and function.
  • Durable construction for extended use.
  • Wide compatibility with numerous Husqvarna models.
  • Provides a clean and effective cut.

Cons

  • Limited to specific Husqvarna models.
  • Not suitable for heavy brush or wood.
  • Requires a compatible string trimmer/brushcutter.
  • May require professional installation if unfamiliar with blade changes.

Setup, Compatibility & Care

Compatibility:

This 255-4 cutting blade is designed for a range of Husqvarna models, including but not limited to:

  • Series R/RJ/RB/RX/RXT: 22R, 26R, 124R, 125R, 125RD, 125RJ, 128R, 128RJ, 129DJX, 129R, 129RJ, 131RB, 132R, 132RJ, 133R, 135R, 142R, 142RB, 142RJ, 152RB, 152RJ, 223R, 226R, 226RJ, 233R, 241R, 241RJ, 243R, 253R, 322R, 323R, 323R II, 323RJ, 324RX, 325R, 325RDX, 325RJX, 325RX, 325RXT, 326RJX, 326RX, 327RDX, 327RJX, 327RX, 333RJ, 335RJX, 336RK, 520iRX, 525RJX, 525RS, 525RX, 525RX II, 525RXT, 525RXT II, 535RJ, 535RXT, 535iRX, 535iRXT.
  • Series L/LD/LS/LX/FR/RK/RS/iLST/iRX/iFR: 223L, 227L, 227LD, 232L, 235FR, 240L, 325iR, 325iRJ, 335FR, 335LS, 335LX, 520iLX, 524L, 525iLST, 525iRXT, 525RJD, 525RK, 525RX, 535iFR, 535iRXT.

Always consult your specific Husqvarna model's manual to confirm compatibility. The blade features a 25.4mm (1") arbor hole.

Setup:

  1. Ensure the cutting head is clear of debris.
  2. Safely detach the power source (e.g., remove spark plug or battery).
  3. Using the appropriate tools (often a wrench and a stop bar to prevent rotation), unfasten the existing blade or cutting line.
  4. Align the new 255-4 blade with the correct orientation (check markings on the blade and the cutting head).
  5. Secure the blade using the provided washer and nut, tightening it firmly.
  6. Re-attach the power source and test the machine at a low speed.

Care:

  • Cleaning: After each use, remove the blade and clean off any grass, dirt, or sap buildup with a brush or damp cloth. Ensure the blade is completely dry before storage.
  • Inspection: Regularly check the blade for nicks, dents, or excessive wear. Sharpen the cutting edges if necessary using a metal file.
  • Storage: Store the blade in a dry place, away from moisture, to prevent rust. Consider using a blade cover for safety.

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