1. Introduction
This manual provides important instructions for the safe and effective installation, operation, and maintenance of your WANGDSKDluokeyan Mulching Mower Blades. Please read this manual thoroughly before installation and retain it for future reference. These blades are designed for specific Weed Eater models 961340006 and 961380017, and are also compatible with various OEM part numbers from AYP, Craftsman, Husqvarna, and Poulan.
2. Safety Information
WARNING: Mower blades are extremely sharp and can cause severe injury. Always exercise extreme caution when handling.
- Always disconnect the spark plug wire or remove the battery from the mower before performing any maintenance or blade replacement.
- Wear heavy-duty gloves and eye protection when handling blades.
- Ensure the mower is stable and cannot move during blade replacement.
- Never attempt to sharpen or modify blades without proper tools and knowledge. Improperly sharpened or balanced blades can cause vibration and damage to the mower.
- Keep hands and feet away from the blade area when the mower is running.
3. Product Overview
The WANGDSKDluokeyan Mulching Mower Blades are designed to provide an efficient cut and superior mulching performance for your lawn mower. These blades are sold as a 2-pack.
Blade Specifications:
- Length: 21 1/16 inches
- Width: 2 1/4 inches
- Thickness: 0.138 inches
- Center Hole: 5/8 inches
Figure 1: Two WANGDSKDluokeyan Mulching Mower Blades.
Figure 2: Detail of the 5/8 inch center hole on the blade.
Compatibility:
These blades are compatible with the following OEM part numbers:
- For AYP: 165833, 165833B, 175064, 176135, 189028, 406706, 406712, 531300765, 532175064, 532176135, 532189028, 532406712, 539111878, 917175064, 917175064PB, 917176135, 917532165833, 917532175064, 917532176135
- For Craftsman: 33275, 33524
- For Husqvarna: 531307235, 532145064, 532165833, 532189028, 532406706, 532406712
- For Poulan: 406712X431, 531307213, 531307235, 532175064, 532189028, 532406712, 539111878, PP22024
4. Setup and Installation
Follow these steps to safely replace your mower blades. Refer to your mower's owner's manual for specific instructions related to your model.
- Prepare the Mower: Ensure the mower is turned off, the spark plug wire is disconnected (for gas mowers) or the battery is removed (for electric mowers). Place the mower on a flat, stable surface.
- Secure the Blade: To prevent the blade from turning while loosening the bolt, wedge a block of wood between the blade and the mower deck.
- Remove Old Blade: Using a wrench, loosen the blade bolt by turning it counter-clockwise. Remove the bolt, washer, and the old blade. Note the orientation of the old blade for correct installation of the new one.
- Inspect Components: Check the blade bolt and washer for wear or damage. Replace if necessary. Clean any debris from the blade mounting area.
- Install New Blade: Position the new mulching blade with the cutting edge facing the direction of rotation (usually indicated by an arrow on the blade or mower deck). Ensure the blade is properly seated on the spindle. The curved or winged part of the blade should point upwards towards the mower deck, creating lift for mulching.
Figure 3: Proper orientation of a mulching blade, with the curved edge pointing upwards.
- Tighten Blade Bolt: Place the washer and blade bolt back on. Tighten the bolt clockwise using a torque wrench to the manufacturer's specified torque setting (refer to your mower's manual). Over-tightening or under-tightening can be dangerous.
- Final Check: Ensure the blade is securely fastened and spins freely without hitting the deck. Reconnect the spark plug wire or reinsert the battery.
5. Operating with Mulching Blades
Mulching blades are designed to cut grass into finer clippings, which are then returned to the lawn as natural fertilizer. For optimal mulching performance:
- Mow when the grass is dry.
- Avoid cutting more than one-third of the grass blade length at a time.
- Maintain a consistent mowing speed.
- Keep blades sharp for the best results.
6. Maintenance
Regular maintenance of your mower blades ensures safety and optimal cutting performance.
- Cleaning: After each use, clean grass clippings and debris from the blades and underside of the mower deck. This prevents buildup that can affect blade balance and mulching efficiency.
- Inspection: Regularly inspect blades for nicks, bends, cracks, or excessive wear. Damaged blades should be replaced immediately.
- Sharpening: Blades should be sharpened periodically, typically after every 20-25 hours of use, or at least once per season. For best results and to maintain proper balance, it is recommended to have blades professionally sharpened or replaced. An unbalanced blade can cause excessive vibration, leading to mower damage and an uneven cut.
- Replacement: Replace blades when they become too worn, bent, or damaged to be safely sharpened.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Uneven Cut | Dull or bent blade; improperly installed blade; uneven tire pressure. | Sharpen or replace blade; ensure blade is installed correctly; check and adjust tire pressure. |
| Excessive Vibration | Unbalanced or bent blade; loose blade bolt. | Replace or professionally balance blade; tighten blade bolt to specified torque. |
| Poor Mulching Performance | Dull blades; mowing wet or excessively tall grass; too fast mowing speed. | Sharpen or replace blades; mow dry grass; cut less at a time; reduce mowing speed. |
8. Specifications
- Product Type: Mulching Mower Blade
- Quantity: 2-Pack
- Length: 21 1/16 inches
- Width: 2 1/4 inches
- Thickness: 0.138 inches
- Center Hole Diameter: 5/8 inches
- Manufacturer: WANGDSKDluokeyan
- Compatible Weed Eater Models: 961340006, 961380017
- Replaces OEM Part Numbers: AYP 165833, 165833B, 175064, 176135, 189028, 406706, 406712, 531300765, 532175064, 532176135, 532189028, 532406712, 539111878, 917175064, 917175064PB, 917176135, 917532165833, 917532175064, 917532176135; Craftsman 33275, 33524; Husqvarna 531307235, 532145064, 532165833, 532189028, 532406706, 532406712; Poulan 406712X431, 531307213, 531307235, 532175064, 532189028, 532406712, 539111878, PP22024
9. Warranty and Support
For warranty information or technical support regarding your WANGDSKDluokeyan Mulching Mower Blades, please refer to the retailer or manufacturer's official website where the product was purchased. Keep your proof of purchase for any warranty claims.