1. Product Overview
This manual provides instructions for the installation and maintenance of Sharp BU-3 Replacement Vacuum Belts. These belts are designed to restore optimal performance to compatible Sharp upright vacuum cleaners, such as the Sharp ECT5980 model. Each package contains two durable rubber replacement belts.

Figure 1: Sharp BU-3 Replacement Vacuum Belts. These belts are essential for maintaining the brush roll's rotation, which is critical for effective vacuuming.
2. Safety Information
Always follow these safety precautions when handling or replacing vacuum cleaner parts:
- Unplug the Vacuum: Before performing any maintenance or belt replacement, always unplug the vacuum cleaner from the electrical outlet to prevent accidental startup and electrical shock.
- Allow Cooling: If the vacuum has been recently used, allow it to cool down before handling internal components.
- Wear Gloves: Consider wearing protective gloves to avoid contact with dust, debris, or sharp edges.
- Keep Away from Children: Store replacement parts and tools out of reach of children.
- Use Correct Parts: Only use genuine or approved replacement parts designed for your specific vacuum model.
3. Installation Instructions
Follow these steps to replace the vacuum belt:
- Prepare the Vacuum:
- Ensure the vacuum cleaner is unplugged from the power source.
- Lay the vacuum cleaner flat on its front or side on a clean, stable surface to access the brush roll area.
- Access the Brush Roll:
- Locate the bottom plate of the vacuum, usually secured by screws or latches.
- Remove the screws or release the latches to detach the bottom plate. Set the plate and fasteners aside.
- Remove the Old Belt:
- Carefully lift out the brush roll. The old belt will likely be stretched, broken, or loose around the brush roll and motor shaft.
- Remove the old belt from both the brush roll and the motor shaft. Dispose of the old belt properly.
- Install the New Belt:
- Place one end of the new Sharp BU-3 replacement belt around the motor shaft.
- Stretch the other end of the belt around the brush roll. Ensure the belt is centered on both the motor shaft and the brush roll.
- Reinstall the Brush Roll:
- Carefully place the brush roll back into its housing, ensuring the belt remains properly seated on both the motor shaft and the brush roll.
- Rotate the brush roll manually a few times to confirm the belt is correctly aligned and moves freely.
- Reassemble the Vacuum:
- Replace the bottom plate, aligning it correctly.
- Secure the bottom plate with the screws or latches removed earlier.
- Plug the vacuum cleaner back into the electrical outlet and test its operation.
4. Maintenance
Regular inspection and maintenance can extend the life of your vacuum belt and ensure optimal cleaning performance:
- Inspect Regularly: Periodically check the belt for signs of wear, stretching, cracking, or breakage. A good practice is to inspect it every 3-6 months, or if you notice a decrease in cleaning performance.
- Clear Obstructions: Hair, threads, and other debris can wrap around the brush roll and belt, causing excessive strain and premature wear. Regularly remove any obstructions from the brush roll.
- Avoid Overloading: Do not force the vacuum over thick carpets or large debris that could jam the brush roll, as this puts undue stress on the belt.
- Replace as Needed: Even without visible damage, belts can stretch over time, reducing their effectiveness. Replace the belt if the brush roll is not spinning effectively or if the vacuum's suction seems diminished.
5. Troubleshooting
If your vacuum cleaner is not performing as expected after belt replacement, consider these common issues:
| Problem | Possible Cause | Solution |
|---|---|---|
| Brush roll not spinning | Belt broken, stretched, or dislodged. Obstruction in brush roll. | Inspect and replace the belt if necessary. Clear any hair or debris from the brush roll. Ensure the belt is properly seated. |
| Reduced suction or cleaning performance | Belt stretched or worn, causing the brush roll to spin too slowly. | Replace the belt with a new Sharp BU-3 belt. |
| Burning smell | Belt slipping or brush roll jammed. | Immediately unplug the vacuum. Check for brush roll obstructions. Replace the belt if it appears damaged or stretched. |
6. Specifications
- Product Type: Replacement Vacuum Belt
- Brand: Sharp
- Belt Style: BU-3
- Part Number: EC-02BU2
- Material: Rubber
- Quantity: 2-pack
- Compatible Devices: Sharp Upright Vacuum Cleaners (e.g., ECT5980)
7. Warranty and Support
Specific warranty information for replacement parts may vary. Please refer to the original vacuum cleaner's user manual or contact Sharp customer support for details regarding warranty coverage for replacement belts.
For further assistance or technical support, please visit the official Sharp website or contact their customer service department. Ensure you have your vacuum cleaner model number and the belt part number (BU-3 / EC-02BU2) available when seeking support.
Sharp Official Website: www.sharpusa.com





