Introduction
These Buildalot Specialty Carbon Brushes are designed as direct replacement parts for Bosch PSB 400-2 powertools. Each set includes two carbon brushes complete with springs, cables, and connectors, ensuring proper electrical contact and tool functionality. The brushes feature an automatic stop mechanism to protect your power tool from damage when they are worn.
It is recommended to replace both carbon brushes simultaneously to maintain optimal performance and extend the lifespan of your tool.
Image 1: A pair of Buildalot carbon brushes, each featuring a rectangular carbon block, a coiled spring, and a connecting wire. These are ready for installation into compatible power tools.
Safety Information
- Always disconnect the power tool from the electrical supply before attempting any installation, maintenance, or repair.
- Wear appropriate personal protective equipment, such as safety glasses, during installation.
- Ensure the work area is clean, well-lit, and free from obstructions.
- If you are unsure about any step, consult a qualified technician or the power tool's original service manual.
Setup and Installation
Follow these steps to replace the carbon brushes in your Bosch PSB 400-2 power tool:
- Disconnect Power: Ensure the power tool is unplugged from the electrical outlet to prevent accidental startup.
- Locate Brush Holders: Identify the carbon brush access caps or covers on the motor housing of your Bosch PSB 400-2. These are typically located on opposite sides of the motor.
- Remove Old Brushes:
- Carefully unscrew or unclip the brush access caps.
- Gently pull out the old carbon brushes, along with their springs and wires. Note their orientation for reference.
- Inspect Brush Holders: Clean any carbon dust or debris from the brush holders using compressed air or a soft brush.
- Install New Brushes:
- Insert the new Buildalot carbon brushes into the brush holders. Ensure the carbon block slides smoothly and the spring applies even pressure.
- Connect the wire terminal of the new brush to the corresponding terminal inside the tool, if applicable. Some brushes come with integrated connectors.
- Replace the brush access caps, ensuring they are securely fastened.
- Test Tool: Plug the power tool back into the electrical outlet and briefly test its operation. Listen for unusual noises or excessive sparking.
Image 2: A schematic representation of a single carbon brush, highlighting the carbon block, the coiled spring, and the connecting element. This illustrates the components of each brush.
Operation
Once the new carbon brushes are correctly installed, your Bosch PSB 400-2 power tool should operate as intended. The carbon brushes facilitate the transfer of electrical current to the motor's commutator, enabling the tool's function.
These brushes are equipped with an automatic stop feature. This means that when the carbon brushes wear down to a critical point, they will automatically disconnect, preventing further operation and protecting the motor from potential damage. This feature helps to extend the overall life of your power tool.
Maintenance
- Regular Inspection: Periodically inspect the carbon brushes for wear, especially if the tool experiences reduced performance or unusual sparking.
- Replacement: Replace carbon brushes when they are significantly worn, typically when they are about one-third of their original length, or when the automatic stop feature activates. It is good practice to replace both brushes at the same time.
- Cleaning: Keep the brush holders and motor ventilation slots clean and free of dust and debris to ensure proper airflow and prevent overheating.
- Storage: Store unused carbon brushes in a dry, cool place away from direct sunlight and moisture.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Tool does not start or operates intermittently. |
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| Excessive sparking from the motor. |
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| Reduced tool power or speed. |
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Specifications
- Product Type: Specialty Carbon Brushes
- Brand: Buildalot
- Model Compatibility: Bosch PSB 400-2 (and various sub-models like 0 603 248 143, 0 603 355 004, etc.)
- Dimensions (each brush): 5mm x 8mm x 15.5mm (approximately 0.2 x 0.31 x 0.61 inches)
- Material: Carbon Steel
- Quantity: 2 pieces per package
- Features: Includes spring, cable, and connector; Automatic stop function
- Replaces OEM Part Numbers: 1.607.000.484, 2.604.321.605, 2.604.321.905, 2.604.321.907
Support
For further assistance, technical support, or warranty inquiries regarding your Buildalot carbon brushes, please contact the manufacturer directly through their official website or customer service channels. When contacting support, please have your product model information ready.