1. Introduction
This manual provides essential instructions for the safe and effective installation and maintenance of your BLACK+DECKER Carbon Brush Kit (Model 90564003). This kit contains two carbon brushes and brush holders, designed as replacement parts for specific BLACK+DECKER chainsaw models. Please read this manual thoroughly before attempting any installation or maintenance.
2. Safety Information
Always observe basic safety precautions when working with power tools and their components. Failure to do so may result in serious personal injury or damage to the tool.
- Disconnect Power: Always ensure the power tool is unplugged from the power source or its battery is removed before attempting any maintenance or part replacement.
- Wear Protective Gear: Use appropriate personal protective equipment, including safety glasses and gloves.
- Use Correct Parts: Only use genuine BLACK+DECKER replacement parts specified for your tool model.
- Consult a Professional: If you are unsure about any procedure, consult a qualified service technician.
- Keep Work Area Clean: Ensure your work area is well-lit and free from clutter.
3. Package Contents
Your BLACK+DECKER Carbon Brush Kit (Model 90564003) should contain the following items:
- 2 x Carbon Brushes
- 2 x Brush Holders (Portaspazzole)
Figure 1: Contents of the Carbon Brush Kit. This image displays two carbon brushes along with their respective brush holders, which are essential components for the electric motor of compatible chainsaws.
4. Compatible Chainsaw Models
This carbon brush kit is compatible with the following BLACK+DECKER electric chainsaw models:
- GK1830
- GK1935
- GK1940
- GK2235
- GK2240
Note: Always verify your chainsaw's model number before purchasing or installing replacement parts to ensure compatibility.
5. Setup and Installation
Replacing carbon brushes requires careful attention. Follow these general steps. Specific disassembly instructions for your chainsaw model may vary; refer to your chainsaw's original manual for detailed guidance.
- Prepare the Chainsaw:
- Ensure the chainsaw is completely disconnected from its power source (unplugged or battery removed).
- Place the chainsaw on a stable, clean work surface.
- Locate Brush Covers:
- Identify the brush covers on the motor housing. These are typically small, often slotted or Phillips head caps, usually located on opposite sides of the motor.
- Remove Old Brushes:
- Carefully unscrew the brush covers.
- Gently pull out the old carbon brushes and their holders. Note their orientation for correct installation of the new brushes.
- Inspect the commutator (the part of the motor that the brushes contact) for excessive wear or damage.
- Install New Brushes:
- Insert the new carbon brushes and brush holders from the kit into the motor housing, ensuring they are oriented correctly. The carbon tip should make proper contact with the commutator.
- Gently push the brushes in until they seat properly.
- Replace the brush covers and tighten them securely, but do not overtighten.
- Test the Chainsaw:
- Reconnect the chainsaw to its power source.
- Perform a brief test run to ensure the motor operates smoothly and without unusual sparks or noise. Initial sparking is normal as the new brushes seat.
If the chainsaw does not operate correctly after brush replacement, disconnect power immediately and re-check the installation.
6. Maintenance
Carbon brushes are wear items and will eventually need replacement. Regular inspection can prolong the life of your tool.
- Regular Inspection: Periodically check the carbon brushes for wear. Replace them when they are worn down to approximately 1/4 inch (6mm) or less, or if they appear chipped or damaged.
- Commutator Cleaning: If excessive sparking occurs, the commutator may need cleaning. This is a more advanced procedure and should ideally be performed by a qualified technician.
- Keep Vents Clear: Ensure the motor's ventilation openings are kept clear of sawdust and debris to prevent overheating.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Motor not starting or running intermittently | Worn or improperly seated carbon brushes. | Inspect and replace carbon brushes if worn. Ensure they are correctly seated. |
| Excessive sparking from motor | Worn brushes, dirty commutator, or incorrect brush installation. | Replace worn brushes. Clean commutator (if comfortable, otherwise seek professional help). Re-install brushes correctly. |
| Reduced motor power | Worn carbon brushes. | Replace carbon brushes. |
If troubleshooting steps do not resolve the issue, contact BLACK+DECKER customer support or a certified service center.
8. Specifications
- Product Type: Carbon Brush Kit with Holders
- Brand: BLACK+DECKER
- Model Number (Kit): 90564003
- Quantity: 2 x Carbon Brushes, 2 x Brush Holders
- Compatibility: BLACK+DECKER Chainsaw Models GK1830, GK1935, GK1940, GK2235, GK2240
9. Warranty and Support
For information regarding warranty coverage, technical support, or to locate an authorized service center, please visit the official BLACK+DECKER website or contact their customer service department. Keep your purchase receipt as proof of purchase.
Official Website: www.blackanddecker.com