Product Overview
The Bosch PR004 Offset Base is an essential accessory designed to extend the versatility of Bosch Colt PR20EVSK and PR20EVSNK Palm Routers. This specialized base allows users to perform routing tasks on near-vertical surfaces, such as trimming laminate on countertop backsplashes, where a standard router base might not reach. Its robust construction of durable aluminum and steel ensures longevity and reliable performance in professional jobsite environments.
Key features include a Quick-Clamp system for easy motor transfer between bases and a spindle lock mechanism for simplified bit changes and depth adjustments.
Figure 1: Front view of the Bosch PR004 Offset Base, showcasing its compact design and the roller guide mechanism.
Setup and Assembly
Before using the PR004 Offset Base, ensure your Bosch Colt Palm Router (models PR20EVSK or PR20EVSNK) is powered off and unplugged. The offset base is designed for quick and secure attachment.
Included Components:
- PR004 Offset Base
- Base Cover
- Phenolic Subbase
- 1/4-inch Self-Releasing Collet
- Drive Gear
- Special Roller Guide for PR004
- Comfortable Forged Wrench
Installation Steps:
- Ensure the router motor is clean and free of debris.
- Align the router motor with the opening in the PR004 Offset Base.
- Utilize the Quick-Clamp System to securely fasten the router motor into the offset base. Ensure it clicks into place, indicating a firm connection.
- Attach the Phenolic Subbase to the bottom of the offset base using the provided screws, if not already installed.
- Insert the 1/4-inch Self-Releasing Collet into the router's spindle.
- Install the desired router bit into the collet and tighten it using the Comfortable Forged Wrench. The spindle lock feature assists in easy bit changes.
- Verify that the Drive Gear is properly engaged for smooth operation of the offset mechanism.
- Ensure the Special Roller Guide for PR004 is correctly positioned for your application.
Figure 2: Side view of the Bosch PR004 Offset Base, showing the clear phenolic subbase and the roller guide assembly.
Operating Instructions
The PR004 Offset Base is specifically designed for applications requiring routing in confined spaces or along edges that are difficult to access with a standard router base. Its primary use is for trimming laminate or similar materials on near-vertical surfaces, such as countertop backsplashes.
Using the Offset Base:
- Application: This base excels in situations where the router bit needs to be offset from the main body of the router, allowing it to reach into tight corners or along vertical edges.
- Depth Adjustment: Bit depth adjustment is achieved by adjusting how deep the router bit is inserted into the collet. Ensure the bit is securely tightened after adjustment using the provided wrench and spindle lock.
- Roller Guide: The special roller guide assists in maintaining a consistent distance from the edge of the workpiece, ensuring smooth and accurate cuts, particularly when following contours or straight edges on vertical surfaces.
- Material Compatibility: Suitable for trimming various materials, including laminate, wood, and plastics, within the capabilities of your Bosch Colt Palm Router.
Always wear appropriate safety gear, including eye protection and hearing protection, when operating power tools. Ensure the workpiece is securely clamped before beginning any routing operation.
Maintenance
Proper maintenance will ensure the longevity and optimal performance of your Bosch PR004 Offset Base.
- Cleaning: After each use, disconnect the router motor from the base and clean both components. Remove all dust, wood chips, and debris from the base, especially around the Quick-Clamp mechanism, drive gear, and roller guide. Use a dry cloth or compressed air.
- Lubrication: Periodically inspect the drive gear and roller guide for smooth operation. Apply a small amount of light machine oil to moving parts if necessary, ensuring not to over-lubricate.
- Inspection: Regularly check the phenolic subbase for wear or damage. Replace if cracks or excessive wear are present to maintain routing accuracy. Inspect the collet for wear and ensure it grips bits securely.
- Storage: Store the offset base in a clean, dry environment, away from extreme temperatures and humidity.
Troubleshooting
This section addresses common issues you might encounter with the PR004 Offset Base.
| Problem | Possible Cause | Solution |
|---|---|---|
| Difficulty attaching/detaching router motor. | Debris in Quick-Clamp mechanism; improper alignment. | Clean the Quick-Clamp system thoroughly. Ensure the router motor is correctly aligned before attempting to clamp. Apply minimal lubricant if mechanism is stiff. |
| Inconsistent routing depth. | Bit not securely tightened; worn collet; subbase damage. | Ensure router bit is fully seated and collet is tightened with the wrench. Inspect and replace worn collet or damaged phenolic subbase. |
| Roller guide not tracking smoothly. | Accumulated debris; worn roller; insufficient lubrication. | Clean the roller guide and its assembly. Check for any obstructions. Apply a small amount of lubricant to the roller axle. If roller is damaged, contact Bosch service. |
Specifications
| Feature | Detail |
|---|---|
| Brand | Bosch |
| Model Number | PR004 |
| Material | Aluminum |
| Item Weight | 1.5 Pounds (approx. 0.68 kg) |
| Product Dimensions | 4.48 x 7.2 x 6.23 inches (approx. 11.38 x 18.29 x 15.82 cm) |
| Base Type | Fixed (Offset) |
| Compatible Routers | Bosch Colt PR20EVSK & PR20EVSNK Palm Routers |
| Included Components | Base Cover, Phenolic Subbase, 1/4-inch Self-Releasing Collet, Drive Gear, Special roller guide for PR004, Comfortable Forged Wrench |
Warranty Information
The Bosch PR004 Offset Base is covered by a 30-day money-back guarantee. For specific terms and conditions, or to initiate a warranty claim, please refer to the original purchase documentation or contact Bosch customer service.
Customer Support
For further assistance, technical support, or to inquire about replacement parts, please visit the official Bosch Tools website or contact their customer service department.