Servicing the Eccentric Bearing

NOTE: For model 6603 only.

Once every three months (depending on usage), remove the shear head from the power unit following the instructions in the "REPLACING CUTTERS" section of the manual.

Disconnect the tool from the power source before dis- assembling.

Put a few drops of heavy oil on the eccentric bearing assembly (A) Fig. 4, so that it saturates the needle bearing. The outside surface of the eccentric bearing ring and the yoke of the center blade should be coated with bearing lubricant.

Fig. 4

6603 specifications

The Porter-Cable 6603 is a powerful and versatile 6-inch random orbit sander designed for both professional woodworkers and DIY enthusiasts. Known for its exceptional performance, this tool features a 3.0 AMP motor that delivers a no-load speed of 12,000 RPM. This high-speed capability allows users to achieve a smooth, consistent finish across various surfaces with ease, making it ideal for sanding tasks that require precision and efficiency.

One of the standout characteristics of the Porter-Cable 6603 is its unique random orbit sanding motion. Unlike traditional sanders, this model utilizes a dual-action abrasive motion that combines both circular and random movements. This results in a swirl-free finish, reducing the risk of unsightly scratches on the workpiece. Additionally, the random orbit action helps to minimize the amount of dust generated during the sanding process, contributing to a cleaner workspace.

Another notable feature of the 6603 is its user-friendly design. It is equipped with a flush sanding design that allows users to access tight corners and edges effectively. This feature is especially beneficial for intricate projects, where getting into tight spaces is essential. The sander also comes with an ergonomic rubber overmold grip, which enhances comfort during extended use and reduces hand fatigue.

The Porter-Cable 6603 incorporates a hook-and-loop sanding pad system, making it easy to change sandpaper grits quickly and efficiently. This tool also has a built-in dust collection system that effectively captures debris, promoting a healthier working environment. The dust bag is easy to remove and clean, ensuring uninterrupted workflow.

Additionally, the 6603 is compatible with a wide range of sanding paper, allowing users to choose the right grit for any job. This flexibility enhances its usability across various applications, from rough sanding to fine finishing.

Durable and built to last, the Porter-Cable 6603 features a robust housing that can withstand the rigors of daily use. Whether in a home workshop or on a professional job site, this sander consistently delivers reliable performance, making it a go-to tool for sanding tasks. Overall, the Porter-Cable 6603 is an exemplary sander that combines power, versatility, and user-friendly features, making it an essential addition to any toolkit.