Porter-Cable 333VS Troubleshooting Maintenance, PAD Brake, Using the Sander, Changing BACK-UP PAD

PAD BRAKE

These sanders are equipped with a pad brake that prevents over-speeding of the pad. If the tool is lifted off the work surface while the motor is running, the brake will limit pad rotation to no more than 400 RPM.

The pad brake uses a belt to provide the braking action. Eventually, this belt may require replacement. If the brake fails to limit pad rotation, send the sander to a Porter-Cable service facility or replace the belt yourself as explained under BELT REPLACEMENT in the MAINTENANCE SECTION of this manual.

USING THE SANDER

1. Secure work to prevent it from moving during the sanding operation. Friction between the sanding disc and work will try to spin work away from sander and may cause bodily injury.

2. WEAR SAFETY GLASSES AND DUST MASK.

3.Place sander pad in light contact with the work before switching the motor “ON”.

4.Grasp sander firmly and move switch to “ON” position.

5.Move sander in long overlapping strokes. Tipping sander or stopping in one spot can produce an uneven finish.

6.When finished, keep pad in contact with work, move switch to “OFF” position and lift sander from the work. Allow pad rotation to stop completely before setting sander down.

TROUBLESHOOTING

For assistance with your tool, visit our website at www.porter-cable.com for a list of service centers or call the Porter-Cable help line at 1-800-223-7278.

MAINTENANCE

CHANGING BACK-UP PAD

1. DISCONNECT TOOL FROM POWER SOURCE.

2.Grasp pad with hand and use phillips screwdriver to remove three pad retaining screws, Fig. 9 (turn screws counterclockwise to remove).

3.Lift pad from sander.

4.Reverse procedure to install new pad. Tighten pad retaining screws 25 to 30 in-lbs.

PAD

RETAINING

SCREWS

Fig. 9

13