How to Replace the Clamp Screw on a Porter Cable Router (690 Series)

Run-down router testing your resolve? It's time to face the fix. Whether you are a master carpenter or a weekend woodworker, eReplacementParts.com provides the parts, procedures and facts you need to fearlessly fix what fails you.

The clamp screw (also known as the base lock screw) is a specialty component that helps secure the router base to the motor. The screw features an offset head, which is engineered to precisely fit the clamp assembly on the router. Stripped threads are the most common reason for replacing the screw. This article provides step-by-step instructions for removing and installing the clamp screw on a Porter Cable 690 series router.

Let's get started.

  REMOVING THE CLAMP SCREW [top] 1. Remove the clamp screw.

Loosen and remove the clamp knob.

Remove the washer.

Remove the clamp screw from the clamp assembly.

  INSTALLING THE NEW CLAMP SCREW [top] 2. Install the new clamp screw.

Install the new clamp screw onto the clamp assembly. Note that one side of the screw contains an extended flange (at the head). The flanged portion of the head should be installed against the router.

Reinstall the washer.

Reinstall the clamp knob.

Dovetails. Rabbets. Dados. Grooves: The possibilities are as priceless as machines that create them. But you don't have to be a carpenter to cut out the middle-man. Repairing your own powered equipment is easy and economical when you follow our step-by-step guides. Not only did you restore your router at a fraction of the cost of replacement; you built on your ability to face the next fix, whatever it may be.

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