Installing let-off buttons

[Horizons Group]

Dennis;

Have you tried the following:
1. Chuck a let-off regulating tool in a small electric drill.
2. Back the regulating screw out of the rail until just the tip
(1/16") is sticking out.
3. Place the concave side of the new button against the rail so that
the tip of the regulating screw is just sticking into the button.
4. Then turn the screw into the button with the drill until the tip
of the screw is almost even with the bottom of the button.
At this point, if the screw is installed perpendicular to the rail,
the button should be on the screw, parallel to the rail so that it
doesn't wobble when turned. Using this method, I've never had a
problem with the button becoming loose.

Hope this helps.

Doug Kirkwood, RPT
NH Chapter, PTG