Sticking electrical switches

[r2millers]

Have any of you had success, repairing or reworking the interior switches?
Knowing the contact point, not sure if some have added a drop or two of sewing machine oil, pulled them apart, or something else to operate smoothly again.
I've got several that are very hard to operate and need to either repair or replace.
I know most would simply just replace but I'm always up to a challenge.
Any past experience?

[fhenn]

Just replaced the switch for the main overhead lights. Tried to repair the old on but it is a simple sealed switch. Bought a new switch for 6.00 and some change installed it in less than 5 minutes

[r2millers]

Thanks Frank. I wondered if they were sealed units. Will head over tomorrow to pull them out.

[r2millers]

Well, brought the TT home today, getting ready to head out Weds.
I pulled the switch covers off, pulled the switches themselves out of the wall and laid them almost flat.
Knowing these switches operate 12v circuits, I used a small amount of penetrating oil on each switch with the power off until I got them to operate easily.
Once I was comfortable with them, I turned the power back on and inspected each circuit.
They all worked like a charm. No more pressing on them a ridiculous amount to operate.
Well now see if they continue to operate properly.