HP45 power switch lubrication without opening calculator?

[calc-calcs]

Yes by applying slight downward pressure (very carefully) the switch resistance almost goes away. There is actually not much inward travel but it seems to be enough to make things slide easier. Thanks for the suggestion.

I wish there was an easy way to access the switch to do a cleanup/maintenance. Can't open these calculators up without at least having to bend up the corners of the back label that covers two screws. And I am definitively trying to avoid that.

Years ago I had another 45 that needed a good general cleaning inside and out, only this one had already been opened before so no big deal. I took it all apart, even the keyboard, washed and cleaned all the keys etc. I seem to remember that the power switch contacts slide directly over two pads on the circuit board, and the switch was lubed with silicone grease.