[R-390] Meter Meister?

[Barry Hauser]

Gene wrote:
> Barry  . . . Do you have any pet suggestions regarding tools, and handling
> techniques for these ultra delicate manipulations....I've used the
"blowing"
> technique to check for free movement,  bits of paper cut to small
manipulators,
> re-machined nut drivers to reduce over-all od...and re shaped screw
drivers of
> various breeds...and types...

As for tools, a jeweler's screwdriver/nutdriver set and improvising (like
you, with paper, toothpicks, etc.)

As for handling -- verrrrry careful.  You have to be particularly careful
with steel tools around them that can snap to the permanent magnets.  Also
be careful just moving your hand away -- there's a tendency to snag things.
Sometimes you can manipulate the shaft back in place by finessing the outer
turns of the spring - very lightly bumping it.  And after all that, it's not
a sure thing.  Might be worn out or an open coil.  A true meter mechanic can
go as far as rewinding them, but that's beyond me.  Very expensive, I hear.

Barry