no hammer rise

[David Nereson]

    I'm trying to figure out why a grand action that seems to be regulated correctly, in terms of all the various adjustments, still has no hammer rise, even with the repetition springs compressed to almost max.  Some of them rise just the tiniest amount.  On most actions, upon letting up of pressure on the key (but not letting the key up), they should rise from where they check, up to but not past the point of let-off.  But these barely rise 1/16" if at all.   The checking distance isn't abnormally high; the rep. springs aren't weak; the rep. levers aren't pinned exceptionally tight; there's no gunk or goo hindering them; I suppose powdered Teflon on the knuckles might help a bit, but still . . . . I'm not sure what gives.  (It's a 1987 5'10" Kohler & Campbell.)
    --David Nereson, RPT       
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