Adjusting Upright Ampico A Roll Tracking System
By Bill Chapman
Adjusting the roll tracking on a Marshall & Wendell Ampico upright
may require some trial and error. Start with a roll that is of
the exact width by comparing a roll or two. Recuts are sometimes
off-center. Forget for a moment the wire tracking ears.
Look for the rods connected to the roll-shifting pneumatic. Two rods
are joined to make one rod by using a small clamp or two. Loosen the
clamp(s) and with the pneumatic centered, adjust the length of the
rods by shortening or lengthening the combined length until the roll
is centered and all the perforations line up with the tracker holes.
Check the tracker bar alignment left, right and center. When perfs
are aligned to the tracker bar holes tighten the clamp on the rods so
they can only move as one.
Once that is done adjust the tracker wires so they almost touch the
edge of the roll. This is done by raising or lowering the vertical
tubes that the leather pads rest on to act as a valve.
There is a screw that fixes the tubes and keeps them from slipping up
or down. Loosen the screw before adjusting, of course. It may take
more than one try to get make the tracking work as designed. Take
close look at the take-up spool to make sure that it is centered.
Bill Chapman, in La Quinta, Calif. - 65 degrees and cloudy
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(Message sent Sun 3 May 2009, 16:29:28 GMT, from time zone GMT-0700.) |
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