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HOPPER AND PICKER KNIVES
Principles of Operation
Refer to hopper and picker knives in Read Feed
section.
Adjustments
1.
On machines with adjustable left side aligner,
locate left hopper side plate so that there is .057" to
.067" clearance to hopper sub .frame.
2. On machines with the stationary left side
aligner locate left hopper side plate so that a card
will clear left side aligner by .010".
3. The right hopper side plate is adjusted for
.008" to .012" clearance over length of the cards.
a. Check this clearance by placing approxi-
mately a one inch pack of cards in the hopper and
insert one or two cards vertically between pack
and side plates.
One card should be loose; two
cards tight.
b. Make sure hopper side plates are at right
angles to the first set of feed rolls.
c. On machines with the adjustable left side
aligner, check that the card clears the left side
aligner by 1/32" to 1/16" with aligners in re-
stored position.
4. Position hopper posts for a clearance of .015"
±
.002" between hopper posts and a pack of cards
resting against throat knife.
a. Check for a two-card clearance between
hopper posts and the pack of cards.
b. Adjust by loosening screws in either end of
hopper posts mounting bar and shifting bar the
desired amount.
5. Position throat roller assembly laterally so
that vertical center line of roller is aligned with
edge of throat knife. Determine this by the step in
the block that indicates the center line of the roller.
" 6. Position cam follower arms for no binding
condition over entire periphery of the cams with a
maximum clearance of .008" between either cam and
follower at any point.
7 . Position feed knive arms evenly on shaft so that
the edge of the picker knife block travels .020" to
.030" beyond the trailing edge of the card when the
card is held against the hopper posts.
.~.;Throat
opening should be .0095" go, .0105"
,no-go.
"
9. The picker knife cam is set to deliver a card
. to the first feed rolls at 185
0
±
1/2
0 .
To adjust pro-
. ceed as follows:
a. Loosen cam on shaft.
b.Engage clutch .and turn to 185
0 •
c:
Turn cam on shaft until feed knives hold
,.:cttrd snug against first feed rolls.
d. Tighten cam on shaft.
4-4
CARD GUIDES
There are four card guides that must be kept in
proper relationship to the card line. Theyare located
as follows:
1. First card guide is located just past the first
feed rolls. The first upper card guide is removable
and is replaced by a brush assembly if the punch feed
read feature is on the machine. The first lower card
guide is then altered to accommodate a contact roll.
2. Second card guide is located at the first
stepped roll.
3. Third card guide is located at the second
stepped roll.
4. Punch stacker transport card guide is located
between the punch check brushes and the stackers
at the sixth feed roll.
Adjustments
1.
Hopper back plate guide should be .008" above
card line.
2. Loosen first lower card guide tie bar holding
screws and shift tie bar to obtain .012" to .030"
clearance between lower card guide and hopper back
plate guide.
3. Trailing edge of first lower card guide should
be not more than .005" above or .010" below second
lower card guide leading edge.
4. Position first upper card guide for .012" to
.030" clearance to lower card guide.
Adjust by
loosening screws in mounting bar and shifting guide
to desired position.
5. Position second upper card guide for .012"
to .030" clearance to lower guide.
a. Adjust by loosening tie bar holdingscrews
through side frames.
b. Check to make certain the tip of the forward
aligner is below the, top surface of lower guide.
Adjust by positioning the upper guide because
aligners travel in a slot in the upper guide;
NOTE: Screws mounting this guide to the bar are
8-36, PIN 607694.
6. Position third upper card guide for .012" to
.030" clearance to lower guide. Adjust by loosening
mounting bar holding screws and shift guide to desired
position.
7. Position punch stacker transport lower card
guide for .015" to .025" below. card line level, de-
termined by contact roll and sixth feed roll.
FEED ROLLS AND ALIGNER STATIONS
Principles of Operation (Figure4-5)
As the card passes the first upper card guide,
it
is
picked up by the first stepped:roll assembly. The
lower roll of the assembly iscaUed a stepped roll,
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