Pocket Selectors; Stackers; Punch Feed Read; Brushes - IBM 1402 Reference Manual

51-80 Column Device
Hopper
Adjustments other than standard machine adjustments
are described here.
ADJUSTMENTS
1. Position rear side plate so column 1 of a 51 column
card centers on brush 15.
2. Retract side joggler, install a one-inch deck of
cards against rear side plate. Position front side
plate for one card go, two card no-go condition in
relation to deck.
3. Adjust rubber-tipped arm on rear of side joggler
so joggler, at its maximum outward travel, just
touches card deck.
4. Align 51 column portion of front joggler within
. 003" of 80 column portion, both at sensing pads
and at tips.
5. Position hopper card lever on its shaft so that
contact operates when lever is 1/ 32" to 3/ 32"
above picker knife surface. Pressure to operate
the lever should be 18 to 24 grams.
6. Position throat roller so centerline aligns with
throat knife face within .002". This adjustment is
more critical on 51 column machines than on
standard machines.
Pocket Selectors
SERVICE CHECKS
1. Check for proper lubrication, loose screws, worn
parts, and binds.
2. With magnet energized, check that top surface
of the chute blade is not above the top of the
shear plate and not below the card line more
than .025".
ADJUSTMENTS
1. Position selector magnet armature stop for
.038"
to .042" clearance between upper part of armature
and stop. See Figure 5-1.
2. Position magnet plate assembly so that, when
magnet is energized, top of chute blade is flush
with top surface of shear plate, and not more than
.025" below card line. When magnet de-energizes,
tip of blade must rise at least .025" above card
line.
Section 5. Special Features
Stackers
SERVICE CHECKS
1. Check for excessive accumulation of dust.
2. Check for binding of deck support slides.
3. Check that any stacker will operate full pocket
stop switch.
4. Check for proper lubrication and loose parts.
ADJUSTMENTS
1. Loosen ledge assembly so that it slides easily.
2. Adjust deck support damping leaf springs to just
touch channels in which they move.
3. Adjust deck support coil spring so a .50 to .55
lb. force, with no cards in stacker, pulls slide to a
point just short of operating full stacker switch .
4. Form the stacker radial card guide to match the
profile shown in Figure 5-2.
Punch Feed
Read
Brushes
Brush timings and adjustments are the same as the
punch check brushes. Refer to Punch Feed, Brush
Assemblies.
Figure 5-l. 51-80 Column Stacker Select Mechanism
5-1