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Die and Stripper
Unit pivots on
mounting plugs
Pin Sensing Unit
\
~~
Card Line
!
o
VE
r
Pin
|
|
e—— Bail
Screwdriver
i -
Arm
|oe
'
;
Slot
a
7
| Eccentric Stop
i
Gy
Locking Screw
FD,
f
y SA
set
y s
Punch
eS
Anchor Bar
Pin Bail Links
Shaft
oP
\ Lock Nut
Adjusting Screw
Holding Screw
Figure 4-29. Punch Penetration Adjustment
(CAUTION
2. Slide plate off its guide pins and punch extensions. Any
Keep the horizontal shift slide compressed.
4. Remove punch extension lower guide. Punches may be
pulled out by lifting each extension over its operating
arm.
Replacement: To reinstall the assemblies, slip extension
guide plate off print interposer unit and place it over the
extensions first. The extensions will then be equally spaced,
and the yokes will locate themselves freely to the exten-
sion. When the interposer unit is being replaced on the
~ extension, the yokes should be in their lowest operating
position and held there by spring or finger pressure on the
slides.
Note that the toe of the punchis toward the front of the
machine. Be sure that the retaining pin head is on the same
side as the pin retaining plate. Support the punch and
extension on a 6-inch scale to aid in reassembly.
CAUTION
When removing the interposer unit, note that the screw
over the 9-punch drive is shorter than the other screws.
Be sure to reinstall the short screw in the same position.
Placing one of the longer screwsin this position will bind
the drive unit.
4.6.18.2 Without Print Feature
Removal:
1. Tilt punch bed to vertical position and removethe three
screws holding punch-extension lower-guideplate.
4-16
(4/69)
punch is accessible by lifting the extension over the
associated punch operating arm, and pulling it straight
out.
Replacement: When replacing the punch assembly, check to
see that retaining pin head is on sameside as pin retaining
plate. Toe of punch should be toward front of machine.
Inserting punch into stripper is easier if it is supported on a
6-inch scale, (hold with a rubber band).
4.6.19 Pin Bail Drive Link Adjustment
1.
2.
Loosen the two holding screwsin pin bail drive link.
Insert screwdriver blade in square hole between holding
screws. After punch clutch is latched at 345 degrees,
extend the pin operating arm until it rests against its
stop screw.
. Tighten holding screws while holding link extended.
4.7 PIN-SENSE UNIT
4.7.1 Pin-Sensing Unit Service Checks
Improper insertion of master cards by the operator can
cause incorrect reading. If the card is pushed in so far that
it is pressed against the feed and idler rolls and, at the same
time, is pulled away from the top guide rail, it will stay in
this position after being registered. Most punching in the
first third of the card will fail to read, and some punching
in the rest of the card mayalso beleft out.
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