IBM 1402 Reference Manual page 55

Card read-punch
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1. Loosen split-pulley hubs at both ends of first
stepped feed roll.
2. Place stepped-roll timing gage on Hat ends of
stepped rolls.
3. Trip clutch and turn machine to 0
0
4. Detent geneva timing pin (to hold timing) and
tighten split-hub pulleys on the stepped roll.
5. Remove stepped-roll timing gage.
FIRST INTERMITTENT ROLL
The first, stepped feed roll must be in proper time
before timing the first, intermittent feed roll. For a
timing check, refer to Feed Roll Timing Check, First
and Second, Intermittent Feed Roll, steps 1 through
4.
Common
Brush
Asm.
Intermittent
Feed Rolls
Stepped Feed Ro II
Belt Idler
Superman
Die Assembly
Fi~
3-58. Intennittent and Stepped Rolls
3-41. 4
NOTE:
The first intermittent feed roll can be timed
with the punch unit in the machine; however, it
is easier when the punch unit is removed.
1. Pivot hopper out. Remove PFR and punch check
brushes.
2. Trip clutch and turn machine to 352
0
3. Insert cards lengthwise between each roll of the
first intermittent feed roll.
4. Turn machine to 356
0
5. Adjust eccentrics (only if necessary) at each end
of the first, intermittent feed-roll shaft so that
each card experiences
a
slight drag. Keep punch
marks on the eccentrics facing punch marks on
the intermittent feed roll, opening arms (Figure
3-58 ).
Intermittent
Feed Roll Opening
Arms

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