IBM 1402 Reference Manual page 30

b. Rotate eccentric so each card has light drag at
356°. Keep high side (indicated by punch
marks) of eccentrics facing, but not neces-
sarily aligned with punch marks on intermit-
tent feed roll opening arms.
6. Check that each card is free at 353°, and gripped
tightly at
35T.
,SECOND STEPPED FEED ROLL ADJUSTMENTS
1.
Remove punch feed brushes and PFR brushes or
removable card guides.
2. Trip clutch ·at 300° and crank machine to 294°.
3. Loosen split hub of pulley on rear end of second
stepped feed roll.
Figure 3-27. Gage Position in Punch Station
4. Keep machine at 294°; turn second stepped roll by
hand and feed card lengthwise through one set
of rolls of second stepped feed roll shaft. Make
sure card is not passing through intermittent rolls.
5. When second stepped feed roll begins feeding
card, rotate roll slightly until the card experiences
light drag.
6. Hold roll at this position, and tighten pulley
loosened in Step 3.
7. Check that card is held tightly by second stepped
feed roll at 295 °, and is free at 292°.
8. Retime second intermittent feed roll.
SECOND INTERMITTENT FEED ROLL ADJUSTMENT
The second stepped feed roll must be in proper time
CARD
MOVEMENT
3-21