IBM 1402 Reference Manual page 58

4. Remove bearing hanger pivot screw on rear side
frame.
5. Remove upper card guides.
6. Tap feed roll towards front of machine and out
through side frame.
7. Replace in the reverse order.
THmD LOWER ROLL
1. Remove punch magnet unit from machine.
2. Remove support bracket from forward aligner out
through bottom of punch feed.
3. Remove hanger springs from feed roll bearing.
4. Remove pivot screw from bearing hanger on
rear side frame.
5. Pass lower feed roll through rear side frame.
6. Replace in the reverse order.
FOURTH UPPER ROLL (INTERMITTENT)
1. Remove punch magnet unit from machine.
2. Remove geneva housing but do not loosen locator
blocks.
3. Remove bearing retainer screw from rear of
fourth feed roll.
4. Remove upper card guides and card lever in sec-
ond, intermittent station.
5. Tap the shaft towards front of machine and out
through front side frame.
6. Replace in the reverse order.
FOURTH LOWER ROLL
1. Remove punch magnet unit from machine.
2. Remove hanger springs from feed roll bearing.
3. Remove pivot screw from bearing hanger on rear
side frame.
4. Pass lower feed roll through rear side frame.
5. Replace in the reverse order.
SECOND STEPPED ROLL
1. Remove punch magnet unit from the machine.
2. Remove upper card guides, pressure shoes, and
card-lever arm.
3. Remove lower card guide between second, inter-
mittent and second, stepped feed roll.
4. Remove card guide support from bottom of feed.
5. Remove tension springs from upper, feed-roll
hanger.
6. Remove stepped, feed-roll belt and pulley from
shaft on rear side frame.
7. Remove bearing retainer screws and plate; pull
stepped roll through front side frame.
S. Re-assemble in the reverse order; but, first re-
place the card guides between the fourth and
fifth upper rolls. Then replace the guide mount-
ing bar and attach the guides.
FIFTH UPPER ROLL
1. Remove punch magnet unit from machine.
2. Remove upper card guides.
3. Remove bearing retainer screws and hangers.
4. Pass the fifth upper feed roll through the rear
side frame.
5. Replace in the reverse order.
PUNCH BRUSH CONTACT ROLL
1. Remove punch brush assembly.
2. Loosen and lower common brush holder on con-
tact roll.
3. Remove retainer screws and plate on contact roll
bearings.
4. Pass contact roll through rear side frame.
5. Replace in the reverse order.
SIXTH UPPER ROLL
Caution:
Be careful when removing or replacing front
bearing in hanger to avoid damage to the hanger.
1. Release tension springs on feed-roll hangers.
2. Remove screw from rear bearing hanger.
3. Pass feed roll through rear side frame.
4. Replace in reverse order.
SIXTH LOWER ROLL
1. Remove bracket from stacker card-lever contact.
2. Remove lower card guide.
3. Drive out taper pins located on front of feed roll.
4. Release tension springs on upper feed-roll
hangers.
5. Remove bearing retainer screws and plate.
6. Pass feed roll through front side frame.
7. Replace in the reverse order.
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