Card Registration Service Check; Pusher Arm Adjustment; Card Stop Cam Adjustment; Pressure Roll Service Check - IBM 29 Card Punch Field Engineering Maintenance Manual

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4.5.7 Card Registration Service Check
Card registration should be checked every time the machine
is serviced. To improve operation of the register and eject
arms, lubricate the roller pivots with IBM # 6.
4.5.8 Pusher Arm Adjustment
1. Position card pusher arm stop to 0.004 inch below upper
edge of right bed plate (Figure 4-11).
2. Pull back pusher arm studto be sure it does not interfere
with registration.
tration.
Note: This adjustment is easier if'a 1/4-inch socket is
used to loosen and tighten the adjusting screw lock nut.
4. Set card feed index at 50 degrees and adjust pusher arm
stud for 0.003-inch to 0.008-inch clearance to pusher
arm.
RAR
Registration
Adjusting
Screw
_ Pusher Arm
Card Pusher Arm Stop
Card Pusher Cam at 50°
Q
0.003" to 0.008"
Pusher Arm Stud
Figure 4-11. Detail Card Registration
4.5.9 Card Stop Cam Adjustment
1. Loosen setscrews on index shaft bevel gear.
2. With the CF clutch latched, rotate card stop cam to a
point where cam follower is at the approach but is not
up on rise of cam.
3. With some wink at the meshpoint of the bevel gears,
tighten the setscrews.
4. Check timing by watching eject and register arms to be
sure that they do not start down again at the end of the
CF cycle. The beveled gears are spot-marked at the
factory so that this timing can be regained after removal
of the feed by simply aligning the marks.
4.5.10 Pressure Roll Service Check
After a card is registered, turn power off. With the power
off, manually engage card feed clutch and turn the card
feed mechanism. Check to see that the card is released by
10 degrees and gripped again at 60 degrees.
4.5.11 Pressure Roll Adjustments
4.5.11.1 Punch Station
1. Turn card stop cam until cam follower is on high dwell
of cam (index at 22 degrees to 45 degrees).
2. Adjust eccentric on stop lever cam arm for 0.023-inch to
0.032-inch opening between detail station pressure roll
and large feed roll (1, Figure 4-12).
4.5.11.2 Read Station
1. Turn card stop cam until cam follower is on high dwell
of cam (Figure 4-12).
2. Loosen locking screw in pressure roll release lever
(Figure 4-12).
3. Twist pressure roll release pin arm until 0.025-inch to
0.035-inch clearance is between read station pressureroll
and large feedroll.
4. Tighten locking screw.
4.5.12 Registration Adjustments
4.5.12.1 Detail Station
Check pressure rail tension before making this adjustment.
1. Loosen registration locking screw (Figure 4-12).
2. Adjust lateral position of detail pressure roll with the
registration adjusting screw so that card rides against the
guide bar while manual duplication is performed.
3. Tighten registration locking screw.
4.5.12.2 Master Station
The master pressure roll lever pivot is an eccentric.
1. Loosen setscrew (Figure 4-13) and rotate pressure roll
lever shaft until card does not pull away from upperrail
when spacing is performed.
2. Tighten locking setscrew.
3. Multipunch a card with 12 through 9 in column 40.
Check the card length and registration on a card gage.
Register the card in the read station and space to column
40. While holding the card stationary, remove the eject
unit and check that both sensing pins are visible in each
hole.
4. Adjust the two setscrews in the eject throat plate to
obtain the correct registration.
29FEMM
(4/69)
4-7

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