Feed Wheel Removal And Replacement - IBM 29 Card Punch Field Engineering Maintenance Manual

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Release Pin
SS .
Manual
a Release Lever
Pressure Roll
Release Lever
Feed Wheel
Detail Station
Pressure Roll
Registration
Locking
Screw + aay.
vo/ Adjusting
|
SW
e
Screw
°
gy
=H
Master Station
Registration
Pressure Roll
4
a,
sd
62
KB
Feed Wheel
SS
|
(1)
Index 22° to 45°
0.023" to 0.032"
(0)
Eccentric
Figure 4-12. Pressure Roll Adjustment
Card Stop Cam
Note: In addition to normal eject wear and malfunction,
the following conditions may cause the preceding adjust-
ment to vary for successive cards:
Alternating long and short cards
Loose pins in escapementgeartrain
Bent idler gear shafts in escapementgear train
Improperfriction clutch torque
Eject Unit Mounting Screws
Setscrew
4.5.13 Feed Wheel Removal and Replacement
4.5.13.1 Detail Station
On machines with print feature, remove chip tube, print
head, plastic bed plate, and die and stripper; then proceed
with steps 1 through 5. On machines withoutprint feature,
separate feed wheel and shaft using procedure listed in
4.5.13.2, step 3; then remove die and stripper and proceed
} J
with steps | through 5.
ZA
1. Drive taper pins out of escapement wheel and spacegear.
\
2. Removecollar from escapement wheel shaft.
3. Slide shaft toward rear of machine andslip off escape-
Figure 4-13. Master Station Registration Adjustment
ment wheel andgear.
Pressure Roll
}
Lever Shaft
4-8
(4/69)

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