Interposer And Interposer Link; Interposer Guide Bar - IBM 1402 Reference Manual

adjustment of the follower bearings impossible.
See Figure 3-32.
TIMING
Caution: Do not operate machine with timing rod
in punch unit.
1. Use timing rod 610077 to line up timing holes in
cams with hole in punch unit left side frame .
2. Set punch index at 0' .
REMOVAL
1. Remove punch unit from machine.
2. Remove stripper assembly.
3. Remove two dowel pins in cam follower mount-
ing plate. See Figure 3-32.
4. Remove four mounting screws. See Figure 3-32.
5. Separate cam follower assembly from punch unit.
6. Assemble in reverse order.
Interposer and Interposer Link
REMOVAL
1. Remove punch unit from
machine.
2. Remove magnet unit from punch unit. It is not
HORIZONTAL REGISTRATION VERTICAL REGISTRATION
ADJUSTING SCREW ADJUST SCREWS (2)
BUSHINGS (4)
Figure 3-31. Punch Unit Adjusting Screws
3-26
necessary to remove the magnet bar assemblies.
3. Remove latch spring. See Figure 3-34.
4. Push latch to its lowest limit of travel. If this
travel is not sufficient, remove the magnet bar
assembly that contains the punch magnet con-
trolling position to be removed.
5. Unhook interposer link from latch.
6. Remove interposer and interposer link.
7. Assemble in reverse order.
Interposer Guide Bar
ADJUSTMENT
1. Remove punch unit from machine.
2. Check for .005" to .010" clearance between inter-
posers and punch head.
a. With the punch magnet de-energized, insert
.007" feeler gage between punch and inter-
poser. See Figure 3-34.
b. Rotate punch unit camshaft through a com"
plete revolution, and cll:eck that feeler gage
experiences light drag at tightest point.
3. Adjust interposer guide bar.
a. Slightly loosen interposer guide bar clamp-
ing screws. See Figure 3-34.