IBM 1403 Field Engineering Maintenance Manual page 20

Repeat for the other assembly.
Install the bearing retaining castings.
1. Slide the bearing and bearing retainer ring in posi-
tion. New machines do not have the bearing re-
tainer ring.
2. Place the bearing retaining casting in position.
3. Insert the two right holding screws and tighten un-
til almost snug.
4. Insert the two left holding screws and tighten.
5. Snug up the bearing-end screws.
6. Tighten the right bearing-retaining casting-holding
screws.
7. Tighten the bearing-end screws.
Repeat this step for the other assembly.
Position the tractor mounting bars.
1. Slide the tractors apart to extreme positions.
2. Position the tractor mounting bars against the lip
and eccentric washer on the printer casting at the
left.
3. Shift the mounting bars horizontally to vertically
position the left tractor pins on the upper mountLl1g
bar within .005" of the left tractor pins on the lower
mounting bar. Use a straightedge laid along the
tractor pins for determining vertical alignment.
Connect the vertical shaft of the forms-width ver-
nier.
1. Loosen the setscrews in the vertical coupling and
slide into engagement with the upper and lower
shaft.
2. Clamp the coupling to both shafts.
Perform the following adjustments:
1. Adjust the forms-width vernier.
2. Position the upper and lower tractor drive shafts.
Replace the remaining parts in reverse order.
Tractor Jam-Detection Device Adiustment (Old Style)
This applies to both upper and lower detection de-
vices of machines that are not equipped with tractor-
mounted jam-detection devices.
20
Check the jam-detection device.
l. The jam bail must rest against both the left and
right tractor doors.
2. The rear of the bail mounting brackets must be
flush to the rear of the forms support bar.
3. When applied at the operating edge of the bail, the
bail movement must be free.
4. A force of
~
pound (225 grams) must move the
bail away from the tractor door.
5. The switch plunger must be .010" to .015" past
the toggle point when the bail is resting against the
tractor doors.
6. The switch plunger must be free of the bail when
the tractor doors are opened against the forms-
guide support bar.
If these conditions in step 2 are met, no further
adjustment is necessary.
Adjust the jam-detection bail.
l. Loosen the bail mounting brackets.
2. Rest the bail against both forms-tractors.
3. Position the rear edge of the mounting bracket flush
to the real' side of the forms-guide support bar
within .005".
4. Tighten the mounting bracket in position.
Adjust the bail torsion spring.
l. Loosen the locknut on the spring stud.
2. Turn the screw and tighten the locknut.
3. Check for a
~
pound force to move the bail away
from the tractors.
4. Readjust as necessary.
Position the bail switch.
1. Loosen the holding screws.
2. Be sure the jam bar is against the tractor cover.
3. Locate the switch so that the switch plunger is
moved .010" to .015" past the toggle point.
4. Tighten the ho!dLTlg screws.
Forms-Stacker Assembly Adiustment
For the gravity-stacking device and single-speed
stacker, disregard the adjustments that are not ap-
plicable.
l. Stacker tension springs are to be adjusted to the
feed rolls to a point of tangency without compress-