IBM 1403 Field Engineering Maintenance Manual page 29

Latch
Bumper
Screw
Figure 20. T -Casting Latch Catch
Translator Frame
Position the T-casting-Iatch catch (Figure 20).
1. Loosen the T-casting-Iatch catch holding screws.
2. Latch the T -casting closed.
3. Turn the T-casting-Iatch catch adjusting screw
(socket head) to draw the T-casting against the
latch bumper screw (hex head).
Adjust the latching force.
1. Tum in on the latch-catch adjusting screw J.<l' turn.
2. Tighten the holding screws.
3. Latch the T -casting and observe the latching force.
4. If the latching force is not correct, loosen the latch-
catch holding screws and readjust the adjusting
screw as necessary.
6. Tighten the holding screws.
Replace the interlock-switch cover.
Acoustical Dampener Device
This device is for use with single-part paper forms. The
operator should rotate the brush out of position if feed-
ing problems are encountered on multiple-part or
special-type forms.
Brush Adjustment
1. Remove the forms from the machine and separate
the upper and lower tractors to their extreme left
and right positions.
I~--
Paper Entry Guide
Figure 21. Initial Brush Position
2. Close the T -casting and adjust the brush mounting
hinge to locate its lower portion about
~l'
from
the paper-entry guide (Figure 21). This is an in-
itial position.
3. Open the T -casting and insert a 6" wide single-
part form between the brush and paper-entry
guide. Locate the form in the left, center, or right
portion of the brush and pull the paper up to
project above the type cartridge.
4. Close and latch the T -casting.
5. Reinforce the top center of the 6" form with tape
to permit a gram-gage blade to be inserted and
pulled up straight without tearing the form.
6. Using gram gage (part 450459), insert the lOX
blade in the reinforced center part of the form
(Figure 22).
7. Pull in a vertical direction. A drag tension of 300
grams (± 25 grams) should be obtained in each of
the three positions along the brush: left, center,
and right. The total of these readings should not
exceed 925 grams (± 25 grams).
8. Adjust the slotted mounting hinge as required to
obtain the correct tension.
6-lnch Form
, Upper
T
rae ton
0,
.. ..
..
of
01
\+--~--
Gram Gage
0'
,
0
,
o
~
0 0
,
I
I
01
I
,
Figure 22. Brush Tension Check
29