Impression Control Bar Adjustment; Timing Disk Transducer Adjustments - IBM 1403 Field Engineering Maintenance Manual

6. If the clearance is incorrect on the right end of the
T -casting, perform step 7. If the clearance is in-
correct on the left end of the T -casting, perform
step 8.
7. To adjust the right end of the T-casting, loosen the
setscrew on the inside lower end of the T -casting
hinge pin. Close the T -casting and loosen the other
locking setscrew which is accessible with the T-
casting closed. Rotate the T -casting hinge pin until
a light drag on the tool is obtained at .011" thick-
ness. Lock the hinge pin with the setscrew.
8. Adjust the left end of the T-casting by loosening
the locknut and positioning the adjustable stop
stud until a light drag on the tool is obtained at
.011" thickness.
Note: Following Steps 7 and 8, the .100" dimension be-
tween
the
hammer blocks and the train should be re-
checked at both ends of the cartridge.
9. The T -casting latch may require adjusting for suffi-
cient tension of the casting on the stop stud to
maintain the T -casting latched. Loosen the two
holding screws at the side of the latch, and adjust
the allen-head screw from the rear of the printer.
10. Tighten the T -casting hinge pin locking screw on
the inside of the T -casting.
11. Make a final check with the tool at both ends for
proper setting. Readjust if necessary.
Impression Control
Bar Adjustment
Note: This adjustment may be done in or out of the machine.
1. Set the density control to A, if adjusting in the ma-
chine. (The density control automatically returns to
the A-setting when the hammer unit is removed.)
2. Check, and adjust, if necessary, the .047" location
of the impression control bar. Use tool (part 452457)
and measure between the front edge of the impres-
sion control bar and the front edge of the hammer
unit locating block (see Figure 82). Adjust the po-
sition of the impression control wedges to get the
.047" dimension (Figure 89). Check both ends.
Loosen the wedge holding screw and insert a screw-
driver into the wedge slot to move the wedge.
Tighten the holding screw.
Forms Compressor Adiustment
Raise the translating frame as high as possible, if ad-
justing in the machine. Adjust the setscrew in the bot-
tom of the form compressor to bring its front edge
Impression Control Bar
.041
1403-3
.047
Alignment Tool (452457)
Hommer Unit
locating Block
Figure 89. Impression Control Bar Positioning
.032" from the front edge of the impression control bar
in a horizontal direction. Use tool 452457. Lay the cut-
out end on the impression control bar, with the .032"
. edge adjacent to the compressor (Figure 90). Make the
adjustment while applying finger pressure in a vertical
direction to the bottom of the compressor to remove
clearances in the pivot pin area.
Timing
Disle
Transducer Adjustments
1. Remove the ribbon and cartridge.
2. Remove the transducer and gear cover.
1403-3 Alignment Tool (452457}
Compressor
Adjusting Screw
Figure 90. Form Compressor Adjustment
Impression
Control Bar
91