IBM 01 Maintenance Manual page 167

MODEL Bl CUSTOMER ENGINEERING
k. Form guide lips in the deflector just below the rear
feed rolls to cam the paper over the rear feed rolls.
1. Check the bail rolls for binds.
11. PAPER AND STENCIL WRINKLING.
a. Form the rear portion of the deflectors closer to the
platen to provide for an "ironing" action of the paper.
Adjust the front of the paper table upward to compen-
sate for changes made to the deflectors.
b. Feed roll tension should be equal between each pair
of feed rolls throughout the entire carriage length.
Use the push pull scale to check tension and, if neces-
sary, move the feed roll tension screw plate to the
right or left to equalize tension between each pair of
feed rolls.
c. Increase front feed roll tension and decrease rear feed
roll tension, being certain that feed roll tension be-
tween each pair of feed rolls is equal.
d. Crown-grind the rear feed rolls by removing rubber
from both ends of the feed rolls, leaving an unground
portion in the center approximately l/S" to 1/4" in
width.
e. Raise the deflectors to force them closer to the platen,
using electrical tape on the underside of the deflector
in the area that rests on the adjusting plates.
f. In cases of stencil wrinkling, insert an IBM backing
sheet between the stencil and the stencil backing sheet
in place of the cushion sheet.
g. Reposition the paper guide to insure full feed roll
contact.
h. Folding of the paper may occur as it strikes the front
paper scale. This can be corrected in the following
manner:
Form the front tips of the deflector toward the platen.
Polish the rear of the front paper scale with crocus
cloth.
Inspect the front paper scale for proper form and, if
necessary, reform the mounting clamps so that the
bottom of the scale is closer to the platen.
The scale must clear the front feed rolls and the front
rail dust cover.
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