IBM 01 Maintenance Manual page 453

QEFERENCE MANUAL
ATTACHMENTS
Stationary Brake
--
Platen
Figure 6. Ribbon Threading Diagram
5. Attach the ribbon to the rewind reel on the upper
spool flange by pressing together the two knobs un-
til the normally overlapping ears of the reel sections
form slots. Thread the free ribbon end into one of
these and release the knobs. Pressing the knobs to-
gether reduces the reel diameter and makes possible
easy removal of used ribbon.
6. Make certain that the ribbon .is centered in the
deflector roll grooves. Tighten by manually revolv-
ing the upper spool flange counter-clockwise, while
braking the lower spool flange with the brake lever
(projecting from below). Shortly before the ribbon
is taut, lift it between the bypassed brake shoe and
the opposite rubber pad. Hold the magnet brake
open and continue revolving the upper spool flange
but cease braking the lower one, until the hecto-
graph ink coat appears under the type bar guide.
The ribbon thus acquires the tautness determined by
the friction drum on the intermediate spool flange
(see adjustments). Finally, shut the top cover.
7. A new ribbon may be installed by gluing it to the
end of the old ribbon and threading it by revolving
the upper spool flange.
LUBRICATION AND MAINTENANCE
The ribbon deflector rolls, the brake shoes and blocks
of the magnet brakes, and the front ribbon guide
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