IBM 01 Maintenance Manual page 247

MODEL Cl
CUSTOMER ENGINEERING
s.
EQUAL PIN-CLEARANCE. Loosen the adjusting
screws and position the shift-pin
to~gle-plate
so that
the clearance between the upper and lower pins and /
their respective pusher arms are equal (Figure 33).
Figure
33.
Pin Clearance Atliustmem
6. PUSHER LINK. Refer to Medel BI, Shift Mech-
anism, Adjustment 6.
7. OPERATING LINK. Refer to Model BI, Shift
Mechanism, Adjustment 7.
8. SHIFT-LOCK BRACKET. Refer to Model BI,
Shift Mechanism, Adjustment 8.
RIBBON MECHANISM - CARBON RIBBON
The Model C carbon ribbon mechanism is com-
pletely contained within the case of the typewriter
and has been redesigned to provide easier threading
and more accurate feeding.
It is not possible to accommodate both the fabric
ribbon and carbon-paper ribbon mechanisms on the
same machine simultaneously.
If
a change of ribbon
type is desired the original mechanism must be re-
moved and the alternate device installed.
The letter cams operate the ribbon-lift bail which
accomplishes ribbon
lift
and trips the ribbon cam. (
The cam activates the ribbon-feed link and drives
the pressure rollers as on the Model B.
The supply spool is held on an inclined plate
mounted to the right side-frame (Figure 34). Ribbon
36