Paper Feed Mechanism - IBM Selectric I/O Reference Manual

Bell Ringer Bail
Contact Actuator
PAPER FEED MECHANISM
NOTE: For pin feed platen machines use adjustments 7, 8
and
10
only.
1.
Before any paper feed adjustments are attempted, the
position of the platen MUST be correct.
2.
Paper Feed Braces - (early paper feed mechanism only) -
With the feed roll tension springs disconnected the adjust-
able braces fastened to the paper feed mounting arms should
be adjusted all the way forward without deflecting either
the feed roll actuating shaft or the carriage tie rod (Fig.
187) .
SI ight Rise Carriage Tie Rod
FI GURE
185.
Last Column Contact
2,.
As
the carrier moves from the next to last space to the
last space, the contact transfer must be complete.
NOTE: To place the carrier in the next to last space,
proceed as follows:
1. Space to the right until the carrier pointer lines up
with the mark on the RH margin set lever.
2. Backspace two spaces.
Contact
FIGURE
186.
Last Column Contact (New)
Support
Carriage Tie Rod
.015"
To
'03~O"
1-/
---
/
{/
~\
Ii
-ifr )
,"
' " 1 /
,_ t-/
Feed Roll
Actuating Shaft
FIGURE
187.
Paper Feed Mechanism
3. Paper Feed Supports
a. Early Paper Feed Mechanism - With the feed roll
tension springs disconnected, the vertical supports
for the carriage tie rod and the feed roll actuating
shaft should be adjusted to just touch the bottom of
each shaft (Fig.
187).
The feed roll actuating shaft
support should be loose when the tip, rod support is
adjusted.
b. Late Paper Feed Mechanism - With the feed roll
tension springs disconnected, the center support
bracket (Fig.
188)
should be positioned so that the
forward lug just touches the underside of the feed
roll shaft whi Ie the rear lug just touches the top of
the carriage tie rod. The center support bracket
should not bow the copy control shaft.
4. Feed Roll Tension - Place the feed roll tension springs
in the hole of the front feed roll arms that wi! I
provid~
-2 to 2-1/2 pounds tension measured at the front feed
roll pivot points.
2-54