IBM Selectric Reference Manual

The adjustment insures that both bail rollers will
have equal pressure against the platen.
b. Bai I Stop - The lugs that stop the rearward movement
of the paper bai I arms shou Id be formed to obtain a
.005" to .0lO" clearance between the lugs and the
bai I arms when the copy control lever is at its ex-
treme rear posi ti on.
The adjustment prevents interference between the
bai I arms and the I ine gage card holder when the
platen is removed.
c. Retaining Clips - The retaining clips on the right
and left-hand bail lever mounting studs shall be
installed to give .002" to .006" end play to each
bail lever.
lO. Line Gage Card Holder
a. Adjust the line gage card holder forward or back
for a .005" to .0lO" clearance with the platen.
b. The vertical adjustment should be such that the
graduated edge is parallel to and .002" to .005"
below the feet of the typed characters when viewed
from the operator's position.
c. Adjust the card holder left or right so that the point
of a letter "v" wi \I align with the mark in the mid-
dle of the line gage card holder.
NOTE: On pin feed platen machines I the grad-
uations on the left hand card holders should be
lined up with
the bottom of a series of V's.
11. Paper Switch - Position the paper switch
mounting
bracket for two conditions:
a. The paper switch arm should be centered in the
cover slot (Fig. 264.1).
Paper Switch Roller
FIGURE
264.1 Paper Switch
2-88
1.
b. The status switch should transfer and re-transfer
during its travel in the slot of the paper switch
roller (Fig. 264-B).
NOTE: The top portion of the paper switch arm
should be approximately horizontal.
Paper Swi tch Arm
FIGURE 264.2 Paper Switch (Side View)
FABRIC RIBBON MECHANISM
Centeri ng Spri ngs - Wi th the ri bbon reverse interposer
centered, form the lugs of the ri bbon feed plate for
.003" to .005" clearance in the centering spring loops
(Fig. 265).
The adjustment insures that the springs are not extended
when at rest and that they wi II properly restore the mech-
anism after a reverse operation.
Form These Lugs
FIGURE 265. Centering Springs Adjustment
2. Ratchet Brake Spring - Form the left and right ratchet
brake springs so that each wi II hold its ratchet in posi-
ti on after the ratchet has been manua II y rotated far
enough to fu tly actuate the reverse mechanism (Fig.
266) .

IBM Selectric Specifications

General

Type	Electric typewriter
Introduced	1961
Keyboard Layout	QWERTY
Carriage Return	Electric
Manufacturer	IBM
Printing Technology	Typeball (golf ball)
Power Source	AC Power
Power Supply	120V AC