Print Mechanism (Stick Shift) - IBM Selectric Maintenance Manual

will slightly affect the adjustment at the other end. Be
sure to recheck each adjustment.
Anvil
Frame
Power ______________
~*
Frame
Buffer
Anvil
Locking
Screws
FIGURE
96.
Carrier Buffers
(15
Inch Machines)
8. Carrier Buffers - A buffer plate attached to the right side
of the carrier and an adjusting screw under the left side
strike the top of the anvil to prevent the print shaft from
flexing downward. Each should have .002" to .004"
clearance with the top of the anvil (Fig.
96).
9. Print Cam Follower
a. Print Cam Follower Stud - Adjust the pivot stud
left or right so that the rubber roller on the follow-
er is centered on the surface of the restoring cam.
The stud is held in place in the carrier by a set
screw that is accessible from the bottom of the ma-
chine.
b. Restori ng Cam Fo
II
ower Eccentri c - Wi th the pri nt
cam follower at the high point of the cam and the
platen removed, hold the typehead toward the rear
until it is restri cted by the anvi
I
and striker. The
rubber roller should just touch the restoring cam
(Fig.
97).
Adjust the eccentric, keeping the high
_ point forward, to satisfy the condition.
NOTE: If the roller is too close to the restoring
cam, it may bind against the cam during print shaft
rotation. If too much clearance exists, the type-
head may not be restored as quickly as it should and
blurred characters may result.
10. Even Printing - Position the yoke under its mounting
screws so that the density of the left and right sides of a
printer character wi
II
be uniform.
Restore Cam
1.
6.
Striker Aga inst Anvi I
FIGURE 97. Restoring Cam Follower Eccentric
Adjustment
CAUTION: This adjustment affects the ti It ring homing
adjustment, the typehead homing adjustment, and the
detent cam and actuating lever adjustments (skirt clear-
ance). Be sure to check these after changing the posi-
ti on of the yoke.
PRINT MECHANISM - LATE STYLE (STICK SHIFT)
Adjustments one through five remain exactly the same as
they appear on the early style print mechanism. After
completing these five adjustments, begin here with ad-
justment number six.
Carrier Support (long carriage machines) - Adjust both
ends of the support vertically to maintain .001" to .004"
clearance with the bottom of the ribbon feed bracket
along the entire length of the writing line (Fig. 97.1).
.001" To .004"
!
t
FIGURE 97. I Carrier Support (Long Carriage Machines)
2-31