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ring when the ti It ring play is removed in the restoring
di recti on (Fig. 64).
As the ti It detent is a II owed to seat
itself, the rear of the tilt ring should rise slightly. This
is a preliminary adjustment and will require refinement
after the proper ti It arm motion is obtained.
,,-----
.......
".
.......
/
Rear Tooth
"
Ti It Detent
Detent Enters SlightIY _ _
~r--""'~
To The Rear
FIGURE 64.
Rough Homing
-
."",./
\
\
I
I
I
I
/
Once the print shaft has been preliminarily timed and
the ti It ring rough homed, all of the following adjust-
ments that require half-cycling should be done under
power so as to inc lude a II the stresses on the system.
When the ti It arm motion is adjusted properly, a half-
cycled (3-tilt) character will coarse align the same as a
half-cycled (a-tilt) character. That is, both selections
will provide the same rising action to the rear of the tilt
ring as the detent is allowed to seat in the detent notch.
If the O-ti It and 3-tilt coarse align the same, the l-ti It
and 2-tilt selections will also coarse align the same be-
cause of the leverage designed into the system.
NOTE:
The right hand ti It pulley rock nut may be left
loose while making the tilt arm motion adjustment, be-
cause a slight readjustment of the pulley may be neces-
sary during the ti It arm motion adjustment.
On late level machines the·ti It aOrm link has a horizontal
elongated mounting hole where it fastens about the
shouldered screw on the ti It arm and the ti It arm is lightly
spring loaded away from the side frame by a hairpin
spri ng. The ti It pu Iley spri ng is far stronger than the
hai .. pi n spri ng
1
thus holdi ng the ti
It
arm against the right
hand end of the elongated mounting hole in the link.
Although this modification has no definite effect on a
ti It operation, its function is t.o remove any slack that
may appear in the tilt tape. An example is when an
operator changes the typehead she may accidentally tilt
the head causing the tape to slacken.
UPPER CASE
Tilt
Home Position
T;II
Megno',
I
I
I
I
I
I
I
I
I
I
!
I
I
I
I
I
I
I
I I
I
I
I
I I
~
TI
T2
LOWERCASE
III
Illll
III I
00
Rotate_-S
-4
-3
-2
-I
0
.1
+2
+3
+4
+5
I I
I
I I I I I I ' :
~otote
M.agnets
R 2A
R2
RI
R-5
Clock ..... ise
t
Counterelockwise
I
I
T=Contoct Tr"onsferred
E = flagnet Enerqised
Note: If possible CE should note what
characters are I/O home and which are
latch home
FI GURE 65.
T ypehead Chart
4.
Tilt Ring Homing - With a zero-tilt character half-cycled
and the tilt ring play removed in the negative or restoring
direction (Fig. 66) adjust the right hand tilt pulley so that
the rear of the tilt ring will rise about .005" when the de-
tent is manually allowed to seat in the detent notch(Fig.
67 A).
Note:
The rear of the ti It ring is nearest the
platen.
2-18
.
~
. . . .
'.'
...
~')?I
LIGHT PRESSURE
~
FIGURE 66. Removing Tilt Ring Play
Check the other tilt positions and then refine the homing
adjustment on the tilt selection that provides the least
amount of rise to the rear of the tilt ring.
As a further check, remove the ti It ring play in the pos-
i ti ve di recti on and observe the detent entry on the for-
ward side of the detent notch (Fig. 678).
The detent
shou Id enter far down the forward s lope of the detent
notch but not so far that it contacts the tip of the tooth.
By homing the ti It ring off center
f
favoring the
po~itive
si de of the detent notch
I
a maxi mum amount of wear
potential is achieved.
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