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Drive Gear Adjusting-.-
Screw Block
T - Lever
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Lower Ribbon Guide
Movable Base\
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T-Casting
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1
Ribbon Shield Bracket
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Hinge Pin
Friction Clamp
Eccentric Shaft
Oil Reservoir
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Figure 5. T-Casting
the hammer unit mounting slot in the translator frame and
the top right surface of the movable base.
2. Adjust the shock block on the T-casting to obtain
this dimension measured between the lower surface of the
hammer unit mounting slot in the left side of the trans-
lator frame and the top left end of the movable base.
Position the T-casting front to rear ( factory specification
and adjustment).
1. With the print impression control lever set at C, the
face of the type is to be positioned a distance of 0.716"
±0.002" and parallel to the rear surface of the upper tractor
guide bar within 0.002". This may be accomplished by the
simultaneous adjustment of the eccentric pivot pin on the
right end of the T-casting and the gate latch bumper screw
on the left end of the translator frame.
Position T-Casting Horizontally-Field
(Figures 2 and
5)
This adjustment depends upon the hammer unit being
located correctly front to rear and the type array and
movable base being adjusted correctly on the T-casting.
If doubt exists as to the correctness of these prerequisites,
the factory adjustments must be used.
Prepare to position the T-casting horizontally.
1. Remove the forms from the machine.
2. Remove the ribbon shield and print line indicator at
the hinge.
3. Remove the upper paper guide support bar.
4. Remove the hammer cover (nose cone) .
5. Remove the ribbon.
6. Set the print impression control lever to C.
Check the positioning of the T-casting horizontally.
1. Lock or hold the T-casting against the gate latch
bumper screw on the left.
2. Check for a clearance between the face of the ham-
mers and the rear top lip of the type cartridge of 0.078"
(slight drag) .
3. Check for this clearance both to the left and to the
right.
4. If the clearance is correct, no adjustment is needed.
Replace the remaining parts in reverse order.
Position the T-casting horizontally.
1. Loosen the hinge pin set screw at the lower right
end of T-casting.
2. Turn the vertical eccentrics by turning the hinge pin
with a screwdriver to obtain the correct clearance at the
right end.
3. Tighten the hinge pin set screw.
4. Loosen the gate latch bumper screw lock nut.
5. Turn the gate latch bumper screw to obtain the cor-
rect clearance at the left end. The latch position must be
adjusted correspondingly. This adjustment is accessible
from the rear of the machine ( Figure 5) .
6. Tighten lock nut.
Replace remaining parts in reverse order.
Position T
-
Casting Vertically
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Field (Figure
5)
This adjustment depends upon the hammer unit being
located correctly front to rear and the type array and mov-
able base being adjusted correctly on the T-casting.
Prepare to position the T-casting vertically.
1. Use a two-part form and strip off the last copy, leav-
ing the last carbon exposed to the hammers.
2. Set up processing unit to print one line of alternate
W's and M's.
3. Remove the ribbon.
4. Latch T-casting closed.
5. Set the print impression control lever to A.
Check the vertical positioning of the T-casting.
1. Print one line of alternate W's and M's.
2. Open the T-casting.
3. Remove the forms.
4. Observe the imprint of the characters on the hammers.
5. If the imprint is located evenly between the upper
and lower edges of the hammer faces, no further adjust-
ment is necessary. Replace the ribbon.
Adjust the vertical position of the T-casting.
1. Position the right end of the T-casting.
a. Loosen the hinge pin bushing set screw in the
upper arm of the translator frame.
b. Loosen the lower jackscrew lock nut on the lower
right arm of the translator frame.
c. Turn the upper jackscrew lock nut to obtain the
vertical adjustment.
d. Tighten the lower jackscrew lock nut.
e. Force the hinge pin bushing down and tighten the
set screw.
2. Position the left end of the T-casting.
a. Loosen the chock block on the T-casting to obtain
the vertical adjustment.
b. Slide the chock block on the T-casting to obtain
the vertical adjustment.
c. Clamp the chock block to the T-casting.
3. Position the ribbon shield and the print line indicator.
Refer to that adjustment.
4. Recheck the vertical position.
Replace ribbon.
Adjust T
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Casting Latch (Figure
3)
Remove the interlock switch cover. Check the adjustment
of the T-casting latch.
1. Open the T-casting.
a. Operate the interlock detent and move the lock
lever to the latched position (handle resting against
stop stud).
b. Check that the high side of the eccentric is toward
the front and provides positive locking action (high
side 8° ±1° above the horizontal).
c. Check that the interlock switch just makes when
the latch handle is 1
% 6"
from the latch handle stop stud.
2. Close the T-casting.
3. Check that a 2- to 6-pound force ( applied at the
center of the ball) is required to operate latch.
If the conditions just stated are met, no further adjust-
ment is necessary. Replace the interlock switch cover.
Position the eccentric shaft.
1. Open the T-casting.
2. Move the T-casting lock lever to the latched position
( the handle resting against the stop stud) .
3. Loosen the clamp screw in the handle.
4. Position the high side of the eccentric toward the
front.
5. Further position the high side of the eccentric above
the horizontal so that the latch just provides a positive
locking action (8° ± 1° above the horizontal).
6. Clamp the handle to the eccentric shaft.
Adjust the interlock switch.
1. Position the latch handle %6 " from the latch handle
stop stud in latching position.
2. Position the interlock switch actuator on the eccentric
shaft so that the interlock switch just makes.
3. Lock the actuator to the shaft.
Position the gate latch catch (Figures 2 and 3) .
1. Loosen the gate latch catch holding screws.
2. Latch T-casting closed.
3. Turn the gate latch adjusting screw ( socket head) to
draw the T-casting against the gate latch bumper screw
(hex head).
Adjust the latching force.
1. Turn in on gate latch adjusting screw 1 6" turn.
2. Tighten the holding screws.
3. Latch the T-casting and observe the latching force.
4. If the latching force is 2 to 6 pounds applied at the
center of the ball, the adjustment is correct.
5. If the latching force is not correct, loosen the gate
latch catch holding screws and re-adjust the adjusting
screw as necessary.
6. Tighten the holding screws.
Replace interlock switch cover.
Type Array (Cartridge Assembly)
Type Array Removal
1. Remove the ribbon.
2. Remove the four allen head screws which hold the
type array.
3. A stud at the right in the type array fits into a slot
in the movable base to position the right end of the type
array front to rear.
4. The boss on the bottom of the drive sprocket fits into
the bearing hole of the timing disk to align the left end
of the type array front to rear and left to right.
5. Lift out the array.
Replace in reverse order. Be certain that the cartridge
seats firmly on the base. Replace the ribbon.
Type Array Disassembly
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Out of Machine (Figure 6)
1. First, read the following steps and decide which are
necessary for the job at hand. The platen should not be
removed from the center plate. The factory adjustment of
16
REMOVALS AND ADJUSTMENTS
17
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