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.005"
to
.008"
Adjusting
Screw
.S.
nip
i
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e .Imym.
03=2E_7(-)
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Figure 12. Space Magnet Stop Position
.005"
to .008"
C= _.
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11
(
.
~.
0 ®
.020"
to
.025"
-t---Detent Wheel
Detent Piston
Detent Arm-t-
Detent
Eccentric
Backstop
Figure 11. Positioning Space Magnet Armature
2.
Remove the valve body assembly.
3. Turn off the printer main-line switch and leave off
to prevent the operation of the carriage drive motor. Some
of the following adjustments require that the system power
be on so that the hydraulic unit space start and space stop
magnets can be energized.
4. Add or remove the shims under the pivot support
block to obtain .011" to .013" clearance between the start
and stop magnet cores and the armature (Figure 11) . The
nominal clearance between the armature and the magnets
when in the neutral (de-energized) position is 0.011" to
0.013". Some spool valve units have a 0.011" to 0.014"
clearance which is correct. The spool valve adjustments
are not critical. Normally, this adjustment will have to be
changed only if related parts have been replaced.
5. Energize space stop magnets.
a. Connect the wires to the space stop magnets.
b. Insulate (tape) individually the ends of the other
wires.
c. Turn on the system power.
6. With the space stop magnet energized, adjust the
back stop screw nearest the operating rod for .005" to .008"
clearance (preferably .005") between the armature and
the stop magnet cores (Figure 12) .
7. Turn off the system power.
8. Energize space start magnets.
a. Remove the wires from the space stop magnet
terminals and insert into the space start magnet
terminals.
b. Turn
on the system power.
9. With the space start magnet energized, adjust the
backstop farthest from the operating rod for .005" to .008"
clearance (preferably .005") between the armature and
the start magnet cores ( Figure 13) .
NOTE:
If it is objectionable to use a steel feeler gage in
the preceding steps because of the attraction of the ener-
gized control magnets, the use of an IBM card to obtain
these adjustments is permissible.
10. Slow operation will result from a clearance of less
than .005". There are no residuals on the armatures or
cores.
11. Turn off the system power.
12. Whenever this adjustment has been made, the space
control valve adjustments must be checked or made.
Adjusting Sore
Figure 13.
Space Magnet
Start Position
Space Control Valves Adjustments
1. First,
check, or adjust the space control magnets.
2. Insure that at least half of the lower threaded portion
of the operating rod is screwed into the control valve and
that the locking nut at the upper end of the control valve
is tight.
'3. Turn on the system power.
4. With the space start magnet energized, adjust the nuts
at the top of the operating rod for .009" to .011" clearance
between the top of the valve and the top surface of the
rectangular port in the valve body (Figure 14).
a. This should result in .009" to .015" clearance be-
tween the bottom of the valve and the lower surface
of the rectangular port with the stop magnet energized
and the armature in the stop position ( Figure 15) .
b. The nominal adjustments of the .011" to .013"
clearance and the .005" to .008" clearance for the con-
trol magnets will result in a .020" to .024" control
valve travel.
c. If the .009" to .015" clearance does not fall within
the prescribed dimensions, the space control magnets
must be re-adjusted within tolerance, to obtain the cor-
rect clearance.
5. Turn off the system power.
6. Turn the tab on the lockwashers over to keep the nuts
from loosening during operation.
7. Replace the valve body assembly.
Figure 14. Space Valve
Figure 15. Space Valve
Start Position
Stop Position
Skip Control Magnets Adjustments
NOTE:
Adjust in the same manner as
Space Control Mag-
nets Adjustments.
Skip Control Valve Adjustments
NOTE:
Adjust in the same manner as
Space Control Valves
Adjustments.
Hydraulic Detent Stop Adjustments
1. Raise the tape brushes to prevent any possible dam-
age to them during this adjustment (if the reservoir can
be removed with hydraulic unit in machine) .
2. Remove the reservoir that encloses the hydraulic unit.
3. Insure that the carriage is turned only in the forward
direction. The emitter brushes may be damaged if the
carriage is turned backwards (if the reservoir can be moved
with hydraulic unit in machine) .
4. Position the backstop with the high side of the eccen-
tric down. This causes the detent arm pounding to tighten
the holding nut.
5. Adjust the detent backstop for a clearance of .020"
to .025" between the detent arm and the detent wheel
when the arm is held against the backstop (Figure 16) .
6. Replace the reservoir that encloses the hydraulic unit.
Space Needle Valve Adjustments
1. Set
up the carriage.
a. Remove the paper from the carriage.
b. Tape
the form stop contacts closed.
c. Engage the manual clutch in either the 6 or the 8
lines-per-inch position.
d. Install an unpunched carriage tape.
e. Lower the tape brushes.
2. Start the carriage by depressing the carriage restore
key.
3. Before adjusting the needle valve, allow the carriage
to idle for at least fifteen minutes to bring the oil tempera-
ture up to operating level. The hydraulic unit should be
hot to the touch before the needle valve adjustments are
made.
4. Loosen the lock
screw
for the center needle valve
(the center right screw, Figure 17).
Figure 16. Detent Adjustment
5. Adjust the needle valve to cause the detent to nip
as
follows:
a. Hold a screwdriver against the detent arm at the
notch.
b. Back off on the center left screw (Figure 17) until
you can feel the detent nip the detent wheel. The im-
pact will be transmitted through the screwdriver.
6. Adjust the needle valve to cause the detent to stop
nipping:
a. Turn down on the center left screw until the detent
stops nipping.
(1) Press down on the screwdriver, and feel the
play between the detent arm and the detent stop stud.
(2) Turn down screw gradually until all play dis-
appears.
b. Tighten the lock screw (the center right screw).
7. After this adjustment has been made, the skip needle
valve
must be adjusted.
Skip Needle Valve Adjustment
(2-Speed Carriage Machines)
1. First, the space needle valve must be adjusted.
2. Set up the carriage. Check that
a. there is no paper in the carriage.
b. the form stop contacts are closed.
c. the manual clutch is engaged.
d. unpunched carriage tape is installed.
e. the tape brushes are lowered.
3. Start the carriage in a programmed skip to 1 before
print. This should result in a skip to 1 at high speed with
no stop impulse available.
4. Loosen the lock screw for the skip needle valve (the
front right screw, Figure 17).
5. Adjust the skip needle valve as follows:
a. hold a screwdriver against the detent arm at the
notch.
b. back off on the front left screw (Figure 17) until
you feel the detent nip the detent wheel. The impact
will be transmitted through the screwdriver.
(1) If no nipping is detected after turning out a
maximum of
five turns,
stop the carriage motor so
cd .
30
REMOVALS AND ADJUSTMENTS
31
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