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Installation
1.
Place the stepper band with its single part toward
the
front of the head assembly.
2.
Place a loop around the stepper shaft with its dual portion
toward the rear of the drive.
J.
Place the stepper band on the stud of the head assembly.
4.
Rotate the stepper motor until the center hole in the stepper
band and the hole in the shaft line up together.
5.
Install the screw and washer into the stepper shaft but do
not tighten the screw.
6.
Install the spring and tension plate onto the
head assembly.
7.
Holding the head assembly toward the rear of the dr i ve,
depress the tension plate toward the front of the drive.
8.
After setting the end of the stepper band onto the tension
pIa te, remOVe the pressu re from the plate.
The· stepper band
seats itself around the stepper motor shaft.
9.
Move the head assembly to obtain the maximum length of travel
while watching the stepper band on the stepper motor shaft.
If it maintains a straight path,
it is o. k.
If
not, relax
the tension plate, and try to smooth out the stepper band.
CAUTION
TIGHTENING THE SCREW T()() TIGHT WILL BEND THE
STEPPER BAND, CAUSING IT TO NEe:)) REPLACING.
10.
When satisfied with stepper band operation, snug up the
stepper motor shaft Screw to four-inch ounces of torque.
11.
Replace the power input plug.
12.
Replace the chassis shield.
13.
Replace the control and data circuit board.
6-9
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