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Model 280B
Maintenance
1/4"
TAPE
,Uii....
"'ll~--
NOTE:
SPRIN
G
SHOWN
IN
lJ2.INCH
TAPE
POSITION
.
ADJUSTMENT
SCREW
1/2" TAPE
Figure 7-9. Constant Tension Assembly
7.8 ATL Adjustments (Figure 7-10)
A. Check that the plunger stop collar (3) is flush
with the end of the solenoid plunger (7) and
that the setscrew (2) is tight.
B. Check that there are two felt bumpers (4 and
8) on each side of the plunger stop collar (3).
C.
Set the plunger solenoid stop (5) so that it is
1.0 inch (25.4 mm) from the front face of the
solenoid, as shown in Figure 7-10. Then tight
en the two adjustment screws (6) securely.
D. Loosen the setscrew (1) in the actuating arm
and position the tape lifter post (9) so that it
clears the tape by 0 .025 to 0.050 inch (0.635
to 0.270 mm) when the solenoid is de-ener
gized.
NOTE
When the ATL is correctly ad
justed the felt bumpers will
stop the motion of the ATL
at both extremes of travel.
7.9 CHECKOUT AND ALIGNMENT
PROCEDURES
The following
checkout
and alignment procedures
should be performed at the time of installation and
.
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"
.
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:
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,
I
,
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;1
I
.
I
,
b i
(
=j~
~
~
VIEW
OF
AT_
I-'=,Y(
WIT
H
TRAN
PORT
IN
VERTI
CAL
POSITION
Figure 7-10. ATL Adjustment
7-9
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