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5-3 ALIGNMENT PROCEDURES OF MECHANISM
The following procedures describe how to align the
individual gears and levers that make up the tape load-
ing/unloading mechanism. Since information about the
state of the mechanism is provided to the System
Control Circuit only through the Mode Switch, it is
essential that the correct relationship between individ-
ual gears and levers be maintained.
All alignments are to be performed with the mech-
anism in Eject mode, in the sequence given. Each
procedure assumes that all previous procedures have
been completed.
IMPORTANT:
If any one of these alignments is not performed
properly, even if off by only one tooth, the unit will
unload or stop and it may result in damage to the
mechanical or electrical parts.
Alignment points in Eject Position
Top View
Alignment 1
Bottom View
Alignment 1
Loading Arm (SP) and (TU) Assembly
Install Loading Arm (SP) and (TU) Assembly so
that their triangle marks point to each other as
shown in Fig. AL2.
Alignment 2
Mode Gear
Keeping the two triangles pointing at each other,
install the Loading Arm (SP) Assembly so that the
last tooth of the gear meets the most inside teeth
of the Mode Gear. See Fig. AL2.
Loading Arm
(TU) Assembly
Alignment 1
Alignment 3
Alignment 3
Cam Gear (A), Rack Assembly
Install the Rack Assembly so that the first tooth on
the gear of the Rack Assembly meets the first
groove on the Cam Gear (A) as shown in Fig. AL3.
Alignment 2
Top View
Fig. AL1
5-15
Triangle Marks
Cam Gear (A)
First groove
Gear on Rack Assembly
on the Cam Gear (A)
Loading Arm
(SP) Assembly
Last Tooth
Alignment 2
Most inside teeth
of Mode Gear
Mode Gear
Fig. AL2
Alignment 3
First tooth
Fig. AL3
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