Alignment Procedures Of Mechanism - Emerson SC319C Service Manual

ALIGNMENT PROCEDURES OF MECHANISM

The following procedures describe how to align the
individual gears and levers that make up the tape
loading/unloading mechanism.
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
individual 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
Bottom View
Alignment 1
Alignment [a] can be done independently of any
other alignment.
Since information
Alignment [a]
Alignment 3
Alignment 2
Fig. AL1
2-4-9
Alignment 1
Loading Arm, S and T Assembly
Install Loading Arm S and T 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 T Assembly so that the last
tooth of the gear meets the most inside teeth of the
Mode Gear. See Fig. AL2.
Triangle Marks
Loading Arm
T Assembly
Alignment [a]
Tape Guide Assembly
Measurement of the screw must be as specified in
Fig. AL3.
Tape Guide
Assembly
Alignment 1
Loading Arm
S Assembly
Last Tooth
Alignment 2
Most inside teeth
of Mode Gear
Mode Gear
Fig. AL2
Screw
3.25 – 0.1 mm
0.128 – 0.004 inch
This alignment can be
done independently of
any other alignment.
Fig. AL3
U25NAPM