Ground Spring; Front Cover; Front Cover Led - Seagate ST425 Service Manual

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To reinstall, apply Loctite to the first three
threads of the mounting screw. Replace the
Sensor, clamp and screw, but do not tighten.
Rotate the spindle motor until the silver index tab
aligns with the Index Sensor.
Using the .030" shim, adjust the gap between the
Index Sensor and the index tab.
Tighten the mounting clamp screw and verify that
the gap is .030 inch.
Route the Index Sensor wires through the retaining
clip and reconnect the LED connector.
Replace the PC Board.
3.1.3 Ground Spring
Tools Required: T-10 Torx Driver
Loctite #242
1. Remove PC Board (see above).
2. With the front cover to your left, the Ground Spring
is at "12:00 o'clock" to the spindle motor and may be
removed using the T-10 Torx Driver.
3. When reinstalling, apply Loctite to the first 3
threads of the mounting screw.
4. Verify that the Ground Spring contact button and the
spindle motor ball are clean and making positive
contact.
3.1.4 Front Cover
Tools Required: T10 Torx Driver .
1. Remove the PC Board (see above).
2. Remove the four front cover mounting screws.
3. Disconnect the LED connector, noting its orientation.
4. Remove the cover.
3.1.5 Front Cover LED
Tools Required: T-10 Torx Driver
Note: A water base hot-melt glue may be used to secure
the LED/grommet assembly.
1. Remove the PC Board (see above).
2. Remove the connector from the Front Cover LED, noting
the orientation of the connector.
3. Remove the LED and grommet from the Front Cover,
noting the orientation of the LED •
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