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Service Manual
Removal:
1. Remove the face plate and arm top cover.
2. Remove the tension mechanism shrouder (A), pulling it forward. Loose de screw (B)
and pull out the tension mechanism assembly.
3. Remove the tension dial (N).
4. Turn adjusting knob insert (M) counterclockwise all the way to release from tension
spindle (L).
5. Remove the tension indicator screw washer (K), the tension spring (J), the tension
spring guide (E), the thread guide (H), the discs ( I ), the tension disc (C), the spring
(D) and the spindle (L).
Replacement:
1. Replace these parts the same way as described above, but in a reverse order taking
into consideration the following:
l
The two tension discs ( I ) must be assembled with their convex surfaces facing the
tension disc (C).
l
For needle thread tension adjustment see instructions under "Needle Thread Tension"
on pages 116-117.
Rev. n .
o
AGO/03
Thread Tension Assembly
48
359109-000 AGO/03
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