Singer 591 - The Arm Shaft

4. When oHwick leaders are correctly installed, replace holder screw H3, Fig. 25.
5. Adjust the three oil wick loops in holder (see Figs. 24 and 25), so that two of the loops come as close as possible
to, without touching, the two sets of needle bearings B3 while the third wick loop makes positive contact with
the thread take-up, as shown in Fig. 24.
6. Securely tighten holder screw H3.
7. Replace arm plug screw
J3.
8. Replace upper section of presser bar, upper needle bar bushing or needle bar frame and needle bar, as instructed
on pages 13,14 and 24.
9. Replace face plate, as instructed on page 2.
THE ARM SHAFT
Fig. 28
REMOVAL(See Figs. 28 to 30)
1. Remove the face plate.
2. Remove the arm sideshieldand wickand the thread take-up oil guard,asinstructed on pages 16 and 17.
3. Remove the needlebar, upper needle bar bushing or needle bar frame, presser foot and presser bar, asinstructed
on pages 13,14 and 24.
4. Removeentire thread take-up leverassembly,as instructed on pages14 and 15.
5. Loosen the four screwsin the arm top cover and remove the arm top cover.
6. Remove the feed timing screw M, Fig. 28 and loosen the set screw N, Fig. 28, in the feed and feed lifting
eccentric.
7. Loosen the two set screws P3 in the bevel gear and the two set screws Q3 in the thrust collar.
8. Loosenthe two set screwsS3, Fig.28 and removethe machine pulley.
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From the library of: Superior Sewing Machine & Supply LLC