Brother BAS-311G service manual Intermittent presser foot lifter mechanism, Assembly

6. ASSEMBLY

6-10. Intermittent presser foot lifter mechanism (2)

Install the presser bar spring collar as shown in the illustration, and then adjust the height of the presser adjusting screw to 32 mm.

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Notes on the installation position

(Refer to “7-13. Changing the intermittent stroke”.)

Tighten the set screw on the screw flat while lightly pressing the link shaft.

1)With the needle bar lowered approximately 6.5 mm from its highest position, set the stepping clamp arm F to the position of the straight line in the illustration.

2)Place a bushing in between stepping clamp arm F and stepping clamp arm R so that there is no play, and then tighten the bolt.

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At the needle bar timing position, align the index marks of the stepping clamp cam and the stepping clamp connecting rod, and then tighten the set screw.

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1.Stepping clamp arm F

2.Stepping clamp arm R

3.Set screws [2 pcs]

4.Bolt

5.Presser bar clamp

6.Presser bar

7.Bolt (Temporarily tighten)

8.Stepping clamp lifter link

9.Washer

10.Link shaft (with retaining ring)

11.Set screw

12.Shoulder screw

13.Screw

14.Shoulder screw

15.Screw

16.Presser bar spring collar

17.Presser bar spring

18.Presser bar spring guide

19.Adjusting screw nut

20.Presser adjusting screw

21.Presser foot

22.Plain washers [2 pcs]

23.Finger guard

24.Screw (Temporarily tighten)

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BAS-311G, BAS-326G 79