Brother BAS-311G service manual Needle bar mechanism, Assembly, Inside hole

6. ASSEMBLY

6-9. Needle bar mechanism

Apply grease <GREASE BZL-301 (SA2694-001)> specified by Brother to the portions indicated by the white arrows.

Set so that this hole faces upward, and then push in gently while tightening the set screw to install.

Inside hole

5142Q

Left-hand thread

Fit the chamfering side of the slide block into the groove on the slide block guide.

After securing the needle bar, position the slide block guide so that the machine pulley turns smoothly, and then tighten the bolts.

1. Slide block guide

2. Bolts [2 pcs] (Temporarily tighten)

3. Washer

4. Thread take-up lever assy

5. Needle bearing

6. Needle bar crank

7. Set screws [2 pcs]

8. Set screw

9. Needle bearing

While gently pushing the needle bar crank in the shaft direction, align the set screw with the screw stop and then tighten the set screw.

10.Needle bearing

11.Screw

12.Thread take-up support

13.Thread take-up support shaft assy

14.Set screws [2 pcs]

15.Rubber caps [2 pcs]

16.Rubber cap

17.Slide block

BAS-311G, BAS-326G 77