Brother BAS-311E service manual Lower shaft Rotary hook, Assembly, r r e o !0

Chapter 3. Assembly

10. Lower shaft (Rotary hook) (2)

ADP ⋅ 17

r0.01 - 0.08mm

rr

e

o !0

!1

!2

r

w

DP ⋅ 5

q

y

1.Fit the inner rotary hook in the large shuttle hook.

2.Turn the pulley to raise the needle bar from its lowest position until the second highest reference line on the

needle bar q aligns with the end of needle bar bush (D)

ew. Turn the shuttle driver e so that the inner rotary hook point is aligned with the center of needle r, then tighten the bolt t.

t

3.Turn the pulley to align the inner rotary hook point with the center of the needle. Loosen the set screw y so that

uthe clearance between the needle r and the inner ro- tary hook point is 0.01 - 0.08 mm, then rotate the shuttle hook adjust stud u to adjust.

4.Turn the pulley to align the inner rotary hook point with the center of the needle r.

Loosen the set screw and adjust the shuttle hook adjust stud i so that the needle r lightly contacts the needle receiver of the shuttle driver e.

5.Remove the needle r.

i

6.Attach the large shuttle hook o to the large shuttle hook body !0.

7.Insert the bobbin !1into the bobbin case !2, then attach them to the inner rotary hook !3.

!3

44 BAS-311E.311EL.326E.326EL