Brother LH4-B800E Service Manual page 74

!3
!2
Insert the needle bar w into the needle bar bracket assembly q, and then pass it through the needle bar clamp e as shown in the illustration.
Set the projection of the needle bar clamp e into the groove in the needle bar guide r, and then install to the needle bar bracket assembly q with the bolt t so that
the needle bar w moves smoothly.
Insert the slide block y of the needle bar bracket assembly q into the zigzag lever shaft u, and insert the slide block i of the needle bar clamp e into the thread
take-up lever set o.
Insert the needle bar bracket assembly q into the arm, and then install it while inserting each of the slide blocks.
Pass the wick @1 of the needle bar bracket support shaft !0 through the arm.
Insert the needle bar bracket support shaft !0 , and then secure it by tightening the set screw !1 so that there is no play in the needle bar bracket assembly q.
Insert the needle bar bracket guide !2 into the arm, and then secure it by tightening the set screw !3 so that there is no play in the needle bar bracket assembly q.
Install the set screw !5 and nut !6 to the stopper !4 , and then install it to the arm with the screw !7 .
Install the set screw !8 and nut !9 to the arm.
When the needle bar w is at its maximum zigzag position, tighten the set screws !5 and !8 against the needle bar bracket assembly q, and then loosen them again
by about 1/4 of a turn each. Then tighten the nuts !6 and !9 .
Insert the needle bar thread guide @0 into the needle bar w.
!1
@1
!0
q
e
w
@0
q
r
e
t r
Place onto projection
of needle bar clamp
set
!5
!4
!7
LH4-B800E
3. ASSEMBLY
q
o
i
u
y
!9
!6
!8
3 - 19