Needle Zigzag Mechanism - Brother LH4-B800E Service Manual

3-7. Needle zigzag mechanism

r
q
Knot
12 mm
!0
Pass the zigzag connecting rod shaft q through the zigzag lever w and zigzag connecting rod e, and then secure it
by tightening the set screw r.
Pass the wick t through the zigzag connecting rod shaft q and the oil tube y, and then push it into the lubricating
hole u. Push the felt i into the lubricating hole u to prevent the oil tube y from coming out. Install the two fastening
bands o so that they face in the position shown in the illustration.
Pass zigzag lever assembly F !0 through the arm, and position it in the thrust direction using the thrust washer !1 and
the zigzag lever w. Then secure zigzag lever assembly F ! 0 by tightening the bolt ! 2 .
Install the sensor ! 3 to the zigzag sensor plate ! 5 with the screw ! 4 .
Insert the wick !6 into the motor lever shaft !7 . Place the washers !8 onto the motor lever shaft !7 . Pass the motor
lever shaft !7 through the zigzag connecting rod e and the washers !8 so that the screw stop is aligned correctly, and
then secure to the motor lever @ 0 by tightening the set screw ! 9 .
Install the zigzag sensor plate !5 to the motor bracket @2 with the screw @1 so that the screw @1 is in the middle of the
slot.
e
w
o
t
y
u
i
65 mm
!2
w
!1
!4
!7
!6
@1
!5
LH4-B800E
3. ASSEMBLY
!5
!3
@0
!8
e
!9
@2
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