Brother LK3-B430E Mark II Service Manual page 39

Feed mechanism (3)
o
@5
i
u
t
1. Pass the shaft of the X feed lever q through the bush w, and fit the feed cam roller e into the groove of
feed cam X.
2. Place the washer y on the bearing surface which is inside the machine and passes the tack width lever
shaft t through it. Place the Y feed lever o on the washer y, and fit the feed cam roller u into the groove
of the Y feed cam i. Then, pass the tack width lever shaft t with the retaining ring !0 and the washer y
on it, through the holes of the Y feed lever o and the hole in the machine.
3. Press the tack width lever shaft t downward, and adjust it so as to tighten the set screw !1 on the screw
flat.
* Pay attention to the weight of the Y feed lever.
4. Put the driver into the end of the Y feed lever o, and press the X feed lever q downward.
5. Tilt the machine head until it stops.
6. Place the set screw collar !2 on the shaft of the X feed lever q, press it in the direction of the arrow, and
tighten the set screw ! 3 .
7. Return the machine head to its original position.
8. Attach the X home position sensor ! 4 and the Y home position sensor ! 5 using the screws ! 6 and ! 7 so that
the clearance between each home position sensor and the home position dog !8 is 0.1 - 0.5 mm.
9. Fix the cord of the Y home position sensor !5 using the cord support !9 and the screw @0 .
10. Tuck the cord of the Y home position sensor !5 into the recess @1 of the machine, and fix it along with the
cord of the X home position sensor !4 using the cord support @2 and the screw @3 .
11. Insert the wicks @ 4 and @ 5 of the X feed lever q and the Y feed lever o into the hole @ 6 for lubrication.
* Do not allow the wicks to make contact with the connecting rod lever @ 7 .
!0
@0
!9
!5
y @7
!7
y
!1
o
q
LK3-B430E Mark II
!4
!8
e
r
!6
@4
@6
!3
!2
5. ASSEMBLY
@2
@3
@1
w
q
0.1 - 0.5 mm
32