Feed Mechanism - Brother LK3-B430E Mark II Service Manual

5-6. Feed mechanism (1)

Assembly steps of the feed mechanism are the same for X and Y directions.
Feed cams X and Y are similar. Be sure to check their respective markings.
1. Insert the feed cam q into the feed cam bracket w, and pass the cam shaft r with the retaining ring e
attached, through them.
2. Fit coupling hub 8 t on the cam shaft r so that there is no end play, adjust the set screw y on the screw
flat, and tighten it.
3. Adjust the set screw u of the feed cam q on the screw flat, and tighten it so that the feed cam q rotates
easily.
4. Fit the feed home position dog i on coupling hub 8 t, and tighten the screw o in the center of the slot.
5. Fit coupling hub 6.35 !1 on the shaft of the pulse motor !0 , and tighten the set screw !2 until the shaft is
protruding 2.5 mm.
e
r
Set screw
w
!0
!2
!1
u
q
y
t
LK3-B430E Mark II
5. ASSEMBLY
o
i
Screw flat
y
y
!0
!1
2.5 mm
!2
30