Brother LK3-B448E - Manual (Page 50)

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10. Adjustment
LK3-B448E MARK II /BA-16
10-11. Adjusting the button clamp height
Adjustment
1. After turning on the power switch, turn AUTO 1 or AUTO 2 the feeder switch.
2. The button carrier will move slowly if the foot switch is turned on with the manual switch depressed.
The sewing machine will operate in inching mode while the manual switch is being pressed, and will stop when the
manual switch is released.
3. Stop machine inching when button transport arm
q
moves and the button is at button guide surface A.
4. Make sure that top of button carrier
w
is flush with the button guide surface of button clamp
e
.
If they are not properly aligned loosen screw
r
and move button clamp holder
t
up or down.
5. Loosen screw
y
, set presser bar lifter hook A
u
against presser bar lifter roller arm
i
, and tighten screw
y
.
* Press the manual switch to return the button transport arm q when the adjustment is completed.
6. Turn off the power to cancel inching operation.
Surface A
Button
Button guide surface
Flush