Adjusting The Button Clamp Lift Amount - Brother LK3-B438E MKII Instruction Manual

10-7-2. Adjusting the engagement of the movable knife and fixed knife
A
Cutting
edge
Cutting
edge
A. After the movable knife and fixed knife are properly engaged, tighten the screw as shown in Fig.1.
B. Turn the movable knife (in the direction of the arrow) while the screw is still tightened.
C. Loosen the screw.
D. Turn the movable knife (in the direction of the arrow) while the screw is still loosened.
Repeat above steps A, B, C and D four or five times to maintain the cutting performance of the knife.

10-8 . Adjusting the button clamp lift amount

The maximum button clamp lift amount is 13 mm from the top of the needle plate.
(The lift amount is adjusted 10 - 11 mm at the time of shipment.)
13mm
Remove the button clamp presser spring q, loosen the screw w and adjust the button clamp holder hook e
by moving it up and down.
* If the button clamp lift amount is too large, the button clamp will not be raised.
* If the button clamp cannot be raised or lowered, error code "E-61" or "E-63" will be displayed.
B C
e
w
LK3-B438E Mark II
10 . STANDARD ADJUSTMENTS
Fig. 1
D
Movable knife
Fix knife
Cutting
edge
Cutting
edge
q
34