Brother BAS-6150, Instruction Manual

Page: 74 / 107

Chapter 6 Knife replacement
BAS-6150
72
3. Lower thread trimming fixed knife and movable knife
3-1. How to dismount the fixed and movable knife
1. Open the cloth slide plate.
2. Loosen setscrew
q
.
3. Detach setscrew
e
of needle plate
w
and
dismount of needle plate
w
.
4. Unscrew setscrew
r
and dismount
movable knife
t
.
(Note) Dismount movable knife
t
so as not to dam-
age the top edge.
5. Unscrew shoulder screw
y
and detach
fixed knife
u
from needle plate
w
.
q
w
e
t
r
t
r
y
u
u
y
w
3-2. How to sharpen the fixed knife
u
i
71˚
• Sharpen fixed knife
u
with oil whet stone
i
as illustrated when cutting gets uneasy.
• Movable knife
t
can not be sharpened with
regular whet stones. Replace it with new
one when the cutting gets uneasy.
1516S
1515S
1514S