Brother HE-800A - Manual (Page 54)

HE-800A
5. OPERATION
46
ዑ-ዑ-ዎ. Setting the knife length
Set parameter number 02 to the knife length that matches the cutter being used. (Refer to "5-4-2. Checking the length
of knife".)
Be sure to change the knife length setting if the knife is replaced with a knife of a different length.
The stitch length will be automatically determined by the value for the length of the knife which has been set. Therefore,
if the knife length is not set correctly, problems may occur, such as the bar tacking stitches being cut by the knife.
ዑ-ዑ-ዏ. Buttonhole sewing size
A. Length of knife (Parameter No.02)
B. Zigzag width (Parameter No.05)
C. Knife X space (Parameter No.06)
D. Knife Y space (Parameter No.07)
E. Front tack length (Parameter No.21)
F. Rear tack length (Parameter No.31)
G. Zigzag stitch length (A + D + D) *
H. Bar tack width (B + B + C) *
I. Buttonhole length (A + D + D + E + F) *
* Set automatically.
ዑ-ዑ-ዐ. Main restrictions when setting parameters
When the sewing area is set to 4.0 x 32.0 (default setting)
Symptom Cause Remedy
Parameter number 05
(Zigzag width) does not
become larger.
If the sewing area is 4.0 mm and parameter
number 06 (Knife X space) is set to 0.4 mm,
the zigzag width that can be entered will be
limited to (4.0 - 0.4)
y 2 = 1.8 mm.
Parameter number 06
(Knife X space) does
not become larger. If the sewing area is 4.0 mm and parameter
number 05 (Zigzag width) is set to 1.8 mm, the
knife X space that can be entered will be
limited to 4.0 - (1.8 + 1.8) = 0.4 mm.
A
Parameter number 08
(Knife X position
alignment) does not
become larger or
smaller.
The buttonhole is aligned to the left or right of
the sewing area, so only values that are within
the available space inside the sewing area can
be entered.
In the example shown in the illustration, the
alignment can only be adjusted by up to 0.2
mm to the plus side and the minus side.
Parameter number 10
(Zigzag width ratio [at
left]) does not become
larger or smaller. See illustration.
Parameter number 26
(Front tack sideways
correction) and
parameter number 36
(Rear tack sideways
correction) do not
become larger or
smaller.
See illustration.
A
3922Q
3923Q 0.4 mm
4.0 mm
4.0 mm
3924Q
Spare
0.2mm
Spare
0.2mm
1.6 mm
0.4mm
1.6 mm
1.8 mm 1.8 mm