Brother International BAS-411 Instruction Manual - English - Page 167

Brother International BAS-411 Manual

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tWVIf043 Problem 8. Machine operates incorrectly. 9. Upper shaft is locked at some point of a cycle. ae pis Ss 4'I Check point 1. Is set screv- of rotary encoder loosened? 2. Is set screw of machine pulley loosened? 3. Is set screw of N65 pulley loosened? 4. Is synchronizer adjusted properly? 5. Are wires of carriages X and Y off? 6. Are set screws of wire drums X and Y loosened? 7. Are set screws of pinion gears in pulse motors X and Y loosened? 8. Is sewing data in floppy disk normal? 1. Is movable knife for thread trimming stopped in middle of operation? [How to adjust] Remove thread or other interruption for correct thread trimming operation. Remove needle plate and reset it in proper position manually as in the figure below. movable knife 0 O O O 0 1 mm O [NOTE] When movable knife is in middle of operation, the safety system works so that the upper shaft cannot rotate. 2. Is thread take-up stopped with striking upper case cover? [How to adjust] thread take-up upper case cover 00° set screw L needle bar case inner thread guide thread take-up operating lever Loosen the bolt of the thread take-up operating lever to adjust movable range of thread take-up, then re-tighten it. 3 Is position of needle bar clamp or stopper correct? -163-

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tWVIf043
ae
pis
Ss
4'I
Problem
Check
point
8.
Machine
operates
incorrectly.
1.
Is
set
screv-
of
rotary
encoder
loosened?
2.
Is
set
screw
of
machine
pulley
loosened?
3.
Is
set
screw
of
N65
pulley
loosened?
4.
Is
synchronizer
adjusted
properly?
5.
Are
wires
of
carriages
X
and
Y
off?
6.
Are
set
screws
of
wire
drums
X
and
Y
loosened?
7.
Are
set
screws
of
pinion
gears
in
pulse
motors
X
and
Y
loosened?
8.
Is
sewing
data
in
floppy
disk
normal?
9.
Upper
shaft
is
locked
at
some
point
of
a
cycle.
1.
Is
movable
knife
for
thread
trimming
stopped
in
middle
of
operation?
[How
to
adjust]
Remove
thread
or
other
interruption
for
correct
thread
trimming
operation.
Remove
needle
plate
and
reset
it
in
proper
position
manual
ly
as
in
the
figure
below.
0
O
O
0
movable
knife
1
mm
O
O
[NOTE]
When
movable
knife
is
in
middle
of
operation,
the
safety
system
works
so
that
the
upper
shaft
cannot
rotate.
2.
Is
thread
take-up
stopped
with
striking
upper
case
cover?
[How
to
adjust]
thread
take-up
upper
case
cover
needle
bar
case
inner
thread
guide
00°
set
screw
L
thread
take-up
operating
lever
Loosen
the
bolt
of
the
thread
take-up
operating
lever
to
adjust
movable
range
of
thread
take-up,
then
re
-tighten
it.
3
Is
position
of
needle
bar
clamp
or
stopper
correct?
—163—