Brother BAS-342G PS Instruction Manual page 83
Direct drive programmable electronic pattern sewer, "perfect stitch"
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Also See for BAS-342G PS:
- Service manual (153 pages) ,
- Manual de instrucciones (86 pages) ,
- Instruction manual (84 pages)
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Problem
Incorrect tightening of
the thread.
Upper
thread
trailing
length is irregular.
Lower
thread
is
protruding from the top
of the material.
Hitch
stitch
sewing
range is too great.
Thread trailing length
underneath the material
is too short.
Sewing machine does
not operate when the
power is turned on and
the
foot
switch
is
depressed.
Cause
Needle is too thin.
Damage to the hook stopper.
Thread take-up spring tension and
height are incorrect.
Sub tension is too weak.
Fixed knife is not cutting cleanly.
Thread take-up spring tension is too
strong.
Insufficient thread take-up amount.
Lower thread tension is too weak.
Lower thread is threaded incorrectly.
Sewing speed is too high.
Needle is incorrectly installed.
Upper thread position is incorrect.
Needle is shaking.
Fixed knife position is too close to the
needle hole plate.
Safety switch does not work.
Replace the needle with one with a
higher count.
Buff the hook stopper to remove the
damage, or replace the hook stopper.
Adjust the tension and height of the
thread take-up spring.
Turn the sub tension nut to adjust the
tension.
Sharpen the fixed knife or replace it
with a new one.
Adjust the tension of the thread take-up
spring.
Adjust the position of arm thread guide
R.
Adjust the lower thread tension.
Pass the lower thread through the
window of the inner rotary hook.
Reduce the sewing speed.
Install the needle correctly.
Select the correct intermittent presser
foot.
Grind the cylinder of the intermittent
presser foot so that it does not touch
the thread.
Replace the needle with one with a
higher count.
Install the fixed knife in the correct
position.
Check if the safety switch cord is
disconnected.
Adjust the position of the safety switch.
If the safety switch is malfunctioning,
replace it with a new one.
BAS-342G PS
13. TROUBLESHOOTING
Remedy
Reference
*
P. 55
P. 24
P. 62
P. 55
P. 56
P. 24
P. 23
P. 30
P. 19
*
*
P. 62
P. 12
P. 18
*
74
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