Baby Lock Aventura (BLMAV) Instruction and Reference Guide - Manual (Page 183)

Troubleshooting
Appendix A-7
MAI
NT
EN
A
NC
E A
ND T
R
O
UB
LES
HO
O
T
ING
A
f
Pass the thread under the thread guide plate, and then
pull it up.
1 Thread guide plate
g
While using your right hand to lightly hold the thread
passed under the thread guide plate, pass the thread
through the thread path in the order shown below.
1 Shutter
h
Press .
i
Slide the thread behind the needle bar thread guide.
The thread can easily be passed behind the needle bar
thread guide by holding the thread in your left hand,
then feeding the thread with your right hand, as shown.
1 Needle bar thread guide
j
Next, use the needle threader to thread the needle.
Continue with the procedure in “Threading the
needle” in the “Basic operations” section.
Incorrect thread tension
■ Symptoms
• Symptom 1: The bobbin thread is visible from the
right side of the fabric. (Refer to illustration below)
• Symptom 2: The upper thread appears as a straight
line on the right side of the fabric.
• Symptom 3: The upper thread is visible from the
wrong side of the fabric. (Refer to illustration below)
• Symptom 4: The bobbin thread appears as a straight
line on the wrong side of the fabric.
• Symptom 5: The stitching on the wrong side of the
fabric is loose or has slack.
Symptom 1
Symptom 3
1 Wrong side of fabric
2 Bobbin thread visible from right side of fabric
3 Upper thread
4 Right side of fabric
5 Bobbin thread
6 Upper thread visible from wrong side of fabric
■ Cause/remedy/check details
Cause 1
The machine is not correctly threaded.
<With symptoms 1 and 2 described above>
The bobbin threading is incorrect.
Return the upper thread tension to the standard setting,
and then refer to “Upper thread tightened up” on page A-5
to correct the threading.
<With symptoms 3 and 5 described above>
The upper threading is incorrect.
Return the upper thread tension to the standard setting,
and then refer to “Tangled thread on wrong side of fabric”
on page A-6 to correct the upper threading.
1
1