Caution, When tension is applied to the bobbin thread – Baby Lock Spirit (BLPY) Instruction and Reference Guide User Manual
Page 156
 
PREPARING FOR BOBBIN WORK
E-90
l
Using scissors carefully trim the thread tail 
as close to the bobbin as possible.
a Beginning of wound thread
m
Install the bobbin wound with thread.
Whether or not tension should be applied to the
bobbin thread depends on the type of thread being
used.
■ When tension is applied to the
bobbin thread
Insert bobbin into bobbin case so the thread
unwinds from the left side.
Then correctly pass the thread through the tension
spring as shown below.
a Tension spring
CAUTION
• Use a bobbin thread that has been correctly
wound. Otherwise, the needle may break or 
the thread tension will be incorrect.
• The included bobbin was designed specifically
for this machine. If bobbins from other models 
are used, the machine will not operate 
correctly. Use only the included bobbin or 
bobbins of the same type (part code: 
X52800-150).
* Actual size
a This model
b Other models
c 11.5 mm (approx. 7/16 inch)
Note
• Slowly and evenly wind the thread around
the bobbin.
• For best results, wind the bobbin so the
thread is snug and not twisted.
CAUTION
• If thread extends beyond the top of the bobbin
too much, the thread may become tangled or 
the needle may break.
Memo
• If inserting thread tail through bobbin hole is
difficult, bobbin can be wound by holding 
the tail and wrapping thread around inside 
base. Then carefully trim thread tail so it 
does not extend from the side of the 
bobbin.
CAUTION
• When winding the bobbin, make sure the
thread is not frayed. Embroidering with frayed 
thread may result in the thread catching on 
the tension spring of the bobbin case, the 
thread completely becoming tangled or 
damage to the machine.
• Do not guide the bobbin thread completely
through the groove in the needle plate cover, 
otherwise the lower threading cannot be done 
correctly. Thread only as far as shown below.