How To Use The Bobbin Thread Counter - JUKI IP-110 Instruction Manual

4-3. How to use the bobbin thread counter

The­machine­detects­the­number­of­stitches.­The­preset­value­on­the­bobbin­thread­counter­is­subtracted­in­
accordance­with­the­number­of­stitches­detected.­(Every­time­the­detector­detects­0­stitches,­­is­subtracted­
from­the­preset­value­on­the­bobbin­thread­counter.)­When­the­value­on­the­counter­becomes­a­minus­value­
as­ (­ ........ ­→­ ­ →­ 0­ →­ –),­ the­ buzzer­ (peeps­ three­ times)­ and­ the­ pop-up­ display­ inform­ that­ the­ time­ to­
change­the­bobbin­thread­has­come.
1
Initial value on the bobbin thread counter
for reference
*­Actually,­the­bobbin­thread­counter­is­affected­by­the­material­thickness­and­the­sewing­speed.­So,­adjust­
the­initial­value­of­the­bobbin­thread­counter­in­accordance­with­the­operating­conditions.
3) Once the initial value is specified, start the sewing machine.
4)­ When­ a­ minus­ value­ is­ shown­ on­ the­ counter,­ the­ buzzer­ peeps­ three­ times­ and­ the­ pop-up­ display­
appears,­replace­the­bobbin­thread.
Bobbin thread replacement warning pop-up
5)­ After­the­bobbin­thread­has­been­properly­replaced,­press­counter­reset­switch­ 2 ­to­return­the­value­on­
the­bobbin­thread­counter­to­the­initial­value.­Now,­re-start­the­sewing­machine.
6) If the remaining amount of bobbin thread is excessive or the bobbin thread runs out before the bobbin
thread­ counter­ indicates­ a­ minus­ value,­ adjust­ the­ initial­ value­ appropriately­ using­ counter­ value­ setting­
switches­ 3 ­and­ 4 .
If the remaining amount of bobbin thread is excessive ..... Increase the initial value using the "+"­switch.
If the remaining amount of bobbin thread is insufficient ....­Decrease­the­initial­value­using­"–"­switch.
If the bobbin thread counter is used in combination with the bobbin thread remaining amount
detecting device, the bobbin thread counter indicates the number of times of detection of the
bobbin thread remaining amount detecting device. So, be sure to use the device after carefully
reading the Instruction Manual for the bobbin thread remaining amount detecting device.
2 3
4
)­ Press­switch­ 1 ­to­select­the­bobbin­thread­counter.­
Then­ press­ counter­ reset­ switch­ 2 ­ to­ return­ the­
value­ indicated­ on­ the­ bobbin­ thread­ counter­ to­ the­
initial­value­(it­has­been­factory-set­to­"0"­at­the­time­
of­delivery).
The bobbin thread counter cannot be
reset during sewing. In this case, make
the thread trimmer actuate once.
2)­ Set­ an­ initial­ value­ using­ counter­ value­ setting­
switches­ 3 ­and­ 4 .
The­ table­ below­ gives­ the­ initial­ setting­ values­ for­
reference­when­the­bobbin­is­wound­with­thread­to­the­
extent that the pinhole in the outside of the bobbin case
is reached as shown in the figure on the left side.
Length­of­thread­
­used
Thread
wound­round­the­
bobbin
Polyester­spun­
thread­#50­
Cotton­thread­#50­
­ – ­7­–
Value­on­bobbin­
thread­counter­
200­
36­m
(stitch­length­:­3­mm)­
000­
3­m­
(stitch­length­:­3­mm)
Thread­tension­rate­00­%
­