[Response to problems occurring at the beginning of sewing]
• In the case needle thread breakage occurs when using a thin thread or fragile thread
• In the case needle thread is not tucked on the wrong side of material
• In the case needle thread breakage occurs when starting sewing from the material end (such as sewing
the material with needle thread tucked on the undersurface of material)
1. The amount of uplift of the presser foot above the throat plate varies according to the ma-
terial thickness of the item to be sewn and the presser foot pressure. Be sure to check the
actual condition before starting sewing.
2. If the adjustment is increased while the presser foot presser is high, the operating noise
will become larger. Adjust the adjustment value and the presser foot pressure while visually
checking the needle thread condition.
No. Description Setting range Default
P161
ON / OFF of the presser lifting operation when clamping the thread is set with the
function setting item.
0: OFF
1: ON
0-1 0
P162
Degree of an angle at which the presser foot starts going up when clamping the
thread
Degree of an angle at which the presser foot starts going up when clamping the
thread is set with function setting item.
0-359 100
P164
Setting of the amount of lift of the presser foot when clamping the thread
The amount of lift of the presser foot when clamping the thread is set with this
function setting item.
0-500 50
P165
Time during which the presser foot goes up when clamping the thread
The time during which the presser foot goes up when clamping the thread is set
with this function setting item.
1-990 20
If any of the aforementioned problems occurs, the presser foot pressure should be reduced to allow the nee-
dle thread pinched between the presser foot and the material to be released smoothly.
(The recommended presser foot pressure is 30 N (3 kg) or less.)
Adjust the presser foot pressure and the sewing speed appropriately to prevent insucient feed eciency
due to jumping or other faults of the presser foot. After the adjustment, conrm the adjustment result by actu-
ally sewing the material.
Needle thread breakage can be reduced and the needle thread can be smoothly tucked in to the undersur-
face of material by lifting the presser foot by a minute amount at the beginning of sewing.
(Set the parameter P161 to 1, and adjust the parameters P162, P164 and P165.)
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