Adjusting The Amount Of The Alternating Vertical Movement Of The Walking Foot And The Presser Foot; Sewing Speed Table - JUKI LU-2810 Instruction Manual

24. ADJUSTING THE AMOUNT OF THE ALTERNATING VERTICAL
MOVEMENT OF THE WALKING FOOT AND THE PRESSER FOOT
❶

25. SEWING SPEED TABLE

Operate the sewing machine at a speed equal to or lower than the maximum sewing speed selected from
those shown in the table below according to the sewing conditions.
For the LU-2810-7 and -2860-7, the sewing speed is automatically set according to the amount of the alter-
nating vertical movement of the walking foot and the presser foot.
In the case the stitch length exceeds 7 mm, change the maximum sewing speed referring to "6. Function set-
ting of SC-922" in the Instruction Manual for the SC-922.
Amount of alternate vertical movement
of the walking foot and presser foot
Less than 3 mm
3.25 mm to less than 4 mm
4.25 mm to less than 5 mm
5.25 mm to less than 9 mm
❸
❷
Stitch length : 7 mm or less
3,000 sti/min
2,400 sti/min
2,000 sti/min
1,800 sti/min
* For the LU-2860 and -2860-7, the maximum sewing speed is 2,700 sti/min.
Adjust the amount of the alternating vertical move-
ment of the walking foot and the presser foot us-
ing dial ❶ . Turn the dial clockwise to increase the
amount of the alternating vertical movement of the
walking foot and the presser foot, or counterclock-
wise to decrease it.
For the standard gauge type machine, the amount of
the alternating vertical movement of the walking foot
and the presser foot has been factory-adjusted to 6.5
mm at the time of shipment.
To cancel the restriction to the amount of the alter-
nating vertical movement of the walking foot and the
presser foot, remove the top cover, loosen setscrews
❷ and shift stopper ❸ to the right.
To release the stopper by means of the
standard gauge, the presser foot may inter-
fere with the walking foot. The presser foot
may also interfere with the needle bar when
a heavy-weight material is used.
Make sure that the presser foot interferes
with neither the walking foot nor the presser
bar before operating the sewing machine.
Stitch length : More than 7
mm and 9 mm or less
* 2,000 sti/min
2,000 sti/min
2,000 sti/min
1,800 sti/min
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