JUKI HZL-X Series Service Manual page 40

No. Item name
8 THREAD TRIM CHECK
SARA UKASHI
9
(Tension release)
10 STRAIGHT 500STI/MIN
11 LCD FLASH TEST
THREAD CATCH ADJ
12 (For adjusting the thread
trimming mechanism base)
13 Reserved
14 FEED PULSE TEST1
15 FEED PULSE TEST2
16 BH UPPER LIMIT
17 WIND PWM
Thread trimming condition can be checked.
Perform thread trimming halfway by using the "OK" button.
From this condition, manually turn the main shaft to carry out the thread trim-
ming sequence in order.
Bring the disks to the floating condition.
Operate the "OK" button, and the disks will float.
The maximum sewing speed is 500 sti/min (SPM) when the straight stitch
pattern is selected.
Indications on the LCD can be checked.
Every time the "OK" button is pressed, the LCD lights up entirely and goes out
entirely.
Press the "OK" button to carry out thread trimming partway.
When the thread trimming operation stops, check the lateral position of the
thread trimming mechanism base.
A straight line can be sewn with the amount of feed determined by the number
of pulses.
The straight stitch is selected as the sewing pattern.
The number of pulses of feed can be adjusted using the "stitch length adjust-
ing" dial or button.
The straight stitch pattern can be sewn with the feed amount determined by
the adjusted number of pulses.
Zigzag stitch can be sewn with the amount of feed determined by the number
of pulses.
The zigzag stitch is selected as the sewing pattern.
The number of pulses of feed can be adjusted using the "stitch length adjust-
ing" dial or button.
The zigzag stitch pattern can be sewn with the feed amount determined by the
adjusted number of pulses.
The upper limit of the scaling factor employed at the feedback operation (the
operation for sewing the buttonhole of the same size again) is adjusted.
The upper limit of the scaling factor employed at feedback operation can be
changed with the "stitch length adjusting" dial or button.
The adjustable range of scaling factor is [1.00 to 1.80].
(Default is 1.40. Adjustment is made in increments of 0.05.)
Output value of PWM for the bobbin winder is set.
The PWM output value can be adjusted using the "zigzag width adjusting" dial
or button.
It is possible to make adjustment while rotating the bobbin winder under the
service mode.
The adjustable range of PWM output value is [15.0 to 79.1].
(Default is 54.0. Adjustment is made in increments of 0.5. Note that the indica-
tion is given in increments of 0, 1.
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Description