– 26 –
No.
Item name
Description
9
SARA UKASHI
(Tension release)
Bring the disks to the floating condition.
Operate the "OK" switch, and the disks will float.
10
STRAIGHT 500STI/MIN
The maximum sewing speed is 500 sti/min (SPM) when the straight
stitch pattern is selected.
11
LCD FLASH TEST
Indications on the LCD can be checked.
Every time the "OK" switch is pressed, the LCD lights up entirely and
goes out entirely.
12
Reserved
13
Reserved
14
FEED PULSE TEST
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 "feed amount
adjusting" dial or button.
The straight stitch pattern can be sewn with the feed amount determined
by the adjusted number of pulses.
15
FEED PULSE TEST2
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 "feed amount
adjusting" dial or button.
The zigzag stitch pattern can be sewn with the feed amount determined
by the adjusted number of pulses.
16
BH UPPER LIMIT
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 "feed amount adjusting" dial or button.
The adjustable range of scaling factor is [.00 to .80].
(Default is .40. Adjustment is made in increments of 0.05.)
17
WIND PWM
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 [5.0 to 79.].
（
Default is 54.0. Adjustment is made in increments of 0.5. Note that the
indication is given in increments of 0, .
18
WIND PWR UP LIMIT
The bobbin winder is provided with the function that winds thread with
increased power. This function is used when winding thick thread or an
increase in torque is required. The threshold value for the increase in
power is set using this item of the service mode.
The adjustable range of the threshold value is [20 to 60].
(Default is 40. Adjustment is made in increments of .)
19
Reserved
Summary of Contents for HZL-F series
Page 1: ...SERVICE Manual HZL F Series COMPUTER SEWING MACHINE ...
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