Checking Stop Position Of The Sewing Machine (For Automatic Trimming Type); Reverse Button Function (For Automatic Trimming Type) - SunStar KM-560 User Manual

⑷ Lubrication check at hook
After 10-second operation of the machine, check the
amount of oil sprayed from the hook looks like the
picture in Figure 18. The amount of oil for the hook can
be adjusted by using the adjustment screw ① on the
hook base. The amount of oil supplied decreases when
the screw is turned clockwise, and increases when turned
counter-clockwise.
(see figure 18)
⑸ For test operation, run the machine for 10 minutes intermittently at about 1,500 SPM.
For the first 4~5 days of using the machine, operate the machine at less than 2,400 SPM per minute. Then, start using at
normal pace. This will help good performance of the machine along the way.
10) Checking stop position of the sewing
machine (for automatic trimming type)
After changing the up-down position of the needle by
pressing the reverse button, check the stop position of the
machine.
Check whether the thread take-up lever is in the highest
position when the needle is in up-stop position. When the
stop position is incorrect, there might be problems to the
trimming function, hence the photo film location of the
location detector must be corrected. That is, the needle up-
stop position is the same as the needle bar' s stop position
once the trimming action takes place. So there is no problem
with the timing of the trimming action. (See Figure 19)
(See 'location detector adjustment' on page 12)
11) Reverse button function
(for automatic trimming type)
If the reverse button ① is pressed while sewing forward,
reverse sewing takes place immediately. If the machine is
stopped first and the button is pressed before stepping the
pedal to start the machine, reverse sewing will take place
from the start. Also by pressing button while the machine is
in stop position, the high-low position of the needle bar can
be changed. If the button is pressed once when the needle
bar is in down-stop position, the needle bar changes to up-
stop position. Once again, if the button is pressed twice
consecutively within 1 second, the needle bar changes to
down-stop position.
That is, it has both the reverse sewing and needle up-down
position change functions. (See Figure 20)
14
The oil
sprayed
White paper
[Figure 18]
Thread take
up lever up-
stop position
Needle at its
up-stop position
[Figure 19]
[Figure 20]