23
16) Adjusting for thread trimmer
⑴ Adjusting the trimmer driving part
Fixing the position of trimming cam
Turn the pulley using a hand to place the needle
bar ① at its lowest position.
With the left side of the trimming cam ② softly
attached to the right side of the lower shaft
medium bushing ③, turn the cam to align the
base point ④ with the carved sign ⑤ in the lower
shaft medium bushing crank.
Fasten tightly 3 trimming cam fixing crews ⑥.
Now, turn the pulley using a hand to see whether
or not the machine turns smoothly.
Adjusting the trimmer link stopper (See Figure 41.)
Once the necessary trimming for trimming cam lead is finished, make sure to turn the machine pulley to place the
trimming cam ③ in the right position, so that the roller① can enter the complementary straight line range ②.
Press down the trimmer shake linkage ④ to make the roller ① come inside the trimming cam ③,
※ Adhere the stopper adjusting body ⑨ with the left equal point of trimmer shake linkage ⑥ to make the left equal
point of the roller ① adhere smoothly ⑤ to the left inside of the cam’s complementary straight line ②, and the
right equal point of the trimmer shake linkage ⑥ adhere ⑧ smoothly to the inside of the stopper ⑦. Once this is
done, tightly fasten 2 fixing screws ⑩.
※ Once such adjustments are made, the trimmer shake linkage ⑥ will not move even when shaken to its sides (the
roller is inside the cam). Make sure to check if the trimmer shake linkage ⑥ returns to its original position
quickly and smoothly when released. If not, proceed with horizontal adjustment of stopper ⑦ and the stopper
adjusting body ⑨.
Check to see whether the trimmer shake linkage ⑥ and the stopper adjusting body ⑨ move lightly horizontally
when the trimmer is moved manually.
[Figure 40]
[Figure 41]
(complementary straight line)
trimming finishing point
movable knife operation
starting point
[Trimming cam lead]
To Next Page
Loading...
