Adjusting The Leaf Springs; Relationship Between Lower Knives, Needle Threads And Looper Threads - KANSAI SPECIAL DX Series Instruction Manual

4 4 4 4 - - - - 8 Adjusting the leaf springs

8 Adjusting the leaf springs 8 Adjusting the leaf springs 8 Adjusting the leaf springs
Loosen screws D and remove lower knives E.
The left-to-right position of leaf springs K varies
according the gauge.
referring to the illustration and the table below.
Align positions L on leaf springs K with positions I
on upper knife H. Tighten screws M.
After this adjustment has been made, replace lower
knives E (see 4-7).
Gauge
4.8-10-10-10
5.0-13-13-13
9.5-9.5-9.5
8.5-8.5-8.5
6.4-6.4-6.4

4 4 4 4 - - - - 9 Relationship between lower knives, needle threads and looper threads

9 Relationship between lower knives, needle threads and looper threads
9 Relationship between lower knives, needle threads and looper threads 9 Relationship between lower knives, needle threads and looper threads
After all the adjustments have been completed, confirm the following to thread and start
the machine.
■ L ower knife E should enter the needle thread loop(s).
Looper thread cutting edge Y should travel in front of the loop thread.
■ W hen lower knife E returns home, the needle and looper threads are hooked by their
cutting edges F and Y and pulled to the right. Then they are trimmed by the upper
knife.
Adjust this position by
Distance A
3.4mm
4.1mm
3.3mm
3.0mm
3.0mm
4