Position Of The Thread Take-Up Lever; Position Of The Frame Thread Eyelet; Thread Trimming (Mh-481-4, Mh-481-5, Mh-484-4, Mh-484-5) - JUKI MH-481 Manuel D'utilisation

24. POSITION OF THE THREAD TAKE-UP LEVER

WARNING :
To avoid possible personal injury due to abrupt start of the machine, turn off the power to the machine and check to be
sure that the motor has totally stopped rotating in prior.

25. POSITION OF THE FRAME THREAD EYELET

26. THREAD TRIMMING (MH-481-4, MH-481-5, MH-484-4, MH-484-5)

WARNING :
To avoid possible personal injury due to abrupt start of the machine, turn off the power to the machine and check to be
sure that the motor has totally stopped rotating in prior.
1. Moving knife mounting plate assembly
The preliminary test for thread trimming and thread clamping can be done independently on the moving knife
mounting plate assembly.
(After the following adjustments have been completed, hook the threads manually with the recessed part of the
moving knife, pull the moving knife into the counter knife to clamp the threads and the thread will be trimmed off.)
1
2
A
The thread tension changes by moving intermediate
thread guide 1 up and down.
The thread tension is increased by moving the intermediate
thread guide upward, or decreased by moving it downward.
In general, adjust the position of setscrew 2 referring
to the table below.
Thread used
#80 to #50
Cotton
thread
#30 to #20
#80 to #50
Synthetic
thread
#30 to #20
Dimensions of the counter knife
When sharpening the counter knife, correct it with the
part A so as to fi nish it in the size of 0.5±0.05 mm.
– 21 –
Scale on the intermediate thread guide
2 to 3
3 to 4
1 to 2
2 to 3