Garudan GPS/X-3525 Series, Руководство пользователя

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MP03200 EN_180810 21
8. Adjustment of speed of movement of the trimming lever:
Correct function of pneumatic cylinder of trimming is done by air pressure in value 0.55 - 0.6 MPa.
Regular length of bottom thread after trimming is 55mm.
The trimming is controlled by below parameters:
- Parameter 21 Decelerate stitches – it indicates the number of stitches b efore trimming.
Default value is 1 stitch.
- Parameter 22 Decelerate speed – speed of the motor b efore and during the trimming.
Default value is 130 rpm.
- Parameter 41 Turning ON feed dog (starting time of thread feeder) – it sets the position of
the needle hen the moving knifes is taking the needle. Default value if 500 ms.
- Parameter 42 turning OFF feed dog (operating time of thread feeder) – it sets the position of
needle bar hen the moving knife is cutting the thread. Default value is 80 ms.
The speed of movement of the rod is decisive for correct moment of taking the thread by moving
knife. It is usually adjusted with change of trimming speed, parameter 22. Short end of bottom
thread after trimming or cranking of bottom thread is done by high speed of movement of moving
knife. The thread is not taken by low speed of the knif e.
Increasing or decreasing of the speed of knife is done by the valve (1) on the pneumatic cylinder (2)
which is placed on the side of the base plate. The rod is connected with pneumatic cylinder by hinge
bearing (3), Fig. 28.
Fig. 28
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