Speed Of " Needle Plate Up And Down - Duerkopp Adler 975-1-5 Service Instructions Manual

2.3.4 Speed of " Needle Plate Up and Down "

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2
3
The needle plate is brought into the upper or lower position by cylinder 3.
Caution Risk of Injury !
Conduct adjustment work and function testing only with greatest
possible caution.
" Needle plate up " speed
–
Set the throttle 1.
–
Conduct a function test.
Set the program switch to 44 and press the " STOP " key. The
sewing head is lowered and the needle plate and pressure foot
raised.
Press the " START " key.
With the " " key the sewing head, needle plate and pressure foot
can now be raised and lowered again as often as desired.
The needle plate should move up quickly, but not with a jerk.
If not, then the throttle 1 must be set again.
" Needle plate down " speed
–
Set the throttle 2.
–
Conduct a function test.
Set the program switch to 44 and press the " STOP " key. The
sewing head, the needle plate and the presser foot will be lowered.
Press the " START " key.
With the " " key the sewing head, needle plate and presser foot
can now be raised and lowered again as often as desired.
The needle plate should move down quickly, but not with a jerk.
If not, then the throttle 2 must be set again.
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