Removal And Check Of The Needle Thread Scissors - DURKOPP ADLER 540 - 100 Operating Instructions Manual

11.2 Removal and check of the needle thread scissors

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1
2
Standard:
Before mounting and adjusting the needle thread scissors the following
has to be observed:
–
The edges of the thread clamping plate have to be rounded and
highly polished
.
–
The thread has first to be clamped and then cut by the movable
part of the scissors.
–
The thread clamping plate must rest on the clamping surface in
parallel position because otherwise no perfect clamping is
guaranteed when sewing.
–
The clamping force of the thread clamping plate must be sufficient
to hold the thread safely.
–
The cutting edges of both scissors parts must be sharp enough to
cut the thread accurately.
Dismount, check and mount the scissors:
–
Switch the main switch off.
–
Unhook the spring 1
–
Loosen the locking pin 2 .
–
Pull out the axle 3 and remove the needle thread scissors.
–
Dismount the needle thread scissors and check according to the
instructions.
–
Mount the needle thread scissors and make a cutting test.
–
Reinsert the needle thread scissors and fix it with the axle 3.
–
Put the spring 1 in.
–
Tighten the threaded pin 2.
Basic setting:
–
The settings of the needle thread scissors have to be carried out in
the above- mentioned order.
.
4
3