Residual-Thread Monitor - DURKOPP ADLER 867 Instruction Manual

12. Optional equipment

12.1 Residual-thread monitor

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The residual-thread monitor 1 monitors the amount of thread in the
gripper spool An acoustic signal is sounded when only a small
amount of thread is left
The operative can finish the seam and fit a new spool
material damage and thus any need for repairs
The residual-thread monitor, can be fitted to all 1 and 2-needle 867
sewing machines with a thread cutter
Function and operation of the residual-thread monitor
If the light beam from the light barrier is reflected by the surface 3 of
the spool, sewing is interrupted
The corresponding LED display in the switch will blink
–
Release the pedal and then push it forwards again
The seam is continued
The amount of thread in the supply groove 2 of the gripper spool is
usually sufficient to complete it
–
At the end of the seam pull the pedal back
The thread is cut off
!
This avoids