Setting the trimming and clamping device for the hook threads
Service Instructions 755 A/756 A - 00.0 - 02/2019 95
Fig. 100: Setting the height of the hook thread trimmer (2)
To set the height of the hook thread trimmer:
1. Insert the hex key (5) into the holder (2) next to the throat plate.
A cutout embedded in the throat plate guides the hex key.
2. Turn the screw (3) to change the height of the holder (2).
 Set the hook thread trimmer (1) to the same height as the upper side
of the throat plate.
13.3 Testing the hook thread trimmer
To test the hook thread trimmer:
1. Open the menu Service > Multi test > Multi test I/O
and select the output Y2 ( p. 405).
2. Press the OK button.
 The lower thread clamp opens.
(2) - Holder (5) - Hex key