Buttonhole Control - Pfaff performance 2054 Service Manual

Presser foot lift
The machine moves to the corresponding positions when the appropriate buttons are pressed:
•
Raised position
•
Middle position
•
Lowered position
•
Release lifter
•
Knee lift
The positions can be selected manually.
After pressing the knee lift button, the presser foot must follow the movement of the knee lift (visual check).
Please press now the relevant buttons:
either
or
plus
The current test can be interrupted with the „i" button.
If the „Full test" mode is activated, the next test will be automatically executed after acknowledgement of
the visual check.

59. Buttonhole control

The buttonhole gauge consists of a measuring rail and a dual-track forked light barrier.
The 90° out-of-phase signals generated when the measuring rail is moved are counted by the hardware, with
the total running up or down depending on the direction of movement.
The operator is requested to insert the measuring rail to the limit.
The measuring rail must be pulled out by pressing the „START" button.
The counter reading is displayed in the form of a number.
If a value of min. 110 is not reached, an error message will be issued.
An evaluation window
Press the button „i" =
The current test can be interrupted with the „i" button.
If the „Full test" mode is activated, the next test will be automatically executed after completion of the test.
106
[8 mm above needle plate]
The limit switch must be reached.
[5.3 mm above needle plate]
[Foot resting on needle plate]
[10,3 mm above needle plate]
The manual lifter must be released
[Presser foot follows the knee lift]
button „+" = OK (test was successful)
button „-" = ERROR
button „i" = End (end of test with possibility to go to the next test)
(OK or Error) is displayed after completion of the test.
End (end of test with possibility to go to the next test)
(test was not successful)