Basic Presser Foot Lifter Setting (Free Hand System (Fhs)) - Fritz Gegauf Bernina artista 630 Service Manual

5.25 Basic presser foot lifter setting (Free Hand System (FHS))

Standard:
•
The end of the knee-activated lifter lever should
be approx. 160mm / 6inch from the needle centre
position (horizontally).
Correction:
•
Fit lifter lever into bore (110).
•
Loosen screw (109).
•
Position knee-lifter lever in the
appropriate place.
•
Retighten screw (109).
Checking correct position:
•
Place presser foot lifter lever up.
•
Set upper thread tension to 10.
•
Model 640 manually rotate the top tension stepping motor cam counter clock wise to the highest setting.
•
When the lifter is actuated, the presser foot lifter lever must drop.
Correcting the position:
•
Loosen screw (111) and turn adjustment eccenter (112) until the lifter lever releases (drops).
•
Retighten screw (111).
•
Check tension release mechanism. Correct if necessary (release lever must be free).
Service-Manual_artista_630_640_english_V4.01_032069_50_04.doc
109
110
111
112
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