Feed-Dog Height - Fritz Gegauf Bernina artista 630 Service Manual

5.22 Feed-dog height

Standard:
•
In the feed-dog's highest position, the peaks of the
feed-dog teeth must be at least 0.05 mm higher at
the front than at the back.
•
Feed-dog height (0.9-1.0mm).
Example:
•
front 0.95 mm, back 0.90 mm
•
front 1.00 mm, back 0.90 mm
•
front 1.00 mm, back 0.95 mm
Correction of front feed-dog section
•
Loosen screw (95).
•
The pressure spring (96) causes the
adjustment plate (97) to move up
independently.
•
Position 1.0 mm gauge and press
down.
•
Retighten screw (95).
Important:
Check again after tightening the screw!
Correction of rear feed-dog section:
•
Slightly loosen screws (98). Use a
5.5 mm open-end wrench to turn the
eccentric pin (99) until it reaches
0.9 mm level.
•
Tighten screws (98).
Important:
Feed-dog carrier (100) must lie flush
against circlip on the right side.
Eccentricity must face outward! Face
inward would touch the Support sheet
(101).
98
100 101
Service-Manual_artista_630_640_english_V4.01_032069_50_04.doc
95
99
96
97
58