Service-Manual_artista_630_640_english_V4.01_032069_50_04.doc
51
5.15 artista 630 CB hook, synchronization, feed and needle drive
Standard:
Remove covers. Use pinning tool 030 349.70.00 to pin needle drive balance piece and tool 007 937.50.00 to pin
base shaft. The hook drive crank must be able to be pinned in this position.
1
st
correction:
Pinning positions of base shaft and hook drive crank
•
Remove the pin from the needle drive piece
•
Remove
screw
(
49a
).
•
Loosen
screw
(
49
).
•
Swing ball bearing plate(
48
) down and remove
ball.
•
Pull out the drive gear (
shaft 48b
) so far as to
be out of mesh.
•
Pin hook drive crank.
•
Push the drive gear (base shaft) back into mesh
in such a way that the shaft can be pinned.
•
Important: Cylinder flute (edge) must face front.
•
Refit ball bearing (
48
) and screw (
49a
). Use
screw (
49
) to adjust a springing movement of
0.1-0.3mm.
Important! Turn the hand wheel 1 revolution
and test in 4 different positions.
Note:
Drive gear and lift/advance eccentric are pressed
onto the base shaft.
Base shaft pinning
position. Pinning gauge
007 937.50.00
Cylinder flute
must face front.
Needle drive balance piece
pinning position. It
must be
against the frame.
Attention: New gauge
030 430.51.00
Hook drive crank
pinning position
49a
48
48b
49
Into needle drive
balance piece
a-630
