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6. ASSEMBLY
BAS-311G, BAS-326G
75
6-8. Upper shaft mechanism
1. Upper shaft
2. Pulley gear R
3. Bobbin winder driving wheel
4. Stepping clamp cam assy
5. Thread take-up crank
6. Screw
7. Set screw
8. Set screws [2 pcs]
9. Set screws [2 pcs]
10. Rubber cap
11. Set screws [2 pcs]
12. Joint assy
13. Set screws [2 pcs]
5140Q
A
pply adhesive (Threebond 1324 or similar) to the
outside of the bearing of joint assy.
1） Tighten the screw of the thread take-up crank so tha
t
it is aligned with the upper shaft hole.
2） While pressing the thread take-up crank so that there
is no play in it, tighten the two set screws (8).
A
pply adhesive (Threebond 1401 or similar) to the thread
section of the screw.
Install the bobbin winder driving
wheel so that it is in phase with the
thread take-up crank and aligned
with the reference line on the uppe
r
shaft.
5204Q
Reference line