7. ASSEMBLY
BAS-311H
56
Assemble each part order of the numbers.
7. ASSEMBLY
*
(number) indicates part names only. (They do not indicate the order of assembly.)
Apply greases to the required places when reassembling the parts and once every two years.
7-1. Upper shaft mechanism
Install the bobbin winder driving wheel
(3) so that it is in phase with the thread
take-up crank (5) and aligned with the
reference line on the upper shaft.
Apply adhesive
(
Threebond 1324N or similar
)
to the
outer circumference of joint assembly (12) bearing.
Securely tighten the set screws
(8), (11) and (13) so that they are
aligned with the screw stops on
the upper shaft (1) starting from
the set screws at the front in the
turning direction.
1) Securely tighten the screw (6) of the thread take-up crank
(5) so that it is aligned with the upper shaft hole.
2) While pressing the thread take-up crank (5) so that there is
no play in it, tighten the set screw (7).
Apply adhesive (Threebond 1401N or similar) to the thread
section of the screw (6).
1. Upper
shaft
2. Pulley
gear
R
3. Bobbin winder driving wheel
4. Stepping clamp cam assembly
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 assembly
13. Set screws [2 pcs.]
3369B
5204Q
Reference
line