Upper Shaft Mechanism - Brother KE-430F Service Manual

10. ASSEMBLY

10-8. Upper shaft mechanism

Apply grease <GREASE BZL-300P> specified by Brother to the portions indicated by the white arrows.
* 17, 18 and 19 should be installed after carrying out the installations in "10-10. Lower shaft mechanism".
* Set screws marked with * in the illustration are on the screw stop side.
*
Refer to the next page for the points to note during reassembly.
1) Tighten the screw 5 of the thread take-up crank 4 so that it
is aligned with the hole in the upper shaft 1.
2) While pressing the thread take-up crank 4 so that there is
no play in it, tighten the two set screws 7.
Apply adhesive (Threebond 1401 or similar) to the thread
section of the screw 5.
・ D on next page
・ Be careful not to drop the
balancer 20.
1. Upper shaft
2. Crank rod base
3. Pulley gear R
4. Thread take-up crank
5. Screw
6. Set screw [Tighten]
7. Set screws [2 pcs: Tighten]
8. Set screws [2 pcs: Tighten]
9. Set screws [2 pcs: Tighten]
10. Joint assembly
90
B on next page
11. Set screws [2 pcs: Tighten]
12. Thread trimmer cam
13. Motor assembly
14. Bolts [4 pcs]
15. Set screws [2 pcs: Tighten]
16. Set screws [2 pcs: Tighten]
17. Crank rod washer
18. Bolt
19. Set screws [2 pcs: Tighten]
20. Balancer
KE-430F, BE-438F
・ A on next page
・ Adjust while referring
to "11-14. Adjusting
the thread trimmer
cam position".
Apply adhesive (Threebond
1324 or similar) to the outer
circumference of the joint
assembly bearing 10.
E on next page
21. Balancer plate
22. Bolts [2 pcs]
23. Rubber cap
24. Bobbin winder unite
25. Plain washers [2 pcs]
26. Screws [2 pcs]
(1) Eccentric wheel
(2) Rock gear shaft assembly
(Continued on next page.)
C on next page
2860B