6-11. Lower shaft mechanism; 6-11. Lower shaft mechanism ; 6. ASSEMBLY- Page 88

6. ASSEMBLY

BAS-311G, BAS-326G

81

6-11. Lower shaft mechanism 

5. Rock gear shaft 

(Insert from the rear of the machine head) 

6. Rock gear 

7. Set screw collar, B 

8. Set screws [2 pcs] 

9. Set screw collar, R 

10. Set screw (Temporarily tighten) 

11. Set screws [2 pcs] (Temporarily tighten) 

While turning the machine pulley, move the

rock gear back and forth to the position

where it turns smoothly. 

Place set screw collar R against the edge

of the bed and tighten the set screw. 

5145Q

1. Shuttle race base assy

2. Set screw 

3. Set screw 

4. Adjusting stud 

Tighten the set screw until the head of

the screw is flush with the edge of the

bed. (Refer to “7-8. Rotary hook

lubrication amount”.) 

5144Q

Adjust while referring to “7-19. Adjusting

the backlash of the lower shaft gear”.