Brother CB3-B917 Service Manual page 37

4. REPLACEMENT OF PARTS
1 mm
1 mm
417s
0.5 mm
418s
31
416s
419s
CB3-B916A/B917A
10. Tighten the button clamp driving lever
that the clearance between the button clamp driving fork
and the driving link
and the vertical feed cam
11. Loosen the screw and adjust the button clamp driving
lever .
12. Raise the sewing machine.
13. Fit the number of stitches adjustment cam
shaft .
14. Temporarily tighten the thread trimming lever
clutch shaft .
15. Adjust the number of stitches adjustment cam
there is a clearance of 0.5 mm between it and the pawl
.
16. Attach the spring .
17. Fit the connecting rod
and then fit the snap ring
temporarily so
, and between the driving link
, is 1 mm.
to the cam
to the
so that
to the connecting rod shaft
.
,