4. ASSEMBLY

KE-484C

Make a gap of 3 mm between the thread trimmer cam and U-timing pulley F.

Align the ridge line at the back of the groove in the upper shaft with the edge of the thread trimmer cam.

Apply adhesive (Threebond

3384Q 1401 or similar) to the outside of the bearing.

Apply grease.

Apply grease.

Upper shaft bush

Place the thread take-up crank onto the upper shaft from the face plate end, tighten the screw into the hole in the upper shaft, and then tighten the set screw.

3385Q

Place the thread take-up crank, thrust washer and bobbin winder pulley into the upper shaft bush so that there is no play in the parts, and then tighten the set screw at the screw stop position.

1. Upper shaft

11.

Set screws [2 pcs]

2. Thread trimmer cam

12.

Set screws [2 pcs]

3. U-timing pulley, F

13.

Tension pulley arm

4. U-timing belt, F

14.

Adjusting screw

5. Bobbin winder pulley

15.

Nut

6. Thrust washer

16.

Adjusting screw

7. Thread take-up crank

17.

Nut

8. Screw

18.

Plain washer

9. Set screw

19.

Nut

10. Set screws [2 pcs]

 

 

77

KE-430B, 430C series