4. ASSEMBLY

４-８. Upper shaft mechanism

<KE-435B, 435C> <KE-436B, 436C>

Rotation direction

Push the thread trimmer cam onto the upper shaft crank, align the forward set screw in the rotation direction with the screw stop position, and tighten the set screw at that position.

3380Q

Apply grease.

Apply grease.

 

Apply grease.

 

 

 

Upper shaft bush

Apply adhesive (Threebond 1401 or similar) to the outside of the bearing.

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.

Place the thread take-up crank, thrust washer and bobbin winder pulley (stepping foot connecting rod) 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.

3381Q

3382Q

Make a gap of 1.0 mm between the magnet of timing pulley assembly U and the synchronizer assembly, and then align the rear set screw in the rotation direction of timing pulley assembly U with the screw stop position and tighten the set screw at that position.

Rotation direction

3383Q

1.Upper shaft

2.Thread trimmer cam

3.Bobbin winder pulley <3> Stepping foot

connecting rod

4.Thrust washer

5.Thread take-up crank

6.Screw

7.Set screw

8.Set screws [2 pcs] <8> Set screws [2 pcs]

9.Set screws [2 pcs

10.Synchronizer assy

11.Screws [2 pcs]

12.Timing pulley assy, U

13.Set screws [2 pcs]

KE-430B, 430C series

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