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11. ADJUSTMENT
109
KE-430F, BE-438F
11-7. Adjusting the thread trimming
1. Remove the top cover, side cover and rear cover.
2. Turn the pulley in the direction of the arrow to move the needle bar to its lowest position.
3. Loosen the three bolts (1), and then set the clearance (section A) between the rubber and the plunger to 0.65 mm. While
holding them in this position, move the thread trimmer solenoid assembly (2) back and forth.
4. Set the thread trimmer collar (3) so that it is touching against the outside of the thread trimmer cam (4), and then while
pushing the thread trimmer solenoid assembly (2) down, tighten the three bolts (1).
5. Install the top cover, side cover and rear cover.
* Set so that the clearance (section A) is 0 mm, and then check that there is a clearance of 0.1 to 0.3 mm between the thread
trimmer collar (3) and the outside of the thread trimmer cam (4) (section B).
2730B
A
Push
down
2957B
A
B