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5. ADJUSTMENT
５-２１. Adjusting the backlash
1. Loosen the set screw (1), and move the rock gear (2) to the left and right so that the pulley can rotate easily.
2. Turn the rock gear shaft (3) to adjust the play at the end of the driver (4) to 0.05 – 0.12 mm, and tighten the set
screw (1).
<KE-484C>
Tip of the
rotary hook
3479
Q3478Q
3477Q3476Q
1.
Loosen the set screw (1), and move the lower shaft timing pulley (2) to the left and right so that the pulley can
rotate easily.
2. Turn the lower shaft (3) and adjust the play in the rotary hook tip to 0.05–0.12 mm, and then tighten the set
screw (1).
KE-430B, 430C series
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