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14. Adjustment of the feed dog height
Requirement:
At the highest feed dog position, the tips of the feed dog teeth must protrude above the needle plate
surface by 0.9 mm (fig. 14).
Check:
● Remove the needle and the presser foot shoe.
● Select the largest stitch length.
● Turn the handwheel until the feed dog is at its highest position.
● Place bridge gauge (01-066141-00) over the feed dog on the needle plate (fig. 14).
● Carry out a visual check.
The feed dog must not touch the gauge, but must clear it by 0.1 mm.
Adjustment:
● Open the free-arm cover.
● Loosen screw 51 with a 2.0 mm Allen key (fig. 14a).
● Turn the setting eccentric 50 until the feed dog is at the correct height.
● Tighten screw 51.
Test:
● Turn the handwheel and check height of feed dog in its highest position again.
Note:
● Check the feed lifting and driving eccentric movements again (point 12 and 13 of this manual).
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