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7. Setting the differential feed
Requirement:
Both feed dogs must have the same length of feeding movement, when the stitch length is set at “4” and
the differential setting at “1” (fig. 11).
Check:
● Set the stitch length adjustment knob to “4”.
● Set the regulator wheel for the differential feed to “1”.
● Turn the handwheel in the normal direction and check that both feed dogs have the same length of
feeding movement.
Setting:
● Slightly loosen fastening screw 14.
● Adjust the degree of the rod 15, until both feed dogs move with the same clearance.
● Repeat this procedure until the setting is correct.
● Tighten the fastening screw 14.
Test:
● As described under “Requirement”.
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