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12. Differential Feed Ratio
The main and sub feed dogs should move uniformly
together when the stitch length dial is set at 3 and
differential feed dial at 1.0.
z
Remove the belt cover.
x
Set the stitch length dial at
3 and differential feed dial
at
1.0.
c
Turn the adjusting screw
q
to adjust the differential
feed ratio.
• If the sub-feed dog moves less than the main feed dog
does, turn the adjusting screw in the direction of
A.
• If the sub-feed dog moves more than the main feed
dog does, turn the adjusting screw in the direction of
B.
NOTE:
When the differential feed ratio is properly adjusted, the
feed link
w
sits horizontally.
v
Attach the belt cover.
q
w
B
A