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38
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Standard Adjustment
Results of lmproper Adjustment
4. Longitudinal position of the feed dog (condition : feed momentum
3.6 mm (maximum))
(1) When fixing setscrew
!9
in the main feed lever, adjust the clearance
from the edge of the slot of the throat plate to the front face of the
main feed dog to 0.6
±
0.2 mm when the feed dog travels to the
extreme front position (operator’s side), press the main feed lever
to the rocking bar side, and fix it with setscrew.
(2) When fixing setscrew
!8
in the differential feed lever, set the
differential feed ratio to 1 : 1, adjust the clearance provided between
the main feed dog and the differential feed dog to 1.6
±
0.2 mm,
press the differential feed lever to the rocing bar side, and fix it with
setscrew.
(Caution)
When the adjustment value changes greatly, feed dog or
throat plate will be broken.
™
When the fixing position of the
main feed lever slips greayly out
of position, abnormal noise or
abrasion will be caused.
™
When the fixing position of the
differential feed lever slips greatly
out of position, abnormal noise or
abrasion will be caused.