Adjusting The Differential Feed Ratio; Longitudinal Position Of The Feed Dog - JUKI MO-6000S series Engineer's Manual

(13) Adjusting the differential feed ratio

MO-6000S, R Serise
3 2
Center
of nut
Lower
marker
line
4
(Standard)
Gathering: 1: 2
Stretching: 1: 0.7
MO-6900G, J Serise
2
3
Center of nut
Halfway
between
upper
marker line
4
and lower
marker line
(MO6904G (J), MO6916G (J))
Gathering: 1: 1.75
Stretching: 1: 0.6

(14) Longitudinal position of the feed dog

When the feed pitch is maximized and the differential feed ratio is also maximized, the clearances of
the front and rear ends of the feed dog, and the throat plate should be spaced approximately 0.5 mm
respectively.
Standard Adjustment
Pin at its highest
position
(Max, stretching)
Gathering: 1:1.6
Stretching: 1:0.6
3
2
Center of nut
Slightly
lower than
lower
marker line 4
(MO-6914G (J))
Gathering: 1:2.0
Stretching: 1:0.7
26
Pin at its
Washer
lowest
position
(Max, gathering)
Gathering: 1: 4
Stretching: 1: 1.3
2
1
1