JUKI MF-7700D Series Engineer's Manual page 65

E10/MD10
Adjustment Procedure Results of Improper Adjustment
For MF-7700D-E10
195° Present status (E10)
Position where the root of rod for looper front-rear motion almost
coincides with the center of first screw of the balancer when the rear
needle guard is in the most advanced position.
180° (E10)
Position where the oil hole of rear needle guard rod almost coincides
with the rear end of first screw of the balancer when the rear needle
guard is in the most advanced position.
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