JUKI MF-7923 - Retarding the Feed Rocking Motion

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2) Shift the 1st pin to the right.
3) Bring the feed rocking eccentric cam into contact
with the positioning cam.
4) Tighten two setscrews of the feed rocking eccentric
cam.
5) To return the timing to the standard adjustment, re-
turn the 1st pin to its home position. Assemble the
feed rocking eccentric cam and the 1st pin so that
they come in contact with each other. (To obtain the
timing of the standard adjustment, the 1st pin should
be positioned at the leftmost end of the hole.)
* To prevent the setscrews from loosening, make sure
that the positioning cam comes in contact with the
feed rocking cam.
Note that, however, the 1st pin can move to the right
or left. It is therefore necessary to make sure that a
clearance is provided between feed rocking eccentric
cam and positioning cam before checking the timing.
The timing of feed rocking eccentric cam of the feed
mechanism can be retarded from the timing obtained
by the standard adjustment.
1) Loosen two setscrews of the feed rocking eccentric
cam.
Carry out the adjustment when the hole in the feed
rocking rod aligns with the screw of the feed rocking
eccentric cam.
(2) Changing the feed rocking motion
Positioning cam
2nd pin
1st pin
Feed rocking eccentric cam
Positioning cam
Contact