Atlanta Attachment Company 1392D, Technical Manual & Parts Lists

Page: 21 / 162

Technical Manual & Parts Lists
14
Fine tuning Eccentric Top
Center
 To check turn hand-wheel
between 345° and 15° . The dial
indicator needs to point at the
same number at 345° and 15°
 Change eccentric position
 Check the top center by moving
hand wheel between 345° and 15°
Adjust Pittman rod length.
 Loosen up the 2 nuts
 Turn the rod until you have the
right length.
 Tighten the 2 nuts
 Check the final length (570mm)
Adjust Pittman rod length (Needle bar).
 Do the same as the presser-foot
Pittman-rod with the Pitman-rod
for the needle bar
 Find “top dead center”
 Test “top dead center” with
turning hand-wheel from 245° up
to15°
 Length of Pitman-rod need to be
460mm
 Repeat this step on the other side
of the machine so the Pitman-rod
for the presser-foot and the needle
bar are the same on both side of
the machine