Setting The Mechanical Origin - JUKI PS-800SB-2850 Instruction Manual

4-12. Setting the mechanical origin

1) Loosen screw ❶ of the coupling on the main shaft
❶ ❶
side.
2) Turn the main shaft until the needle bar is brought
to its upper dead point.
3) Adjust the QEP value to 0 ± 5 when the needle
bar is brought to its upper dead point by turning
the pulley.
4) Tighten screw ❶ .
5) Now the origin adjustment is completed. Turn the
pulley again to check the QEP value. If the QEP
value is 0 ± 0.5 when the needle rests at its upper
dead point, there is no problem with the origin
adjustment.
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