Adjusting The Origin Of The Needle Rocking Motor - JUKI LZ-2290 Series Manual Manual

(6) Adjusting the origin of the needle rocking motor

™ Adjustment of the origin is performed when the needle rocking amount in terms of the center is not
equal, or the motor or the sensor is required to be replaced.
1)
3 )
4)
Origin sensor
(asm.)
5
Standard Adjustment
1
Needle rocking
motor cover
1
Sensor
installing base
8
90˚
7
2), 5)
6
2
<Condition of the origin "0">
When the link is at 90˚, move the light-up sensor
from the rightend to the left. The position of the
origin "0" is when the sensor gose out.
6)
9
Assemble link 9 and motor shaft
so as to be flush with each other.
Motor
90˚
Positioning jig
12
3
6
Needle rocking
unit base
4