JUKI AMB-289 Engineer's Manual page 39

Adjustment Procedures
4) Adjusting the top feed sensor in the vertical direction
1. Set the button gauge supplied with the chuck as
accessories.
2. Display K57 of level 2 of the memory switch. (At this time,
set the parameter display to "0".)
3. Move the position of sensor
chuck 6 is as high as the upper part of tongue stopper
when depressing the pedal once and performing the origin
retrieval.
4. To change the position of sensor, loosen setscrews
move sensor 2 along the slit, and fix setscrews
5. Compensation of the position of top feed origin
™ After performing the adjustment of sensor, when the
tongue stopper in terms of the needle is out of the
position, compensation of the position can be oerformed
by changing the parameter of K57.
5) Adjusting the sensor of loader
1. Display K57 of level 2 of the memory switch. (At this time,
set the parameter display to "0".)
2. Move the position of sensor
the center of needle to the front edge of button set pin
29.5 mm when depressing the pedal once and performing
the origin retrieval.
3. To change the position of sensore, loosen setscrew
move sensor 4 along the slit, and fix setscrew
4. After performing the adjustment of sensor, when the tongue
stopper in terms of the needle is out of the position,
compensation of the position can be performed by changing
the parameter of K59.
6) Adjusting the thread drawing motor sensor
1. Fix the position of sensor with setscrews
symmetrically set from the center of the slit.
2. Display K58 of level 2 of the memory switch.
3. Adjust the parameter of K58 so that thread
touches the upper side of the thread
(thread guide No. 2 !0 ) .
2 so that the bottom face of
1.
4 so that the distance from
3.
5 which are
9 lightly
9 drawing hole
− 35 −
Results of improper Adjustment
7
1,
8 is
3,