JUKI AMB-289, Engineer'S Manual

Page: 27 / 177

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1. Lower the tongue section, and tighten cylinder nut at the position
where side face plates on both sides ride on rollers and rollers
turn when tongue section is moved to and fro.
2. Loosen stopper setscrew and adjust so that the clearance be-
tween the top surfacre of throat plate and tongue stopper is 14
±
0.5 mm with the tongue section raised. Insert the gauge between the
throat plate and tongue stopper
, and perform adjustment as shown
in the figure since dimension A of the gauge supplied as accessories
is 14 mm.
3. Loosen sensor setscrew located on the side of cylinder, adjust the
sensor to the position where it goes off and lights, and further moves
by 0.5 to 1 mm, and tighten the setscrew. In the figure, adjust upper
sensor
at the time of going up and lower sensor at the time of
coming down respectively.
4. Supply air and adjust with the speed controller so that the motion is
not shocked largely at the time of going up or coming down.
5. There is adjustment screw of air damper on the side of this cylin-
der, and adjust it when there is a shock in motion even when adjust-
ment is performed with speed controller.
6. Adjust the installing dimension of upper sensor of tongue up/down
cylinder to 5 mm from the edge of cylinder.
(Reference dimension)
7. Adjust the installing dimension of lower sensor of tongue up/down
cylinder to 19 mm from the edge of cylinder.
(Reference dimension)
o Button size is set up to 32 mm,
and when using small sized
buttons only, influence of needle
bend is lessened by lowering this
height.
o When the position is improper,
error occurs.
o Do not adjust except when the
motion is shocked largely since
adjustment has been performed
at the time of delivery.
o Do not adjust except when the
motion is shocked largely or the
c y l i n d e r i s r e p l a c e d s i n c e
adjustment has been performed
at the time of delivery.
Adjustment Procedure Results of Improper Adjustment