JUKI AMS-221EN Series Engineer's Manual page 47

Adjustment Procedures
1. Loosen 2 each of the setscrews
2. Press the X feed stepping motor
reduce the backlash to zero.
3. Tighten the setscrews
Adjustment Procedures
1. Remove 4 setscrews
2. Confirm that distance is kept 40.7 to 40.8mm between the tip of the Y
drive bevel gear and the spigot joint of the Y feed stepping motor
.
If this distance is not secured, loosen 2 setscrews
drive bevel gear
bevel gear spacer
(The spacer thickness is 0.1mm. Usually, two pieces are used.)
(Caution) When tightening the setscrews
section of the shaft of the Y feed stepping motor
the position of the setscrew
the Y drive bevel gear
direction.
3. Install the Y feed stepping motor
4. Press the Y trailing gear
backlash to zero and tighten 2 setscrews
section of the Y drive shaft
and setscrews
in the direction of the arrow to
and setscrews .
and take out the Y feed stepping motor
and adjust the number of teeth of the Y drive
.
. At that time, confirm that
does not move in the axial
on the bed.
in the direction of the arrow to reduce the
. At that time, join the flat
with the position of the setscrew
.
.
to remove the Y
, try to join the flat
with
.
– 43 –
Results of Improper Adjustment
o If there is any backlash, needle
entry accuracy is lowered. This
can also be a cause of feed error.
o Too much pressing may result in
an increase in the feed load, thus
causing feed error.
Results of Improper Adjustment
o If there is any backlash, needle
entry accuracy is lowered. This
can also be a cause of feed error.
o Too much pressing may result in
an increase in the feed load, thus
causing feed error.