JUKI AMB-289, Engineer'S Manual

Page: 71 / 177

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Removing the loader motor
1. Draw out the connectors of loader motor
and loader sensor
from the relay cable connector.
2. Loosen two loader installing screws , and remove the loader.
3. Loosen four loader motor setscrews , and remove loader motor
.
Assembling the loader motor
1. Insert loader motor
to which gear A has been attached before-
hand to loader base so that the cord comes upward.
2. Adjust the backlash (refer to adjusting procedure below.), and fix the
motor with loader motor setscrews .
3. Insert the connectors of loader motor and loader sensor to the
relay cable connector.
4. Slip the loader to the frame, press top end of loader base to the
processed plane of frame, and press front end to the hinge screw.
Then fix the loader with loader installing screws .
Adjusting the backlash of loader gear
1. Loosen loader motor setscrews
.
2. Adjusting the center of gear A to that of gear B , press gear A
to gear B (direction of arrow mark), and make carrier arm A and
carrier arm B smoothly move on condition that the backlash is
less than 0.1 mm. Then tighten loader motor setscrews .
o When the gear is excessively
pressed in the direction of arrow
mark, a load is applied to the
motor, and step-out will be
caused, or the button may come
off from the pin during carrying
since the carrier arm does not
smoothly move.
o When backlash is more than 0.1
mm, the trouble of delivery of
button to chuck will be caused
Procedures of disassembling / assembling Caution in disassembling / assembling