JUKI LZ-2290A-SS-7 Engineer's Manual page 9

Caution in disassembling
™ When removing/installing the motor, unless the motor is
defective, loosen coupling setscrew 8 without loosening
coupling setscrews 6 and remove the motor with the coupling
installed.
™ When the motor is separated
6 8
™ For re-assembling the stepping
57
− −
Caution in assembling
from the coupling, set the
clearance between the end face
of the motor and that of the
coupling to 0.5 mm when re-
assembling.
m o t o r u n i t , r e f e r t o 3 - 2 )
Adjusting the feed timing.
0.5 mm