Part 2: Maintenance 6. Replacing the Reduction Gear Units
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(11) Using a hexagon head wrench in the screw holes of the waveform generator, remove
the two flat point setscrews (M4×6 for ES series; M5×6 for the EL series). Remove
the waveform generator from the motor. One of the setscrew holes has a brass bush
inside which must be paid attention so as not to be lost.
Bush
M4×6
Waveform generator
Motor flange
Bush
ES EL
M5×6