17. Assemble the harmonic drive gearing unit with the 

 motor unit. Make sure that the motor armature 

 does not move out of the motor field. 



18. Secure the field with the four countersunk screws. 



19. Get one screw out, put Loctite 290 adhesive/ 

 sealant on the thread and tighten the screw care- 

 fully. Then proceed until all four screws are 

 locked. 



39 



