30. Put the key into the keyway of the 

 shaft. 



31 . Put some oil (see 27' 

 face of the shaft. 



on the sur- 



32. Put the short end of the shaft 



into the assembly. Make sure that 

 now (and later) the motor armature 

 does not move out of the motor 

 field. This would destroy the 

 brush springs of the brushring! 



62 



