44. Turn the motor unit in its mid- 

 dle position (from the middle 

 position, the motor unit can 

 turn at least 120° in either 

 direction without overstressing 

 or overcompressing the coil on 

 the inner housing). Then turn 

 the shaft with a sharpened 

 wooden pencil until you can po- 

 sition the six socket-head 

 screws to fasten the circular 

 spline to the outer housing. 

 Make sure that the motor unit 

 stays in its middle position 

 while you are turning the shaft. 

 If the shaft does not turn 

 freely, or you hear a rabbling 

 noise while turning the shaft, 

 a problem exists. The brush 

 springs are probably destroyed 

 as a result of moving the motor 

 armature out of the motor field 

 during assembly steps 2 to 41 . 



45. Slip the spacer over the shaft. 



46. Press the angular contact ball 

 bearing (FAG no B.7000.E) into 

 the housing so that it can take 

 a thrust load sufficient to 

 push the bearing out. Make sure 

 not to transmit pressure or im- 

 pact through the rolling ele- 

 ments of the bearing while 

 pressing it in. 



47. Put a few drops of high-quality approved oil (see step 7) into the FAG 

 ball bearing. 



48. Place one finger spring washer (F1004-007, 0D 26.0 mm) on the ball bear- 

 ing (see section 48 of assembly procedure for motor unit I). 



49. Solder the wires onto the solder points of the potentiometer (see section 

 49 of assembly procedure for motor unit I). 



50. Bring the potentiometer to its middle position. That means turning the 

 shaft until you measure 5-kfi resistance between 1 and 2 or 2 and 3 on the 

 potentiometer. 



51. Assemble the potentiometer without turning the shaft, 

 seated correctly. ) 



'Be sure it is 



52. Place finger spring washer (Fl 830-016, 0D 47 mm) on the potentiometer 

 (see section 52 of assembly procedure for motor unit I). 



46 



