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Adjusting accelerator control - AR30.10-P-1010HD

ENGINE 604.912, 605.912, 606.912 #2 in MODEL 210 with TRANSMISSION 722.4 

Fig 1: Identifying Accelerator Control Components
G04624500Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Fig 2: Identifying Throttle Stop
G04624501Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Fig 3: Identifying Vacuum Control Valve
G04624502Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
  Checking     
1 Check ease of operation and condition of accelerator control lever, linkage and bowden cable (32). Replace parts, if necessary.  
  Adjusting     
2 Wide open throttle 
Depress accelerator pedal (24) until it is touching the kickdown switch (S16/7).
IMPORTANTDo not operate kickdown switch (S16/7)!   
3 Turn adjusting screw (32/3) until relay lever (31/1) has reached wide open throttle stop (b).  IMPORTANT Do not over-tension bowden cable (32). Hand-Held Tester must indicate 100 %. See Diagnosis Manual Diesel Engine Volume 1.1 Index A2 - A4.  
4 Closed throttle position 
The relay lever (31/1) must be resting against closed throttle stop (a)  when no pressure is applied to the accelerator.
IMPORTANT Hand-Held Tester must indicate 0 %. See Diagnosis Manual Diesel Engine Volume 1.1 Index A2 - A4.
Turn adjusting nut (32/2) sufficiently until relay lever (31/1) is resting against closed throttle stop (a)  or until no further idle travel of accelerator exists.
 
5 Control pressure bowden cable 
Slacken bolt (35/2) at the intermediate lever (35/1).
   
6 Press relay lever (31/2) into closed throttle position.    
7 Operate control pressure bowden cable by means of the intermediate lever (35/1) until a clear increase in force is felt; tighten bolt (35/2).    
8 Check setting of the control pressure bowden cable. Detach bowden cable at intermediate lever for this step. It must be possible to press ball socket onto the ball head again without pulling.  
9 Vacuum control valve 
Slacken nuts (65/1). Move relay lever position sensor (31/1) to wide open throttle stop.
   
10 Turn vacuum control valve (65) clockwise as far as the stop; tighten nuts (65/1).