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BAS pressure reduction function - GF42.31-P-3200A

MODELS 129, 140 as of 1.12.96, 210 as of 1.2.97, 170, 202 as of 1.6.97, 168 up to 28.2.01, 163, 203, 208, 209, 215, 220 

BAS pressure reduction 

The BAS release switch (s1) is switched passively. Solenoid valve (y1) is switched off and only creates sufficient brake pressure to correspond to the position of the brake pedal.

Illustration: release position

Fig 1: BAS Pressure Reduction Function Diagram (Release Position)
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  BAS function in normal operation   GF42.31-P-3000A 
  BAS pressure increase function   GF42.31-P-3100A 
  BAS brake booster, location / task / design / function   GF42.31-P-4000A 
  BAS control module, location / task / function   GF42.31-P-4500A