GF42.31-P-3100A | BAS pressure increase function | 18.3.08 |
MODEL 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, 208, 209, 215, 220
MODEL 203 up to Model Year 08 /Modification Year 07
P42.31-0213-76
BAS pressure increase
The activation conditions for a BAS brake application are fulfilled, the BAS solenoid valve (y1) is opened. Atmospheric pressure is applied to the back of the power diaphragm. The pressure difference between the front and back of the diaphragm provides maximum brake power assistance.
Illustration shows BAS brake application
A7/7 BAS brake booster
y1 BAS solenoid valve (control valve)
a Atmospheric pressure
c Vacuum