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62580 Under rest conditions, the exhaust is open, since spring (5) Piston push rod seat (4) initially closes the exhaust and When in section 21 and chamber A a pressure value is ÷ 0.3 bar, valve (8) is also opened due to the piston thrust effect. Piston (7) abuts on valve (8), closes the exhaust and opens In case of failure in the control section 11-21, the other one By completely operating on control push rod (2) (maximum ± 0.3 bar that is the pressure self-limiting value. In case of failure 0 (zero) bar in supply fitting 11, by completely Such behaviour is guaranteed by the control push rod (2) At a push rod (2) stroke of 0.5 ÷ 1.5 mm, the stop lights contacts are closed and the engine brake contacts are opened Unbraking By releasing the brake pedal, the control push rod (2) and the By going on releasing the brake pedal, the valves remain into At the end of the release, also microswitches (3) return to Air leakage from Distributor with irregular Vibrations when braking Irregular stop lamp INCONVENIENCE POSSIBLE REASON REMEDY Outlet ducts leakage for sealing gaskets Self-limitation higher or lower than the re- Springs wear. Air leakage caused by piston gaskets seal in The electric circuit does not close. The electric circuit does not open. Revise the device replacing the faulty parts. By operating on the suitable screw, calibrate the device. Revise the device replacing the faulty parts. Revise the device replacing the faulty parts. Replace the switch. Replace the switch. Diagnostics Figure 41 E URO C ARGO T ECTOR 12-26 t PNEUMATIC SYSTEM - BRAKES 69 Base - February 2003 |