![My air brakes pump up to 135 psi but when I release park brakes and supply air to trailer the psi drops to 100psi and My air brakes pump up to 135 psi but when I release park brakes and supply air to trailer the psi drops to 100psi and](https://ww2.justanswer.com/uploads/TR/TravisWells77/2014-03-12_064331_brakes_comp_unloader.gif)
My air brakes pump up to 135 psi but when I release park brakes and supply air to trailer the psi drops to 100psi and
![680E) - CASE CONSTRUCTION KING LOADER BACKHOE (1/74-12/78) (248) - BRAKE SYSTEM, AIR COMPRESSOR GOVERNOR Case Constructuion 680E) - CASE CONSTRUCTION KING LOADER BACKHOE (1/74-12/78) (248) - BRAKE SYSTEM, AIR COMPRESSOR GOVERNOR Case Constructuion](https://storage.googleapis.com/a2109_c1_500/casece2/95/955678.png)
680E) - CASE CONSTRUCTION KING LOADER BACKHOE (1/74-12/78) (248) - BRAKE SYSTEM, AIR COMPRESSOR GOVERNOR Case Constructuion
All Automotive Engineers in Ethio. - AIR BRAKE SYSTEM AND WORKING PRINCIPLE Introduction “Brakes are as important as an engine for an automobile” very rightly said as if we require engine to
![Genuine Bendix 275491 D-2 Governor, 100-120 PSI (NEW): AnythingTruck.com, Truck & Trailer Parts and Accessories Warehouse Genuine Bendix 275491 D-2 Governor, 100-120 PSI (NEW): AnythingTruck.com, Truck & Trailer Parts and Accessories Warehouse](https://www.anythingtruck.com/mm5/graphics/00000001/061-284358R_600_540x540.jpg)