| 摘要 |
Apparatus for controlling supply of air to front brakes in an air brake system of a truck when a manually operable valve (16) is operated to inhibit flow of air to the front brakes comprises a by-pass loop (17, 17') including an electrically operable valve (19). The valve is operated when a switch (28) is closed on moving a gear selection lever (29) to a position to select reverse gear.
|
