Turn the wheel to set/release handbrakes, or jump on a car, and use the keyboard controls for locomotive Independent Brake (F7 / K to apply, F8 / L to release) You can combine these keys with Shift to set or release the handbrake on all cars in the same train as the current carOnce train pressure reaches 70 psi or above, the brake release piston 7 pushes up the handbrake 4 to the released position 4' which releases the manual handbrake system for a railroad car Since each handbrake on each car is connected to the main air pressure brake line 13, all handbrakes on a train are released automatically upon the trainHow works handbrake in car or truck There is idea and moving parts info
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