brakes on the trailer wheels (not shown). As a piston push rod 44 is moved into a master cylinder 48 hydraulic fluid is sent to the brakes, thereby applying them and slowing the trailer. The housing 22 is slidably connected to a ball-type hitch 36 by means of bolts 38 and 39 ...
not be any delay In the application of the atmospheric air through said pipe to the rear face of the piston 177, so that the brakes 184 will become set and receive at least some braking force when the manual force is being applied directly through the ports 19, 21 and 23 to set the ...
In the invention, a manually controlled brake release mechanism 48 is provided for releasing the brake 36, when the hydraulic circuit is not connected to a tractor vehicle without discharging fluid from the hydraulic circuit.CHRISTIAAN ANDRE CAMIEL * LIPPENS...
Since we would be stuck in the shop awaiting the part anyway, on Thursday we had Joel go ahead and install an air dryer into our system, which keeps moisture out of our brakes and suspension system. This is more modern technology than available in 1961 when our bus was built, and an u...
Release the brake pedal. Block the wheels with chocks when parking a car with hitched trailer on a hill. Starting on a hill Depress the brake pedal fully. Select gear positionD. Releasing the parking brake. Release the brake pedal and start driving off. ...
subject to brake cylinder pressure in chamber 36, a piston 28 subject to pressure in automatic pipe A, a manually-controlled brake applying and releasing device D controlling all the brakes and a number of auxiliary brake applying and releasing devices Da to independently release associated brakes....
brakes have not been set. Further, the system is fail-safe and automatically reinserts the locking pins in the locking pin holes if the power to a control panel is interrupted or air pressure is applied to release the semitrailer's air brakes. The air cylinders have electronic position ...
applying a pre-stress to the quick release diaphragm;releasing the spring brake unit by delivering pressurized air from the supply passage to the delivery passage; andcontrolling a parking application of the spring brake unit by delivering pressurized air from the spring brake unit to the exhaust ...
(4), and the trailer vehicle brakes being connected to the towing vehicle brakes by means of separable air connectors, the system comprising a controller (9) mountable in or on the towing vehicle, detector means (7) associated with the coupling means for detecting locking thereof, and ...
cylinders. But the systems described in these two patents do not provide a fail-safe all pneumatic system which prevents the locking pins from being retracted unless the semitrailer brakes are set and will automatically reset the pins if air pressure is applied to release the semitrailer brakes....