Most trailers have an air-activated release for the locking mechanism, and usually, the trailer parking brake must be set for the locks to disengage. Also, the trailer air suspension may deflate when the parking brakes are set. When the trailer is loaded, the locking pins usually will not d...
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...
regripping of the steering wheel, or other operations provided for releasing the brakes, provide a substantially immediate release of the brakes of the propelling vehicle, and in so doing will release the brakes of the propelling vehicle prior to the release of the brakes of the trailing vehide...
releasing position, means for actuating said control device for reversing the 16 application of atmospheric pressure and reduced pressure to said plunger actuating means to move said plunger and apply the brakes to said trailer vehicle and an equalizing connection between said fluid pressure cylinder ...
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...
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....
The tractor brakes 16 may be applied by means of a power device 20 and the trailer brakes 18 may be applied by means of a power device 22. In the conventional tractor-trailer power brake system, the power devices are usually of the differential air pressure type, either compressed air acti...
The connection with the spring brake circuitry is a safety feature in the event the operator does not release the manual control for the elevating means prior to releasing the parking brakes on the trailer.doi:US4558886 AGerald J. Straub
In the preferred embodiment the braking system 14 is a hydraulic master cylinder which is operably connected to 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...
1.A brake system of a trailer vehicle that can be coupled to a tractor vehicle to form a vehicle train, the brake system of the trailer vehicle comprising:an electronic control device,brakes actuatable based on a first brake signal received from the tractor vehicle and a second brake signal...