Most heavy-duty vehicles use dual air brake systems for safety.
A dual air brake system has two separate air brake systems, which use a single set of brake controls.
Each system has its own air tanks, hoses, lines, etc.
One system typically operates the regular brakes on the rear axle or axles. The other system operates the regular brakes on the front axle (and possibly one rear axle).
Both systems supply air to the trailer (if there is one). The first system is called the "primary" system. The other is called the "secondary" system.
Before driving a vehicle with a dual air system, allow time for the air compressor to build up a minimum of 100 psi pressure in both the primary and secondary systems. Watch the primary and secondary air pressure gauges (or needles, if the system has two needles in one gauge).
Pay attention to the low air pressure warning light and buzzer.
The warning light and buzzer should shut off when air pressure in both systems rises to a value set by the manufacturer.
This value must be greater than 60 psi.
The warning light and buzzer should come on before the air pressure drops below 60 psi in either system. If this happens while driving, you should stop right away and safely park the vehicle. If one air system is very low on pressure, either the front or the rear brakes will not be operating fully. This means it will take you longer to stop. Bring the vehicle to a safe stop, and have the air brakes system fixed.
GOOD LUCK:-)
the brake control valve is used to control the amount of hydrauic pressure form the hydraulic system to the brake system through the metering valve.
construction of one way valve brake system..
it is something in the circulatory system and i just turned eleven so how should i know.
The function of the wasegate valve is to divert exhaust gases away from the turbine in the engine system. This enables it to control the speed of the turbine.
A valve in the brake system which houses portioning valve metering and pressure differentional valve
It's a trailer control valve.
Yellow for the tractor brake control valve, red for the trailer supply valve.
I believe that would be the rear brake anti-lock control valve. You should still have rear brakes with that disconnected but the anti-lock will not function.
Charge the trailer air brake system and check that the trailer rolls freely then stop and pull out the trailer air supply control also called tractor protection valve control the trailer emergency valve or place it in with the tractor to check that the trailer emergency brakes are on.
Assuming you're talking about a brake control valve, there is no wiring...
The sensor decide when the wheels are losing traction. When this happens, the controller engages a valve system in the vehicle that controls the brake fluids in the lines.
That function is handled by the antilock brake hydraulic unit.That function is handled by the antilock brake hydraulic unit.