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2. Brake bleeding - Wikipedia

   en.wikipedia.org/wiki/Brake_bleeding

   A brake bleed screw is normally mounted at the highest point on each cylinder or caliper. There are five main methods of bleeding: [1] The pump and hold method, the brake pedal is pressed while one bleed screw at a time is opened, allowing air to escape. The bleed screw must be closed before releasing the pedal, or a one-way valve must be fitted.

3. Vacuum brake - Wikipedia

   en.wikipedia.org/wiki/Vacuum_brake

   Vacuum brake cylinder in running position: the vacuum is the same above and below the piston Air at atmospheric pressure from the train pipe is admitted below the piston, which is forced up. In its simplest form, the automatic vacuum brake consists of a continuous pipe—the train pipe—running throughout the length of the train.

4. Bleed screw - Wikipedia

   en.wikipedia.org/wiki/Bleed_screw

   On a hydraulic vehicle braking systems, the bleed screws (sometimes known as bleed nipples or bleeder valves) are located at the top of each brake caliper to allow bleeding of the braking system. Whenever service work has been performed on the braking system which might have introduced air into the system (i.e. the hydraulic system has been ...

5. Power brakes - Wikipedia

   en.wikipedia.org/wiki/Power_brakes

   Vacuum boosters provide brake assist for the driver by multiplying the force out of the booster creating more than the force that was used to push on the brake pedal. The booster works by pulling the air out of the booster chamber with a pump or other vacuum source (typically the engine's intake manifold [ 1 ] ), creating a low-pressure system ...

6. Vacuum breaker - Wikipedia

   en.wikipedia.org/wiki/Vacuum_breaker

   A vacuum breaker is a device that prevents water from being siphoned backward in a direction it is not desired to go. They are commonly placed on a bibcock valve or toilet or urinal flush valve , in which application they can prevent hose or drainage water from back-siphoning into the public drinking water system.

7. Red Dye 3 Just Got Banned. These Are the Foods to Avoid If ...

   www.aol.com/red-dye-3-just-got-134800003.html

   Not everything in the marketplace containing Red Dye No. 3 falls into the food categories listed above. The dye is also commonly used in drugs and dietary supplements to color pills.