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Tag: snubbing method

Business
How To: Brake on long downgrades
The problem   Descending a long downgrade can trigger a runaway even when your brake system is in good working order. Here’s why.   The treadle valve, under the pedal, sends only a small air signal. It activates a relay valve on each axle, which applies the brakes at a pressure that varies with the […]
November 1, 2009
How-to-4
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