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Tag: trailer brake hoses

How to: Prevent Brake Failure

Federal regulations mandate brake wear specifications. For example, air disc brakes must have 1⁄16 of an inch of lining; air drum brakes must have 1⁄4 of an inch. Some types of failures can cause a spring brake to stick on. If the air chamber that retracts a (parking) spring brake fails, it’s a simple procedure […]

September 1, 2009

Like an inspector, you can measure brake stroke with a ruler. First make the position of the push rod right where it passes through the chamber wall. Position a tape measure with the 0 mark against the chamber wall. Then have someone apply the brakes with 90 - 100 psi. Finally, measure the distance the mark has moved.

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