BC Transit – Air Brake Course

T-75 Off-Highway System (continued)
When a brake application is made, the foot valve sends application air to the front brakes from
the brown reservoir, to the first rear axle from the red reservoir (secondary) and to the back
axle from the green reservoir (primary). By this method, all axles are isolated from each other,
and a failure of any one would not affect the other two. Of course any failure of any of the
systems would, as always, require the operator to stop immediately and fix the trouble before
continuing work.
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