To: Secret Agent Man
No.
They operate by air but if the system loses air the brakes will all lock up.
Air pressure is what actually releases the brakes in truck air brake systems.
There is no dead man type switch.
9 posted on
09/12/2020 10:43:58 PM PDT by
right way right
(May we remain sober over mere men, for God really is our only true hope.)
To: right way right
16 posted on
09/12/2020 11:31:18 PM PDT by
Governor Dinwiddie
(Guide me, O thou great redeemer, pilgrim through this barren land.)
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