Closed on the first trailer in set of doubles. No on the middle trailer. No of a set of triples
Closed
Closed
Closed
Closed
Closed
Closed
Closed
should the shut off valves on the middle trailer of a set of triples be open or closed
should be in between intakevalve movement and exhaustvalve movement Yes, valves should be closed.
Well, that depends on what you're trying to shut off, exactly. If you're referring to the trailer supply and tractor protection valves, the knobs are located on the dash, with the actual valves underneath the dash. If you're talking about a hydraulic cut off for a wet line vehicle, it's usually at the outlet of the hydraulic tank, but if not, it'll be located somewhere between the hydraulic tank outlet and the connecting port for the trailer.
yes during ventricular systole AV valves are closed.
With springs.