School me on Pressure Gauges

[Flogger]

Almost sounds like a faulty accumulator.

 

[Richard]

would it *necessarily* have one and if so, where would it be? path seems to be tank to pump, pump to circuit one or two, back to tank. rinse & repeat.

one circuit has the two motors, 1,500 psi relief each, other circuit has single motor, 2,500 psi relief.

 

[Flogger]

A tractor schematic would be a necessity. It just seems lime a recipe for disaster not ti have one in circuit somewhere.