| 摘要 |
PURPOSE:To forestall any possible oil temperature rise in a power steering system hydraulic pump of a tractor. CONSTITUTION:This hydraulic circuit is made up of the following procedures that a suction pipe 4 being drawn from a tank port is interconnected over to an inlet port 5 of a hydraulic pump P1 of a lift cylinder system vertically rotating a lift arm and an inlet port 6 of a hydraulic pump P2 in a power steering system, and return oil out of the power steering 3 is made so as to be returned by way of being interconnected to a spot nearer than the suction pipe 4 by a return pipe 7 at the inlet port 5 of the hydraulic pump P1 of the lift cylinder system. |
