HYDRAULIC DEVICE FOR SERVICE CAR

摘要

PURPOSE: To provide a hydraulic arrangement for working vehicles that has a first hydraulic circuit for controlling hydraulic actuator of various works. CONSTITUTION: A first circuit has a liquid reservoir 34 that has a liquid circuit inlet structure arranged coaxially with a hydraulic circuit outlet structure for filling exhaust hydraulic liquid into the inlet structure. An annular opening is formed between the inlet structure and the outlet structure for receiving additional hydraulic liquid. A main hydraulic pump 38 has case drains 400, 402, and the case drain guides the fluid back to the reservoir through one of the case drains having an oil cooling line 404 or a release valve 406.