摘要 |
PURPOSE:To activate circulation of working oil and to improve durability of a main clutch and a slide part by a method wherein return oil from a hydraulic power steering device is fed to a main clutch part, and the auxiliary suction port of a pump is formed in the vicinity of a main clutch. CONSTITUTION:Return oil from a hydraulic power steering device 8 is fed to a wet type main clutch part 11 arranged to the front end part of a transmission case 2 coupled directly to an engine E. Further, a suction port 3 of a pump P for a hydraulic device is formed in the rear part of the mission case 2, and an auxiliary suction port 12 to the pump P is formed in a portion located in the vicinity of the main clutch 11. During running, circulation of working oil to the main clutch 11 is activated to prevent stagnation of the flow of working oil, heretofore occurring, recovery of working oil through the auxiliary suction port 12 is smoothed, lubricating performance and cooling performance of the main clutch 11 are improved, and the flow of working oil is activated throughout the whole of the interior of the mission case 2. |