| 摘要 |
PURPOSE: To provide a transmission operating device preventing the entry of dust and the like without lowering the responsiveness of a transmission operating cylinder. CONSTITUTION: The exhaust ports of second change-over valves 24, 44 are communicated with atmospheric pressure chambers 18, 38, and exhaust ports 27a, 47a with volume equivalent to at least maximum air intake capacity are disposed in fluid passages for communicating the exhaust ports of the second change-over valves 24, 44 with the atmospheric pressure chambers 18, 38. |
