| 摘要 |
PROBLEM TO BE SOLVED: To provide a hydraulic fluid filter device for speed change gear capable of positively collecting contamination by filtering hydraulic fluid, preventing in advance poor operation of a speed change operating means due to contamination and improving reliability in operation of the speed change gear.SOLUTION: Hydraulic fluid sucked up from an oil pan 14 and discharged from a hydraulic pump 12 is supplied to each of clutch controls 4 and an inner clutch and an outer clutch are connected or disconnected to change speed of a speed change gear 2. Hydraulic fluid sucked up by the hydraulic pump 12 is filtered by a first filter 7, hydraulic fluid discharged from the hydraulic pump 12 is filtered by a second filter 8, and further, hydraulic fluid just before being supplied to each of the clutch controls 4 is filtered by a third filter 9. The second filter 8 is removably attached to an outside part of the speed change gear 2, and at the same time, its opening is set to be the most fine state as compared with those of other filters 7, 9.SELECTED DRAWING: Figure 2 |
