A bulldozer (1) is provided with a first lubricating-oil supply path (31), a second lubricating-oil supply path (33), a third lubricating-oil supply path (35), and a flow-rate switching valve (43). The first lubricating-oil supply path (31) supplies part of lubricating oil discharged from a hydraulic pump (30) to a steering clutch (13a). The second lubricating-oil supply path (33) supplies part of the lubricating oil discharged from the hydraulic pump (30) to a steering brake (5a). The third lubricating-oil supply path (35) supplies part of the lubricating oil that has passed through the steering clutch (13a) to the steering brake (5a). The flow-rate switching valve (43) is disposed on the second lubricating-oil supply path (33) and switches the amount of the lubricating oil to be supplied to the steering brake (5a).
Bulldozer
2018-11-29
Patent
Electronic Resource
English