Swivel Leakage - Test
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在工作温度下，液压油温度很高且处于压力下。 热机油能造成烫伤。 为避免可能的人身伤害，在断开或拆下任何液压管路或部件之前，请释放作业机具液压回路（动臂、斗杆、铲斗和回转机构）、行驶回路及液压油箱加注口盖处的压力。 仅当发动机停止并且加注口盖冷却到可以接触时方可拆下加注口盖。 |
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在检验、保养、测试、调整及维修产品时，必须小心以确保收集好排放出的油液。 在打开任何舱室或拆卸任何储有液体的部件之前，要准备好合适的容器收集液体。 将所有液体收集进合适的容器之后，按照本地法规和指令处置所有液体。 |
- 关闭作业机具的夹钳。 将作业机具放在地面上，并关闭主机的发动机。
- 检查回转接头上的排放孔有无泄漏。 如果存在回转接头泄漏迹象，更换回转接头中的密封件。 请参阅维修手册, "回转接头 - 拆解"。
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图 1 g06209833 - 从油缸上断开两个液压软管 (1)。 将盖安装到油缸的接头上，并塞住软管。
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图 2 g06209830 (A) 闭合 Show/hide table
图 3 g06209831 (B) 打开 - 将流量计与关闭回路成一条直线放置。
- 起动主机的发动机并操作机器，直到液压油达到正常工作温度。
- 启用控制装置，打开夹钳 5 秒钟。 观察流量计上的读数。 启用控制装置，关闭夹钳 5 秒钟。 观察流量计上的读数。 如果在任一方向上观察到的流量高于
1 L/min (0.26 US gpm) ，则更换回转接头的密封件。 - 重新组装液压剪。
- 操作前必须排出作业机具中的空气。 请参阅维修手册, "液压系统空气 - 净化"，以了解正确的步骤。
Caterpillar Information System:
S2050, S3050, S2070, S3070, S2090 and S3090 Shears Hydraulic Cylinder Leakage - Test
S2050, S3050, S2070, S3070, S2090 and S3090 Shears Speed Control Valve (Hydraulic Cylinder) - Test and Adjust
S2050, S3050, S2070, S3070, S2090 and S3090 Shears Hydraulic Cylinder Cycle Time - Check
S2050, S3050, S2070, S3070, S2090 and S3090 Shears Control Valve Pressure (Hydraulic Rotator) - Test
S2050, S3050, S2070, S3070, S2090 and S3090 Shears Control Manifold - Crossover Relief Valve
S2050, S3050, S2070, S3070, S2090 and S3090 Shears Hydraulic Rotator Cycle Time - Check
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S2050, S3050, S2070, S3070, S2090 and S3090 Shears Speed Control Valve
S2050, S3050, S2070, S3070, S2090 and S3090 Shears Gerotor Motor
S2050, S3050, S2070, S3070, S2090 and S3090 Shears Swivel
304.5E2 XTC Mini Hydraulic Excavators Machine Systems Track - Remove and Install
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336 and 336 GC Excavator Capacities (Refill)
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A New Motor Housing is Now Available for Certain Excavators and Mobile Hydraulic Power Units {4050, 4351} A New Motor Housing is Now Available for Certain Excavators and Mobile Hydraulic Power Units {4050, 4351}
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