General Testing and Adjusting Information
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发动机和泵停机之后，液压油的压力仍会保留在液压系统里。 对液压系统进行维修之前，如果事先不释放此压力，可能会造成严重伤害。 为防止发生事故，松开、拧紧、拆下或调整任何接头、软管、部件之前，请参阅测试和调整, "液压系统压力 - 释放" 章节。 开始维修之前，只要可能就必须把作业工具降到地面上。 执行测试或调整时，如果需要把动臂置于升高的位置，请确保动臂、斗杆和作业工具得到正确支撑。 开始维修之前，回转锁（如有配备）必须锁上。 一定要将机器移到远离其它机器行驶线路的地方。 发动机运转并进行测试或调整时，应保证其他人员远离机器。 |
正常操作要求机油温度、流量和压力适当。 泵输出（机油流量）是发动机转速（转/分）和阀调整的函数。 机油压力是机油流动受阻所产生的。
目视检查和测量是故障诊断和排除的第一步。 请参阅测试和调整, "目视检查"。
然后执行操作检查。 请参阅测试和调整, "操作检查"。
最后对机器执行所需的测试和调整。
Caterpillar Information System:
416C, 426C, 428C, 436C and 438C Backhoe Loaders Hydraulic and Steering System Priority Valve
120H, 12H, 135H, 140H, 143H, 14H, 160H, 163H and 16H Motor Graders Caterpillar Monitoring System Glossary of Terms
789B Off-Highway Truck Hydraulic System Hydraulic Tank (Torque Converter, Hoist, Brake, and Transmission)
784B and 785B Off-Highway Truck Hydraulic System Hydraulic Components and Lines
784B and 785B Off-Highway Truck Hydraulic System Hydraulic Components and Lines
120H, 12H, 135H, 140H, 143H, 14H, 160H, 163H and 16H Motor Graders Caterpillar Monitoring System Related Components
793B Off-Highway Truck Electronic Monitoring System (EMS)
768C, 769C, 769D, 772B, 773B, 773D, 776C, 777B, 777D, 784B, 785, 785B, 789, 789B, 793, 793B and 793C Off-Highway Truck/Tractors and 771C, 771D and 775D Quarry Trucks Automatic Retarder Control (ARC) System General Information
789B Off-Highway Truck Steering System Piston Pump (Steering) Flow - Test
789C Off-Highway Truck Steering System Steering System Troubleshooting
120H, 12H, 135H, 140H, 143H, 14H, 160H, 163H and 16H Motor Graders Caterpillar Monitoring System Action Alarm
789C Off-Highway Truck Steering System Visual Inspection
793B Off-Highway Truck Product Identification Number, Serial Number and EU's CE Plate Locations
784B and 785B Off-Highway Truck Hydraulic System Hydraulic Tank (Torque Converter, Pulled Unit, Brake, and Transmission)
583R Pipelayer Power Train Power Train Hydraulic System
550, 570 and 580 Wheel Harvesters Plate Locations and Film Locations
793B Off-Highway Truck Truck Payload Measurement System (TPMS)
784B and 785B Off-Highway Truck Hydraulic System Gear Pump (Hoist and Rear Brake Cooling)
3516B Generator Set Engines with Dynamic Gas Blending Cooling System Operation - Jacket Water Aftercooled
572R Pipelayer Transfer and Bevel Gears
784B and 785B Off-Highway Truck Hydraulic System Gear Pump (Pulled Unit Hydraulics and Rear Brake Cooling)
789C Off-Highway Truck Steering System Piston Pump (Steering) Pressure - Test and Adjust
784B and 785B Off-Highway Truck Hydraulic System Hoist Control
784B and 785B Off-Highway Truck Hydraulic System Hoist Control (Pulled Unit)