Low Engine Oil Pressure
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注意 |
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不要在机油压力低的情况下运转发动机。 这样会造成发动机损坏。 如果测得的机油压力低,请停止运转发动机,直到问题得以解决。 |
- 发动机机油油位低
- 发动机机油滤清器脏污
- 发动机机油泵堵塞
- 发动机机油冷却器堵塞
- 发动机机油被燃油稀释
- 凸轮轴和/或凸轮轴轴承
- 曲轴轴承
检查发动机机油油位。 如果发动机机油油位低,则添加发动机机油。
检查发动机机油滤清器。 如果发动机机油滤清器脏污,请安装一个新的发动机机油滤清器。 检查滤清器旁通阀的工作情况。 清洁旁通阀及壳体。 如有必要,请安装新零件。
检查发动机机油泵的进口滤网是否堵塞。 检查发动机机油泵有无过度磨损。
检查发动机机油冷却器。 清洁发动机机油冷却器芯和/或安装新的发动机机油冷却器芯。
检查润滑油中是否存在燃油。 请参考故障诊断和排除 , "发动机机油被燃油稀释 "部分的诊断程序。
检查凸轮轴和/或凸轮轴轴承。 检查各零部件有无过度磨损。 如果有过度磨损,则说明油路堵塞。 检查曲轴和/或曲轴轴承。 检查各零部件有无过度磨损。
Caterpillar Information System:
572R Pipelayer Power Train Idler - Assemble
517 Track-Type Skidder Engine Supplement Muffler and Exhaust Extension - Remove and Install
572R Pipelayer Power Train Idler - Disassemble
517 Track-Type Skidder Engine Supplement Hood - Remove and Install
517 Track-Type Skidder Engine Supplement Fuel Transfer Pump - Install
517 Track-Type Skidder Engine Supplement Fuel Transfer Pump - Assemble
517 Track-Type Skidder Engine Supplement Fuel Transfer Pump - Disassemble
517 Track-Type Skidder Engine Supplement Fuel Transfer Pump - Remove
517 Track-Type Skidder Engine Supplement Fuel Priming Pump - Remove and Install
784C and 785C Off-Highway Trucks Machine Systems Steering Accumulator - Remove
D250E Series II and D300E Series II Articulated Trucks Power Train Transmission Hydraulic Control Valve - Remove
3500B and 3500B High Displacement Generator Set Engines Oil Contains Coolant
5130, 5130B and 5230 Excavators, 784B, 785B, 785C, 789B, 789C, 793B and 793C Off-Highway Truck/Tractors and 992G, 994 and 994D Wheel Loaders Vital Information Management System (VIMS) Charging System - Test
793C Off-Highway Truck/Tractor Power Train Lockup Clutch and Synchronizing Valve - Disassemble
572R Pipelayer Power Train Steering Clutch and Brake - Disassemble
3524B Engines for Off-Highway Trucks Coolant Temperature Is Too High
517 Track-Type Skidder Engine Supplement Radiator Guard - Remove
517 Track-Type Skidder Engine Supplement Radiator - Remove
517 Track-Type Skidder Engine Supplement Radiator - Disassemble
517 Track-Type Skidder Engine Supplement Radiator - Assemble
517 Track-Type Skidder Engine Supplement Radiator - Install
517 Track-Type Skidder Engine Supplement Radiator Guard - Install
517 Track-Type Skidder Engine Supplement Turbocharger - Remove and Install
517 Track-Type Skidder Engine Supplement Water Pump - Remove