Engine Oil Pressure - Test
简介
此步骤旨在给出测试发动机机油压力的信息。
所需工具
Show/hide table
所需工具     | ||
零件号     | 零件描述     | 数量     |
4C-4890     | 液压测试总成     | 1     |
测试步骤
机油压力低
下述情况会导致机油压力低。
- 曲轴箱中的油位低。
- 机油吸油滤网上发生阻塞。
- 机油管接头泄漏。
- 连杆或主轴承磨损。
- 机油泵中的转子磨损。
- 机油压力安全阀工作异常。
机油压力安全阀磨损可能会使机油通过阀发生泄漏,从而降低机油压力。 有关正确的工作压力及其它信息,请参阅规格模块, "发动机机油安全阀"。
当涡轮增压式发动机在正常操作温度下以高怠速运转时,机油压力不得低于 280 kPa (40 psi)。 低怠速时机油压力低是正常的。
可使用 4C-4890 液压测试总成 来测试润滑系统压力。
机油压力高
机油压力高可能由以下情况引起。
- 机油压力安全阀的弹簧安装不正确。
- 机油压力安全阀的柱塞卡在关闭位置。
- 机油中有大量油泥,使机油粘度过高。
Caterpillar Information System:
C-15 and C-16 Industrial Engines Sensors and Electrical Components
G3516B and G3520B Generator Set Engines Engine Oil Cooler - Remove
3500B and 3500B High Displacement Engines for Caterpillar Built Generator Sets Injector Solenoids
3126B Industrial Engine Turbocharger - Install
C4.4 Industrial Engine Fuel Conservation Practices
3126B Industrial Engine Vibration Damper
3054 Engine Engine Oil Pump - Inspect
3126B Industrial Engine Water Pump - Install
3126B Industrial Engine Engine Oil Pressure Sensor - Test
3500B and 3500B High Displacement Engines for Caterpillar Built Generator Sets Engine Speed/Timing Sensor
3054 Engine Cylinder Head - Inspect
C32 Petroleum Engines Diagnostic Flash Code Retrieval
2000/12/01 Recommended Procedure For Lubricating And Tightening The Bolts That Fasten The Counterweights To The Crankshaft {1231}
3054 and 3056 Marine Generator Set Engines Cooling System - Check - Overheating
3126B Industrial Engine Turbocharger - Remove
3054 and 3056 Marine Generator Set Engines Cooling System - Inspect
3054 and 3056 Marine Generator Set Engines Cooling System - Test
3054 Engine Cylinder Liner Projection - Inspect
C-15 and C-16 Industrial Engines Reference Material
3126B Engines Basic Engine
322C Excavator Machine System Specifications Track
3054 and 3056 Marine Generator Set Engines Cylinder Liner - Remove
3054 and 3056 Marine Generator Set Engines Cylinder Liner - Install
Marine Monitoring System II Analog Input Module