3126B Petroleum Engine Caterpillar


E039 Low Engine Oil Pressure Derate

Usage:

3126B Z2A
产生此代码的情况:

发动机至少已经运转了10秒钟。 一旦发动机转速与低怠速相差不超过50 rpm,这10秒钟的延迟就开始计时。

发动机机油压力低于图1中的"减额(Derate)"线长达2秒钟。




图 1g00784705

机油压力图

系统响应:

电子控制模块(ECM)将会记录此诊断编码。 当活动"减额(Derate)"出现时,报警灯将闪烁。

ECM将以每秒17.5%的速率降低发动机的功率一直到35%的最大减额度。 当发动机机油压力连续2秒钟升高到超出低压触发线以上70 kPa (10 psi)时,ECM将恢复发动机的全功率输出。

卡特彼勒电子技师(ET)将在其任一状态屏幕上的第一个发动机状态栏内显示"发动机减额(Engine Derate)"。

功率低

  • 发动机润滑系统可能有问题。

测试步骤 1. 检查有无诊断编码

  1. 将卡特(Cat)ET与维修工具接头相连接。

  1. 将发动机控制置于通电(ON)模式。 发动机应处于停机状态。

  1. 检查有无任何活动或记录诊断编码。

预期结果:

应无任何诊断编码出现。

结果:

  • 与预期结果一致 - 进行步骤2。

  • 与预期结果不符 -

    修复: 修理出现的诊断编码。 请参阅本手册"有故障编码出现时的故障诊断与排除"部分中的适当专题。确保修理后故障被排除。

    停止

测试步骤 2. 检查发动机机油油位

  1. 将发动机控制置于断电/复位(OFF/RESET)模式。 发动机应处于停机状态。

  1. 检查发动机机油油位。

预期结果:

发动机机油油位应处于正常位置。

结果:

  • 与预期结果一致 - 发动机机油油位处于正常位置。

    修复: 请参阅测试与调整, "发动机机油压力 - 测试"。

    停止

  • 与预期结果不符 - 发动机机油油位低。

    修复: 添加发动机机油至正确油位。

    停止

Caterpillar Information System:

3126B Petroleum Engine E027 High Inlet Air Temperature Warning
3126B Petroleum Engine E025 High Inlet Air Temperature Derate
C7 Marine Engines Electric Starting Motor - Remove and Install
C7 Marine Engines Alternator - Remove and Install
UPS 250, UPS 300, UPS 301, UPS 500, UPS 600, UPS 750 and UPS 900 Uninterruptible Power Supplies Modem
C7 Marine Engines Electronic Control Module - Remove and Install
C7 Marine Engines Crankshaft Gear - Remove and Install
G3500B Engines Auxiliary Water Pump
G3500 A3 Engines Engine Shutdown
C-10 and C-15 Petroleum Engines Intermittent Engine Shutdown
2004/07/01 Internal Components for Remanufactured Injectors are Now Coated for Increased Service Life {1290}
3126B Petroleum Engine Exhaust Temperature Is Too High
3126B Petroleum Engine E040 Low Engine Oil Pressure Shutdown
C15 On-highway Engines Engine Control Module - Remove and Install
C-10 and C-15 Petroleum Engines E054 High Fuel Temperature Derate
C-10 and C-15 Petroleum Engines E055 High Fuel Temperature Shutdown
C-10 and C-15 Petroleum Engines E056 High Fuel Temperature Warning
C-10 and C-15 Petroleum Engines E443 High Auxiliary Pressure
C-10 and C-15 Petroleum Engines E445 High Auxiliary Temperature
C-10 and C-15 Petroleum Engines 5 Volt Engine Pressure Sensor Supply Circuit - Test
C15 On-highway Engines Fuel Filter Base - Remove
C11 and C15 Engines for Caterpillar Built Machines CID 0262 FMI 03 5 Volt Sensor DC Power Supply short to +batt
C15 On-highway Engines Fuel Filter Base - Install
C11 and C15 Engines for Caterpillar Built Machines CID 0262 FMI 04 5 Volt Sensor DC Power Supply short to ground
Back to top
The names Caterpillar, John Deere, JD, JCB, Hyundai or any other original equipment manufacturers are registered trademarks of the respective original equipment manufacturers. All names, descriptions, numbers and symbols are used for reference purposes only.
CH-Part.com is in no way associated with any of the manufacturers we have listed. All manufacturer's names and descriptions are for reference only.