Diode Test
二极管测试将确定二极管是否损坏，以及是否需要更换二极管。 在测试中使用 6V-7070 数字万用表 。 将万用表设置为二极管测试位置。 从电路断开二极管。
- 将万用表的正极引线与二极管一端相连。 将万用表的负极引线与二极管对端相连。 记录万用表上的读数。
- 对换二极管上万用表的连接点。 记录万用表上的读数。
如果一端测试中的万用表读数高而对端测试中的万用表读数低，则二极管损坏。 如果两端测试中的万用表读数同时高或低，则二极损坏并需要更换。
Caterpillar Information System:
Electric Protection System Energize-To-Run For Generator Set, Industrial and Marine Diesel Engines Magnetic Pickup Test
Digital Voltage Regulator Instantaneous Trip Shutdown - Troubleshoot
3524B Engine for Caterpillar Built Machines Accessory Drive (Rear) - Install
Electric Protection System Energize-To-Run For Generator Set, Industrial and Marine Diesel Engines Oil Step Speed Calibration
3408E and 3412E Industrial Engines Sensors and Electrical Components
3524B Engine for Caterpillar Built Machines Accessory Drive (Rear) - Remove
3412E, C30 and C32 Marine Engines Electric Starting Motor - Remove and Install
Electric Protection System Energize-To-Run For Generator Set, Industrial and Marine Diesel Engines Crank Terminate Speed Calibration
3508B, 3512B, and 3516B High Displacement Generator Sets Fuel Injector - Inspect/Adjust
3500 and 3500B Engines Fuel System Fuel Filter Differential Pressure - Check
3508B, 3512B, and 3516B High Displacement Generator Sets Engine Oil Filter Differential Pressure - Check
Electric Protection System Energize-To-Run For Generator Set, Industrial and Marine Diesel Engines Overspeed Calibration
Electric Protection System Energize-To-Run For Generator Set, Industrial and Marine Diesel Engines Engine Oil Pressure Switch Test
3600 Diesel Marine Monitoring System Safety Signs and Labels
Electric Protection System Energize-To-Run For Generator Set, Industrial and Marine Diesel Engines Slave Relay Test
3600 Diesel Marine Monitoring System Electrical System
3600 Diesel Marine Monitoring System Before Starting Engine
3600 Diesel Marine Monitoring System Engine Starting
3600 Diesel Marine Monitoring System Model View Illustrations
P16, P20, P25, P28, P40 and P60 Pulverizer Before Operation
3408E and 3412E Engines for Caterpillar Built Machines Crankshaft Rear Seal - Remove
Electric Protection System Energize-To-Run For Generator Set, Industrial and Marine Diesel Engines Water Temperature Contactor Switch Test
3412E, C30 and C32 Marine Engines Crankshaft Rear Seal - Install
Electric Protection System Energize-To-Shutoff (ETS) For Generator Set, Industrial and Marine Diesel Engines Time Delay Relay Verification Test