Electrical Component and Connector Locations
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| 图 1 | g01207600 |
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机器 ECM 舱室（典型） | |
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| 图 2 | g01207601 |
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机器 ECM （位于机器左侧的驾驶室后部舱室中） (1) 控制器 (2) J1 接头 (3) J2 接头 | |
电子控制模块可以通过 Cat 数据链路彼此通信。 来自这些电子控制装置的信息可以通过机器监视器进行访问，或者在笔记本电脑上使用 Caterpillar 电子技师（Cat ET）进行访问。
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| 图 3 | g01207656 |
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Cat ET 维修接头 （位于操作员座椅后面，在右侧开关控制台下方） (4) 操作员座椅背面（前移以便接近） (5) 备用开关 (6) 右侧开关控制台 (7) Cat ET 维修接头 | |
Cat ET 维修接头位于驾驶室内。 该接头位于座椅后方、驾驶室右侧。
Caterpillar Information System:
320D, 321D, 323D, 324D, 325D, 326D, 328D, 329D, 330D, 336D, 336D2, 340D and 340D2 Excavators, 324D Forest Machine and 323D MHPU, 324D MHPU, 325D MHPU, 329D MHPU, 330D MHPU and 336D MHPU Mobile Hydraulic Power Units Machine Electronic Control System Service Tools
320D, 321D, 323D, 324D, 325D, 326D, 328D, 329D, 330D, 336D, 336D2, 340D and 340D2 Excavators, 324D Forest Machine and 323D MHPU, 324D MHPU, 325D MHPU, 329D MHPU, 330D MHPU and 336D MHPU Mobile Hydraulic Power Units Machine Electronic Control System General Information
345C Excavator and 345C MHPU Mobile Hydraulic Power Unit Machine Systems Manual Ball Valve (Counterweight Circuit) - Remove
324D, 325D, 326D and 329D Excavators and 329D MHPU Mobile Hydraulic Power Unit Machine Systems Accumulator - Remove and Install
345C MHPU Mobile Hydraulic Power Unit Machine Systems Pilot Valve (Travel) - Assemble
320D, 321D, 323D, 324D, 325D, 326D, 328D, 329D, 330D, 336D, 336D2, 340D and 340D2 Excavators, 324D Forest Machine and 323D MHPU, 324D MHPU, 325D MHPU, 329D MHPU, 330D MHPU and 336D MHPU Mobile Hydraulic Power Units Machine Electronic Control System Related Components
320D and 323D Excavators Hydraulic System Engine Performance - Test - Engine Speed
320D, 321D, 323D, 324D, 325D, 326D, 328D, 329D, 330D, 336D, 336D2, 340D and 340D2 Excavators, 324D Forest Machine and 323D MHPU, 324D MHPU, 325D MHPU, 329D MHPU, 330D MHPU and 336D MHPU Mobile Hydraulic Power Units Machine Electronic Control System Solenoids
324D, 325D, 326D and 329D Excavators and 329D MHPU Mobile Hydraulic Power Unit Machine Systems Manual Valve (Auxiliary Shutoff) - Install
320D, 321D, 323D, 324D, 325D, 326D, 328D, 329D, 330D, 336D, 336D2, 340D and 340D2 Excavators, 324D Forest Machine and 323D MHPU, 324D MHPU, 325D MHPU, 329D MHPU, 330D MHPU and 336D MHPU Mobile Hydraulic Power Units Machine Electronic Control System Sensors
416E Backhoe Loader Extendable Stick Pads - Inspect/Adjust - If Equipped
374D and 390D Excavators Machine Electronic Control System Pedal Control
320D, 321D, 323D, 324D, 325D, 326D, 328D, 329D, 330D, 336D, 336D2, 340D and 340D2 Excavators, 324D Forest Machine and 323D MHPU, 324D MHPU, 325D MHPU, 329D MHPU, 330D MHPU and 336D MHPU Mobile Hydraulic Power Units Machine Electronic Control System Diagnostic Capabilities
325D and 329D Excavators and 325D Material Handler Machine System Specifications Relief Valve (Pilot) - Front Lines
324D, 325D, 326D and 329D Excavators and 329D MHPU Mobile Hydraulic Power Unit Machine Systems Pressure Reducing Valve (Implement and Swing Priority) - Remove
854K Wheel Dozer and 992K Wheel Loader Power Train Using the Operator Monitor to Determine Diagnostic Codes
G3304 and G3306 Engines Electric Starting Motor
345C Excavator and 345C MHPU Mobile Hydraulic Power Unit Machine Systems Manual Ball Valve (Counterweight Circuit) - Install
320D, 321D, 323D, 324D, 325D, 326D, 328D, 329D, 330D, 336D, 336D2, 340D and 340D2 Excavators, 324D Forest Machine and 323D MHPU, 324D MHPU, 325D MHPU, 329D MHPU, 330D MHPU and 336D MHPU Mobile Hydraulic Power Units Machine Electronic Control System MID 039 - CID 0110 - FMI 04
320D, 321D, 323D, 324D, 325D, 326D, 328D, 329D, 330D, 336D, 336D2, 340D and 340D2 Excavators, 324D Forest Machine and 323D MHPU, 324D MHPU, 325D MHPU, 329D MHPU, 330D MHPU and 336D MHPU Mobile Hydraulic Power Units Machine Electronic Control System MID 039 - CID 0110 - FMI 09
324D, 325D, 326D and 329D Excavators and 329D MHPU Mobile Hydraulic Power Unit Machine Systems Swing Drive - Remove
324D, 325D, 326D and 329D Excavators and 329D MHPU Mobile Hydraulic Power Unit Machine Systems Swing Cushion Valve - Remove
345C Excavator and 345C MHPU Mobile Hydraulic Power Unit Machine Systems Solenoid Valve (Counterweight Circuit) - Remove
416E, 420E and 430E Backhoe Loaders Hydraulic and Steering System Multipurpose Bucket Cylinder