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 Caterpillar


Service Tools

Usage:

325D L A3R
使用下列维修工具来帮助诊断和排除电气系统故障。

  • Caterpillar 电子技师(ET)3.2 版或以上版本

  • 146-4080 数字万用表或等效工具

  • 9U-7330 数字万用表或等效工具

  • 7X-1710 万用表表笔

  • 8T-8726 适配器缆线

  • 4C-3406 接头修理工具包

  • 276-7273 传感器测试箱

注: 传感器测试箱是用来测试 Caterpillar 油缸位置传感器的一种仪表。

有关 Cat-ET 的更多信息,请参阅故障诊断和排除, "使用 Caterpillar 电子技师(Cat-ET)确定诊断代码)"。 维修工具。

使用数字万用表来检查连续性或电压。 请参阅以下专门说明书以了解有关 6V-7070 数字万用表使用的更多信息。 请参阅专门说明书, SEHS7734, "6V-70706V-7800 万用表的使用"。 7X-1710 万用表表笔用来在接头处进行测量而无需断开接头。 将表笔沿导线推入接头背面中。 8T-8726 适配器缆线是一种 “3 针”叉接线束,用来测量传感器电路。

对于现代 Caterpillar 电路,除线束测试外,不推荐使用某些测试设备。 此类测试仪包括下列示例: 8T-0500 导通性测试仪 和 5P-7277 电压测试仪。

注: 用于测试"缸内"位置传感器的步骤已经开发出来。 请参阅专门说明书 REHS7338, "测试液压油缸位置传感器的步骤"。

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 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
C15 and C18 Engines for Caterpillar Built Machines Alternator Mounting
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 Electrical Component and Connector Locations
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
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