Electronic Control Module (ECM) - Replace
更换 PL522 或 523 之前，确保确实需要更换。 PL522 或 523 很少会成为故障根源。 务必认真检查 PL522 或 523 的电源。 PL522 或 523 机器线束接头的触点 1 和 2 之间需要蓄电池电压。 只有所有其它尝试隔离出故障的方法失败后再继续进行。 一定要咨询您代理商的技术通信员征求 Caterpillar 可能的意见。 这个咨询可以大大减少修理所需的时间。
- 将断路开关和钥匙起动开关转到 OFF 位置。 断开 PL522 或 523 上的机器线束。
- 拆下 PL522 或 523。
- 确保替代 PL522 或 523 套件具有正确的零件编号。
- 根据安装套件随机提供的专门说明书安装替代 PL522 或 523 系统。
- 为新模块闪存软件，以确保系统上具有最新版本的软件。
Caterpillar Information System:
Product Link - PL522/523 Electronic Control Module (ECM) - Flash Program
A New Torque Value Is Used for the Fuel Pressure Regulator Valves on Certain Diesel Engines{1251, 1262, 1274} A New Torque Value Is Used for the Fuel Pressure Regulator Valves on Certain Diesel Engines{1251, 1262, 1274}
Product Link - PL522/523 MID 161 - CID 1251 - FMI 03
Product Link - PL522/523 MID 161 - CID 1250 - FMI 09
Product Link - PL522/523 MID 161 - CID 0254 - FMI 12
Product Link - PL522/523 MID 161 - CID 0254 - FMI 04
2010/11/05 A New Air Motor Lubricator Gp Is Used and A New Fitting Is Available for Service on Certain Engines {1451, 1451}
Product Link - PL522/523 MID 161 - CID 0168 - FMI 01
Product Link - PL522/523 MID 161 - CID 0168 - FMI 00
Product Link - PL522/523 Diagnostic Code List
450E Backhoe Loader Machine Electronic Control System Data Link
Product Link - PL522/523 Operating Hours Discrepancy
Product Link - PL522/523 Electrical Connector - Inspect
Product Link - PL522/523 Wiring Harness (Open Circuit) - Test
Product Link - PL522/523 Wiring Harness (Short Circuit) - Test
Product Link - PL522/523 Specifications
Product Link - PL522/523 System Schematic
Installing Tapered Roller Bearings in 6G-6352 Planet Gears in Final Drives of Off-Highway Trucks{0760, 0761, 4050, 4055, 7551} Installing Tapered Roller Bearings in 6G-6352 Planet Gears in Final Drives of Off-Highway Trucks{0760, 0761, 4050, 4055, 7551}
2010/06/21 A New Procedure to Replace the Rear Hydraulic Electronic Pilot Valve Gp On Certain Telehandlers Is Now Available {5051}
AP555E and BG555E Asphalt Pavers Machine Systems Drive Belt (Generator) - Remove and Install
777G Off-Highway Truck Direction and Speed Control
777G Off-Highway Truck Chassis Electronic Control System MID 087 - CID 2183 - FMI 09
777G Off-Highway Truck Chassis Electronic Control System MID 087 - CID 2183 - FMI 14
777G Off-Highway Truck Engine and Machine Warm-Up