Symptom Troubleshooting
发动机的某些故障现象可能与电子控制系统无关。 收集描述故障现象的抱怨信息。 确认抱怨不是由发动机正常运转引起的。
执行以下步骤来确定故障。
- 修理所有激活的诊断代码。
- 收集操作员信息。
- 确认抱怨不是由发动机正常运转引起的。
- 对发动机执行目视检查。 检查下列各项:
- 配线
- 接头
- 燃油油位
- 燃油供给
- 发动机机油油位
- 发动机机油供给
- 冷却液液位
- 进气系统
- 排气系统
- 检查配线和接头有无以下问题:
- 损坏
- 磨蚀
- 腐蚀
- 安装不正确
- 检查有无记录的诊断代码。
- 确定记录的诊断代码是否与可能原因相关。
- 确定记录的诊断代码是否与故障现象同时出现。
- 确定记录的诊断代码是否被重复记录。
如果这些检查不能揭示问题,则应使用最能描述故障现象的步骤。
Caterpillar Information System:
2006/08/07 Correction to Disassembly and Assembly , "Differential Pinion - Assemble" {3254}
M325D L MH and M325D MH Material Handlers Hydraulic System Control Valve (Boom Lowering) - Manual
2006/08/07 Correction to Disassembly and Assembly , "Differential and Bevel Gear - Install" {3254, 3258}
12M, 140M and 160M Motor Graders Hydraulic and Steering System Accumulator (Blade Cushion) - Test and Charge
2006/10/16 Test Cable Group Checks Three-Wire, Active Analog Circuits That Are Used in Sensors {0779, 0785}
M325D L MH and M325D MH Material Handlers Hydraulic System Boom Dampening System
2006/08/14 Improvements to the Boom Assembly {6501}
814F Series 2 Wheel Dozer, 815F Series 2 Soil Compactor and 816F Series 2 Landfill Compactor Engine Oil Sample - Obtain
Three-Point Retractable Seat Belt Cinching{7327} Three-Point Retractable Seat Belt Cinching{7327}
216B3, 226B3, 236B3, 242B3 and 252B3 Skid Steer Loaders, 247B3 and 257B3 Multi Terrain Loaders and 259B3 Compact Track Loader Backup Alarm - Test
814F Series 2 Wheel Dozer, 815F Series 2 Soil Compactor and 816F Series 2 Landfill Compactor Safety Messages
793D Off-Highway Truck Air System and Brakes Air Tank (Primary)
Filtration Procedure for Articulated Truck Transmission Oil {0680, 0768, 3016, 3030} Filtration Procedure for Articulated Truck Transmission Oil {0680, 0768, 3016, 3030}
RM-300 Reclaimer Mixer Machine Systems Rotor Transmission - Remove
RM-300 Reclaimer Mixer Machine Systems Rotor Transmission - Install
C15 and C18 Petrolem Generator Set Engines Alternator Problem - Charging Problem and/or Noisy Operation
C15 and C18 Petrolem Generator Set Engines Coolant Contains Fuel
572R Series II Pipelayer Specifications
572R Series II Pipelayer Rollover Protective Structure (ROPS) - Inspect
Maintenance Mode Clock Issue for PL300{7606} Maintenance Mode Clock Issue for PL300{7606}
3408E and 3412E Engines for Caterpillar Built Machines Engine Has Mechanical Noise (Knock)
773D and 777D Off-Highway Truck/Tractors Caterpillar Monitoring System System Schematic
420E, 430E, 432E, 434E, 442E and 444E Backhoe Loaders Hydraulic and Steering System System Pressure - Release
C4.2 and C6.4 Engines for Caterpillar Built Machines Oil Contains Coolant