Brake System Troubleshooting
这部分提供了已知问题的可能原因。 由于可能存在多个原因,可能建议进行特定的检查或仪表测试。 这些检查和测试可帮助确定问题的最可能原因。
前行车制动器不工作。
- 前蓄能器损坏或有缺陷。
- 内部制动管路或制动器总成中的密封件损坏或磨损。
- 制动泵失效或者制动泵损坏。
- 制动器总成在主轴和轴套之间界面处损坏。
后行车制动器不工作。
- 后蓄能器损坏或有缺陷。
- 内部制动管路或制动器总成中的密封件损坏或磨损。
- 制动泵失效或者制动泵损坏。
- 制动器总成在主轴和轴套之间界面处损坏。
行车制动器打滑。
- 内部制动管路或制动器总成中的密封件磨损或损坏。
- 制动器总成中的制动盘磨损。
行车制动器作用不均匀。
- 制动器总成液压油中混有空气。
- 一或多个制动盘或制动器总成中的相关组件过度磨损。
- 制动器阀粘住或损坏。
踩下制动踏板需要的力太大。
- 制动踏板和制动踏板连杆损坏。
- 制动器阀粘住或损坏。
- 踏板向驾驶室地板的移动受阻。
制动器油压太低的警告无法关闭。
- 液压油温度过高。
- 制动泵磨损或损坏。
停车制动器不能使机器保持在适当位置。
- 必须对停车制动器进行调整。
- 制动衬片磨损。
- 在制动鼓和制动衬片上有润滑油或机油。
Caterpillar Information System:
2008/01/28 New Driveline Components Improve Service Life of Wheel Loaders {3253, 3267}
2007/12/31 A New Calibration Procedure is Now Available {4269}
992K Wheel Loader and 854K Wheel Dozer Steering System Gear Pump (Steering Oil Cooler) (Steering Pilot)
994F Wheel Loader Pump Drive (Rear) from Engine - Separate
993K Wheel Loader Electrohydraulic System Piston Pump Margin Pressure (Hydraulic Fan) - Test and Adjust
992K Wheel Loader and 854K Wheel Dozer Power Train Trunnion Support (Oscillating Axle, Front) - Remove
993K Wheel Loader Engine Supplement Engine - Remove
AD55B Underground Articulated Truck C27 Engine Supplement Bottom Guard (Engine) - Remove and Install
AD55B Underground Articulated Truck Power Train Drive Shaft (Upper) - Remove and Install
992K Wheel Loader Machine Systems Control Valve (Tilt Regeneration) - Assemble
992K Wheel Loader Machine Systems Control Valve (Tilt Regeneration) - Disassemble
992K Wheel Loader Machine Systems Control Valve (Tilt Regeneration) - Install
2008/02/11 The Improved Software for the Autolube {7540, 7610, 7620}
994F Wheel Loader Pump Drive (Rear) to Engine - Connect
993K Wheel Loader Electrohydraulic System Pump Performance (Implement) (Lift Time) - Test
992K Wheel Loader and 854K Wheel Dozer Power Train Trunnion Support (Oscillating Axle, Front) - Install
Failed Relays are Reported in the Secondary Steering System{4493, 7620} Failed Relays are Reported in the Secondary Steering System{4493, 7620}
992K Wheel Loader and 854K Wheel Dozer Power Train Trunnion Support (Oscillating Axle, Front) - Disassemble
992K Wheel Loader and 854K Wheel Dozer Power Train Trunnion Support (Oscillating Axle, Front) - Assemble
993K Wheel Loader Power Train Torque Converter Stall (3FWD) - Test
854K Wheel Dozer Oil Renewal System Oil - Add - If Equipped
993K Wheel Loader Power Train Torque Converter Stall (1FWD) - Test
993K Wheel Loader Electrohydraulic System Torque Converter Stall and Implement Pump Double Stall - Test
993K Wheel Loader Power Train Differential Backlash and Bearings - Adjust