Air Conditioning E12 - Recirculation Sensor (Short Circuit)
参考关于传感器的正确位置，请参阅系统操作, "空调系统"。
- 测量再循环传感器的电阻值。 请参阅"技术规格"。 转至步骤 2。
- 如果电阻值不正确，请参阅步骤 3。 如果电阻值正确，请参阅步骤 4。
- 更换再循环传感器。
- 断开传感器上的接头，并测量接头 GN/YL 和 PK/GN 间的电压。 请参阅"技术规格"。 转至步骤 5。
- 如果电压值不正确，请参阅步骤 6。 如果电压值正确，请参阅步骤 7。
- 检查并修理接头和控制面板间的线束。 另外，检查系统电源。
- 安装传感器，并测量控制面板端子 10 和 11 间的电压。 请参阅"技术规格"。 转至步骤 8。
- 如果电压值不正确，请参阅步骤 9。 如果电压值正确，请参阅步骤 10。
- 检查并修理接头和控制面板间的线束。
- 更换控制面板。
再循环传感器内电阻
- 0 °C (32 °F) ... 1.645 kΩ
- 25 °C (77 °F) ... 5 kΩ
接头间的电压 ... 5.0 V
端子间的电压
- 10 °C (50 °F) ... 3.41 V
- 20 °C (68 °F) ... 2.87 V
- 25 °C (77 °F) ... 2.59 V
- 30 °C (86. °F) ... 2.32 V
- 20 °C (68 °F) ... 2.87 V
Caterpillar Information System:
C7 Engines for Caterpillar Built Machines Turbocharger - Inspect
C7 Engines for Caterpillar Built Machines Fuel System Pressure - Test
735 and 740 Articulated Trucks Cab - Tilt
2005/02/07 Additional Information for the Operation and Maintenance Manual {7254, 7256}
259B3 Compact Track Loader, 247B3 and 257B Series 3 Multi Terrain Loaders and 216B Series 3, 226B3, 236B3, 242B Series 3 and 252B Series 3 Skid Steer Loaders Control Manifold (Quick Coupler)
C0.5, C0.7, C1.1/3011C, C1.5/3013C, C1.6 and C2.2/3024C/3024CT Industrial Engines and Engines for Caterpillar Built Machines Wastegate - Test
267B, 277B and 287B Multi Terrain Loaders Machine Systems Piston Pump - If Equipped
AP-1055D and BG-2455D Asphalt Pavers Machine Systems Hydraulic Generator - Remove
C11 and C15 Engines for Caterpillar Built Machines E390 Fuel Filter Restriction
2005/01/24 New Plate Design Prevents Unintentional Deactivation of Hydraulic Bucket Control Detents and Kickouts {5059, 5130}
267B, 277B and 287B Multi Terrain Loaders Machine Systems High Flow Hydraulic System - Test and Adjust - If Equipped
2005/01/10 New Duo-Cone Seal Groups Are Now Used On Arctic Applications {7561}
C7 Engines for Caterpillar Built Machines Engine Oil Pressure - Test
C11 and C15 Engines for Caterpillar Built Machines CID 0275 FMI 03 Right Turbo Inlet Pressure open/short to +batt
C11 and C15 Engines for Caterpillar Built Machines CID 0275 FMI 04 Right Turbo Inlet Pressure short to ground
735 Articulated Truck Jacking/Blocking Locations
988G Wheel Loader Power Train Output Transfer Gears - Disassemble
AP1055D and BG2455D Asphalt Pavers Engine Supplement Exhaust (Muffler) - Remove and Install
834H Wheel Dozer and 836H Landfill Compactor Machine Systems Gear Pump (Implement, Pilot, Brake) - Remove
834H Wheel Dozer and 836H Landfill Compactor Machine Systems Gear Pump (Implement, Pilot, Brake) - Install
834H Wheel Dozer and 836H Landfill Compactor Machine Systems Seat - Remove
834H Wheel Dozer and 836H Landfill Compactor Machine Systems Seat - Install
834H Wheel Dozer and 836H Landfill Compactor Electrohydraulic System Position Sensor for the Joystick Control (Operator Monitor) - Calibrate
834H Wheel Dozer and 836H Landfill Compactor Machine Systems Steering Cylinder - Remove and Install