Hydraulic Oil Cooler
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图 1 | g01406354 |
(1) 液压油冷却器 (2) 变速箱机油冷却器 (3) 燃油冷却器 |
液压油冷却器 (1) 位于液压风扇正前方。 液压油冷却器对使用液压油箱油的所有液压系统进行冷却。
液压油冷却器位于变速箱油冷却器 (2) 附近。
液压油冷却器使液压油保持在正确的工作温度。
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图 2 | g01418798 |
(1) 液压油冷却器 (4) 轮轴油冷却器泵和马达 (5) 风扇马达 (6) 液压油冷却器旁通阀 (7) 液压油滤清器 (8) 轮轴油冷却器 (9) 轮轴油压开关 (10) 后轮轴 |
机油经轮轴油冷却器泵和马达 (4) 从液压风扇马达 (5) 流到液压油冷却器 (1) 。 机油冷却后,流进液压油滤清器 (7) 。 然后再回到油箱。
机油冷却器旁通阀 (6) 是液压回路的一部分。 对于没有轮轴油冷却器的机器,如果液压油冷却器进口和出口之间的压力差超出 448 kPa (65 psi),则机油冷却器旁通阀 (6) 会转移液压油冷却器周围的机油。
以下情况可能致使机油冷却器旁通阀转移液压油周围的机油:
- 液压油过冷
- 液压油管路阻塞
- 液压油冷却器阻塞
车桥油冷却器
以下轮式装载机可选择后轮轴使用双盘制动器:
- 924H
- 924HZ
- 930H
配有双盘制动器的机器后轮轴上有轮轴油冷却器 (8) 。 需要轮轴油冷却器来冷却制动中产生的多余热量。
对于有轮轴油冷却器的机器,如果液压油冷却器 (1) 进口和出口之间的压力差超出 827 kPa (120 psi),则机油冷却器旁通阀 (6) 会转移液压油冷却器周围的机油。
用于轮轴油压力的开关 (9) 是一种压力开关,在轮轴中油压过低时显示。 压力高于阈值时,该开关常闭。 压力低于阈值时,开关打开。
该开关是变速箱 ECM 的一个输入。 该开关用于驱动仪表组上的轮轴油低压指示灯。
Caterpillar Information System:
2007/12/10 The Cushion-Hitch Lines Group is Updated {5057}
C32 Engine for D11T Track-Type Tractors Sensor Supply - Test
2008/04/28 Correction to Systems Operation Troubleshooting Testing and Adjusting , "MID 027 - CID 0444 - FMI 03" {1426}
2007/12/10 Correction to Systems Operation Testing and Adjusting , "Engine Start" {1408, 1450}
2007/12/10 Correction to Systems Operation Testing and Adjusting , "Engine Start" {1408, 1450}
2007/12/10 Correction to Systems Operation Troubleshooting Testing and Adjusting , "System Schematic" {7566}
AD55B Underground Articulated Truck Power Train Electronic Control System MID 027 - CID 0967 - FMI 02
906H, 906H2, 907H, 907H2, 908H and 908H2 Compact Wheel Loaders Machine Systems Cab - Install
906H, 906H2, 907H, 907H2, 908H and 908H2 Compact Wheel Loaders Machine Systems Cab - Remove
IT38H Integrated Toolcarrier and 938H Wheel Loader Braking and Hydraulic Fan System Brake Accumulator - Test and Charge
D11T Track-Type Tractor Power Train Location of Power Train Components
C32 Engine for D11T Track-Type Tractors Sensor Signal (Analog, Passive) - Test
906H, 906H2, 907H, 907H2, 908H and 908H2 Compact Wheel Loaders Machine Systems Blower Motor (Air Conditioner, Heater) - Remove
906H, 906H2, 907H, 907H2, 908H and 908H2 Compact Wheel Loaders Machine Systems Blower Motor (Air Conditioner, Heater) - Install
906H, 906H2, 907H, 907H2, 908H and 908H2 Compact Wheel Loaders Machine Systems Heater Coil - Remove
906H, 906H2, 907H, 907H2, 908H and 908H2 Compact Wheel Loaders Machine Systems Heater Coil - Install
906H, 906H2, 907H, 907H2, 908H and 908H2 Compact Wheel Loaders Machine Systems Metering Pump (HMU) - Remove
906H, 906H2, 907H, 907H2, 908H and 908H2 Compact Wheel Loaders Machine Systems Metering Pump (HMU) - Install
906H, 906H2, 907H, 907H2, 908H and 908H2 Compact Wheel Loaders Machine Systems Seat - Remove and Install
910K and 914K Compact Wheel Loaders Steering Wheel - Remove and Install
C32 Engine for D11T Track-Type Tractors Starting Aid - Test
2008/04/28 The Apron Link Pin and the Retainer Have Been Improved {6202}
2007/11/12 Improved Air Conditioning Condenser Core Is Now Available {1805, 7320}
D7E Track-Type Tractor Monitoring System Data Link