HOSE AS 2851962 - Caterpillar

Loader Auxiliary Valve 1
The loader auxiliary valve one is located on the pilot manifold. The valve solenoid has a connector with two contacts. The sensor ground is connected to the ECM through contact J1-50. The signal contact is connected to the ECM through contact J1-51.Loader Auxiliary Valve 2
The loader auxiliary valve 2 is located on the pilot manifold. The valve solenoid has a connector with two contacts. The sensor ground is connected to the ECM through contact J1-50. The signal contact is connected to the ECM through contact J1-52.Hoe Auxiliary Valve 1 Solenoid 1
Illustration 7 g01237056
The hoe auxiliary valve 1 solenoid 1 controls the hydraulic oil flow to the seventh valve. The actuation of the proportional device activates the tool control. The proportional device is located on the handle of the left joystick. When the proportional device is actuated, the ECM reads the input. The ECM adjusts the input current according to a preset current map. The ECM outputs a current to the appropriate solenoid that is proportional to the input. Certain requirements are necessary upon powerup of a machine. The requirements reduce the risk of unexpected movement of the machine and the machine tools. The inputs to the system that directly control movement of the tools shall power up in the NEUTRAL state. All associated inputs are read in a NEUTRAL state at powerup. For the proportional input, the neutral state will be 50% plus or minus 5% of the duty cycle from the handle. The outputs of the system powerup in the OFF state. For the proportional solenoid, the off state has no electrical current flow through the solenoid coils.The solenoid has a connector with two contacts. The sensor ground is connected to the ECM through