FRAME AS 1475352 - Caterpillar

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Steering System Hydraulics (1) Steering Pump (2) Steering Charge Pump (3) Steering Control Lever (4) Main Suction Manifold (5) Cold Oil Relief Valve (6) Steering Motor (7) Charge Oil FilterSteering Charge Pump and Steering Pump
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(1) Steering Pump (2) Steering Charge PumpSteering pump (1) is mounted on the upper left of the engine flywheel housing. The steering pump is an axial piston pump with overcenter capability. The output direction and flow of the steering pump is controlled by the pump control valve.Steering charge pump (2) is located on the rear of steering pump (1), which is mounted on the upper left of the engine flywheel housing. The steering charge pump is a gear pump that is a positive displacement type pump. This pump provides charge oil for the steering hydraulic circuit.Steering Controls
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(3) Steering Control LeverSteering control lever (3) is located on the left console in the cab area. In FORWARD gear, push the steering control lever away from the operator for STEER LEFT. In FORWARD gear, pull the steering control lever toward the operator for STEER RIGHT. The position sensors in the steering control lever send a signal to the power train ECM. The power train ECM controls the response of the steering hydraulic system.Cold Oil Relief Valve
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(4) Main Suction Manifold (5) Cold Oil Relief ValveCold oil relief valve (5) is installed in the right side of main suction manifold (4). This valve protects the charge circuit against high pressures when the machine is first started and the hydraulic oil is cold. The oil that passes through the cold oil relief valve returns to main suction manifold (4) .Steering Motor
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(6) Steering MotorSteering motor (6) is installed into the front of the main case on the left side of the machine. This motor is a fixed displacement bent axis motor which can turn in either direction. The direction of rotation is determined by the input flow to the motor from the steering pump. The output shaft of the steering motor turns the steering differential, which causes the machine to turn.Charge Oil Filter
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(7) Charge Oil FilterCharge oil filter (7) is mounted at the rear of the tractor under the fuel tank. The charge oil filter traps debris that is in the oil in order to prevent damage to the steering system components.Pressure Taps
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(6) Steering Motor (8) Pressure Tap ("HD") (9) Pressure Tap ("HC")Pressure taps (8) and (9) are located on steering motor (6) .Pressure tap (8) ("HD") measures the pressure of the oil that is in the right steering loop. Pressure tap (9) ("HC") measures the pressure of the oil that is in the left steering loop.
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(1) Steering Pump (10) Pressure Tap ("X1") (11) Pressure Tap ("X2")Pressure taps (10) and (11) are located on steering pump (1), as shown.Pressure tap (11) ("X2") measures the pressure of the oil that is acting on the