Steering System
 | |
| Illustration 1 | g00709534 |
CS-533D (S/N: AFCAGHAET) | |
 | |
| Illustration 2 | g00709536 |
CS-533D (S/N: 4MZ5CZ6AZ) (1) Hydraulic tank (2) Metering pump (3) Steering cylinders (4) Gear pump (5) Fan motor | |
The steering circuit is composed of four main components:
- Hydraulic oil tank (1)
- Gear pump (4)
- Metering pump (2)
- Left and right steering cylinders (3)
The gear pump (4) delivers oil to the following components: the steering circuit, the charge circuit, the fan motor and the leveling blade (if equipped).
Typically, the requirements of the oil flow for the steering circuit are significantly less than the available pump flow. The fan motor and the leveling blade system will slow down under intensive turning situations. The total oil flow to the charge system should be consistent at all times.
The steering system is a load sensing system. Hydraulic oil for the steering circuit is supplied by the gear pump (4). The priority valve gives priority to the steering circuit. The priority valve is integrated into the pump housing. The priority valve senses pressure in the steering circuit. Then, the priority valve directs flow to the metering pump (2). The amount of oil flow depends on rotation of the steering wheel by the operator. When the steering wheel is not being turned, the priority valve shifts and the oil flow is directed away from the steering circuit.
 | |
| Illustration 3 | g00614347 |
Right Side of Machine (1) Hydraulic oil tank. | |
Hydraulic oil tank (1) is located to the rear of the engine. A strainer is located in the hydraulic oil tank. The hydraulic oil passes through the strainer and the oil goes to the suction side of the gear pump.
 | |
| Illustration 4 | g00709864 |
Right Side of Machine (4) Gear pump | |
The gear pump (4) is located in the engine compartment. The gear pump is driven by the engine. Suction is from the hydraulic oil tank (1). The gear pump provides oil flow for the steering circuit, the charge circuit, the fan motor, and the leveling blade (if equipped).
 | |
| Illustration 5 | g00709865 |
Located Under the Operator's Platform (2) Steering metering pump. (6) Load sensing line. | |
The oil flows from the gear pump (4) to metering pump (2). The metering pump is located at the bottom of the steering column under the console. The metering pump is load sensing. The load sensing line (6) provides the load signal to the gear pump.
 | |
| Illustration 6 | g00709868 |
Location of Steering Cylinder (3) Steering cylinder. | |
When the steering wheel is turned, two double acting steering cylinders (3) receive oil from the metering pump (2) in order for the compactor to make the desired turn. When the steering wheel is not being turned, a small amount of oil is required in order to provide a dynamic signal for fast steering response. With the steering control valve spool in the spring centered position, oil is blocked to the steer cylinders.
 | |
| Illustration 7 | g00709869 |
Location of Fan Motor (5) Fan motor. | |
The fan motor is always operating, when the machine is on. The gear pump delivers oil to the priority valve and the priority valve directs oil to the fan motor. The fan motor is equipped with a relief valve. The oil from the fan motor outlet flows to the propel charge filter. The fan motor is located in the rear of the machine behind the hydraulic oil cooler.
Leveling Blade System
The leveling blade system is a mechanically controlled, hydraulically operated system. The leveling blade system is composed of three main components:
- Control valve
- Cylinder
- Leveling blade
Hydraulic oil for the leveling blade system is provided by the gear pump.
 | |
| Illustration 8 | g00436531 |
Inside of the Frame (Left Side) (1) Control valve. | |
Control valve (1) is located under the operator platform. Oil flows from the gear pump to the control valve.
 | |
| Illustration 9 | g00653719 |
Operator Platform (Right Side of Seat) (2) Blade control lever. | |
Blade control lever (2) shifts the control valve between four positions. The control valve is composed of the following four positions:
- RAISE
- HOLD
- LOWER
- FLOAT
 | |
| Illustration 10 | g00709546 |
Front Of Machine (Above Leveling Blade) (3) Cylinder. | |
Leveling blade is attached to the machine at the drum yoke. Control valve (1) directs oil to the blade cylinder (3) and away from the blade cylinder. The blade is raised and lowered by retracting or extending the cylinder.
Note: The leveling blade is designed for spreading loose material only. The leveling blade is not intended to excavate material.