ELBOW 0024896 - Caterpillar

Illustration 6 g01740812
Location of angle cylinders (3) Ripper Cylinder
Illustration 7 g01740796
Location of ripper cylinder (4) Case Drain Filter
Illustration 8 g01739775
Case drain filter (5) stops debris in the oil that flows from the implement pump case drain, the steering pump case drain, and the steering motor case drain back to the tank in order to prevent damage to the hydraulic system components. The case drain filter is located behind the access door on the right side of the machine.Implement Control Valve
Illustration 9 g01739755
The system contains three control valves, or four control valves if the machine is equipped with a ripper. The control valves control the oil flow to the implement cylinders. Implement control valve (6) is located behind the access door on the right side of the machine.All the control valves have makeup valves or combination line relief and makeup valves except for the tilt control valve and ripper RAISE. The line relief valves protect the cylinders and the lines from pressure spikes that are caused by outside forces on the blade. Makeup valves work in conjunction with the return oil check valve in order to combine return oil flow with supply oil. This occurs when implements are moved rapidly and the demand for oil exceeds the flow capacity of the oil pump.Oil to the control valve, from the control valve, and for the load sensing pressure flows through the inlet manifold. The inlet manifold is mounted directly to the control valve stack. There is a return oil check valve between the return line and the hydraulic tank. The return oil check valve works in conjunction with the makeup valves in order to prevent voiding of the cylinders in most cases.Hydraulic Tank and Filter
Illustration 10 g01739773
Hydraulic tank (7) is located at the rear of the machine on the right side. The hydraulic tank is a reservoir that contains the hydraulic oil. The main oil filter assembly is a part of the hydraulic tank assembly. The filter stops debris in the oil that flows from the control valves back to the tank in order to prevent damage to the hydraulic system components.Accumulator
Illustration 11 g01740799
Accumulator (8) is located behind the access panel that is located to the right of the operator's seat. Accumulator (8) is used to supply oil to the pilot control valves in a engine shutdown condition. This will allow the operator to lower the implements when the engine is off.Remote Pressure Taps
Illustration 12 g01739758
Remote pressure taps (9) provide convenient testing of the system conditions. Remote pressure taps (9) are located behind the access door on the left side of the machine.ReferenceRefer to Testing and Adjusting, "Pressure Taps" in this manual for more information on the remote pressure taps.Hydraulic Pump
Illustration 13 g01741195
Hydraulic implement pump (10) is a pressure compensated piston pump with variable displacement. The pump provides the oil flow for the implement hydraulic system. Oil is pumped from the hydraulic tank and to the control valves. The oil is then available to activate the implements when the operator moves the implement control levers.A compensator valve is