GENERATOR A 5P7360 - Caterpillar

At operating temperature, the hydraulic oil is hot and under pressure. Hot oil can cause burns. Sudden movement of the machine or release of oil pressure can cause injury to persons on or near the machine. To prevent possible injury, perform the following procedure before working on the hydraulic and steering systems.
a. Move the machine to a smooth horizontal location. Move away from working machines and personnel. Lower all implements to the ground. Install the wheel lean pin in front axle.b. Permit only one operator on the machine. Keep all other personnel either away from the machine or in view of the operator.c. Activate the parking brake. Place all implements on the ground and put the blade in the "FLOAT" position.d. Stop the engine.e. Turn the steering wheel back and forth several times to relieve pressure in the steering accumulator.f. Carefully loosen the filler cap on the hydraulic tank to release pressure in the tank.g. Be sure all hydraulic pressure is released before any fitting, hose, or component is loosened, tightened, removed or adjusted.h. Tighten the cap on the hydraulic tank.i. The pressure in the hydraulic system must be released before lines or components can be removed.
Hydraulic pressure can exist in the hydraulic lines between the control valves and the cylinders with the engine stopped. Manually relieve pressure before working on any hydraulic circuit.
2. Remove plug (1) from ecology drain (2) at the bottom of the oil tank. Drain the hydraulic oil in a suitable container for storage or disposal. The capacity of the hydraulic oil tank is 63 liters (16.8 U.S. gal). Compensator valve (5) is below the cab on the left side of the machine.3. Disconnect pipe (4) from compensator valve (5). Remove four socket head bolts (3) that secure compensator valve (5) to the implement pump. Remove compensator valve (5) and the three O-ring seals under compensator valve (5) from the implement pump.Install Compensator Valve
1. During installation of compensator valve (5), check the condition of all O-ring seals used under the valve that was removed or used in the end of the pipe that was disconnected. If any of the seals are damaged, use new parts for replacement. Be sure all components are clean prior to installing the compensator valve. 2. Install the three O-ring seals under compensator valve (5). Position compensator valve (5) to the implement pump. Install four socket head bolts (3) that secure compensator valve (5) to the implement pump. Connect pipe (4) to compensator valve (5). Four socket head bolts (3) must be tightened to a torque of 34 3 N m (25 2 lb ft). 3. Install plug (1) in ecology drain (2) at the bottom of the oil tank. Fill the oil tank to the proper level with oil. Refer to the "Operation & Maintenance Manual" for the proper procedure, oil and oil level.Disassemble Compensator Valve
Start By:a. remove compensator valve 1. Clean the compensator valve before disassembly. 2. Remove three O-ring seals (2). Put orientation marks on