DISTORTER G 5P7318 - 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. Disconnect two hydraulic hoses (1) from the steering cylinder. Plug the hoses to prevent loss of oil, and to keep dirt out of the hydraulic oil system. Remove bolt (2) from the pin hold down tab. Remove pin (3) from the holding bracket and the cylinder. Remove two spacers (4) from between the cylinder boss and the holding bracket. 3. Attach a lifting sling and a hoist to steering cylinder (5) as shown. 4. Remove four bolts (8) from cover (7). Remove cover (7) from lean arm (9). Remove cotter pin (6) from the nut on the rod end of the cylinder. Loosen the nut until it is even with the end of the threaded rod. Strike the nut with a hammer to free the joint. Remove the nut with a hammer to free the joint. Remove the nut from rod end (7). Remove the rod end and the plastic washer from lean arm (9). Remove the cylinder from the axle. The weight of the cylinder is 20 Kg (45 lb).Install Steering Cylinders
1. Be sure all the parts of the steering cylinders and spindle arms are clean prior to assembly. During installation of the steering cylinders, check the condition of all O-ring seals used in the ends of hose assemblies that were disconnected. If any of the seals are damaged, use new parts for replacement. Check the condition of the plastic washers used between the lean arms and the threaded rods, on the rod end of the cylinders. If any of these washers are worn or damaged, use new parts for replacement. 2. Attach a lifting strap and a hoist to steering cylinder (5).