LINING 6Y2367 - Caterpillar

Daily
Visually inspect the front and rear suspension cylinders for leaking oil. If leaking oil is present, remove the cylinder and repair the leak. Repair the cylinder or replace the cylinder as soon as possible.
Illustration 1 g01219112
Suspension cylinder (1) Relief valve (2) Plug (3) FittingVisually inspect the front and rear suspension cylinders for any unusual conditions that might affect the operation of the cylinder or the ride of the truck. The following conditions can affect performance:
collapsed cylinder
excessive rod extension
damage to the chrome on the cylinder rodGrease that is forced into the cavity that is inside of the cylinder at Location (A) will limit the travel of the cylinder rod. If the travel of the cylinder rod is limited, the ride of the truck can become rough. If reduced travel of the cylinder rod is found, repair the cylinder or replace the cylinder as soon as possible.Note: Do not attempt to remove the relief valves (1), plug (2), or fitting (3) when there is pressure in the cylinder.Every 500 Service Hours or 3 Months
Front Suspension Cylinder
Personal injury or death can occur if personnel are trapped between the wheel and the frame.The steering system is hydraulically controlled and wheels can crush personnel during movement.Use caution when working between the wheels and the frame. If the wheels must be turned, ensure that all personnel are clear of the machine before any movement.
Illustration 2 g01273811
Right front suspension cylinder (X) Distance of exposed chromeMeasure the distance of the exposed chrome (X) on the suspension cylinders. Compare the present distance to the previous distance. If you do not have the previous dimensions, perform the charging procedure. See Testing and Adjusting, "Suspension Cylinder (Front) - Purge and Charge" for the charging procedure. Record the dimensions for future reference.Note: If the present distance is not equal to the previous distance, perform the charging procedure or the purge procedure so the two dimensions are equal. See Testing and Adjusting, "Suspension Cylinder (Front) - Purge and Charge" for the charging procedure.Note: There is a relief valve on the forward side of the front suspension cylinder. This relief valve is located 180 degrees from the lubrication fitting. Do not plug the grease passage of the relief valve.Rear Suspension Cylinder
Illustration 3 g01273813
Right rear suspension cylinder (Y) Distance between the pinsMeasure distance (Y) for the rear suspension cylinders. Compare the present distance to the distance from the previous time. If you do not have those dimensions, perform the charging procedure. See Testing and Adjusting, "Suspension Cylinder (Rear) - Purge and Charge" for the charging procedure. Record the dimensions for future reference.Note: If the present distance is not equal to the previous distance, perform the charging procedure or the purge procedure so the two dimensions are equal. See Testing and Adjusting, "Suspension Cylinder (Rear) - Purge and Charge" for the charging procedure.Every Year
Purge the nitrogen charge from the suspension cylinders. Refer to the procedure to purge suspension cylinders in Special Instruction, SEHS9411.Replace the relief valves on the front suspension cylinder and make sure that all the