OIL SEAL 0785467 - Caterpillar

Introduction
An additive is required for the hydraulic system in order to maintain hydraulic system performance.Problem
The hydraulic system may develop a slow response time or the hydraulic system may seem to have low power.Solution
An oil additive is required with every change of the hydraulic system oil in order to help maintain the hydraulic system performance. Add 1U-9891 Hydraulic Oil Additive to the hydraulic oil system after one year of operation or 2000 hours for the machines that are listed above. Replace the components that are not functioning correctly only if this fix does not correct the problem. One quart of 1U-9891 Hydraulic Oil Additive will need to be added to the hydraulic tank with every subsequent oil change.