PIN 4Z8338 - Caterpillar

Introduction
The problem that is identified below does not have a known permanent solution. Until a permanent solution is known, use the solution that is identified below.Problem
Reports of hitch bearings and pins wearing out prematurely. Initially, most reports seem to be failures in abrasive sandy applications.
Illustration 1 g03833654
View of hitchSolution
In order to maximize the joint life, lubricate machines frequently with grease that has a molybdenum content of five percent. Frequent greasing will aid in flushing contamination out of the joint. For details on correct greasing of machines, refer to Service Magazine, SEPD1753, "New Recommendation for Lubrication of Bearings" and Operation and Maintenance Manual, SEBU8345, " Lubricant Viscosities Fluids Recommendations".