Usage:
Problem:
A number of pavers may have been assembled with incorrect bearing cones installed in the outer locations in 7R-0244 and 7R-0248 Track Idler And Bogie Roller Groups . The inner and outer tapered roller bearing cones have the same outside diameter and width, and are assembled with the same bearing cup.
The correct 4D-3882 Inner Bearing Cone has an inside diameter of 73.025 mm (2.875 in.). The correct 006-7232 Outer Bearing Cone, has an inside diameter of 69.850 mm (2.75 in.).
Some idler and bogie roller groups may have the 4D-3882 Inner Bearing Cone installed in both the inner and outer locations. This could result in misalignment of the idler and roller groups under load. Misalignment could cause uneven track, idler or roller wear.
Solution:
If there is significant, uneven wear, and/or idler or roller group misalignment, check to make sure that the correct bearing cones have been installed in the idler and bogie roller groups.
NOTE: The AP-1050 Parts Manual (Form No: KEBP0077) lists the bearing cones incorrectly. The correct part no. are listed above. A Parts Manual correction will be made.
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