WEAR PLATE 3026903 - Caterpillar

Introduction
ReferenceTesting and Adjusting, RENR8482The 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
Damage to the rear gear group of the engine could result if the bolts that hold the torsional coupler to the engine flywheel have failed. The transmission pump supplies lubrication to the gears and the bearings within the flywheel housing. The transmission pump will not be operational if the bolted joint for the torsional coupling has failed.Solution
If the machine has lost use of multiple forward and reverse gears, remove the magnetic transmission screens. Check the screens for metal debris such as broken bolts and washers. Check the magnetic screen prior to performing any of the diagnostic tests for the power train that are described in the Testing and Adjusting, RENR8482. Some of the diagnostic tests for the power train require the engine to be run in order to complete the tests. Running the engine may cause additional damage to the rear gear group.