D11R and D11T Pinion and Bevel Gear History{3011, 3256} Caterpillar

Track-Type Tractor:

D11R (S/N: AAF1-UP; 9TR1-UP; 9XR1-UP; 7PZ1-UP)

D11T (S/N: AMA1-UP; GEB1-UP; TPB1-UP; MDG1-UP; JEL1-UP; JNS1-UP)

Introduction

The problem that is identified in the technical information bulletin that follows does not have a known permanent solution. Until a permanent solution is known, use the solution that is identified below.

Problem

Table 1 provides a summary of recent changes to the bevel gear set.

Solution

If a bevel gear or pinion failure occurs, be sure to verify the part number that is stamped on the failed part before reporting in SIMS.