SHAFT-BEVEL 2A7221 - Caterpillar

Problem
In high impact applications the track roller shell may deform on certain 219D, 225B, 225D, 229, 229D, 231D, 235B, and 235C Excavators. Deformed rollers can leak oil and result in the roller shell seizing to the shaft.
Affected Product
Model & Identification Number
219D (5XG1-535)
225B (2ZD1-Up; 3YD1-UP)
225D (6RG1-694; 2SJ1-551)
229 (1GF1-Up; 1AG1-Up)
229D (2LJ1-372)
231D (1NK1-165)
235B (7WC1-Up; 9PC1-Up; 1FD1-Up; 4ED1-Up)
235C (5AF1-1278; 2PG1-672; 3WG1-251; 4DG1-552)
Parts Needed
1 - 8E4573 Roller Group (219D, 225B, & 225D - use as req'd)1 - 8E4576 Roller Group (229, 229D, & 231D - use as req'd)1 - 8E4579 Roller Group (235B & 235C - use as req'd)Action Required
Replace the failed (deformed) roller(s) with the new roller(s) listed under Parts Needed.
Service Claim Allowances
This is a 1-hour job per roller.
Parts Disposition
Handle the parts in accordances with your Warranty Bulletin on warranty parts handling.