TERMINATION DATE

October 31, 2006

PROBLEM

Higher than normal exhaust temperatures have resulted in instances of turbocharger hot housing cracks, exhaust manifold cracks, and/or persistent black smoke. This program may only be applied in the event of a turbocharger hot housing crack, exhaust manifold cracks or persistent black smoke not attributable to recognized causes of black smoke described in service publication SENR9683. If the exhaust manifold is cracked due to the turbo failure the manifold will be covered as contingent damage under this letter.

NOTE: If there are no cracks in turbo housing it will not be covered by this service letter. If the turbo fails for other reasons, ex: turbine wheel, compressor wheel, oil leaks or other failures besides high exhaust temperatures it will not be covered under this service letter and any the claim will not be allowed.

AFFECTED PRODUCT

****Group 1****

****Group 2****

PARTS NEEDED

****Group 1****

****Group 2****

*NOTE: Only order the Turbo that is the replacement for your application.

Also select the correct flash file from the table below:

ACTION REQUIRED

See the attached Rework Procedure.

 

SERVICE CLAIM ALLOWANCES

Product smu/age whichever comes first

Parts

LABOR HOUR/SUPPLEMENT BREAKDOWN BY CAB TYPE

For Black smoke:

For cracked hot housing add the following:
 

PARTS DISPOSITION

If the repair is flash-file only then no parts are required to be returned. If turbocharger is replaced, send turbo and all failed parts to the to the following address:

Caterpillar Inc.

Service Returns Room

Attn: PS50980

8201 N. University

Building C Dock 22

Peoria, IL 61615

Attach. (1-Rework Procedure)

1. Look for the improved FLS/FTS value. These values can be found at truck.cat.com à Parts & Service à Service Specific Information.
2. Flash with updated software.
3. Transfer the following data from the old engine information label to a new 121-0169 Information Plate :
1. "ENGINE MODEL"
2. "SER. NO."
3. "AR. NO."
4. "MAX ALT"
5. "PERF SPEC"
6. "ADV HP"
7. "ADV kW"
4. Transfer the NEW FLS and FTS numbers to the Information Plate
5. Remove the original information label and replace with the new information Plate.
6. Repair Turbo if cracked due to high exhaust temperatures.