105411-1670 ZEXEL 9 420 612 535 BOSCH GOVERNOR 9420612535 1054111670 1157707300

The information supplied in this service letter may not be valid after the termination date of this program. Do not perform the work outlined in this Service Letter after the termination date without first contacting your Caterpillar product analyst.
This Program can only be administered after a failure occurs. The decision whether to apply the Program is made by the dealer. When reporting the repair, use "PS0843" as the Part Number and "7755" as the Group Number. Use "96" as the Warranty Claim Description Code and use "Z" as the SIMS Description Code.
This revised service letter replaces the April 25, 1995 (Revised April 1997) Service Letter. Changes have been made to the Termination Date.
Termination Date
December 31, 1998Problem
Low power complaints may be the result of a reduced fuel rate in the Electronic Unit Injectors of certain 3406E Truck Engines.
Affected Product
Model & Identification Number
3406E (5EK1-58999)
Parts Needed
Not applicable.
Action Required
When the customer's complaint is, "The 3406E ran well when it was new, but now it has lost power", follow the procedure below:
1. Verify that the engine has more than 30,000 miles (48,600 km) (700 hours). If the engine has less than 30,000 miles (48,600 km) (700 hours), this Program does NOT apply.The customer must continue to operate the engine until it acquires more than 30,000 miles (48,600 km) (700 hours) before this Program applies.2. This program allows the dealer to get FLS/FTS numbers for any 3406E engine unless PS0843 has been previously completed.3. After it has been determined that this Program applies to an engine, collect the data in the left column. 4. After you have collected the above data:a. Get on Caterpillar Network.b. Enter AIMS.c. Enter ACF2M.d. Select JTZ101 3406EFLS/FTS Adjustments.e. Enter all information collected above.f. Hit enter and the new settings (right hand side of screen will be displayed.g. Write or print the NEW FLS (ECM) and NEW FTS (ECM) numbers.h. Hit enter to initiate password.5. After entering new FLS/FTS number in the ECM, record and enter the following information in the COMMENTS SECTION ON THE FRONT PAGE of the warranty claim.a. FINAL Top Engine Limit (TEL____). See Illustration 1.b. % time 1700 RPM or above (RPM). See Illustration 2.c. % time 65 MPH or above (M__). See Illustration 3. d. % time Idling (I__). See Illustration 4.The arrows in the Illustrations indicate the numbers used in this example. The COMMENT SECTION for the example shown below would read: TEL 1820 R28 M01 I01
The examples below are from ECAP but the information is also available on ET and the display is similar.
Illustration 1
Illustration 2
Illustration 3
Illustration 4Service Claim Allowances
This is a 1.0-hour job.No parts or other expenses will be allowed. When claiming for the labor, use labor code 1901-025.