PSP FOR REPLACING THE CONNECTING ROD BEARINGS IN CERTAIN 3406B TRUCK ENGINES - EFFECTIVE OCTOBER 09, 1990 - PS6041 - MAILED US AND CANADA, COFA, CFEL, TRUCK TEPS, LIMITED COSA Caterpillar

(Effective October 9, 1990)
U-241
AU-152
E-147
O-183.4
TT-20
1219  PS6041
NOTE: 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 "PS6041" as
Part Number, "7755" as Group Number, and "96" as
Description Code.

December 31, 1991

A single connecting rod bearing may fail on certain 3406B Truck Engines.
When this bearing fails, no smearing or scratching of adjacent bearings will
be detectable.

Model Identification Number
3406B 7FB1-UP
8TC1-UP
4MG1-UP

6 - 9Y9497 Bearing-Connecting Rod

After a rod bearing fails, check the fuel settings and timing advance
adjustment to determine if these conditions contributed to the bearing
failure. If the engine is found to have been adjusted in excess of
specification, this Program cannot be applied.
Follow the procedures in the Service Manual and repair the engine.
Caterpillar Remanufactured Crankshafts are to be used. Locally reground
crankshafts are not authorized in these repairs.

Product Caterpillar Dealer Suggested Customer Suggested
miles/age Parts Labor Parts Labor Hrs. Parts Labor Hrs.
whichever
comes
first
0-300000 100% 20 0 0 0 0
0-60 mo
300,001- * * 0 0 * *
500,000
0-60 mo
NOTE: This is a 20-hour job. Justify any additional labor in the
claim. Caterpillar will pay full parts and labor per the Time
Requirement Guide for repair of damaged parts up to 300,000 miles
or 60 months. Use a .025" undersize Remanufactured crankshaft.
Locally reground crankshafts are not authorized. If customer
insists on a new crankshaft, the customer should pay the
difference between Remanufactured and upgrade to new charge. If
a .025" undersize Remanufactured crankshaft is not available,
Caterpillar will pay for the upgrade to new.
* Coverage under this Program ends at 300,000 miles if the customer has not
inspected and replaced the connecting rod bearings prior to that time. If
new bearings were installed between 250,000 and 300,000 miles, parts
warranty applies for the first year and then this Program will continue
according to the following table between 300,000 and 500,000 miles.
Mileage Caterpillar
Participation
300,000 - 310,000 100%
310,000 - 320,000 95%
320,000 - 330,000 90%
330,000 - 340,000 85%
340,000 - 350,000 80%
350,000 - 360,000 75%
360,000 - 370,000 70%
370,000 - 380,000 65%
380,000 - 390,000 60%
390,000 - 400,000 55%
400,000 - 410,000 50%
410,000 - 420,000 45%
420,000 - 430,000 40%
430,000 - 440,000 35%
440,000 - 450,000 30%
450,000 - 460,000 25%
460,000 - 470,000 20%
470,000 - 480,000 15%
480,000 - 490,000 10%
490,000 - 500,000 05%

Any parts removed (with the exception of cores used for Caterpillar
Remanufactured parts) can be rendered useless and scrapped immediately upon
completion of the repair.