PISTON-BRAKE 5I8621 - Caterpillar

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.
TERMINATION DATE
31May2013
PROBLEM
The existing 291-2156 Software may exhibit short term instability when the engine is operating in cold ambient temperatures and light load.
AFFECTED PRODUCT
Model Identification Number
C7 JTF02351, 2355, 2357, 3214, 3219, 3272, 5883-5884, 5889, 7546, 7595, 7607, 7663, 7690-7691, 8298, 8889, 9626, 10863, 11700, 11703, 12116, 12489, 12492-12493, 12924, 14078, 14084, 14090, 14093, 14455, 14681, 14692, 14697-14698, 15004, 15008-15010, 15018
PARTS NEEDED
Qty
Part Number Description
1 3770004 SOFTWARE GP-ELEK
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 20% of dealership population. This is an initial order recommendation only, and the ultimate responsibility for ordering the total number of parts needed to satisfy the program lies with the dealer.
ACTION REQUIRED
This Service Letter is only applicable to C7 Industrial Engines that are installed in M-B Companies Snow Brooms.
If the engine is exhibiting instability contingent to the particular conditions as mentioned in the Problem, update the ECM with 377-0004 Software.
Refer to the Service Manual is/as necessary.
SERVICE CLAIM ALLOWANCES
Product smu/age whichever comes first Caterpillar Dealer Suggested Customer Suggested
Parts % Labor Hrs% Parts % Labor Hrs% Parts % Labor Hrs%
0-10000 hrs,
0-72 mo 100.0% 100.0% 0.0% 0.0% 0.0% 0.0%
This is a 0.6-hour job
PARTS DISPOSITION
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.