LINES GP-BUCKET CYLINDER 3794595 - 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 software can exhibit low load instability on certain C18 Industrial Engines in a Locomotive Generator Set application that are operating at 1800 RPM (60Hz).
AFFECTED PRODUCT
Model Identification Number
C18 WJH04706, 4712, 4714, 4717-4718, 4722, 6164-6165, 6169, 6313-6315, 6320-6321, 6325, 6327, 6329-6330, 6332, 7023, 7026, 7028, 7367-7376, 7378-7380, 7382, 7384, 7387-7388, 7469-7470, 7472, 7474-7475, 7566-7573, 7577, 7579, 8399, 8415, 8621
PARTS NEEDED
Qty
Part Number Description
1 3948205 SOFTWARE GP-ELEK
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 22% 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
If engine speed instability at low load is experienced, update the engine ECM with the new software.
Refer to the Service Manual if/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%
0-12000 hrs,
0-72 mo 100.0% 100.0% 0.0% 0.0% 0.0% 0.0%
This is a 1.0-hour job
If there has been a previous repair, part age/hours will apply. Retain a copy of the previous repair invoice in the dealer's records for audit purposes, and specify repair date and machine hours in the "Additional Comments" section of the warranty claim.
PARTS DISPOSITION
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.