PISTON AS 1453033 - 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
31Oct2018
PROBLEM
The existing stick assembly has a potential risk to fail on certain 390F Excavators. If the existing stick assembly has a welding defect, it can have a welding crack.
AFFECTED PRODUCT
Model Identification Number
390F HSM00284-00285, 287, 289-295, 298, 300
TYE00132-00165
390F L MGF00156, 160-161, 229, 235, 241
PARTS NEEDED
Qty
Part Number Description
1 4410048 STICK AS-BRG
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 6% 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
Replace the failed stick assembly with new 441-0048 Stick Assembly. Refer to UENR0165, Disassembly and Assembly, 390F Excavator Machine Systems, "Stick - Remove and Install", in order to complete this Rework Procedure.
SERVICE CLAIM ALLOWANCES
Product smu/age whichever comes first Caterpillar Dealer Suggested Customer Suggested
Parts % Labor Hrs% Parts % Labor Hrs% Parts % Labor Hrs%
0-6000 hrs,
0-24 mo 100.0% 100.0% 0.0% 0.0% 0.0% 0.0%
6001-8000 hrs,
25-36 mo 33.0% 50.0% 0.0% 0.0% 50.0% 50.0%
This is a 16.0-hour job
PARTS DISPOSITION
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.