Usage:
07May2019 |
After Failure Only | PRODUCT SUPPORT PROGRAM FOR REPLACING THE 2577730/">257-7730 POPPET KIT ON CERTAIN 450E AND 450F BACKHOE LOADERS |
|
5051 | PS54050 |
NOTE: | Caterpillar’s obligations under this Service Letter are subject to, and shall not apply in contravention of, the laws, rules, regulations, directives, ordinances, orders, or statutes of the United States, or of any other applicable jurisdiction, without recourse or liability with respect to Caterpillar. |
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 "PS54050" 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. |
NOTE: | 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 |
31May2021 |
PROBLEM
The existing 2577730/">257-7730 Poppet Kit can fail on certain 450E and 450F Backhoe Loaders. If the existing 2577730/">257-7730 Poppet Kit fails, it can come apart and the washer or ball can enter the hydraulic system and damage other hydraulic components. |
AFFECTED PRODUCT
Model | Identification Number |
450E | LYR00150-00159, 163-166 |
450F | HJR00150-00168, 171-177, 180-188, 193-199, 205-210, 213, 222-252, 254-289, 295-321, 325-342, 346-360, 362, 366-373, 376-380, 382, 384-398, 400-413, 422-433, 440-446, 450-476, 478-479, 481-486, 495-498, 500-503, 506-528, 533-539, 541-542, 545-556, 558-584, 593, 595-612, 620-629, 633-637, 642-643, 645-654, 656-657, 662-673, 684-699, 701-710, 717, 719-720, 722, 724, 726-728, 730, 734, 737-741, 743, 746-794, 796, 798, 800, 813, 816-830 |
PARTS NEEDED
Qty |
Part Number | Description |
1 | 2577730 | KIT-POPPET |
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 2% 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 program is for poppets that come apart, and does not cover machines that have the incorrect length pin installed. Replace the existing 2577730/">257-7730 Poppet Kit with a new 2577730/">257-7730 Poppet Kit. Refer to REHS4013, Special Instruction, "Replacing the Pin in a Poppet Valve with a New Pin on Certain Backhoe Loaders", for installation instructions for replacing the poppet kit. Refer to Images1 and 2. A - Location A B - Ball C - Spring D - Washer E - Spring F - Location F 1. Install ball (B) in location (A). 2. Install spring (C) on top of ball (B). 3. Install washer (D) over spring (C). 4. Rest spring (E) on washer (D). 5. Install the end of spring (E) in location (F). |
Image1 |
Image2 |
SERVICE CLAIM ALLOWANCES
0-48 mo |
NOTE: This is a 2.0-hour job | ||||||
PARTS DISPOSITION
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling. |