Usage:
07Apr2015 |
Before/After | PRODUCT SUPPORT PROGRAM FOR REWORKING THE COMPONENTS OF 359-4672 DELIMBER MANIFOLD ON CERTAIN C-SERIES KNUCKLEBOOM LOADERS |
|
5051 | PS44689 |
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 must be administered either before or after failure. In either case the decision whether to apply the Program is made by the dealer. When reporting the repair, use "PS44689" as the Part Number and "7755" as the Group Number. If administered before failure, use "56" as the Warranty Claim Description Code and "T" as the SIMS Description code. If administered after failure, use "96" as the Warranty Claim Description Code, and "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 |
30Apr2018 |
PROBLEM
The existing components of the delimber manifold can work loose and leak externally on certain C-Series Knuckleboom Loaders. If the existing components loosen and leak it may cause excess hydraulic fluid loss and unexpected downtime. |
AFFECTED PRODUCT
Model | Identification Number |
2384C | KAW00251-00317 KB600300-00349 |
2484C | KAZ00251-00263 KB700300-00308 |
559C | KAS00250-00396, 398-548 KB400100-00233 |
579C | KAX00250-00294 KB500101-00122 |
PARTS NEEDED
No parts needed for this program |
ACTION REQUIRED
If any components in the delimber manifold are leaking, replace the seals first and re-install using the new tightening specification values for the defined components. Adjust the tightening of all 273-6499 Check Valves to a specified torque of 129-143 ft/lbs. The tightening specification has also increased on the 390-8664 Logic Valves and 390-8660 Relief Valves to 100-110 ft/lbs. Ensure that the tightening specification is adjusted on all these components when visiting the machines, and not just the components that are leaking. |
SERVICE CLAIM ALLOWANCES
0-36 mo |
NOTE: This is a 2.0-hour job | ||||||
PARTS DISPOSITION
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling. |