Usage:
| 08Dec2016 |
| (Revised 29Mar2017) |
E253
T210
| Before/After (Limited distribution) Parts stock action needed | PRODUCT SUPPORT PROGRAM FOR REPLACING CYLINDER HEAD BOLTS ON CERTAIN 3500 ENGINES |
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| 1100 7750 | PS45319 |
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| 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 "PS45319" 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: | When submitting claim for Parts Stock Action, Use the appropriate 99Z as the s/n, the appropriate Service Letter Program Number as the Part number in the Part Causing Failure field, "7755" as the Group Number, "56" as the Description Code. |
| NOTE: | Although this Program is to be administered as described above on the Affected Product, parts should be removed from parts stock as soon as possible. |
| 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. |
| NOTE: | This Revised Service Letter replaces the 08Dec2016 Service Letter. Changes have been made to the Title, Affected Product, and Action Required. |
TERMINATION DATE |
| 31Dec2018 |
PROBLEM
| NPR incorrectly directed dealers to use 124-8154 head bolt in place of 7N-1961 bolt in 3500 engines. The 124-1854 bolt is not validated for use in 3500 engines, and will need to be removed and replaced with correct parts if installed in a 3500 engine. |
AFFECTED PRODUCT
| Model | Identification Number |
| 5230B | 4HZ00231 |
| 793D | FDB01204 |
PARTS NEEDED
Qty |
Part Number | Description |
| 128 | 7N1961 | BOLT-12 POINT HD (if/as needed) |
| 16 | 4421340 | KIT-GASKET (SCH) (if/as needed) |
| 16 | 4639257 | KIT-GASKET (SCH) (if/as needed) |
| 128 | 4649191 | BOLT-12 POINT HD (if/as needed) |
| In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 29% 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. |
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ACTION REQUIRED
Rework 3516 Engine Arrangement 235-0300 with the Serial Number 8WM02540 and Engine Arrangement 100-6339 with the Serial Number 7TR01176 in dealer parts stock and/or dealer exchange inventory which was built with 124-1854 cylinder head bolts. If the engine has been operated on a dyno, the heads will have to be removed and resealed during bolt replacement. If the engine has not been operated, the head bolts can be loosened, replace all 124-1854 bolts with 7N-1961 bolts, and retorque the heads. Refer to the service publications for your specific engine for complete instructions. |
| NOTE: Dealer part and service invoices may help identify 3500 engines. Inspect head bolts and replace any 124-1854 head bolts which have been installed. Refer to Image 1 for 124-1854 bolt head identification these bolts can be identified by the letters "AF" on the head. Refer to Image 2 for 7N-1961 or 464-9191 bolts. These bolts can be identified by "F-C" on the head. The valve covers will need to be removed to inspect all bolt heads. The Affected Product applies only if the Off Highway Truck or Excavator is equipped with Engine Serial Number 8WM02540 or 7TR01176 which was built with 124-1854 cylinder head bolts. Replace all 124-1854 bolts with 7N-1961 bolts, reseal, and retorque the heads. Refer to the service publications for your specific engine for complete instructions. |
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| Image1 |
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| Image2 |
SERVICE CLAIM ALLOWANCES
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Submit one claim for the engine reworked in dealer parts stock and/or dealer exchange inventory. |
0-24 mo |
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| NOTE: This is a 96.0-hour job | ||||||
| Dealers may use either 464-9191 Bolts or 7N-1961 Bolts, and 463- 9257 Kits or 442-1340 Kits for this repair. Include the engine serial number in the claim. |
PARTS DISPOSITION
| Handle the parts in accordance with your Warranty Bulletin on warranty parts handling. |
| Handle the parts in accordance with your Warranty Bulletin on warranty parts handling. |