893691T Mercury COVER, Exhaust

20Jun2017
R150
R461
Containment -
After Failure Only
(Limited distribution)
PRODUCT SUPPORT PROGRAM FOR REPLACING THE CYLINDER PACKS ON CERTAIN 793D OFF-HIGHWAY TRUCKS EQUIPPED WITH 3516HD ENGINES
1201 1225 1216 1239 1290 1214 1213 1331 7777 PS61358
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.
This Containment Program can only be administered after a failure occurs.The decision whether to apply the Program is made by the dealer and service rep. Obtain the service reps Goodwill Approver Code before completing the repair. EAME dealers should use their standard Industry Group specific goodwill approval codes. The Goodwill Approver Code must be included when submitting the claim.
When reporting the repair, use "PS61358" as the Part Number and "7777" as the Group Number. Use "96" as Warranty Claim Description Code and use "Z" as the SIMS Description Code.
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
30Jun2019
PROBLEM
In high load conditions, certain single piece forged steel pistons used in the Single Piece Cylinder System may develop hard deposits at the top land of the piston.
If severe enough, deposits may wear the liner crosshatch, compromising oil control and contributing to additional deposit formation, wear, and blowby.
AFFECTED PRODUCT
Model Identification Number
793D FDB01261-01262, 1266-1271, 1303-1305, 1310-1311, 1313, 1315-1316, 1318-1319, 1321-1322, 1380-1384, 1387-1388, 1391-1395, 1412-1415, 1455-1457, 1465, 1467, 1469-1470, 1500, 1548-1549, 1563-1564, 1568, 1570, 1572, 1577, 1579, 1584-1585, 1648-1651, 1654-1658, 1670-1671, 1677, 1732, 1744-1747, 1757-1758, 1760, 1762-1763, 1771-1774, 1777-1779, 1783-1789, 1792-1795, 1806-1815, 1824-1826, 1829-1831
PARTS NEEDED
Qty
Part Number Description
1 10R9224 CYLINDER PACK AS
1 2302520 BEARING-CONN ROD (If Required)
1 4421340 KIT-GASKET (SCH)
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 14% 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 program provides in chassis support for replacing up to 2 cylinder packs simultaneously, single piece forged pistons. If more than 3 cylinder packs require replacing, or if this Service Letter has been applied, please use out of chassis
repair option.
One set of connecting rod bearings is allowed per cylinder pack, if required.
Refer to Disassembly and Assembly, SENR1126, "3500 and 3500B High Displacement Engines for Caterpillar Built Machines".
The following conditions must be met in order to claim this service letter. Attach supporting documentation to the claim that demonstrates:
Condition 1: Air Intake System Cleanliness
Customer must demonstrate that silicon levels have been maintained at or below 9 PPM by producing archived SOS reports. This program DOES NOT support engines affected by dust, dirt or debris ingress due to a faulty or compromised air intake system.
Condition 2: Excessive Crankcase Blowby
Customer must demonstrate that the engine is generating excessive blowby according to REHS7857, Special Instruction, "Testing for Excessive Cylinder Blowby in 3500 Engines". Some amount of blowby is generated by every engine and the amount of blowby typical