GAUGE AS-OIL LEVEL (DIPSTICK) 8Y7730 - Caterpillar

SEBE7370-03 July 17, 2000
(Revised July 2001)
U-212
A-158
AU-126
S-95
H-69
O-184
Priority THE ENGINE CYLINDER BLOCKMAIN CAPS NEED TO BE INSPECTED ON CERTAIN 3508, 3512 AND 3516 GENERATORSET, INDUSTRIAL, MARINE, LOCOMOTIVE MARINE AUXILIARY AND VEHICULAR ENGINES
1201 PI30053
This Program must be administered assoon as possible. When reporting the repair, use "PI30053" as the Partnumber and "7751" as the Group Number, "56" as the Warranty Claim DescriptionCode and "T" as the SIMS Description Code. Exception: If the repair isdone after failure, use "PI30053" as the Part Number, "7751" as the GroupNumber, "96" as the Warranty Claim Description Code, and "Z" as the SIMSDescription Code. Please refer to PI30025 for the properinspection and rework procedure for 3500 machine engines. This Revised Service Letter replacesthe July 17, 2000 (Revised April 2001) Service Letter. Changes have beenmade to the Service Claim Allowances.
COMPLETION DATE
TERMINATION DATE
April 30,2001 November30, 2001PROBLEM
Main bearing caps may crack and need to be inspectedon certain 3508, 3512 and 3516 Engines. A process was omitted during themanufacturing of certain main caps used in 3500 engine cylinder block.Because of the omitted process, there is a chance that the main cap maycrack and cause the crank to operate unsupported. The unsupported operationof the crankshaft may cause the crankshaft to break and may cause an enginefailure.AFFECTED PRODUCT
***** Group 1 *****3508 5PW169, 171-179, 182-194, 200-206, 209-21023Z7243-7514, 7516-7592, 7594-7602, 7604-7605,7612-7620, 7622, 762470Z1012-10553LS199-2245XM23-3168Z1075-1131, 1135, 1137-114395Y1062-111969Z829-86496Y1860-1951, 1953-19613HM11-149WN11-143PS170-1963508B 2HW121-1354GM321-502, 504-510, 514-526, 528-534, 5366PN452-552, 554-593, 595-599, 601, 603, 6065KW 228, 246, 250-251, 253-256, 259-270, 272,274-276, 278-314, 316-319, 321-331, 334-335, 337-345, 347-375, 377-459,461-4735PS215-2551TW239-2522BM134-1447SM161-2903DM136-167, 1703DW151-15397Y727-732BAG2-5***** Group 2 *****3512 3WS33350Y1643-170766Z828-878, 880-8923RS313-3393512B 8EM309-323, 3252GW225-2424TN163-259, 263, 266, 268, 2697HM201-2132EZ215-2223512B M 1PW349-357 359***** Group 3 *****3516 8TW160-176, 186-1963XS404-4079AN155-1833SS298-32329Z1312-135472Z543-55627Z788-81171Z350-35825Z6112-6603, 6605-618, 6620-6659, 6661-6665,6667-6672, 6673, 6675, 6677-6687, 6691, 6694, 6701, 6714, 6724, 6726-6728,6732-6734, 6737-6739, 6741, 6743, 6747, 6748, 6751, 6753, 6754, 6756, 6758,67685SJ627-649, 652-714, 716-71873Z882-890, 892-893, 895-9343NS220-2407KM37-53, 55-713516B 8NW165, 169-176, 184, 190, 201, 204-2113CW232-2388CN166-1738KN277-369, 372-387, 391, 392, 3952FW167-186, 1884BW330-3379WF78-791NW117-1266HN264-292, 294-418, 420-526, 529, 531-533,535, 537, 539, 541-545, 547, 548, 550-553, 555, 556, 559-564, 567-579,581, 583-586, 588-596, 606, 6157RN652-694, 696-938, 940-1000, 1002-1045, 1048-1052,1054-1060, 1062-1064, 1068, 1071, 1072, 1074, 1075, 1077, 1079, 1081-1083,10862JW181-216DV098 3JS5-7DV099 2TS5-6E110B 9HF109-113 Any of the above listed engine models withany of the following cylinder blocks installed during a repair or at overhaulneed to be reworked.CYLINDER BLOCKS
1153503 Cylinder Block As. (Sequence No. 65A001To 94A999)
3512 1155154 Cylinder Block As. (Sequence No.65B001 To 94B999)3516 1155160 Cylinder Block As. (Sequence No.65C001 To 93C999) The block sequence number is locatedon the horizontal surface between cylinder #1 and the front housing.ENGINES AT OVERHAULEvery effort should be made to inspect andpeen all affected engines immediately. However, if any of the above listedengines have reached overhaul or do not have the 'D05' or 'R05' stamp duringoverhaul, these engines should be inspected for cracks and needle peenedduring the overhaul.PARTS NEEDED
* ? 169-4834