20405765 Volvo.Penta Hexagon nut

05Sep2008
U-454
D-375
O-414
Before/After
PRODUCT SUPPORT PROGRAM FOR REWORKING THE ENGINE HARNESS ON CERTAIN D6N TRACK-TYPE TRACTORS EQUIPPED WITH ACCUGRADE
1408 PS42784
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 "PS42784" as the Part Numberand "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.
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
30Sep2009
PROBLEM
Certain D6N Track-Type Tractors equipped with AccuGrade Ready Option (ARO) have the AccuGrade CAN lines (wire IDs L854 and L855) connected to the engine Electronic Control Module (ECM) at J1:20 and J1:21. This connection causes the engine RPM to drop when the CD700 display starts as a result of overloaded CAN data traffic.
AFFECTED PRODUCT
Model Identification Number
D6N LGP DJY00121, 123-124, 130, 133, 137, 143, 155, 158, 162, 165, 167, 173, 176, 180, 191, 197, 200, 202, 206, 219-222, 225-226, 231, 233, 242, 245, 249-250, 252, 255, 257-259, 262, 270, 274-276, 283, 286, 288, 290, 293, 297, 301, 307-308, 316-317, 327, 339, 346, 348, 351-352, 357, 360, 362, 369, 373-375, 382, 385, 387, 391, 393-394, 397, 414, 416, 418-420, 426, 429, 432, 443-444, 446-448, 453, 456-457, 459, 462-463, 467-468, 470, 473, 481, 484-485, 490, 496, 498, 500-502, 504, 507, 512, 515, 517-519, 521, 527-528, 532, 537, 541, 543, 546-548, 550, 558, 562, 565, 567, 574, 584, 597, 633-634, 643, 648, 658, 668, 672, 678, 680, 682-685, 687, 690-692, 695-696, 698, 700, 702, 705-706, 709-710, 717, 719, 723, 725, 730-731, 736, 741-742, 745-746, 751-752, 759, 764-765, 769, 774, 777, 779, 789, 798-800, 803, 807, 820, 822, 826, 839-840, 845-846, 860, 862, 869, 889, 897, 905, 910, 914, 921, 927, 937, 942, 951, 956, 959, 964, 975, 977, 979-981, 984-985, 987, 989, 997-1000, 1006, 1012, 1027, 1032, 1037-1039, 1041, 1043-1044, 1061, 1067, 1072, 1077, 1082, 1084, 1095, 1098, 1107, 1114, 1120, 1123, 1127, 1133-1135, 1139, 1141, 1143, 1146, 1150, 1156-1157, 1166-1167, 1177, 1183, 1186, 1190, 1197, 1227-1228, 1233, 1237-1238, 1240, 1248-1249, 1253, 1256, 1260, 1272, 1275, 1288-1289, 1297, 1312, 1314-1315, 1324, 1328, 1334-1336, 1340, 1343, 1348-1349, 1354, 1357, 1362, 1364, 1367, 1375, 1377-1378, 1380, 1401
D6N XL DJA00232-00235, 240, 248, 264, 267, 273, 275, 278, 288, 312, 315, 319, 321, 325, 333, 339, 342-343, 367, 382-385, 389, 392-393, 395, 401, 403, 405, 407, 409, 413-415, 420, 425, 436, 439, 441, 460, 472, 487, 492-493, 495, 497-499, 503, 506-507, 521, 525, 528, 530, 538-539, 547, 550, 557, 560, 564, 567, 578, 580, 583, 604, 608-609, 633, 636, 641-642, 648, 665, 676, 703, 713, 720-722, 732, 741, 752, 757-758, 761, 772, 775-777, 796, 799, 808, 819, 823-825, 827-830, 834, 838, 840-841, 844, 846, 852-853, 857, 886, 893, 902-903, 907, 910, 913-914, 918-919, 922-923, 925-926, 929, 932, 972, 974
PARTS NEEDED
Qty
Part Number Description
4 8T8737 PLUG-SEAL
1 1028802 RECEPTACLE KIT
1 1552270 PLUG KIT-CONN
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 9% 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
Remove CAN wires L854 and L855 from the platform/engine harness connector. Refer to the attached Rework Procedure.
SERVICE CLAIM ALLOWANCES