56500 Mercury SCREW, CYLINDER BLOCK COVER MOUNTING (1 1/4")

12Jul2013
U-306
A-210
D-261
O-259
After Failure Only
PRODUCT SUPPORT PROGRAM FOR UPDATING THE ENGINE SOFTWARE ON CERTAIN D6T TRACK-TYPE TRACTORS
1902 7620 PS52481
This Program can only be administered after a failure occurs.The decision whether to apply the Program is made by the dealer. When reporting the repair, use "PS52481" as the Part Numberand "7755" as the Group Number. Use "96" as the 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
31Jul2015
PROBLEM
Low power may be exhibited in some applications and load conditions on certain D6T Track-Type Tractors. A new engine rating electronic software group is available. This new engine software adjusts the fuel delivery in the 1500 through 1800 rpm band to increase engine power.
AFFECTED PRODUCT
Model Identification Number
D6T LGP JRW00151-00160, 165-167, 170-171, 173-174, 178, 180-181, 183, 186-190, 192-201, 203, 205, 207, 227
ZJB00002, 151-153, 155-158, 161-162, 164-166, 169-170, 173, 175-178, 180-182, 185-190, 193, 195-197, 201-202, 204, 207-208, 213, 215, 217-218, 220-222, 224, 226-227, 230-232, 236-237, 240-247, 253, 255-265, 269, 274-277, 281-282, 285-288, 291-301, 303-309, 312-313, 316-322, 324, 327-330, 333-337, 340-341, 348, 350, 353, 355-356, 358-359, 362-364, 366-367, 369, 372-375, 377, 381, 384-385, 390-393, 395-397, 399, 401-404, 406-408, 410-411, 416-428, 430-431, 434, 436-438, 445, 447-448, 453-455, 461-465, 468, 471, 473-478, 480-485, 487-488, 490-491, 494-496, 500-501, 503, 505-510, 512, 515-518, 521, 523, 527, 529-530, 532, 534-535, 537, 539-540, 544-545, 548-550, 552-560, 569-574, 1050-1060, 1062-1064, 1066-1070, 1072-1073, 1075-1079, 1082, 1084-1090, 1092, 1095-1096, 1098-1103, 1106, 1108, 1111-1118, 1120-1122, 1124-1125, 1141, 1193
D6T LGP OEM PLR00100-00102, 104-145, 500-511, 513-522, 532-535
D6T LGP PAT EJJ00225-00230, 233-235, 237
KSB00225-00226, 232, 234-235, 240, 250-251, 253-254, 257, 264-266, 268, 272, 274-275, 280, 282-285, 287-288, 296, 298-300, 307-308, 315, 321, 323-324, 327, 330-331, 336, 340-341, 346, 350-354, 357, 360, 364, 368, 370, 373-374, 376-377, 379, 382, 390, 393, 396, 398, 400, 405-407, 409-411, 415-417, 420, 424-425, 431, 436, 438-441, 443-445, 447-451, 453, 467, 473-474, 477, 480, 483, 485-487, 489-490, 493, 495-497, 499, 503, 505-506, 515-519, 521-525, 527, 529, 1125-1128, 1130-1139, 1141, 1193, 1195-1198, 1202-1203, 1206, 1210-1213, 1215, 1227-1229, 1231-1236, 1238
D6T XL GMK00001, 100, 102-105, 108, 110, 112-113, 115-121, 123-125, 127-128, 132, 134-136, 138-142, 144-150, 152-155, 159-160, 162-163, 165-168, 170-171, 173-175, 177, 179-183, 186-187, 189-193, 195, 197, 199-201, 203, 205-214, 216-234, 237, 240, 243-248, 250-251, 253-256, 262, 264, 266, 268, 270, 272, 274-281, 283-288, 290, 292, 294, 296, 299, 301, 303-304, 307-308, 310-315, 318-319, 321, 324-330, 332-336, 339-345, 350-354, 357-358, 360, 362, 367-374, 379-380, 383-384, 388-389, 393-394, 396-397, 400, 402-405, 409-414, 416-417, 420, 422-423, 425-430, 433, 435-438, 441-444, 446-449, 452, 455, 457, 460-464, 466-467, 470, 472-473, 475, 478-479, 484-485, 487-488, 491-494, 496, 498-501, 503-509, 511-515, 518, 522-526, 528-534, 536, 538-541, 543, 545-547, 550-557, 559-561, 563-569, 571-586, 588-599, 601-607, 609-611, 613-617, 620-625, 627-630, 633, 635-639, 641-643, 645-647, 651, 654-656, 658-660, 662-681, 683, 686, 688-690, 693-703, 705-708, 710-713, 715-733, 737-744, 748-754, 756-778, 780-785, 787-811, 1000-1012, 1014-1017, 1020-1022, 1024-1028, 1030-1076, 1078-1079, 1081-1084, 1086-1087, 1090, 1092-1096, 1098-1102, 1105-1110, 1112-1113, 1141, 1152
TSM00100-00108, 110, 113-129, 131-150, 152-193, 200
D6T XL PAT DTD00175-00178, 182-186, 188, 190-191, 193, 199-203, 207, 209, 211-214, 216-218, 221, 224-227, 235-237, 240-241, 245-250, 253-255, 257, 259-260, 262-263, 266-268, 273-275, 277, 1077-1094, 1097-1118, 1121-1130
D6T XW SLJ00125-00130, 132, 134, 136-143, 145-155, 157-161, 163, 167-169, 171-173, 177-178, 181, 184, 186-187, 190, 192, 194-196, 198, 200-201, 203, 205-216, 219-220, 222-228, 230-231, 233-234, 237-246, 248-252, 254-255, 257-260, 262-263, 266-272, 274-283, 285-289, 292-293, 295-300, 302-303, 305-317, 319, 321-322, 325, 327-330, 332, 335-346, 348-351, 353, 355-360, 362, 364, 366-370, 372-373, 375-378, 381, 383, 1025-1026, 1028-1034, 1036, 1038-1042, 1045-1046, 1049-1051, 1053-1064, 1093
WLM00125-00127