35474 Mariner COVER, LOWER MOUNT CLAMP

09Nov2017
(Revised 10Oct2018)
U-620
D-522
O-517
Before/After
PRODUCT SUPPORT PROGRAM FOR REROUTING THE DEF LINE, REPLACING THE DEF INJECTOR IF FAILED, AND FOR REFLASHING THE ENGINE SOFTWARE ON CERTAIN 926M, 930M, AND 938M WHEEL LOADERS
1920 108I 108K 1091 PS45681
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 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 "PS45681" 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.
This Revised Service Letter replaces the 09Nov2017 Service Letter. Changes have been made to the Parts Needed.
TERMINATION DATE
30Nov2019
PROBLEM
The DEF line to the DEF injector needs to be replaced on certain 926M, 930M, and 938M Wheel Loaders. The existing DEF line routing can lead to DEF injector plugging that can lead to partial or full blockage of DEF flow.
The updated engine software provides improvements for BPV control, DEF level strategy, DEF quality sensor strategy, DEF injector strategy and SCR storage model, and ether injection quantity.
AFFECTED PRODUCT
Model Identification Number
926M LTE00250, 253-254, 261, 270, 273, 276, 278, 282, 286, 293, 295-297, 299, 306, 310, 312-313, 321, 330, 335-336, 344, 346, 348, 354, 356-357, 359-360, 364, 372, 374, 378, 387, 391-393, 395, 402, 407, 419-420, 427, 449, 464, 471, 480, 488, 494, 504, 510, 533, 554, 558, 562, 572, 577, 579, 583, 589, 591, 594, 597, 600, 602-603, 608, 613, 615, 617, 620, 633, 639, 646, 649-650, 654, 661-662, 666, 670-671, 673-674, 678, 689, 697-698, 706, 714, 721, 727, 765, 805, 811, 814, 826-827, 832, 836, 844, 847, 860, 897-898, 910, 923, 947, 981, 990, 993, 1008, 1014, 1020, 1023, 1052, 1055, 1094, 1110, 1123, 1128, 1133, 1139, 1142, 1179, 1182, 1197, 1204, 1207, 1217, 1222, 1227, 1235, 1251, 1927, 1936, 1938, 1946-1947, 1949, 1966, 1970, 1972, 1999, 2004, 2008-2009, 2013, 2028, 2033, 2049, 2056, 2071-2072, 2074, 2089, 2098, 2107, 2109-2110, 2118, 2120, 2123-2124, 2134, 2138, 2147, 2156, 2159, 2165-2166, 2187, 2215, 2220, 2225, 2244, 2270, 2291, 2307, 2330, 2336-2337, 2345, 2360, 2388, 2397, 2402, 2412, 2416, 2431, 2434, 2443, 2484, 2518, 2527, 2553, 2559, 2561, 2576, 2582-2584, 2589, 2595, 2606, 2638, 2664, 2681, 2697, 2717, 2728, 2782, 2785, 2814, 2818, 2835, 2869, 2884, 2932, 2938, 3005, 3011
930M KTG00351, 360, 366, 375, 383, 385, 390, 392, 394, 396, 410, 412, 418, 429, 431, 436, 440, 450, 455, 471, 473, 478, 497-498, 500, 511-512, 525, 529, 532-533, 535, 539, 542, 567, 576, 579, 585, 598, 610, 612, 616, 618, 622, 624, 629, 653, 657, 659, 691, 706, 713, 760, 764, 770, 782, 791, 793, 798, 804, 809, 813, 855, 865, 869, 879, 887, 889, 891-892, 899-900, 903, 918, 928, 934, 975, 978, 998, 1000, 1004, 1010, 1016, 1030, 1049, 1077, 1088-1089, 1117, 1613, 1615-1616, 1618, 1620, 1627, 1630-1631, 1637, 1644, 1651, 1674, 1683, 1686, 1690, 1710, 1715, 1737, 1739, 1744, 1753, 1773, 1810, 1812, 1835, 1840, 1881-1882, 1885, 1895, 1924, 1960, 2011, 2020, 2048, 2051, 2056, 2107, 2138, 2181, 2194, 2219, 2245, 2255, 2266, 3034, 3140, 3457
930M OEM WLF00101
938M J3R00452, 454, 458, 462, 473, 476, 488, 494, 503, 514, 526, 530, 533, 536-537, 548, 552, 555, 557-558, 560-562, 573-574, 581, 586, 588, 601, 620, 623, 635, 638, 652, 657, 660, 662, 665, 671, 674, 683, 690-691, 694, 700, 702, 716-717, 722, 729, 731, 734, 740, 742, 756, 772-773, 799, 804, 811, 815, 820, 823, 828, 837, 841, 848, 850, 861-864, 870, 872, 891, 894, 905, 930, 947, 952-953, 961, 971, 977, 987, 1002, 1005, 1009, 1026, 1030, 1032, 1035-1036, 1052, 1110, 1112, 1114, 1126-1127, 1140-1141, 1149, 1180, 1182, 1185, 1194, 1196, 1200, 1202-1203, 1205, 1217, 1724-1725, 1734, 1745, 1756, 1759, 1771-1772, 1777, 1782, 1794-1795, 1800, 1815, 1823, 1837, 1850, 1853, 1889, 1902, 1934, 1941, 1945, 1956-1957, 1977, 2005, 2009, 2014, 2035, 2066, 2075, 2104, 2113, 2127, 2134, 2136, 2138, 2145, 2151, 2153, 2181, 2188-2191, 2212, 2215, 2287, 2331, 2353, 2365, 2369, 2397, 2403, 2411, 2415, 2419, 2422, 2431, 2435, 2451, 2470, 2532, 2580, 2583, 2587, 2597, 2600, 2658,