A 557386 Force DECAL, NUMERAL

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SAFETY - MODIFICATION NEEDED FOR FUEL LINES FOR PRESSURE AND FUEL FILTER DIFFERENTIAL PRESSURE GAUGES ON CERTAIN 3500 FAM ILY ENGINES - PI1075 - MAILED US AND CANADA, CACO, COFA, CFEL, COSA
  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.
MODIFICATION NEEDED FOR FUEL LINES FOR PRESSURE AND FUEL FILTER DIFFERENTIAL PRESSURE GAUGES ON CERTAIN 3500 FAMILY ENGINES, 1280, 7456, PI1075 U-50 A-16 AU-23 E-14 O-21 safety
Problem
On certain 3500 Family Engines the fuel lines for the fuel pressure and fuel filter differential gauges may not be adequately supported. After a period of time, the lines could break and leak fuel.
Affected Product
The Affected Product is separated into three categories based on the configuration of the fuel lines. Identification Number Category 1 - 2W8369, 2W8371 Lines Group 49Y499 50Y620, 624, 635, 638, 650, 651, 654, 657, 660, 665, 666, 673, 674, 676, 678, 689, 690, 699 95Y699 701 96Y697, 699, 702, 720, 724, 748, 749 24Z1439, 1452 29Z825, 831 66Z178, 187, 218 67Z565 69Z275, 276, 285, 288, 289, 291, 292, 294, 297, 303, 311, 312 72Z344 73Z152-154, 158-162 Category 2 - 2W8372, 4W5985, 4W6464, Lines Group 49Y483-485, 487-498, 502, 507, 511-513 50Y651, 680, 681, 700 95Y641-648, 651-654, 656, 658, 661-672, 675, 676, 681, 682, 684-694, 700 96Y708-712 23Z917-934, 936-941, 943, 945, 946, 948-956, 958-960, 962-990, 992-1010, 1013-1025, 1027-1042, 1045, 1050-1062, 1067, 1069, 1070, 1075-1077, 1084, 1086, 1088, 1093-1095, 1097, 1098, 1100, 1101, 1103, 1104, 1106, 1108-1110, 1113-1116, 1119-1122, 1130-1132, 1139, 1141, 1144, 1157, 1162, 1163, 1165, 1166, 1171, 1172, 1174, 1178-1182, 1184, 1186, 1188, 1189, 1191, 1201-1205, 1207, 1210, 1214-1216, 1218, 1224-1226, 1228-1232, 1235, 1247, 1249, 1254-1257, 1259, 1261, 1267, 1268, 1277, 1278, 1280, 1281, 1285, 1291-1293, 1295, 1297, 1299, 1300, 1306, 1315-1320, 1324, 1326, 1328, 1332, 1333, 1339-1341, 1344, 1354, 1359, 1361, 1363, 1365, 1368, 1371, 1374, 1378, 1380, 1384, 1387, 1396, 1398, 1399, 1401-1406, 1411, 1415, 1427, 1432, 1433, 1435, 1436, 1444, 1449, 1458, 1459, 1463 24Z1239-1245, 1247, 1248, 1250-1256, 1261, 1262, 1264, 1265, 1268-1294, 1297, 1300-1314, 1319, 1324, 1328-1330, 1332, 1333, 1335-1338, 1340, 1342, 1349-1352, 1358-1362, 1364, 1368, 1372, 1376, 1380, 1387, 1388, 1397, 1399, 1402-1412, 1415, 1416, 1418, 1425, 1427, 1428, 1442, 1443, 1446, 1447, 1453-1455, 1463, 1469, 1472, 1476, 1481, 1482, 1486, 1492, 1496, 1498, 1503, 1504, 1506, 1507, 1509-1518, 1527-1529, 1531, 1533, 1535, 1536, 1539-1544, 1547, 1548, 1550-1553, 1556, 1558, 1560-1562, 1564, 1565, 1568, 1570, 1571, 1573, 1581, 1583, 1584, 1586, 1587, 1590-1593, 1595, 1599, 1600, 1602-1611, 1614, 1616-1618, 1631, 1633-1635, 1641, 1645, 1648, 1649, 1651, 1653, 1655, 1656, 1658-1660, 1662-1667, 1672, 1673, 1682, 1687, 1689, 1691, 1694, 1706, 1707, 1710, 1713, 1723, 1724 25Z624-629, 631-639, 641, 642, 645-654, 656-659, 661-670, 673-678, 680, 681, 683, 694, 697-699, 705, 709-711, 713, 719-726, 733, 734, 736, 737, 739-742, 744, 746, 748, 751, 763-767, 773, 774, 777-779, 781, 782, 785-787, 790-792, 797, 799, 800, 806-811, 813-819, 822, 825, 826, 833-836, 839, 841, 845-847, 851-855, 859, 871, 875, 881 27Z645, 646, 650, 651, 654-659 29Z818-822, 826 65Z600, 601, 620, 621, 631, 637, 638 67Z527-532, 534-540, 543-545, 549-552, 556, 560-563, 566, 567 68Z685-687, 689-715, 720-729 69Z302 70Z581-596, 600, 601, 604 71Z237, 242-248 73Z157, 163, 164, 169-171, 180, 185, 190, 194, 204, 205 Category 3 - 2W8373, 4W5995, 4W6463, 7W3296 Lines Group 49Y486, 500, 501, 503-506 50Y613-615, 617-619, 621-623, 625-634, 636, 637, 639-649, 652, 653, 655, 656, 658, 659, 661-664, 667-672, 677, 679, 682-686, 691-695, 697, 702-706, 709-711 95Y638-640, 649, 650, 683, 695-698, 702 96Y671-687, 689-694, 696, 698, 700, 701, 703-706, 713-715, 718, 721, 727, 729-731, 736-739, 741-743, 745, 747, 750, 752, 753 23Z935, 942, 944, 947, 957, 961, 1011, 1012, 1048, 1068, 1073, 1136, 1137, 1154, 1183, 1194, 1195, 1238, 1245, 1251, 1252, 1264, 1265, 1272, 1284, 1288, 1289, 1341, 1391, 1394, 1430, 1439, 1441, 1446 24Z1246, 1249, 1257-1260, 1263, 1266, 1267, 1295, 1296, 1298, 1299, 1315, 1316, 1345, 1346, 1355, 1356, 1373, 1385, 1391, 1395, 1414, 1417, 1423, 1426, 1437, 1438, 1441, 1444, 1445, 1449, 1467, 1468, 1471, 1475, 1479, 1483, 1484, 1490, 1491, 1494, 1499, 1502, 1508, 1524, 1526, 1549, 1554, 1575, 1577, 1585, 1598, 1615, 1620, 1621, 1625-1628, 1632, 1637, 1642, 1643, 1646, 1647, 1650, 1654, 1661, 1696-1701 25Z623, 630, 640, 643, 644, 655, 660, 671, 672, 679, 700, 707, 708, 712, 728, 730-732, 738, 743, 745, 747, 749, 750, 752-762, 771, 775, 776, 783, 784, 789, 794, 798, 802, 804, 812, 823, 824, 829-831, 843, 850, 866, 869 27Z647-649, 652, 653 29Z816, 817, 823, 824, 827-830, 832, 833, 836, 840, 842 65Z602-613, 615-618, 622-627, 630 66Z173-177, 179, 180, 182-184, 188, 190-193, 195-197, 199-204, 206, 207, 209, 210, 212-215, 217 67Z526, 533, 541, 542, 546-548, 553, 559, 564 68Z688, 716-719, 730-734 69Z274, 277-284, 286, 293, 295, 299-301, 305-310, 313-316, 318-320 70Z597-599, 602, 603 71Z238-241, 249-252 72Z338-340, 342, 346 73Z150, 151, 155, 156, 165-168, 172-179, 181, 183, 184, 186-189, 191-193, 195-197, 199-203
Parts Needed
Dealers will need to order parts for this Program. Category 1 1 - 1D4717 Nut 1 - 5P1075 Washer 1 - 9M766 Bracket 2 - S1615 Bolt 2 - 5N9230 Clamp 1 - T573 Bolt 1 - 5P537 Washer Category 2 1 - 8L3161 Nut 1 - 8L3162 Sleeve 1 - 3N7281 Hose As. 1 - 5N9298 Clip 1 - 676495 Elbow 1 - *