HOSE AS-OIL SUPPLY 1876294 - Caterpillar

This Program must be administered as soon as possible. When reporting the repair, use "PI3379" as the Part number and "7751" as the Group Number, "56" as the Warranty Claim Description Code and "T" as the SIMS Description Code. Exception: If the repair is done after failure, use "PI3379" as the Part Number, "7751" as the Group Number, "96" as the Warranty Claim Description Code, and "Z" as the SIMS Description Code.
Completion Date
November 30, 2000Termination Date
May 31, 2001Problem
The 4th pedal circuit needs to be modified on certain 320B, 322B, 325B, 330B and 345B Excavators. When the auxiliary backup switch is placed in the manual/backup position, the auxiliary controller is disabled. When the auxiliary controller is disconnected, the entire auxiliary system should be disabled. With the current configuration of components, the auxiliary control pedal (Illustration 1) is still active. In the current configuration, if the auxiliary controller is disconnected and the 4th pedal is pressed, full hydraulic flow will enter the auxiliary implement tool circuit. The full hydraulic flow may cause extreme damage to the tool.
Affected Product
Model & Identification Number
320B (1XS810-)
320BL (7JR1009, 7JR1031, 7JR1045-1047, 7JR1096, 7JR1099, 7JR1107, 7JR1119, 7JR1133, 7JR1157, 7JR1161, 7JR1186-1187, 7JR1219, 7JR1226, 7JR1231, 7JR1235, 7JR1239, 7JR1241, 7JR1243, 7JR1245, 7JR1249, 7JR1269, 7JR1277-1278, 7JR1280, 7JR1282-1283, 7JR1291, 7JR1293, 7JR1341, 7JR1346, 7JR1356, 7JR1361, 7JR1363, 7JR1369, 7JR1400, 7JR1425, 7JR1427, 7JR1446, 7JR1450, 7JR1459, 7JR1471, 7JR1476, 7JR1480-1481, 7JR1483, 7JR1494, 7JR1496, 7JR1506, 7JR1508, 7JR1510, 7JR1512, 7JR1538, 7JR1547, 7JR1558, 7JR1563, 7JR1568-1581, 7JR1586-1594, 7JR1596, 7JR1598, 7JR1600, 7JR1605, 7JR1626, 7JR1628, 7JR1631, 7JR1633, 7JR1636, 7JR1640, 7JR1648-1649, 7JR1653-1659, 7JR1663, 7JR1665, 7JR1667-1669, 7JR1671-1672, 7JR1674, 7JR1676, 7JR1693, 7JR1695-1698, 7JR1704, 7JR1714, 7JR1739-1740, 7JR1743, 7JR1747, 7JR1754, 7JR1760, 7JR1767, 7JR1772, 7JR1777, 7JR1800-1803, 7JR1816, 7JR1833, 7JR1838, 7JR1843, 7JR1847, 7JR1849, 7JR1852, 7JR1854-1855, 9WS183)
320BS (5MS347, 5MS372, 5MS376, 5MS438, 5MS446, 5MS477, 5MS496, 5MS512, 5MS524)
320BLN (3YZ533, 3YZ648, 3YZ669)
322BL (2ES604, 2ES638, 2ES668, 2ES685-686, 2ES694, 2ES696, 2ES802)
322BLN (1ZS268, 1ZS290, 1ZS310, 1ZS318, 1ZS321, 1ZS, 1ZS323, 1ZS327, 1ZS337-338, 1ZS341, 1ZS352, 1ZS356, 1ZS361, 1ZS365-366, 1ZS388, 1ZS401, 1ZS409, 1ZS427-428, 1ZS430, 1ZS432, 1ZS470)
325BLN (8FN578, 8FN615, 8FN632, 8FN650, 8FN670, 8FN686, 8FN723, 8FN750, 8FN767, 8FN796-801, 8FN803, 8FN827-831, 8FN833, 8FN835, 8FN837-838, 8FN856, 8FN858-859, 8FN861, 8FN864, 8FN866, 8FN868, 8FN871, 8FN875-877, 8FN888, 8FN932, 8FN959, 8FN974)
325BL (6DN809, 6DN879, 6DN913-914, 6DN922, 6DN930, 6DN937, 6DN957, 4DS165, 4DS171-172, 4DS175, 4DS177-181, 4DS183-184, 4DS187-188, 4DS188, 4DS194-196, 4DS192, 4DS198-202, 4DS204, 4DS206-208, 5BS225)
330BL (3YR682, 3YR684, 3YR704, 3YR711-712, 3YR727, 3YR730, 3YR762, 3YR775, 3YR792, 3YR812-813, 3YR821, 3YR824-825, 3YR852-855, 3YR867, 3YR869, 3YR888-889)
330BLN (5LR456, 5LR465, 5LR, 5LR471, 5LR, 5LR, 5LR500, 5LR503-506, 5LR525, 5LR542, 5LR544, 5LR551, 5LR553-554, 5LR556-557, 5LR559, 5LR561, 5LR571, 5LR623-625, 4RS369-370, 4RS372, 4RS377-378, 4RS382, 4RS386, 4RS390, 4RS392, 4RS397-399, 4RS401, 4RS405-408, 4RS411, 4RS414, 4RS417-418, 4RS422, 4RS424, 4RS427, 4RS430, 5LS214, 5LS216, 5LS218, 5LS225)
345B (7KS167, 7KS169, 7KS207, 7KS250, 7KS341, 7KS415, 7KS430-431, 7KS452, 7KS455, 7KS458, 7KS467, 7KS481, 7KS485, 7KS495, 7KS502, 7KS513)
345BHD (2SW99-100, 2SW111-112, 2SW114-116, 2SW118, 2SW123-124, 2SW126, 2SW128, 2SW130)
Parts Needed
3 - 3J1907 Seal1 - 4I0818 Hose Assembly1 - 4I1688 Hose Assembly1 - 5I8825 Hose Assembly2 - 5C9553 Bolt5 - 6V8397 Seal1 - 6V8636 Connector2 - 6V8724 Elbow1 - 6V9843 Tee2 - 8T4121 Washer2 - 8T4133 Nut2 - 8T4195 Bolt2 - 9X8256 Washer1 - 1216303 Valve - Solenoid1 - 1712714 BracketAction Required
See the attached procedure.
Owner Notification
U.S. and