INSULATION 1702728 - Caterpillar

Problem
In some applications the charge system relief valve on 12G and 140G AWD Motorgraders may not control flow surge pressure spikes as well as desired. Surge pressure spikes may cause a cracked filter housing or damage the filter seal and result in excessive oil leakage.
Affected Product
Model & Identification Number
12G AWD (61M15296, 61M15300, 61M15307, 61M15311, 61M15318, 61M15333, 61M15337, 61M15433)
140G AWD (72V11805, 72V11822, 72V11837, 72V11858, 72V11861, 72V11878, 72V11895, 72V11910, 72V11929, 72V11934, 72V11947, 72V11960, 72V11967, 72V11974, 72V11978, 72V11986, 72V11996, 72V12007, 72V12011, 72V12021, 72V12027, 72V12034, 72V12038, 72V12046, 72V12055, 72V12060, 72V12068, 72V12078, 72V12083, 72V12091, 72V12138, 72V12176, 72V12201, 72V12226, 72V12234, 72V12243, 72V12253, 72V12272, 72V12281, 72V12287, 72V12296, 72V12306, 72V12315, 72V12326, 72V12333, 72V12351, 72V12361, 72V12374, 72V12385, 72V12394, 72V12404, 72V12411, 72V12421, 72V12430, 72V12440, 72V12448, 72V12452, 72V12457, 72V12462, 72V12471, 72V12475, 72V12480, 72V12489, 72V12498, 72V12506, 72V12515, 72V12519, 72V12525, 72V12533, 72V12550, 72V12561, 72V12569, 72V12578, 72V12586, 72V12595, 72V12603, 72V12611, 72V12620, 72V12627, 72V12634, 72V12639, 72V12648, 72V12658, 72V12666, 72V12674, 72V12684, 72V12692, 72V12701, 72V12714, 72V12723, 72V12732, 72V12740, 72V12749, 72V12758, 72V12766, 72V12775, 72V12784, 72V12792, 72V12802, 72V12809, 72V12818, 72V12827, 72V12836, 72V12844, 72V12854, 72V12862, 72V12870, 72V12879, 72V12888, 72V12896, 72V12904, 72V12914, 72V12923, 72V12932, 72V12941, 72V12950, 72V12959, 72V12968, 72V1297772V12985, 72V12993)
140G AWD (72V13010, 72V13019, 72V13027, 72V13036, 72V13043, 72V13052, 72V13060, 72V13069, 72V13074, 72V13083, 72V13091, 72V13100, 72V13105, 72V13114, 72V13118, 72V13127, 72V13134, 72V13143, 72V13152, 72V13157, 72V13171, 72V13202, 72V13213, 72V13221, 72V13238, 72V13254, 72V13263, 72V13275, 72V13287, 72V13401, 72V13410, 72V13424, 72V13433, 72V13441, 72V13454, 72V13465, 72V13478, 72V13487, 72V13497, 72V13506, 72V13516, 72V13525, 72V13534, 72V13544, 72V13553, 72V13561, 72V13572, 72V13599, 72V13608, 72V13618, 72V13627, 72V13645, 72V13653, 72V13664, 72V13672, 72V13692, 72V13701, 72V13719, 72V13729, 72V13738, 72V13752, 72V13768, 72V13781, 72V13793, 72V13802, 72V13810, 72V13823, 72V13832, 72V13844, 72V13853, 72V13860, 72V13873, 72V13881, 72V13893, 72V13900, 72V13914, 72V13920, 72V13929, 72V13944, 72V13953, 72V13966, 72V13974, 72V13988, 72V13998)
140G AWD (72V14011, 72V14035, 72V14059, 72V14082, 72V14116, 72V14134, 72V14148, 72V14164, 72V14177, 72V14189, 72V14198, 72V14215, 72V14223, 72V14233, 72V14241, 72V14246, 72V14253, 72V14259, 72V14272, 72V14279, 72V14283, 72V14295, 72V1430372V14312, 72V14320, 72V14329, 72V14334, 72V14341, 72V14350, 72V14358, 72V14367, 72V14372, 72V14375, 72V14385, 72V14393, 72V14401, 72V14409, 72V14418, 72V14422, 72V14427, 72V14433, 72V14438, 72V14444, 72V14450, 72V14455, 72V14460, 72V14465, 72V14471, 72V14476, 72V14482, 72V14487, 72V14493, 72V14498, 72V14504, 72V14509, 72V14514, 72V14520, 72V14525, 72V14531, 72V14536, 72V14542, 72V14548, 72V14554, 72V14567, 72V14585, 72V14603, 72V14609, 72V14622, 72V14640, 72V14647, 72V14659, 72V14702, 72V14718, 72V14722, 72V14732, 72V14742, 72V14751, 72V14761, 72V14774, 72V14781, 72V14789, 72V14803, 72V14811, 72V14824, 72V14832, 72V14845, 72V14859, 72V14872, 72V14880, 72V14887, 72V14896, 72V14906, 72V14915, 72V14923, 72V14931, 72V14941, 72V14955, 72V14969, 72V14983, 72V14998)
140G AWD (72V15015, 72V15033, 72V15058, 72V15071, 72V15084, 72V15093, 72V15111, 72V15123, 72V15137, 72V15151, 72V15157, 72V15168, 72V15188, 72V15209, 72V15218, 72V15225, 72V15237, 72V15252, 72V15261, 72V15269, 72V15279, 72V15288, 72V15296, 72V15313, 72V15333, 72V15337, 72V15347, 72V15358, 72V15418, 72V15429, 72V15442, 72V15455, 72V15468, 72V15480, 72V15487, 72V15500, 72V15508,72V15515, 72V15522, 72V15534, 72V15560, 72V15580, 72V15588, 72V15603, 72V15620, 72V15639, 72V15658, 72V15666, 72V15678, 72V15686, 72V15701, 72V15709, 72V15722, 72V15729, 72V15742, 72V15751, 72V15765, 72V15773, 72V15789, 72V15802, 72V15813, 72V15826, 72V15884, 72V15895, 72V15903, 72V15921, 72V15928, 72V15934, 72V15939, 72V15952, 72V15960, 72V15972, 72V15990, 72V16003, 72V16022, 72V16041, 72V16055, 72V16068, 72V16079, 72V16092, 72V16106, 72V16134, 72V16155, 72V16171, 72V16192, 72V16210, 72V16226, 72V16244, 72V16257, 72V16272, 72V16286, 72V16300, 72V16316, 72V16337, 72V16348, 72V16360)
Parts Needed
1 - 6E3472 Valve As.1 - 6V8636 Connector-Se1 - 6V9836 Tee-Swivel1 - 9X2349 Hose (Bulk)1 - 9X3758 Coupling1 - 9X3798 Coupling-OrfAction Required
Refer to the Service Manual as required. Install the new parts as shown in the following photo