Usage:
NOTE: 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.
NOTE: This Program can be administered either before or after a failure. In either case the decision whether to apply the Program is made by the dealer. When reporting the repair, use "PS8142" as the Part Number and "7755" as the Group Number. If administered before failure, use "56" as the Warranty Claim Description Code and use "T" as the SIMS Description Code. If administered after failure, use "96" as the Warranty Claim Description Code and use "Z" as the SIMS Description Code.
NOTE: This Revised Service Letter replaces the February 10, 1995 (Revised February 1995) Service Letter. Changes have been made to the Service Claim Allowances.
Termination Date
February 28, 1998Problem
The retaining nut and lock that maintains bearing adjustment in the pump drive transfer gear group may loosen on certain 12G and 140G All Wheel Drive (AWD) Motor Graders. Noise and vibration can result at low hours (800-2100) and may repeat.
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, 72V12977, 72V12985, 72V12993, 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, 72V14011, 72V14035, 72V14059, 72V14082, 72V14116, 72V14134, 72V14148, 72V14164, 72V14177, 72V14189, 72V14198, 72V14215, 72V14223, 72V14233, 72V14241, 72V14246, 72V14253, 72V14259, 72V14272, 72V14279, 72V14283, 72V14295, 72V14303, 72V14312, 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, )
140G cont. (72V14941, 72V14955, 72V14969, 72V14983, 72V14998, 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 - 0A1925 Cone
- 1 - 1B3955 Cup-Roller B
- 1 - 3D9125 Cone-Roller
- 1 - 3D9126 Cup-Roller B
- 1 - 1Q5575 Key
- 1 - 1Q5577 Gasket Kit
- 1 - 1Q5613 Key
- 2 - 7X4774 Seal-Lip Type
- 1 - 7X4795 Seal-lip Type
- 1 - 9X7698 Seal-Lip Type
- 1 - 1096467 Pinion-Gear
- 1 - 1096468 Gear
- 1 - 1103180 Nut-lock
- 1 - 1B3955 Cup-Roller B
Action Required
Parts Stock
Remove all 1Q5570 and 1Q5611 Gears from dealer Parts Stock.
Affected Product
Install the new parts as described in Special Instructions SEHS9819. This Special Instructions describes the update and all of the proper adjustments for future reference.
Service Claim Allowances
Parts Stock
Submit one claim for all 1Q5570 and 1Q5611 Gears removed from dealer Parts Stock.
Affected Product
NOTE: This is a 32-hour job.
Parts Disposition
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.