1999/07/12 Caterpillar

Supplement To Correct Power Train D&A On Assemble Final Drives {4050}

Usage:

12H (4XM, 8MN, 2WR, 5ZM, 4ER, 2LR, 2GS),
140H (2ZK, 9TN, 9ZN, 3FR, 8JM, 5HM, 8KM, 3AS),
160H (9EJ, 3GM, 3HR, 9JM, 2FM, 6WM, 2HS) Motor Graders

Reference: SENR8548; Disassembly & Assembly, 12H, 140H & 160H Motor Graders Power Train; "Assemble Final Drives". This module is part of Service Manual SENR8545.

Item 14 in the referenced D&A Manual is incorrect. It should read as follows:

14. Install spanner nut (17) to the drive shaft. Orient housing (29) in the vertical position with the flange down. Rotate shaft (20) and rap the sprockets while tightening spanner nut (17) to a torque of 12 ± 1 N·m (100 ± 10 lb in). This will preload the bearings. Back spanner nut (17) off one locking position and rap the sprockets. This is done to assure that the bearings are fully seated. Final rolling torque should be 4 ± 1 N·m (35 ± 10 lb in). Adjust spanner nut (17) to obtain the correct rolling torque value above seal drag.

Caterpillar Information System:

1999/07/12 Implement Pump Changed {5057,5070}

1999/07/12 Rear Window Latch Improved {7310,7301}

1999/07/12 New Flow Controls/ Compensators Available {5000,5050,5051}

1999/07/12 Stronger PTO Shaft Available {3107}

1999/07/12 Improved Main Fuel Tank Available {1273}

1999/07/12 Snap Ring Improves Rod Wiper Seal Retention {4303,5101,5102,5104,5213}

1999/07/05 New Knob Kit Available For Track Tension Manifold {4197,5051}

1999/07/05 Transmission Maximum Gear is Programmable with Electronic Technician {3168,7610}

1999/07/05 Refrigerant Compressor Group Improvements Increase Belt Life and Reduce Guard Cracking {1802,1807}

1999/07/05 VIMS-PC Version 2.4.2 MST Update Available {7601}

1999/07/05 New Tube Assemblies Used In Torque Converter Lines Group {3101}

1999/07/05 Replacing Propel Pumps On Vibratory Compactors {5070}

1999/07/12 Improved Quick Coupler For Backhoe Loaders Provides Better Vertical Digging {6129}

1999/07/12 Proper Cylinder Eye And Rod Eye Diameters Ensure Bearing Retention In Suspension Cylinders {7213}

1999/07/12 Correction To Certain Off-Highway Truck Service Manual Modules {0374,7521}

1999/07/12 New Engine Electronic Control Groups (Personality Modules) Available {1902}

1999/07/12 New Joint For Transmission Oil Cooler Lines {1375,3154}

1999/07/12 New Body Mounted Mud Guard Group Available {4220}

1999/07/12 Stainless Steel Pin Available For Parking Brake Groups {4267}

1999/07/12 A More Durable Alternator Mounting Configuration Is Now Available {1405}

1999/07/12 Oil Carryover Prevention {1317}

1999/07/12 Flywheel Ring Gear Is Serviceable {1158}

1999/07/12 New Bracket Assembly Improves Service Life Of Governor Control {1908}

1999/07/12 New Service Parts For Fully Hydraulic Brake System Provide Improved Serviceability {4263}