1997/11/03 Caterpillar


Improved Seal In Torque Converter Group Available {7555,3101}

Usage:


771C (3BJ),
771D (6JR),
775B (7XJ),
775D (6KR) Quarry Trucks;
769 (99F),
769B (99F),
769C (01X),
769D (5TR),
773 (63G),
773B (63W),
773D (7ER) Off-Highway Trucks

SUPPLEMENT: APRIL 20, 1998

Service Magazine SEPD0389, Article 9, Page 9, November 3, 1997; "Improved Seal In Torque Converter Group Available", for 771C, 771D, 775B, 775D Quarry Trucks; 769, 769B, 769C, 769D, 773, 773B and 773D Off-Highway Trucks.

Additional 139-5802 Lip Type Seal effectivity information is listed in the following chart:

--------------- END SUPPLEMENT ---------------

Description of Change: Improved seal with a dust excluder lip and new material with improved wear resistance. New material also improves high temperature properties and is used in the off-highway trucks to increase service life of the torque converter.

Adaptable To: The 139-5802 Lip Type Seal is a direct replacement for the former 1T-0352 Lip Type Seal. The 139-5802 Lip Type Seal in 1T-1212 Torque Converter Group is effective with 771D (6JR132) Quarry Trucks and 769D (5TR490) Off-Highway Trucks. The new seal is also in 1T-1213 Torque Converter Group and effective with 775D (6KR121) Quarry Trucks; and 773D (7ER373) Off-Highway Trucks. The 139-5802 Lip Type Seal is adaptable to all earlier machines.

Remanufactured Torque Converter Arrangement 0R-4061 for 769C (1X2877-UP), 769D (5TR-UP) Off-Highway Trucks and 771D (6JR-UP) Quarry Trucks. Remanufactured Torque Converter Arrangement 0R-4062 for 769C (2X323-349) Off-Highway Trucks. Remanufactured Torque Converter Arrangement 0R-4063 for 773B (63W1221-UP), 773D (7ER) Off-Highway Trucks and 775B (7XJ), 775D (6KR) Quarry Trucks. Remanufactured Torque Converter Arrangement 0R-4064 for 773B (63W118-1220) Off-Highway Trucks.

Caterpillar Information System:

1997/11/03 Parts For Engine Prelube Motor Now Serviced {1603}
1997/11/03 Serviceable Parts Available For Low Pressure Turbocharger In Low Altitude Engine Arrangement {1052}
1997/11/03 New Tie Rods And Spindle Assemblies Improve Service Life {4329,3282}
1997/10/27 History Of Pump Impeller (Water Pump) Changes{1364}
1997/10/27 Significant Improvement For Pump Impellers (Water Pumps){1364}
1997/10/27 New Troubleshooting Guide Available{0374}
1997/10/27 New Vane Pump Group, Assures Clearance For Drive Gear, And Correct Alignment Of Vane Pump Group With Torque Converter Cover{5055}
1997/10/27 Corrected Boom Chain Information For Operation And Maintenance Manual{6460,6404}
1997/10/27 Updated VIMS Configurations Available For 793C Off-Highway Trucks{7601,7407,7417,7470,1924}
1997/10/27 New Brake Valve Groups Have Breather Plug In Vent Port For Air Cylinder Group{4265}
1997/10/27 Changes Made To Water Lines Group In Order To Reduce Damage Caused By Vibration{1380}
1997/10/27 New Custom Product Support Literature Is Available For 776C Tractors And 777C Trucks Equipped With Fuel Tank Extension Group{0374}
1997/11/03 New Radiator Bracket Increases Service Life {1353}
1997/11/03 VIMS-PC, Windows '95 And Novell Network Interaction {7601}
1997/11/03 Proper Welding Procedure On Machines And Engines With Electronic Controls {1400}
1997/11/10 Proper Tensioning Of V-Belt {1807,7320,1800,1357}
1997/11/10 Prodecure To Program Transmission ECM Configuration Code Corrected {3168}
1997/11/10 C-Series Backhoe Loader Air Conditioner Units Can Leak {1808,1805}
1997/11/10 Differences Between 446B Transmissions {3030,3167}
1997/11/10 Improved Core Assembly Available For Radiator Group {1353}
1997/11/10 New Anti Rotation Pins Used On Rear Suspension Cylinders To Improve Service Life {7218,7213,7201,7200}
1997/11/10 New Hoist Cylinders Available For Service Repair {5102}
1997/11/10 New Propel Motors Have Adjustable Maximum Displacement Screws {4351}
1997/11/10 Handling Instructions For Water Pumps {1361}
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