1999/04/26 Caterpillar

New Oil Pump Group Used{1304}

Usage:

D8R (7XM, 9EM) Track-Type Tractors;
375L (9WL, 1JM) Excavators;
5080 (8SL, 6SK) Front Shovels;
583R (2XS) Pipelayers;
627F (1DL),
621F (4SK) Scrapers;
980G (2KR) Wheel Loaders;
771C (6JR) Off-Highway Trucks

SUPPLEMENT: JUNE 21, 1999

Service Magazine SEPD0469, Article 16, Page 15-16, April 26, 1999; "New Oil Pump Group Used"

Disregard the above article and see Service Magazine SEPD0477, Article 5, Page 5 with the same title.

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

Description of Change: New oil pump groups utilizing steel idler and drive gears are now used on the 3406 engines in the above machines. The new parts will provide a more robust oil pump with longer life characteristics.

Adaptable To: The chart identifies the new oil pump groups and gear assemblies and the former groups used on the engines in the above machines.

Caterpillar Information System:

1999/04/26 Correction To Special Instruction SEHS9737; "Rework Window Regulator On Operator Door"{7308}

1999/04/26 Proper Adjusting Of Body Down Or Up Switch{7258}

1999/04/26 Wheel Bearing Adjustment Procedure For 789 Cast Wheel And High Capacity Bearings{4051,4066,4208}

1999/04/26 New Wheel (Cast) And Required High Capacity Bearings Will Increase Service Life{4051,4066,4208}

1999/04/26 New Caterpillar Monitoring System (CMS) Control Groups Are Available{7490}

1999/04/26 Correct Placement Of Rock Ejector Brackets Eliminates Interference{7157}

1999/04/26 New Hardened Hub Available For Certain Off-Highway Trucks{4050}

1999/04/26 Improved Charge Pump Shaft Increases Life{4306,4344}

1999/04/26 Individual Replacement Guide Blocks Available{4198}

1999/04/26 Puller Tools Available For 3-Point Hitch Draft Sensing Pins{7120,5700}

1999/04/26 Improved Bevel Gear And Pinion Now Used{3254,3256,3258}

1999/04/19 New Screed Plates Are Now Available {6641}

1999/04/26 New Pulse Width Modulated Steering Sensor Now Available{4800}

1999/04/26 Serviceable Cover Group-Protection Available{5258,1408}

1999/04/26 Stronger Brush Springs Improve Actuator Service Life On Flexxaire Fans{1356}

1999/04/26 Flexxaire Fan Interactive Product Guide CD Now Available{1356}

1999/04/26 Available Rebuild Options For Flexxaire Fans{1356}

1999/05/03 Improved Main Fuel Tank Available {1273}

1999/05/03 New Wiring Harness Assemblies Used On 3500B Machine Engines {1408}

1999/05/03 Improved Cab Harness Accommodates Additional Relay {1408}

1999/05/03 144-0835 Pump Enhancements {1714}

1999/05/03 Serviceable Parts Available For Low Pressure Turbocharger In Low Altitude Engine Arrangement {1052}

1999/05/03 Weld Procedure For Field Repair Of Certain Large Off-Highway Truck Differential Housings {4050}

1999/05/03 New Engine Oil Filler Used {1316}