1997/05/19 Caterpillar

New Electronic Transmission Control Group Used{3032,3100}

Usage:

814F (9DM) Wheel Tractors;
815F (1GN) Soil Compactors;
816F (5FN) Landfill Compactors;
938F (1KM, 2RM, 7SN, 8SM),
950F Series II (2LM, 5SK, 8TK),
960F (1YM, 4CL, 6XL, 9ZJ),
966F Series II (1SL, 8BG, 9YJ),
970F (7PL, 7SK, 9JK),
980F Series II (4RN, 8JN) Wheel Loaders;
IT38F (5DR, 6FN) Integrated Tool Carriers

Reference: Service Manual Module, SENR5922, "Electronic Transmission Control System Operation, Testing And Adjusting".

Description of Change: This article replaces Service Magazine Article; February 24, 1996; Page 18; "New Electronic Transmission Control Group Used."

New transmission control groups are now used. The new control groups have improved software which enhances the following features:

1. Shift Logic while loading in the pile while in Automatic mode.

2. Second gear to first gear operator initiated downshift logic while in Automatic mode.

3. Downshift logic during a third gear directional shift.

Adaptable To: A partial listing of the new control groups that directly replace the earlier "autoshift" controls are listed in the following charts.

Caterpillar Information System:

1997/05/19 Improved Speed Sensor Group Used{1907}

1997/05/19 Installation Of Transmission Oil Distributor Sleeves{5208,3002,3159,3176}

1997/05/19 Torques For Wheel Nuts And Bolts Are Incorrect In The Operation And Maintenance Manual{4201,4202}

1997/05/19 Dimensions For Installing Attachment Tailgate Mounting Hardware On Articulated Truck Dump Bodies{7271,7258}

1997/05/19 Improvements Made To Prevent Alternator Terminal Breakage{1405}

1997/05/19 Cylinder Rod For Suspension Cylinder Groups Has Larger Diameter Bolts For Piston Retention{7201}

1997/05/19 Improved Crankcase Breather Group Is Available{1317}

1997/05/19 Improved Components For Air Lines Groups{1058,1063}

1997/05/19 New Engine Software Available For 3412E Engines In 24H Motor Graders{1920}

1997/05/12 New Cylinder Groups Use Piston For Internal Stop {7562,5101,5102,5104}

1997/05/12 Structural Improvement To Piston Permits Removal Of Piston Coatings {1214}

1997/05/12 Correction To 50 Hour Machine Lubrication Schedule {7521,6437,6451,6452}

1997/05/19 New Differential Pinion Bearing Setting Tool And Procedure Available{3258}

1997/05/19 Torque Specified For Piston Rod Nut In Steering Cylinder Group{4303}

1997/05/19 New Antirotation Bearing Pins And Bearing Lubrication Lines Used On Rear Suspension Cylinder Bearings To Increase Service Life{7218,7213,7201,7200}

1997/05/19 Backup Alarms Improved{7406}

1997/05/26 Foam Filled Oil Saver Tanks Used In Off-Highway Truck Rear Axle Groups To Increase Bearing Life{3260}

1997/05/26 New Brake Group Available For Thicker Front Wheel Casting{4006,4251,4201}

1997/05/26 Improved Drum Pad Provides Increased Service Life{6605}

1997/05/26 New Custom Product Support Literature Is Available For 776D Tractors And 769D, 771D,773D, 775D, 777D Off-Highway Trucks Equipped With Power Converter Arrangement{0374,1421}

1997/05/26 New Custom Product Support Literature Is Available For 784B Tractors And 785B Trucks Equipped With Crankcase Guard{0374,7151}

1997/05/26 New Custom Product Support Literature Is Available For 776D Tractors And 777D Trucks Equipped With Rubber Step Group{0374,7254}

1997/05/26 New Custom Product Support Literature Is Available For 784B Tractors And 785B, 789B, And 793C Trucks Equipped With Roller Visor Group{0374,7165}

1997/05/26 Variable Speed Fan Drives{1359}