1998/01/26 Caterpillar

Increased Material On Rear Suspension Support Castings {7210,7050}

Usage:

776D (5ER) Tractors;
771D (6JR),
775D (6KR) Quarry Trucks;
769D (5TR),
773D (7ER),
777D (3PR),
777D (2YW) Off-Highway Trucks;

Effective first quarter 1998, the following Off-Highway Truck frame groups will be manufactured featuring increased material in certain high wear areas and an improved machining process to the rear suspension support castings. The improved rear suspension support castings will decrease wear caused by rear suspension cylinders.

The improved rear suspension support castings will be used in 119-7297 Frame Group on 769D (5TR) Off-Highway Trucks and 771D (6JR) Quarry Trucks; 119-7296 Frame Group on 773D (7ER) Off-Highway Trucks and 775D (6KR) Quarry Trucks; 117-5159 Frame Group on 776D (5ER) Tractors; 117-5158 Frame Group on 777D (3PR) Off-Highway Trucks; 136-0881 Frame Group 777D (2YW) Off-Highway Trucks.

Caterpillar Information System:

1998/01/26 Longer Studs Or Bolts And Spacers Will Improve Assembly Between Differential And Differential Housing {3258,3283}

1998/01/26 New Wheel (Cast) And Required High Capacity Bearings Will Increase Service Life {4051,4066,4208}

1998/01/26 Addition Of Valve Assembly To Brake Lines Group Will Provide Access For Field Oil Sampling {4295}

1998/01/26 Special Instruction Available For Installing 3516B EUI Engine To 793B Off-Highway Trucks With VIMS {0374,7601,1000}

1998/01/26 New Clamp Assemblies Used In Air Lines Groups {1071}

1998/01/26 Updated Electrical Schematic Available For 785B And 789B Off-Highway Trucks {0374,4070,0645}

1998/01/26 New Custom Product Support Literature Available For 776D Tractors And 777D Trucks Equipped With 3Z-6307 Fuel Filter And Heater Group {0374,1261,1296}

1998/01/26 Special Instruction Available For Installing More Reliable Automatic Retarder Control System In Some Off-Highway Trucks {0374,3121}

1998/01/26 New Custom Product Support Literature Available For 773D And 775D Trucks Equipped With 3Z-4542 And 3Z-6270 Automatic Lubrication Groups {0374,7540}

1998/01/26 Sprague Clutch Assembly Rework Procedure {5414}

1998/01/26 C-Series Backhoe Loaders Are Being Updated {1000,0685,0720,1001,1013,1350,3030,7950}

1998/01/26 New Cable Improves Heater Knob Operation {7304}

1998/01/26 Air Filter Used In Fast Fill Service Center Groups To Decrease Contamination In Fuel {7513,1273}

1998/01/26 Supplement For Effectivity On Suspension Control Sensor Group {7227}

1998/01/26 Supplement For Rolling Torque Specification {3254,3258,3263}

1998/01/26 Washer Bottle Strap Now Available Through Parts Service {7306}

1998/01/26 New Muffler Assembly And Support Brackets Available {1062}

1998/01/26 Serviceable Parts Available For Fuel Injection Pump Groups {1251}

1998/01/26 New Washer-Retainers Increases Service Life Of Rolling Hoses {6460,5057}

1998/01/26 Adjustable Mounting Arrangement And Flexible Coupling For Hydraulic Pump Available {5062}

1998/01/26 098-5847 Handle Retainer Bracket In The 098-5853 Quick Hitch Group Is Now Serviced {6129}

1998/01/26 Improved Load Capacity Charts Are Model Specific {6400}

1998/01/26 Individual Components Of Hydraulic Pumps Are Available As Separate Service Parts {5070}

1998/01/26 The 154-6732 Pump Kit Is Available To Help Service The Unit Injector Hydraulic Pump Group On 3408E (99C) And 3412E (80M) Machine Engines {1714}