1998/05/11 Caterpillar

New Engine Lifter Arm Assembly With Crowned Roller Used In Lifter Groups {1209}

Usage:

3114, 3116, 3126, And 3126 HEUI Machine Engines In Caterpillar Machines

Description of Change: An new lifter arm assembly with a crowned roller is used in the lifter groups on these machine engines. A crowned roller reduces edge loading on the roller and camshaft.

New 146-8147 Lifter Arm Assembly

Adaptable To: The new 146-8147 Lifter Arm Assembly is a direct replacement for the former 7W-3989 Lifter Arm Assembly. The former lifter arm assembly is canceled. The new 146-8147 Lifter Arm Assembly is used in the 7C-6078 Lifter Group in the above engines with mechanical unit injection and the 101-3263 Lifter Group in 3126 engines with Hydraulically Actuated Electronic Unit Injectors (HEUI).

The new 146-8147 Lifter Arm Assembly is effective in the 101-3262 Lifter Group in the 128-7367 Engine Arrangement for 3126 HEUI (4CW240) Machine Engines. The chart shows the effectivity of the new 146-8147 Lifter Arm Assembly in the 7C-6078 Lifter Group on mechanically unit injected 3114, 3116, and 3126 machine engines.

Caterpillar Information System:

1998/05/11 Corrections And Release Of Schematic {5050,4350,3203}

1998/05/11 Operation Of The Conveyor System In Manual Override {6631,5643}

1998/05/11 Supplement To "Improvements To Brake Caliper Seals Prevent Leaks In High Temperature Applications" {4256}

1998/05/11 Supplement To Correct Bearing Cap Torque For Differential {3258}

1998/05/11 Service Intervals For RAYCOR Fuel Filter Group {1261,1250,1280}

1998/05/11 New Rock Ejector Assembly Reduces Tire Damage {7157}

1998/05/11 Weld Repair Procedure For Rear Upper Front Strut Mounting Plates {7050,7201}

1998/05/11 New Intermediate Cylinder In Hoist Cylinder Increases Clearance Between Rod And Head To Prevent Binding {5102}

1998/05/11 New Gear Assembly And Stub Shaft Used In Front Gear Group {1206}

1998/05/04 Correction To 9C-8172 Brake & Planetary Group{0374,4011,4255}

1998/05/04 ROPS Instruction Film Available Through Parts Service{7177,7405}

1998/05/04 Improved Alternator Groups Now Available{1405}

1998/05/18 Removing Fuel Tank {1273}

1998/05/18 Procedure To Adjust Hand Throttle Control {1265,1269}

1998/05/18 Improved Cab Door Seals Available {7308}

1998/05/18 New Rotary Switch For Heater/Air Conditioning Control Provides Improved Service Life {1400,7309,7337}

1998/05/18 New Custom Product Support Literature Is Available For 773D And 775D Trucks Equipped With 3Z-6276 Traction Control System (TCS) Arrangement (Factory/Field Install) {0374,4801}

1998/05/18 New Head For Rear Suspension Groups Increases Clearance Between Rod And Head To Increase Service Life Of Rod {7213}

1998/05/18 New Aftercooler Cores Prevent Internal And External Coolant Leaks {1063,1064}

1998/05/18 Tool For Adjusting Bearings On Wheels Improves The Accuracy Of Adjustment {4208,0767,7551}

1998/05/18 Supplement For "Install Wheels, Bearings & Duo Cone Seals" {4208,7551,7561}

1998/05/18 Supplement To Correct Shim Thickness On Wheel Bearings {4208,7551}

1998/05/18 Bearings Available For Wheels In Severe Applications {4208,7551}

1998/05/18 Supplement To Wheel Bearing Adjustment Procedure {4208,7551}