1994/07/25 Caterpillar

Lubrication Oil Recommendations Have Been Changed For Caterpillar OFF-Highway Trucks And Tractors{0374,0375}

Usage:

768C (02X),
772B (64W),
776B (6JC),
776C (2TK, ) 784B (5RK) Tractors;
769C (01X, 1ED),
773B (63W),
777B (4YC),
777C (4XJ),
785 (8GB),
785B (6HK),
789 (9ZC),
789B (7EK),
793 (3SJ),
793B (1HL) Trucks;
771C (3BJ),
775B (7XJ) Quarry Trucks

Revisions have been made to the recommended lubrication oils for Caterpillar Off-highway Trucks and Tractors. Key points to remember are:

* Multi grade oils should not be used in the transmission or in the hoist, converter, and brake hydraulic system.

* It is recommended to use the heaviest weight oil allowed in the following lubricant viscosity chart.

* This information supersedes any previous publications which may contain conflicting information.

* Oils that contain friction modifiers (non-TO-4) should not be used in the transmission, hoist, torque converter or brake cooling system.

NOTE: When operating below -20°C (-4.0°F), Use Operation & Maintenance Manual, SEBU5898, "Cold Weather Recommendations", available from your Caterpillar dealer.

Caterpillar Information System:

1994/07/18 Rubber Drive Belt Field Repair Kit{4213}

1994/07/18 Diameter Of Spherical Bearings In Steering Cylinders Increased{7072,4303}

1994/07/18 New Instrument Panel Groups With Improved Light Bulb Retention Can Be Installed{7451}

1994/07/18 Improved Back-up Rings Prevent Pressure Build-up In Off-highway Truck Hoist Cylinder Groups{5102}

1994/07/18 New Cam Adjustable Link Now Used With Motor Grader Rippers{6166}

1994/07/18 Air Ride Seat Suspension Retrofit{7307}

1994/07/11 Intake And Exhaust Valve Lash Increased{1105}

1994/07/11 Different Fuel Filter Available To Prevent Premature Wear On Fuel Injection Pump Plungers And Barrels{1261,1251}

1994/07/11 Bulk Hose Material Is Available For Air Conditioners With R-134a Refrigerant{1808}

1994/07/11 New Hose Assemblies Used In Turbocharger Oil Lines Groups{1307}

1994/07/11 New Vibratory Pump Components Improve Service Life{5070}

1994/07/11 Throttle Cable Improved{1265}

1994/07/25 Correct Position Of Clamp Assembly Is Required To Prevent Tie Rod Damage{4318,4329}

1994/07/25 Maintenance Interval For Steering Components, Hoist Cylinder Bearings And Rear Axle Housing "A" Frame Bearings Has Changed{7521,7551}

1994/07/25 Spacers Used To Eliminate Noise Due To Lateral Hoist Cylinder Movement When The Body Is Raised{5102}

1994/07/25 A New SEPD0208 Special Edition Service Magazine Available For "D" Series Articulated Trucks{0374}

1994/07/25 New Locking Plate And Thrust Flange Used In Hitch Drive Shaft Group{7051}

1994/08/08 New Front Engine Support Available For Parts Service{1153}

1994/08/08 External Fuel Tank Wear And Corrosion Can Be Prevented{1273}

1994/08/08 Body Mounting Plate Can Contact Front Service Brake Roto Chamber{4262,4266,7258}

1994/08/08 New Covers Protect Inverted Rear Suspension Cylinders{7164}

1994/08/08 Heavy Duty Alternator Available For Landfill Compactor{1400}

1994/08/08 Procedure To Disable Top Gears On Small Wheel Loaders And Integrated Toolcarriers{3168}

1994/08/08 SOS Allowable Soot Level Changed{1318}