1994/08/29 Caterpillar

Washer Can Be Used To Prevent Seal Deformation In The Hoist Control Valve Group {5051}

Usage:

789 (9ZC),
793 (3SJ) Trucks

The 8F-3469 Seal (1), part of the hoist control valve group may become deformed during machine operation. Deformation of the 8F-4369 Seal can be prevented by placing a 5P-0537 Washer inside the seal before installation.

Location of the 8F-3469 Seal.

Caterpillar Information System:

1994/08/29 New Extendable Stick Tube Assemblies Provide Better Routing Serviceability {5486}

1994/08/29 Main Power Relay May Not Work Properly {1423}

1994/08/22 New Fuel Priming Pump And Improved Gasket Used{1258}

1994/08/22 Lubrication Change On Twin Disc Power Take-Off's (PTO's){3055}

1994/08/22 New Hi/Low Refrigerant Pressure Switch Is Now Used On Certain Air Conditioned Machines{7320}

1994/08/22 Door Insulation Retention Method Is Improved{7308}

1994/08/22 Drive Shaft Bearings Inside The Hitch Need To Be Greased During Assembly {3253,7100}

1994/08/22 New Hoist Control Valve Used To Improve Hoist Cylinder Operation{5136}

1994/08/22 Procedure To Modify 4P-4866 Coupling And 4P-4864 Housing To Work With New High Pressure Turbocharger{1052}

1994/08/22 Parking Brake Performance Can Be Increased{4267,4251}

1994/08/15 Switches With Screw Terminal And Sure Seal® Connector Replaced By Switches With A DT Connector{1400,7400}

1994/08/15 Power Proportioner Valve No Longer Available{5086}

1994/08/29 Special Instructions SEHS9793 Available For Servicing 2A-6380 Suspension Seat {7324}

1994/08/29 Improved Automatic Retarder Control (ARC) {3121}

1994/08/29 Description And Usage Of The Electronic Programmable Transmission Control II (EPTC II) {3168}

1994/08/29 Cylinder Head Bolt Tightening Procedure {1100}

1994/08/29 Oil Drain Assembly Improved To Reduce Thread Interference With Drain Plug {1302}

1994/08/29 New Exhaust Manifolds, Longer Mounting Studs And Spacers Used In Exhaust Manifold Groups {1059}

1994/09/05 Fabric Suspension Cylinder Covers Are Now Used To Protect Cylinder Rods{7201}

1994/09/05 New Radiator Shroud and Support Bracket Improve Service Life{7272,1351}

1994/09/05 Improved Engine Door Hinge Used{7263}

1994/09/05 Air Cleaner Filter Screens Require Maintenance{1051}

1994/09/05 New Plunger In Fuel Pressure Regulating Valve{1250}

1994/09/05 Fan V-Belt Part Number Has Changed For Certain Models With The 3204 Engine{1357}