1981/01/19 Caterpillar

Green Dye (Color) Added To Transmission Oil For Easier Identification Of Leaks{3004,3067,3179}

Usage:

D5B ( 22X, 23X, 24X, 25X, 26X ),
D6D ( 3X, 4X, 5X, 6X, ) D7G ( 72W, 91V, 92V ) Tractors;
561D ( 54X ),
571G ( 16W ),
572G ( 40U ) Pipelayers

For some time, a green dye (color) has been added to the oil used in the transmissions of the above models that have the serial number prefixes shown. Because of the change in oil color, some dealers have desired information about the possible use of a different oil.

This article is for the purpose of explanation that the oil is not changed, and the addition of the green dye has no effect on the quality or performance of the oil. The green dye is added at the factory to permit easier identification of any leaks and to find the source of leakage more rapidly. The use of green dye in the oil is in effect on machines with the serial numbers shown in the chart.

Caterpillar Information System:

1981/01/19 New Sure Seal Electrical Connectors Used In Electrical Wiring Harnesses; Use 6V3000 Seal Repair Kit To Repair Sure Seal Electrical Connectors{0611,1408}

1981/01/19 Inspection And Test Procedures To Follow When Fuel Ratio Control Does Not Operate Correctly{1278}

1981/01/19 6V3141 And 6V3142 Puller Plates Available For Removal Of Tube And Gland From Front Suspension Groups{7201,0621}

1981/01/19 Thicker Layer Of Chrome Now Used On Governor Spring Guide To Extend Its Service Life{1264}

1981/01/19 New Puller Tools Available For Removal Of Steering Cylinder Pin{0621,4303,7058}

1981/01/19 Steel Turbocharger Steam Vent Tube Assemblies Have Longer Service Life Than Copper Tube Assemblies{1052,1053,1380,1000}

1981/01/19 New Connecting Rod And Main Bearings Have A Thicker Coating (Layer) Of Lead-Tin Overlay{1230,1219,1203}

1981/01/19 FT1576 Puller Plate Used For Removal Of Crankshaft Gear; Drawings For FT1576 Puller Plate Can Be Used For Modification Of Existing Puller Plate{0621,1204,1202}

1981/01/12 Improvements Made To 5P9718 And 6V186 Disc Pads Used During Gasket Removal{0675,0670}

1980/12/22 Four Fabricated Tools Available For Use During Service Of Fuel System Timing Gear{0621,0612,1206,1253,1207}

1980/12/22 Installation Tips For Snow Wing{6150,7051,1356,7155}

1980/12/22 New Oil Pan Gasket Has Silicone Bead For Better Seal{1302}

1981/01/19 Be Sure You Assemble The Turbocharger Lubrication Valve Correctly{1309,1052,1300}

1981/01/26 Ways To Prevent Damage To Spark Ignited Industrial Engines When Hydrogen Sulfide Is Present In The Fuel{1000,1280,1318,1350}

1981/01/26 Improved Tach Drive Adapter Has Step In Shaft To Keep Coupling Engaged{0651,0653}

1981/01/26 6V3150 Engine Pressure Group And 6V3121 Multitach Group Are Available For Testing Engines{0650,1000}

1981/01/26 Washers Added To Prevent Broken Bolts In Stabilizer Rod Joints (Connections) On Rear Axle Housing{3260,3268}

1981/01/26 Use Scheduled Oil Sampling To Find Change Intervals For Hydraulic Oil{5068}

1981/01/26 Use 2P2333 Manifold Sealer On Exhaust Manifold Slip Joints (Junction) During Assembly{1059}

1981/02/02 6V3129 Nozzle Puller Group And FT1533 Nozzle Assembly Adapter Can Be Used To Remove Fuel Nozzles{0621,1254}

1981/02/02 Changes Made To Exhaust Manifold Group And Cylinder Head Group{1059,1101}

1981/02/02 New Exhaust Manifold Has Slip-Joint Connections{1059,1061}

1981/02/02 New, One-Piece Valve Lifter Used{1209}

1981/02/02 Corrected "5.4" 60°V Main Bearing Selection Guide" Is Now Available{0374,1203,1202}