1978/03/27 Caterpillar

Improved Thrust Washers Now Used With Planet Gears{3000,3072,3106,3110,3003,3001,3100,3116,3159,3176,3107,5150,5165}

Usage:

Torque Dividers, Powershift Transmissions, Power Take-Offs and Towing Winches

SUPPLEMENT: 10/13/78

SERVICE MAGAZINE, MARCH 27, 1978, PAGE 2. In the article "Improved Thrust Washers Now Used With Planet Gears", the last paragraph in the article tells you the outer diameter of the washers have black paint for easy identification. The black paint is no longer put on these washers. The part numbers on the washers must now be used for identification. Make a mark through the words "but, to make identification of the new thrust washers easy, the new thrust washers are black on the outer diameter" in the March 27 article.

--------------- END SUPPLEMENT ---------------

Description of Change: Improved thrust-washers are now used with planet gears in torque dividers, powershift transmissions, power take-offs and towing winches. The new thrust-washers have larger bend radii at the edges of the oil grooves. The larger radii make the thrust-washer stronger for longer service life.

Adaptable As: Direct replacement. The part number is on both the former and the new thrust-washers but, to make identification of the new thrust washers easy, the new thrust-washers are black on the outer diameter.

Caterpillar Information System:

1978/03/27 5P8675 Extension Handle Available For General Uses{0614}

1978/03/27 Use 5P8706 Die Repair Kit For The Repair Of 9S6331 Die Assembly{0623}

1978/03/20 "Danger Do Not Operate" Tags Now Available{0374}

1978/03/13 The Causes And Reduction Of White Exhaust Smoke During Cold Engine Starts; Maintenance Aids Available To Decrease This Problem{1250,1383,1050}

1978/03/13 Soft Washers And Lockwashers Are Now Used With The Mounting Bolts For Air-Fuel Ratio Control{1278,1264}

1978/03/13 When A 6N5906 Hour Meter Will Not Operate Correctly, Check The Electrical Supply Before A Replacement Hour Meter Is Installed{7480,1400}

1978/03/13 5P8687 Tee Test Tooling Group{0651,5050}

1978/03/06 New Starter Motors Have Solenoid On Top Of Starter{1407,1453}

1978/03/06 Use Again Specifications For Valve Springs Are Changed{1108}

1978/03/06 5P8558 Pressure Gauge Calibrating Group Checks Pressure Gauges{0650}

1978/03/06 Stronger Piston And Connecting Rod Are Tapered In Area Of Piston Pin{1213,1214,1218}

1978/02/27 New Tachometer Drive Adapter Assembly Prevents Failure Of The Seals For the Tachometer Drive Group And Transfer Pump{7462,1256}

1978/03/27 9N3700 Or 9N3299 Nozzle Assemblies Must Be Used On 3208 Engines That Are Equipped With Exhaust Gas Recirculation (EGR){1254}

1978/03/27 How To Find Correct Oil Change Intervals For Truck Engines Operated In Short Distance Applications (Pick Up And Delivery Service){1318,7500,0374}

1978/03/27 5P4149 Conversion Group To Become A Discontinued Item On October 1, 1978{0650,1254}

1978/03/27 More Torque Now Used To Tighten The Retainer Nut For Turbocharger Compressor{1052,1053}

1978/03/27 Correct Adjustment Of The Governor Control Linkage In Truck Engines Is Necessary To Prevent Low Power{1265,1269}

1978/04/03 Procedure For Alignment Of Transmission Mounting Parts On 1100 Series And 3208 Truck Engines With Allison MT640, MT650, And AT540 Series Transmissions{3000,1156,1157}

1978/04/03 A Gasket Group Is Available To Give Improved Sealing For The Oil Supply To The Rocker Arms On Early Engines{1101,1102,1221}

1978/04/10 New Piston Group With Better Service And Operation Characteristics Now Available{1214}

1978/04/10 New 5P9693 Reusable Cable Tie For Storage Of Wires, Cables And Tubing{0630}

1978/04/10 New Lifting Eye Group Used On 3412 Industrial Engines Equipped With Turbochargers{1101,1000}

1978/04/17 Improved Yokes, Hardened Washers And More Torque Keep Valve Lifter Guides Tight {1209}

1978/04/17 Locating Bushings For The 5P3550 Rod Boring Machine Will Now Hold Tapered Piston Pin Bushings {0626}