A Washer With Closer Tolerances Is Now Used In The Governor And Fuel Pump Drive Group{1288,7462}
Usage:
3208 Truck Engines;
3208 Marine Engines;
613B Tractors;
and 225 Excavators ( 51U, 61X)
Description of Change: A new washer is used in the engine governor and fuel pump drive groups for the above models. The sides of the new washer are more parallel and flat than those of the former washer. In addition, the inside and outside diameters of the new washer are held to more exact tolerances. The closer tolerances of the new washer will prevent excessive (too much) runout and possible failure of the 9N1856 Shaft Assembly.
Adaptable As: The new 9N5022 Washer is a direct replacement for the former 4N3371 Washer.
Location of parts.
Caterpillar Information System:
1978/11/20 Sender Unit For Engine Oil Pressure Gauge Moved To New Location On Truck Cab{7455}
1978/11/20 Single Coil Shut-Off Solenoid Used In Place Of Dual (Two) Coil Shut-Off Solenoid{1259}
1978/11/13 6V106 Post, 6V107 Stop And 6V108 Cap Now Available For Parts Service Of The 7S1100 Hose Press Arrangement{0660}
1978/11/06 New Control Cover Gives Better Control Of Exhaust Gas Recirculation System{1080,1250}
1978/11/06 Improvement Made To Solenoid In Electric Shut-Off Group{1259}
1978/10/30 6V92 Plug Socket Is Available For The Removal And Installation Of Lubricant Plugs{0612}
1978/10/30 New Fuel Injection Nozzles Are Used In 3208 Truck Engines When Equipped With EGR{1254}
1978/10/23 In The Future There Will Be A Common Warning System For All Caterpillar Machines{7450,7301,7400}
1978/10/23 5P8690 Fixture Group And 5P8691 Socket Are Available For Easier Reconditioning Of 5M4169 Cam Followers{0622}
1978/10/23 Conversion Of Testers In Earlier 1P3550 Wiring Harness Tester Groups To Use Later Test Harness Assemblies With Receptacle Connections{0650,0651,1408}
1978/10/16 Tips For Service Information Retrieval System (SIRS) Users{0374}
1978/10/16 New Transmission Mounting Group Has Improved Design For Longer Service Life{1150,3000}
1978/11/27 New Hose Has More Resistance To Heat{1074}
1978/11/27 New Coolant Temperature Regulator Has Flat Washer-Type By-Pass Valve{1355}
1978/12/04 Stronger Fan Adjustment Bracket Used In Fan Drive Group{1358,1359}
1978/12/04 Some Force Is Needed To Turn The Drive Shaft In All Tyrone Gear-Type Pumps; New Torque Value For Body Bolts Of Tyrone Gear-Type Pumps{5073}
1978/12/04 New Design Brace Used In 4N2905 Air Cleaner Group{1051}
1978/12/04 New Exhaust Valve Has Improved Three-Piece Construction{1105}
1978/12/04 90° Elbow Added To Air Cleaner Group To Prevent Damage To The Air Filter Service Indicator{1051,7452}
1978/12/11 New Piston Groups Use Keystone-Type Piston Rings And Have Improved Design Of Valve Pockets{1214,1215}
1978/12/11 New Electric Service Meter Used{7480}
1978/12/18 Improved Cylinder Head Gasket Now Used{1101,1201}
1978/12/18 New Switch Assembly Used With Exhaust Gas Recirculation System{1080}
1978/12/18 Longer Bolts Are Now Used To Fasten The Engine Fan Assembly To The Adapter{1356}