Improved Tach Drive Adapter Has Step In Shaft To Keep Coupling Engaged{0651,0653}
Usage:
The 1W2316 Tach Drive Adapter Assembly is now used in the 5P8687 Tee Test Tool Group.
This new adapter has a step in the drive shaft. The step holds the 4N538 Coupling in position without the use of a 5P537 Washer which was used as a spacer.
The former 9N3018 Tach Drive Adapter Assembly did not have a step in the drive shaft. At times it was possible for the 4N538 Coupling to disconnect from the engine drive shaft.
The arrows (marks) show the step in the drive shaft in this section drawing of the new 1W2316 Tach Drive Adapter Assembly.
Caterpillar Information System:
1981/01/26 Ways To Prevent Damage To Spark Ignited Industrial Engines When Hydrogen Sulfide Is Present In The Fuel{1000,1280,1318,1350}
1981/01/19 Be Sure You Assemble The Turbocharger Lubrication Valve Correctly{1309,1052,1300}
1981/01/19 Green Dye (Color) Added To Transmission Oil For Easier Identification Of Leaks{3004,3067,3179}
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}
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}
1981/02/02 Aluminum Identification Plate No Longer Used On Torque Converters; Identification Numbers Put Directly On Converter Housing{3101}
1981/02/02 Elbow With Orifice Now Used In Regulator And Housing Groups For Cooling Systems{1355,1361}
1981/02/02 New Camshaft Has Improved Profile (Shape) Of Exhaust Cam To Extend Service Life{1210}