New Pulley Group With Tapered Bearings
Usage:
3204 Industrial Engines
Description of Change: A new pulley group is used in the fan belt tightening groups on the above machines. The new pulley group uses tapered roller bearings instead of the ball bearings used with the former design. The roller bearings give the pulley group an improved service life.
Adaptable As: The new 4W3519 Pulley Group is a direct replacement for the 8N6966 Pulley Assembly, which is canceled. The new group uses a 6V9340 Bearing Assembly.
Caterpillar Information System:
1984/06/20 List Of Service Publications
1984/06/20 Changes Made To Air Shutoff And Rack Shutoff Groups
1984/06/20 New Air Start And Override Valve Has Stronger Mounting
1984/06/20 New Bearing Race Is Used On The Auxiliary Drive
1984/06/20 Improved Valve Used In Air Starting Lines Groups
1984/06/20 Borescope And Light Source Available For Internal Inspection Of Passages On Most Caterpillar Products
1984/06/20 New Speed Setting Motor Assembly On Woodward PSG Governor Has More Resistance To Moisture And Vibration Damage
1984/05/16 New Valve Assembly And Seal Used In Fuel Transfer Pump
1984/05/16 New Seal For Fuel Injection Pump Housing Is More Resistant To Heat Damage
1984/05/16 New Recommendation For Oil Hole Location During Installation Of Camshaft Bearings
1984/05/16 Only The External Needle Valve Can Be Adjusted On Woodward EG3P or EG10P Actuators
1984/05/16 New Hoses In Water Lines Group Give Better Performance At Higher Temperatures; New Hose Clamps Also Used
1984/06/20 Improved Cylinder Head Gasket
1984/06/20 Different Thread Lubricant Can Be Used On Connecting Rod And Counterweight Bolts
1984/06/20 New Cylinder Head Has Larger Mounting Holes For The Lifting Brackets
1984/06/20 Excessive Oil Consumption: Check The Accuracy Of The Oil Level Gauge
1984/06/20 Remanufactured Oil Pumps Available
1984/07/11 Procedure To Clean Oil Passages In Crankshafts And Cylinder Blocks
1984/07/11 Modification To FT1488 Exciter Tester Group Allows Testing Of All Small Frame SR4 Generators
1984/07/11 List Of Service Publications
1984/07/11 Surface Grinding Of Compacted Graphite Iron Cylinder Heads
1984/07/11 New Relief Valve Guide Used In Oil Pump
1984/07/11 New Disassembly And Assembly Tools Available For Fuel Ratio Controls
1984/07/11 New Rear Crankshaft Seal Group Used