Exhaust Clamp Nut Now Serviced Separately
Usage:
3408, 3408B, 3412 Industrial And Generator Set Engines
Description of Change: The nuts used on the 8N878, 8N879, and 8N4401 Clamps are now serviced separately. Formerly, the nuts used on these clamps were not available and if a nut was needed, it was necessary to order a complete clamp.
Adaptable To: The 8T193 Nut (5/16"-24 Thd.) is used on 8N4401 Clamps. The 8T122 Nut (1/4"-28 Thd.) is used on 8N878 and 8N879 Clamps.
Caterpillar Information System:
1985/03/01 Over Fueling Spring No Longer Used In Governor
1985/03/01 A New Book "Analyzing Diesel And Natural Gas Engine Valve Failures" Is Available
1985/03/01 New Service Tools Available
1985/02/01 1985 Customer Training Available At Caterpillar Dealers (North America)
1985/02/01 Tighten Bolts To Correct Torque In 3161 Governor
1985/02/01 Only The External Needle Valve Can Be Adjusted On Woodward EG3PC Or EG10PC Actuators
1985/02/01 New Air Cleaner Groups And Valve Mechanism Cover Group Used
1985/02/01 Wiring Harness Conduit Component Sizes
1985/02/01 New Temperature Recorders Available
1985/02/01 New Rear Crankshaft Seal Has Longer Service Life
1985/02/01 New Service Tools Available
1985/02/01 Install Crankshaft Thrust Bearings Correctly To Avoid Damage
1985/03/01 Do Not Weld On Painted Surfaces
1985/03/01 New Pressure Conversion Chart Available
1985/03/01 Bleed Holes On Parts Service Cylinder Heads
1985/03/01 New Cooling System Temperature Regulator Available
1985/03/01 Use The Correct Oil In Natural Gas Engines
1985/03/01 New Drive Coupler Kit Used On Altronic Magneto
1985/03/01 New Crankshaft Seal Groups Used On More 3400 Series Engines
1985/03/01 Increased Preload Used In Air Shutoff Actuators
1985/03/01 New Transmission Control Valve And Pressure Relief Valve Are Used With High Flow Oil Pump
1985/03/01 Input Shaft And Flange Available As An Assembly; Makes Alignment Easier
1985/03/01 Dowtherm 209 Full-Fill Coolant
1985/03/01 Cross Link Between Fuel Racks Has Smoother Surface