Add Chamfer To Cartridge Assembly Bearings To Prevent Oil Leakage
Usage:
3304 Industrial and Marine Engines;
3306 Industrial, Marine and Truck Engines;
Equipped with Schwitzer 3LM Turbochargers
There have been reports of oil leakage at the oil seal on the turbine end of Schwitzer 3LM Turbochargers. If any of the above models have this type of leakage, check the 6N1533 Bearings of the cartridge assembly.
These bearings must have a small chamfer on each end. If there are no chamfers, the result can be oil leakage. A modification can be made to any 6N1533 Bearing as shown in the Illustration. This same modification can also be made to parts stock 6N1533 Bearings.
Modification of 6N1533 Bearing.
Caterpillar Information System:
1977/12/14 Excessive Oil Consumption Can Be Caused By Dirt In Air Inlet System Or By Flaking Of The Piston Compression Ring
1977/12/14 Water Separators Needed On Engines In The Field With SMFS
1977/12/14 List Of Service Publications
1977/12/14 New Coolant Tube And Regulator Housing Used With Water Cooled Exhaust Manifold Gives More Clearance For Hooks To Lift The Engine
1977/12/14 Separate Parts Of Oil Pump Cover Now Available
1977/12/14 Improved Mounting Base For Air Compressor
1977/11/30 New Fuel Injection Valve Assembly Has Improved Internal Components
1977/11/30 New Oil Filter Base Has Reinforcement Around The Center To Prevent Possible Cracks
1977/11/30 Reference Chart For Main And Connecting Rod Bearings
1977/11/30 Larger Diameter Holes Are Now Used In The Rocker Arm Shaft To Give More Oil Flow To Rocker Arm Bearings
1977/11/30 New Housing And Impeller Assembly For Water Pump And Drive Group
1977/11/30 New Elbow Between Turbocharger And Air Inlet Manifold Has Hole For Ether Starting Aid
1978/01/18 Maintenance Instructions For Coolant Conditioner Elements
1978/01/18 Improved Front Pulley And Damper Groups Use New Damper Adapter With Larger Diameter Bolt Circle For Pulley Bolts
1978/01/18 Improved Water Shield For Exhaust Manifold
1978/01/18 New Turbine Housings Are The Replacement For Three Former Turbine Housings Used On Schwitzer Turbochargers
1978/01/18 Improved Water Pump Group Now Used
1978/01/18 Improved Seal Used Between Impeller And Bearings On Water Pump Shaft
1978/01/18 List Of Service Publications
1978/01/18 Valve Damage Can Be Caused By Short Intervals Of Engine Operation In Very Cold Temperatures
1978/01/18 Inner Member Of Caterpillar Coupling Must Be Restrained If The Connection To The Inner Member Is Removed
1978/01/18 Tolerance Added To Valve Clearance Specifications
1978/01/18 Turbine Housing For Turbocharger Is Stronger
1978/01/18 5P8665 Cylinder Liner Puller Makes Liner Removal Easier And Faster