1991/09/30 Caterpillar

Excessively Long Bucket And Ripper Tips May Cause Failures{6800}

Usage:

All Ground Engaging Tools (G.E.T.)

Reference: Service Warranty Bulletin, SELD0751 "Ground Engaging Tools"; Caterpillar Warranty, SELF5138 "Ground Engaging Tools".

Caterpillar bucket tips and adapters are designed for optimum load carrying characteristics with a minimum of breakage. It is desirable, however, for the tip to fail when excessive loads are imposed on the bucket, rather than the more costly adapter. Longer competitive tips have been introduced to the field that could abuse bucket systems. While designed to provide more wear life, these tips, in some customer applications, may exert excessive bending loads on the adapters and base edges, exceeding their design strength.

Likewise, there are some longer tips available for rippers which, just as with buckets, can stress adapters to higher than designed for loads, accelerating wear out or fatigue fracture.

The use of these longer tips, can cause premature adapter, weld or base edge failures and falls within the limitation of "Improper Use Or Installation" as defined in the Ground Engaging Tool Warranty SELF5138. Customers, therefore, should be aware that failure of Caterpillar G.E.T. components caused by the use of these longer competitive tips, will not be warranted.

Caterpillar Information System:

1991/09/23 New Auxiliary Water Pump Groups Used{1371}

1991/09/23 New Pickup Assembly In Sump Pump Group Attachment Removes More Oil From Oil Pan{1324,1302}

1991/09/23 New Piston Skirt Used In Piston Group{1214}

1991/09/23 New Tube Assembly Used In Exhaust Bypass Group Attachment{1057}

1991/09/23 Sintered Bronze Replacement Bushings For Delco-Remy Electric Starting Motors Do Not Require Machining{1453,1454,1465}

1991/09/23 Turbocharger Bearings Available For Garrett (Formerly AiResearch) Turbochargers Changed{1053}

1991/09/23 Self-Exciting Alternator May Not Charge After Periods Of Storage{1405,1406}

1991/09/16 New Cylinder Block And Crankshaft Used{1201,1202,1231}

1991/09/09 New Camshafts Provide Increased Power, Reduced Fuel Consumption, Reduced Exhaust Temperature, And Reduced Emissions{1210}

1991/09/02 New Flange Assembly And O-ring Seal Prevent Oil Leakage Between Magneto And Magneto Drive Housing{1552,1556}

1991/09/02 Fuel Nozzle Orifice Erosion{1254,1250}

1991/09/02 Fuel System Parts Information{1251,1264,1250}

1991/09/30 Updated List Of Charts And Decals Available For Lubrication And Maintenance Intervals{0374,0375,7500,7557,7581}

1991/09/30 "Off-Size" Bearing Kits Available For Parts Service{1052,7551}

1991/09/30 Compression Ratio Increased On Remanufactured OR1094 & OR1095 Engines To Reduce Amount Of White Smoke On Cold Weather Start-Ups{1000,1254,1290}

1991/09/30 Air Filter Maintenance{1051,1054}

1991/09/30 Use 7E5888 Fuel Injection Pump Housing As A Service Replacement For Pre 1991 Fuel Injection Pump Housings{1253}

1991/09/30 New Piston Crown And Piston Skirt Used In Basic Piston Group; New Cooling Jet Used In Cylinder Block Group{1214,1331}

1991/10/07 Assembly Procedure For Duo-Cone Seals Changed{7561,0645}

1991/10/07 New SR 4 Generator Rewind Data Available{4450}

1991/10/14 New Locking Bolt Used In Flywheel Groups{1156}

1991/10/14 New Teflon Coated 4P9388 Cylinder Seal Available{1216}

1991/10/14 New Components Used In Fuel Injection Pump Groups{1290}

1991/10/14 7S3161 Valve Lifter Has Three Different Designs{1209}