1995/08/14 Caterpillar

Wear Sleeve Removal Tooling May "Mark" The Crankshaft{1202,1161}

Usage:

Caterpillar Machines Powered By 3406, 3408, And 3412 Machine Engines

When the engine's rear crankshaft seal is replaced, it is possible to "mark" the crankshaft with the wear sleeve removal tooling. These marks can be created if the wear sleeve distorter tool is inserted too deep past the wear sleeve. When the tool is inserted too far, the tool can contact the crankshaft shoulder that positions the wear sleeve on the crankshaft. These marks may also be found on remanufactured 3400 crankshafts. These marks do not reduce the strength or service life of the crankshaft.

Remanufactured 3400 crankshaft core credit acceptance criteria will not be influenced by these marks, that are caused by the correct wear sleeve removal tool. 3400 crankshafts damaged with chisel marks, that have resulted from wear sleeve removal, will continue to be rejected.

Caterpillar Information System:

1995/08/14 New Exhaust Manifold Group Helps Prevent Exhaust Manifold Cracking{1059}

1995/08/14 New Indicator For Hydraulic Charge Filter Prevents Leakage{5068}

1995/08/14 Parts Service Information For Articulated Trucks Equipped With Wide Gears In The Final Drive And A Spacer Between The Wheel Assembly And Planetary Carrier{4055,4051}

1995/08/14 New Components In Water Lines Groups And Aftercooler Group Allow Field Installation Of Variable Speed Fan Clutch Vital Information Management System (VIMS){1380,1063,1359}

1995/08/14 Hood Grill Improved With Enlarged Inserts{7251}

1995/08/14 New Axle Sustains Higher Dynamic Loads{3282}

1995/08/14 Reattaching Grommets To 3E-9167 And 3E-9170 Machine Performance Panels{7490}

1995/08/07 Injector Solenoids on Engines Equipped with EUI Are Not Polarity Sensitive{1259}

1995/08/07 Improved 1U-7430 Front Crankshaft Seal Installer Available{1160}

1995/08/07 Selecting The Correct Turbocharger, Wastegate Orifice, And Personality Module For 3500 Engines Used In 793B Trucks{1052,1057,1902}

1995/08/07 Selecting The Correct Turbocharger And Wastegate Orifice For 3500 Engines Used In 793 Trucks{1052,1057}

1995/08/07 Improved Payload Measurement System Pressure Sensors{7494,1901}

1995/08/14 New Piston Crown Assembly Used In Piston And Rod Group{1214}

1995/08/14 Piston Usage Chart For Two Piece Pistons{1214}

1995/08/14 Remanufactured 3500 Engine Core Return Requirements{1000}

1995/08/21 Low Friction Wear Ring Is Available For The Front Suspension Cylinders To Help Reduce Vibration{7201}

1995/08/21 Driveshaft Dust Cups Now Serviceable{3253}

1995/08/21 Improved Level Switch Available{7422}

1995/08/21 Recommendations For Inspection And Replacement Of Rubber and Viscous Crankshaft Dampers{1205}

1995/08/21 New Service Repair Camshaft Idler Gear Shaft Available For Use With Cylinder Blocks With Damaged Pilot Bore{1206,1212,1237}

1995/08/28 New Cylinder Head Group Includes Stronger Cylinder Head{1100,1101}

1995/08/28 New Steering Accumulator Charging Valve Group Is Being Used To Improve Service Life{4307}

1995/08/28 Special Instruction SEHS9879 Available For Installing An Air Cooling Coil For The Air Dryer On Articulated Trucks {4285}

1995/08/28 Adding Vibratory Lock Out Function In Vibratory System{1435,3220,5653}