1995/08/14 Caterpillar

New Exhaust Manifold Group Helps Prevent Exhaust Manifold Cracking{1059}

Usage:

814B (16Z348-UP) Wheel Tractors;
815B (17Z1478-UP),
816B (15Z1360-UP) Compactors;
966F (1SL239-UP) Wheel Loaders

Description of Change: A new exhaust manifold group is used on the 3306 Engine in these machines. The new group includes a three piece exhaust manifold. Formerly, a single piece exhaust manifold was used. The new manifold group will help prevent cracks that may result from temperature cycles.

Adaptable To: The new 7W-8582 Exhaust Manifold Group replaces the 2P-6573 Exhaust Manifold Group on the above machines. These groups are not serviced at the group level. The individual components of the 7W-8582 Exhaust Manifold Group are:

One 7W-8583 Manifold

One 7W-8584 Manifold

One 7W-8585 Manifold

Three 9Y-1979 Gaskets

The new components, when used together, are direct replacement for the 9S-2354 Manifold and 9Y-1979 Gaskets in the 2P-6573 Exhaust Manifold Group.

Caterpillar Information System:

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}

1995/08/07 Description Of Service Code Information{7450,7569}

1995/08/14 Wear Sleeve Removal Tooling May "Mark" The Crankshaft{1202,1161}

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}