1994/02/07 Caterpillar

New Piston Body Has Improved Bonding Between Iron Band And Aluminum Body{1214}

Usage:

375 (8XG, 8WJ, 6NK, 6RL, 9WL, 1JM),
245B (6MF, 1SJ),
245D (7ZJ, 4LK) Excavators;
RM-350 (5FK) Reclaimer Mixer;
SM-350 (1RM) Stabilizer Mixer;

Description of Change: A new improved piston body is used in the above machines and engines. The new piston body has improved retention of the iron band (ring carrier) to the aluminum body. This will help prevent separation of the iron band from the aluminum body.

Adaptable To: The new 113-6045 Piston Body Assembly is a direct replacement for the former 7E-0489 Piston Body Assembly. The former piston body assembly is canceled. The new 113-6045 Piston Body Assembly is in effect with the 3406B Engine 11N8640 in Caterpillar Machines.

NOTE: If a former 7E-0489 Piston Body Assembly fails due to a separation between the iron band and the aluminum body, replace all six pistons with new 113-6045 Piston Body Assemblies.

The new piston body assembly is adaptable to the following machines powered by 3406 Machine Engines 11N1-8639:

245B Excavators 6MF513-Up and 1SJ713-Up.

245D Excavators 7ZJ1-Up and 4LK1-UP.

375 Excavators 8XG1-Up, 8WJ1-Up, 6NK1-Up, 6RL1-Up, 9WL1-Up, and 1JM1-Up.

RM-350 Reclaimer Mixer 5FK1-Up.

SM-350 Stabilizer Mixer 1RM1-UP.

Caterpillar Information System:

1994/01/31 Automatic Shut-Off Systems Not Recommended on Mobile Earthmoving Equipment {7418,7403}

1994/01/17 Low Coolant Level Plate In Radiator May Cause False Coolant Level Readings {1353}

1994/01/17 New Valve Cover Gasket Used {1107}

1994/01/17 New Control Assemblies Used In Fuel Injection Control Groups {1298}

1994/01/17 9X6779 Radio Has No Memory {7338}

1994/01/10 New Diaphragm Used In Governor Air Actuator Group Improves Service Life{1265}

1994/01/10 The 1W-1420 Oil Cooler Bracket For Marine Gears Has Been Modifie{3320}

1994/01/10 Clarify Usage Of Parts Service Cylinder Head Gaskets{1124}

1993/12/27 Double Shielded Bearings Released {4471}

1993/12/27 Cleaning SR4 Generators {1404,4450}

1993/12/20 New Inlet/Exhaust Valve Has A Chrome Stem {1105}

1993/12/20 Carburetor Control Linkage (EG3P Governor) {1265}

1994/02/07 12 And 24 Volt DC Work Lights Are Available{0600}

1994/02/07 New Turbocharger Groups And New Turbocharger Cartridge Groups Have Improved Thrust Bearing And Turbine Ring Seal{1052,1053}

1994/02/07 Cylinder Head Gaskets Improved To Provide Better Fire Ring Retention{1124}

1994/02/07 Fuel Injection Pump Improvements{1251}

1994/02/21 Servicing Lighted Rocker Switches {1435}

1994/02/28 Soldering Iron Available For Field Use {0709,1400}

1994/02/28 New Retaining Compound Is Available {0649}

1994/02/28 New Turbocharger Models Have Left-Hand Threads On Compressor Nut And Turbine Shaft {1053,1052}

1994/03/14 Articles Pertaining To Commercial Engines Or Truck Engines {0374}

1994/03/21 New Seal Used In Air Lines Group {1058}

1994/03/21 The Ninth Edition Of The Lubricating Oils Data Book Is Available From The Engine Manufactures Association (EMA) {1318}

1994/03/28 Improved 1R-0712 Fuel Filter Provides Improved Sealing{1261}