1998/08/01 Caterpillar

New Steel Thrust Plate Replaces Bronze Thrust Plate In Hydraulically Actuated Electronically Controlled Unit Injector (HEUI) Pump Drive Groups {1714}

Usage:

3408E (7PR),
3412E (4CR) Industrial Engines

Description of Change: A new steel thrust plate is used in the Hydraulically Actuated Electronically Controlled Unit Injector (HEUI) pump drive groups on these engines. The new steel thrust plate provides greater strength to resist breakage in high load applications. A broken thrust plate can result in the loss of the speed timing signal.

Adaptable To: The new 150-2392 Thrust Plate (1) and 9N-0869 Washers (2) replace the former 124-6639 Thrust Plate and 9M-1974 Washers in the 125-3427 and 125-3430 HEUI Pump Drive Groups on 3408E (7PR) and 3412E (4CR) Industrial Engines respectively. The former 124-6639 Thrust Plate is canceled.

Location of the new 150-2392 Thrust Plate and 9N-0869 Washers in the HEUI pump drive groups.

Caterpillar Information System:

1998/08/01 3116 And 3126 Marine Engine Oil Requirements And Air System Maintenance {1318,1050}

1998/08/01 Lower O-Ring Seal Removed From Hydraulically Actuated Electronically Controlled Unit Injector (HEUI) Groups {1290}

1998/07/01 Circuit Breakers Are Changing From Red To Blue Reset Buttons {1420}

1998/07/01 Gas Engine Technical Publications {0374}

1998/07/01 Effects Of Corona On Spark Plugs {1555}

1998/07/01 New Main Bearing Studs With Oversize Thread Available {1224}

1998/07/01 New Special Instruction Available To Replace The Standard Aftercooler With The High Performance Aftercooler {0374}

1998/07/01 Special Instruction About Installation And Commissioning Procedures For The 3600 Marine Monitoring System Available {0374,7490}

1998/07/01 New Counterweight Bolt Assembly Replaces Bolt And Washer {1231}

1998/07/01 New Remanufactured 3500 Engine Connecting Rod Results From Improved Remanufacturing Processes {1218}

1998/07/01 Use The Correct Procedure For Installation Of Cylinder Head Bolts {1100,7553}

1998/07/01 Thicker Flanges Provide Improved Sealing In Turbocharger Group {1052}

1998/08/01 Piston And Piston Ring Reference Chart For 3500 And 3500B Engines {1214,1215}

1998/08/01 New Piston Rings Provide Increased Service Life {1215}

1998/08/01 The Causes Of Worn And Broken Piston Rings {1215}

1998/08/01 New Special Instruction Available To Serve As A Guide For Installing The 7E-3100 Treated Water Aftercooler Group {0374,1063}

1998/08/01 Reference For Translated 3600 Diesel Engine Service Publications {0374}

1998/08/01 New Exhaust Manifold Shield Group Compatible With High Performance Aftercooler (HPAC) {1067}

1998/08/01 New Main Bearing Used {1203}

1998/08/01 Procedure To Shut Off Oil Mister Pump {1304}

1998/08/01 Procedure For Installing Resistive Temperature Detector (RTD) {7566}

1998/08/01 Improved VR3 Regulators Available For Self-Excited Generators {4450}

1998/08/01 Correction To Service Manual Module, RENR1260, Electronic Modular Control Panel II (EMCP II) For EUI Engines {4490}

1998/09/01 New Basic Water Pump Groups Used In Engine Water Pump Groups {1361}