1999/02/08 Caterpillar

New Engine Pressure Sensors Available {1916,1917,1922,1923,1924}

Usage:

777B (4YC),
777C (4XJ),
777D (3PR, 2YW),
785 (8GB),
785B (6HK),
785C (1HW, 5AZ),
789 (9ZC),
789B (7EK),
789C (2BW),
793 (3SJ),
793B (1HL),
793C (4AR, 4GZ) Off-Highway Trucks;
776B (6JC),
776C (2TK),
776D (5ER),
784B (5RK),
784C (2PZ) Off-Highway Tractors;
854G (1JW) Wheel Tractors;
D11N (74Z, 4HK),
D11R (8ZR, 9TR, 9XR) Tractors;
992G (7HR),
994 (9YF) Wheel Loaders;
5130 (7TJ, 5ZL),
5130B (4CS),
5230 (7LL) Excavators

Description of Change: The new engine pressure sensor groups provide increased protection against high voltage spikes and increased protection against moisture entry. These improvements will increase the sensor service life.

Adaptable To: The chart lists the new and former engine pressure sensor part numbers and the sensor uses.

Caterpillar Information System:

1999/02/08 Valve Bodies Now Stress Relieved To Improve Service Life {3167}

1999/02/08 C-Series Backhoe Loaders Are Being Updated {1000,5077,6501,6504}

1999/02/08 New Inching Modulation Valve And Cable Prevents Oil Leakage {3162,3167}

1999/02/08 Acceptable Welding And Drilling Locations On ROPS Cab {7325}

1999/02/08 New Brake Air Pressure Switch Has Increased Service Life {1432}

1999/02/01 Procedure For Assembly And Installation Of Conventional Duo-Cone Seals Is Now Available{7561}

1999/02/01 New Pulse Width Modulated Brake Sensor Now Available{4800}

1999/02/01 New Asphalt Deflector Kit{6630,6631}

1999/02/01 Procedure For Propel Pump Neutral Adjustment For AP-1055B/BG-2455C{3108}

1999/02/01 Procedure For Propel Pump Neutral Adjustment For Rubber Tire And Steel Track Asphalt Pavers{3108}

1999/02/01 New Service Information Available For Forest Products{0374,0375}

1999/02/01 Bearing Specifications For 3408E And 3412E Hydraulically Actuated Electronically Controlled Unit Injector (HEUI) Hydraulic Drive Group{1714}

1999/02/08 Supplemental Steering Self Test Changed On New D-Series Trucks {4323,4343}

1999/02/08 New Valves Improve Harvester Head Service Life {0587}

1999/02/08 New Feeder Control Group Available for Certain Paver Models {5643}

1999/02/08 New Battery Increases Starting Power {1401}

1999/02/08 Supports On Accelerated Pre-Separation Group Are Now Serviced {6934}

1999/02/08 Correct Seal Usage Improves Service Life {7555}

1999/02/08 New VIMS Application Guide Available {7601,0374}

1999/02/15 Spacers Now Used On 1R-1210 Midwheels {4192,4150}

1999/02/15 Special Instruction, REHS0151-01, Available For Procedure For Reinforcing And Bolting On Guide Blocks {4198}

1999/02/15 Supplement To Correct Seal Ring Positioning {3159,7555}

1999/02/15 New Right Side Platform Design Will Reduce Cracking Between Platform And Cowling {7253}

1999/02/15 Thrust Buttons For Planetary End Housing Assembly Salvage Now Available {3150,3169}