1994/12/19 Caterpillar

New Filter Used For Screed Burner And Washdown Systems {1274,5642}

Usage:

AP-1000 (1HD),
AP-1050 (1JG) Asphalt Pavers

Description of Change: The listed pavers may have experienced premature plugging with the in-line fuel filter for the screed fuel system. A new filter is now used with a 25 micron element to reduce the potential for plugging. The former group used a 10 micron filter element. The new filter still provides sufficient filtration for the screed burner and washdown systems.

Adaptable To: The new 119-0072 Filter Group is a direct replacement for the former 1G-7989 Filter Group. The new filter group includes a new 119-0073 Filter Element that is also a direct replacement for the former 112-1150 Element. The new filter group is effective with AP-1000 (1HD98) and AP-1050 (1JG191) Asphalt Pavers.

Location of in-line fuel filter for screed burner and washdown systems. Illustration shows AP-1050 configuration.

Caterpillar Information System:

1994/12/19 Primary Pressure For The Transmission Pressure Control Group Has Been Increased {0374,3150}

1994/12/19 New Screen Assembly Prevents Large Debris From Transferring Into Differential Compartment {4051,3258}

1994/12/19 Small Cracks Around The Holes In The Front Wheels Can Be Repaired By Welding {4201}

1994/12/19 New Roller Bearings Used In The 8E-9034 Transmission Planetary Group To Improve Service Life {3160}

1994/12/12 New Cylinder Blocks Made From Stronger Alloy{1201}

1994/12/12 New Exhaust Bypass Valve (Wastegate) Used In Exhaust Bypass Group{1057}

1994/12/12 Serviceable Parts For Custom Option Engine Prelube Group{1319}

1994/12/12 Injector Solenoids on Engines Equipped with EUI Are Not Polarity Sensitive{1259}

1994/12/12 Caterpillar Hose Press And Tool Usage{5057,0684}

1994/12/12 Procedure To Bleed And Charge The Rear Suspension{7213}

1994/12/12 Procedure For Measuring Oscillating Hitch Wear {7113,7114}

1994/12/05 Dry Start Priming Procedure for 3500 Machine Engines with Electronic Unit Injection (EUI){1250,1258}

1994/12/19 Spacer Plate Is Available To Make Installation Of Permanent Hose Couplings Easier {0684,5057}

1994/12/19 Special Instruction SEHS9734-01 Is Available For Retrofitting R-12 Air Conditioning Systems To R-134a Refrigerant {7320,1809}

1994/12/19 New Connecting Rod Assembly Has Increased Fatigue Strength {1218}

1994/12/19 New Water And Oil Temperature Regulators Available {1330,1355}

1994/12/19 New Electronic Control Group (Throttle Position Sensor) Has Improved Contact Design {1913}

1994/12/26 New Engine Oil Pressure Gauge And Sender {7455}

1994/12/26 New Bearing Housing Used In Turbocharger Group {1056,1052}

1994/12/26 Information Release Memo PELE0401 Has Information About Remanufactured Hydraulic Piston Pump And Piston Motor Groups {0374,4134,4136,4351,5058,5070,5080,5314,5315,5473}

1994/12/26 New Oil Tube Clamp Assembly Is More Durable and More Resistant to Leakage {1307}

1995/01/16 Special Instruction SEHS9429-01 Available for Spherical Bearings for Bulldozers and Rippers{7551,6050,6313}

1995/01/16 Fuel Injection Pump Change{1251}

1995/01/16 R-134a Refrigerant Used For Air Conditioner Charge{1802,1805}