1992/04/06 Caterpillar

New PRELUB Systems Available For Medium To Large Caterpillar Construction Equipment {1319}

Usage:

Reference: Salesgram, Form No. IEXQ0221, "PRELUB SYSTEMS FOR MEDIUM TO LARGE CATERPILLAR CONSTRUCTION EQUIPMENT"

The PRELUB system is a specially built electric starter system that automatically builds engine oil pressure in the lubrication system before cranking over the engine to prevent dry starts. Dry starts occur during periods of very hot or very cold weather, or after long periods of shut down. The PRELUB system pumps crankcase oil through the engines's oil filter and into the oil galleries until the oil pressure reaches 48 kPa (7 psi). Then the system automatically cranks the engine. This ensures components such as crankshaft, camshaft, turbocharger, rocker, ets. have lubrication BEFORE cranking the engine. The PRELUB system will also quickly and easily refill oil filters and galleries following routine oil and filter changes.

PRELUB Model 50MT fits Caterpillar engine sizes: 3406B, 3408, 3412, 3508, 3512, 3516.

PRELUB Model 42MT fits Caterpillar engine sizes: 3408B, 3406B, 3406, 3306, 3304, 3208, 3116.

PRELUB Models are also available for some competitive engines.

The PRELUB system is available as a factory installation or a retrofit kit. For additional information contact your Caterpillar Dealer and/or see the Reference.

Caterpillar Information System:

1992/04/06 New Caterpillar Engine Oil Nomenclature {0374,0645,1300}

1992/04/06 Engine Oil Recommendations Have Been Changed {0374,1300}

1992/04/06 9U5839 Liquid Gasket Material Available For Use With Aluminum {0649,0648}

1992/04/06 Procedure For Putting 9U5839 Liquid Gasket Material On Cylinder Liner {1216}

1992/03/23 New Utility Voltage Pickup And Dropout Adjustment Range For Contactor Type Automatic Transfer Switches {4450}

1992/03/23 Rotor Shaft Length Changed {4457,4472}

1992/03/23 Turbocharger Bearings Available For Garrett (Formerly AiResearch) Turbochargers Changed {1053}

1992/03/23 New Electronic Control Groups (Rack Position Sensor And Timing Position Sensor) Provide Increased Reliability {1905,1911}

1992/03/23 Troubleshooting Electrical Noise Problems {1900}

1992/03/23 Unit Injector Test Specifications Have Been Updated {0374,1290}

1992/03/09 New Hose In Turbocharger Oil Lines Group Resists Deterioration Caused By Heat {1307}

1992/03/02 Fuse Blocks Have Been Improved And Are Now Serviced{4450}

1992/04/06 New And Improved Operation And Maintenance Manuals Available {0374}

1992/04/06 New Turbocharger Groups With Ceramic Turbine Wheels Used {1052}

1992/04/06 High Capacity Oil Pan Available {1302}

1992/04/06 New Bracket Assembly Added To Exhaust Manifold Group {1059}

1992/04/13 New Cylinder Kits Available{1213}

1992/04/13 Be Sure 8N2001 Oil Filter Base Is Correctly Installed{1306}

1992/04/20 New Spring Used In Governor Control Groups{1265}

1992/04/20 Changed Pictograph Symbols For EMS and CMS{7490,7400}

1992/04/20 Newer Oil Formulations For Caterpillar Engines{0374,1300}

1992/04/20 Be Sure To Use Correct Installation Procedure For Core Plug Block Heaters (Engine Coolant Heaters){1383}

1992/04/20 Procedure To Repair Damaged Oil Pan Drain Hole Threads{1302}

1992/04/20 Identification Of Remanufactured Direct Injection Fuel Nozzles (DIFN){1254}