1985/05/13 Caterpillar

New Oil Pressure And Water Temperature Alarm Contactor Group Used{7400,7407,7417}

Usage:

3208 Marine Engines

Description of Change: A new oil pressure and water temperature alarm contactor group is used on 3208 Marine Engines. The new group has different oil pressure and water temperature alarm points than the former group. Formerly, the low oil pressure alarm was activated when the oil pressure decreased to 82.8 kPa (12 psi) and the high water temperature alarm was activated when the water temperature reached 98.3°C (209°F). With the new group, the low oil pressure alarm is activated when the oil pressure decreases to 62 kPa (9 psi) and the high water temperature alarm is activated when the water temperature reaches 101.6°C (215°F). The new alarm activating points will help eliminate unnecessary alarms.

Adaptable As: The new 7W1038 Oil Pressure And Water Temperature Alarm Contactor Group is in effect on 3208 Marine Engines 1Z4960. The new 7W1038 Oil Pressure And Water Temperature Alarm Contactor Group is a direct replacement for the former 3N5835 Oil Pressure And Water Temperature Alarm Contactor Group used on 3208 Marine Engines. The new 7W1038 Oil Pressure And Water Temperature Alarm Contactor Group contains a 9G8011 Oil Pressure Switch Assembly and a 7W872 Water Temperature Contactor. The former 3N5835 Oil Pressure And Water Temperature Alarm Contactor Group contained a 2N2240 Oil Pressure Switch and a 5N8597 Water Temperature Contactor.

Caterpillar Information System:

1985/05/13 Hydramechanical Governor Fuel Setting Information{1289,1250}

1985/05/06 Remanufactured Fuel Ratio Controls Are Available In U.S. And Canada{1278,7754}

1985/05/06 Be Sure Correct Piston Rings Are Used On 3400 Series Engines{1215,1214}

1985/05/06 New Clamp Added To Right Hand Instrument Panel Fuel Filter Differential Lines Group{7451,7456,7450}

1985/05/06 New Governor Drive Group Has Longer Service Life{1289,1264}

1985/05/06 System To Find Internal Fuel Leakage{1250}

1985/05/06 New Bearing Housings Available For Turbochargers{1052,1053,1056}

1985/05/06 New Battery Cable Crimping Die Available{0600}

1985/05/06 Exhaust Manifolds Now Use Locks And High Temp Bolts{1050,1059}

1985/04/29 Visual Inspection Can Detect Chrome Plated Engine Valves{1105}

1985/04/29 Special Pricing On Metric Hand Tools For U.S. And Canada Only{0600,0601,0602}

1985/04/29 Extended Oil And Oil Filter Change Intervals{1300,1318}

1985/05/13 Improved Remote Shutoff Group Has New Pressure Control Group{1050,1078,1085}

1985/05/13 Check For Interference Between Water Temperature Regulator And Cylinder Head Bore{1355}

1985/05/20 Incorrect Air Compressor Installation Can Cause An Early Failure{1800,1803,1804}

1985/05/20 Air Conditioner Compressor Mounting Bracket Improved{1802}

1985/05/20 New Spark Resistant Air Starting Motor Group Has Serviceable Parts{1451}

1985/05/20 New Temperature Recorder Group (Crayons) Indicate Surface Temperature{0776}

1985/05/27 Rebuilt Axial Piston Pumps{5070}

1985/05/27 Remanufactured Bare Cylinder Heads (U.S. And Canada){1101,7754}

1985/05/27 Use Caterpillar 6V50 Engine Timing Indicator For Accurate Readings{0782,0785,0775}

1985/05/27 Obtaining Correct Bolt Torque On Ground Engaging Tools{6800,7553}

1985/05/27 Correct Procedure To Check Tapered Bearing End Clearances{7551,3257,3300,3000}

1985/06/03 Improved Serviceability Of Water Cooled Exhaust Manifolds{1350,1355}