1985/08/26 Caterpillar

Dual Element Air Cleaner Group Available{1054,1051}

Usage:

All 3500 Marine, Generator Set, Industrial Engines

Description of Change: A dual element air cleaner group is available as an attachment for the above engines. The dual element air cleaner offers better protection in dusty conditions than standard single element air cleaners. The use of a dual element air cleaner will not change the outward appearance or the external dimensions of an engine.

The dual element air cleaner can be retrofitted to any 3500 Series Engine equipped with a canister-type air cleaner.

Adaptable To: The 5N7822 Air Cleaner Group can directly replace the single element 8N3378 Air Cleaner Group. To replace the single element 8N3378 Air Cleaner Group with the dual element 5N7822 Air Cleaner Group on all 3508, 3512, and 3516 Engines, use the parts listed in the chart.

Caterpillar Information System:

1985/08/26 Improved Front Gear Housing Assembly Used In Engine Front Housing Group{1151}

1985/08/19 New Camshaft Installation Tools Available{0600}

1985/08/19 New Address And Phone Number For Ordering Fabricated Tool (FT) Drawings{0600}

1985/08/19 Improvements Made To Spark Ignited Engines{1100,1104,1105,1207}

1985/08/19 New Format For Some Special Instructions{0300}

1985/08/12 Thread Lock Now Used On Timing Advance Bolts{1272}

1985/08/12 The 8T3115 Portable Track Lubricator Can Be Used To Drain And Fill Track Link Joints{0645,4169,4170}

1985/08/12 Halogen Head And Flood Lamps Are Now Available{7309}

1985/08/12 Location Of 6V5135 Setscrews In Fuel Pump Group{1250}

1985/08/12 Eliminating Interference Between Governor Housing And Tachometer Drive{1264,7487}

1985/08/12 Tachometer Drive Is Now An Attachment{1166,1250,7450,7452,7487}

1985/08/05 Correct Operation Of Disconnect Switches{1411}

1985/09/02 Repair Kits Available For Air Actuator Used In Governor Control Groups{1250}

1985/09/02 Adjusting Pneumatic Speed Control For Correct Operation{1264}

1985/09/02 New Engine Pressure Group Available{0600,0770,0781}

1985/09/02 New Precombustion Chamber Seal Available{1106,1100}

1985/09/02 Use Correct Valves When Rebuilding Engines{1105,1103}

1985/09/02 Check Fuel Injection Nozzles In Overheated Engines{1254}

1985/09/02 Steel Fuel Pump Lifter Used{1250,1251}

1985/09/02 Fumes Disposal Group Improved{1317}

1985/09/16 Oil Pump Groups Improved {1304}

1985/09/16 New Tools Available To Change BrakeSaver Control Valve Diaphragm {0600,1155}

1985/09/16 Changes To Fuel Systems {1250,1251,1252,1253,1254,1100}

1985/09/16 Pressure Switch Has Been Improved {1419,7332}