1979/10/01 Caterpillar

Steel Plates Are Now Used To Hold The Element In Position In The Panel-Type Air Cleaner Housing Assembly{1051,1054}

Usage:

3406, 3408 and 3412 Industrial and Marine Engines

Description of Change: Steel plates are now used in the housing assembly in panel-type air cleaners for the 3406, 3408 and 3412 Engines. Three plates are used to keep the air filter element in the correct position. Formerly, three rubber pads were used to keep the filter element in position. Heat and vibration some times caused these pads to move. This permitted the filter element to move out of position and let dirt get into the engine. The steel plates are fastened to the air cleaner housing with tack welds.

Adaptable As: Three 5D5678 Plates are a direct replacement for the three pieces of 5P0801 Seal Stock, when used in this application.

Dimensions to install three 5D5678 Plates in air cleaner housing assembly.

Caterpillar Information System:

1979/10/01 New Liner Seat Inserts For Spacer Plate Cylinder Blocks Are Made Of Stainless Steel{1217,1201,0663}

1979/09/24 Cranking Speeds Necessary To Start Diesel Engines{0374,1000,1450}

1979/09/24 8S9901 Tool Cart Can Be Adapted To Hold Both The 5P3600 Hydraulic Flow Meter Group And The Tools Used With It{0651}

1979/09/17 6V2042 Alignment Yoke And 6V2043 Alignment Bar Available{0653,3305,4450}

1979/09/17 New Bracket Available For Installation Of Jacket Water Heater{1383}

1979/09/17 Improved Sea Water Pump Now Used{1361,1371}

1979/09/17 Raw Water Pump Improved{1371}

1979/09/17 Keystone Piston Groups Can Be Installed In Earlier Engines In Steiger Tractors{1214,1215}

1979/09/17 New BrakeSaver Control Valve Group Has Improved Diaphragm{1159,1155}

1979/09/17 New Main And Connecting Rod Bearings Have A Thicker Layer Of Surface Material{1230,1203,1219}

1979/09/10 Engines Can Use Crankshafts With Either Six Or Eight Counterweights {1202}

1979/09/10 Pin Bore Is Now Offset (Not In The Center) .059" (1.5 mm) In The Piston To Stop Vibration Of The Cylinder Liners Which Can Cause Pitting On The Coolant Side Of The Cylinder Liners {1214,1216}

1979/10/01 Tips For SIRS (Service Information Retrieval System) Users{0374}

1979/10/01 New Aftercooler Core Has Stronger Construction And Corrosion Resistance{1064}

1979/10/01 New Planet Gears For Power Shift Transmissions And/Or Winches Have No Oil Grooves On the Faces{3176,5165}

1979/10/08 Warning: Excessive Heat Can Cause A Tire Explosion{4203}

1979/10/08 Fast Fuel Delivery Couplings And Fast Oil Change Couplings Are Available For All Caterpillar Equipment{0671,1273,1279,1325}

1979/10/08 New Hydromechanical Shut-Off Is Available{7418,7403}

1979/10/08 Supplement To Special Instruction, Form SEHS6895, "Bench Testing Hydraulic Components" Now Available On Microfiche{0650}

1979/10/15 Engine Oil Viscosity Changed To SAE 10W/30 For Shipment From All U.S. Factories{1318}

1979/10/15 New Camshaft Housing Gasket Has Increased Resistance To High Temperature{1113}

1979/10/22 Use The FT1482 Stop Collar Assembly With The 1P4000 Line Boring Tool Group{0663}

1979/10/22 New Coolant Temperature Regulator Housing And Vent Line Valve Give Better Control Of Engine Cooling; Conversion Kits Available{1380,1355}

1979/10/22 Cold Temperature Starting Procedures For Air Compressor And Drill Engines{0374,1000,1450}