1986/11/24 Caterpillar

Updates To The Parts Book Microfiche{0374}

Usage:

Starting in November of 1986, the updates to the Parts Book Microfiche will provide only those fiche that are either new or revised. Do not destroy any of the existing microfiche in your library unless there is a replacement for it in the update package.

For example, on Parts Book HEFP1231 for the 235 Excavator you will do the following:

... Fiche 1 of 5 dated 5-86 has not changed. You will keep the existing fiche.

... Fiche 2 of 5 dated 5-86 has changed. You will replace the existing fiche with a new one dated 11-86.

... Fiche 3 of 5 dated 5-86 has not changed. You will keep the existing fiche.

... Fiche 4 of 5 dated 5-86 has changed. You will replace the existing fiche with a new one dated 11-86.

... Fiche 5 of 5 dated 5-86 has not changed. You will keep the existing fiche.

Caterpillar Information System:

1986/11/24 Smaller Diameter Fuel Supply Line May Cause Power Loss{1274,1250}

1986/11/10 Use Gas Detector Tubes That Have Expired Dates To "Break In" The Combustion Chambers For The Fuel Sulphur Analyzer Group{0651}

1986/11/10 Adjust Bosch Solenoid If Replaced Or Reinstalled{1407,1453}

1986/11/10 New Fuel Ratio Control Used{1278}

1986/11/10 Caterpillar Antifreeze Now Used And Available From Parts Departments{1350,1395}

1986/11/03 Nylon Seals Used On Lockwire To Seal Critical Areas; All Subsidiary Dealers Can Now Order Parts Service Seals {1257,1264}

1986/11/03 Two New Cold Weather Fuel Heaters Available {1296}

1986/11/03 High Loads Require Additional Oil Capacity {1318,1214,1215}

1986/11/03 New Jacket Water Heaters Have Longer Thermostat Life {1383,1450}

1986/11/03 Custom Product Microfiche Library Is Now Part Of U.S. Product Parts Book Library {0374}

1986/10/27 New Indicator Instrument Group Available To Measure Crankcase Blowby And Radiator Air Velocity{0781,1200,1350}

1986/10/27 Stronger Oil Level Guide Used{1326,1300}

1986/11/24 Engine Mounts Available To Provide Clearance For Deep Oil Pans{1152,1302}

1986/12/01 Product Support Literature For Military Machines {7567}

1986/12/01 Hour Meters - Mechanical Versus Electronic {7480,7478}

1986/12/01 Use Correct Pistons And Rings For 3406B Truck Engines {1214,1215}

1986/12/01 Improved Retaining Bushing In Fuel Injection Pump {1251,1250}

1986/12/15 How To Use Literature References In Column Three of the NPR (Numerical Parts Record){0374}

1986/12/15 New Track Press Assembly Specifications Decals Available{4150}

1986/12/15 Check For Dirt Before Replacing Pyrometer Switch{1050,7466}

1986/12/15 Avoid Oil Contact With New Water Passage Seals Used In Cylinder Head Groups{1100}

1986/12/15 Silicone Water Seal Available{1101}

1986/12/15 New Cover Used On BrakeSaver Control Valve{1159}

1986/12/22 Two New Shop Towels And Towel Bracket Available In North America{0600}