1984/09/03 Caterpillar

Change To Maintenance Interval For Valve Lash Adjustment{1105,1102}

Usage:

3406B Truck Engines

SUPPLEMENT: 02/16/87

SERVICE MAGAZINE, SEPTEMBER 3, 1984, PAGE 11, "Change To Interval For Valve Lash Adjustment". Cross out the article and make reference to the new article with the same title in this issue.

--------------- END SUPPLEMENT ---------------

The recommended maintenance interval for the intake and exhaust valve lash adjustment has been changed. The new recommended maintenance interval is as follows:

Check and adjust the intake and exhaust valve lash at the first oil change or 12,500 miles. After that, check and adjust the valve lash every 100,000 miles or once a year.

The new recommendation will help extend the service life of the valve train. The new recommendation is in effect on all new, rebuilt or exchange 3406B Truck Engines (7FB).

Caterpillar Information System:

1984/09/03 Tune-Up Kit And Remanufactured Nozzles Available{1254,1074,1107}

1984/09/03 Low Maintenance High Output Batteries Are Now Standard Equipment{1401}

1984/09/03 Use Of Teflon Sealant Makes It Easier To Replace Water Heater Elements{1383}

1984/09/03 New Transfer Gears Have Better Contact And Alignment{3301}

1984/09/03 Rubber Bumpers Limit Movement Of Control Panel{7421,7002}

1984/09/03 New Oil Pan And Brace Assemblies, Coarse Thread Bolts Used Instead Of Fine Thread Bolts{1302,0683}

1984/09/03 New Crankshaft Seal Groups Available{1202}

1984/09/03 New Inlet Valve Used{1105}

1984/09/03 Correct Removal And Installation Of Double-Walled Fuel Injection Lines Help Prevent Fuel Leakage{1252}

1984/08/20 Two New High Speed Marine Transmissions Can Be Used With 3500 Series Engines{3302,3306,3351}

1984/08/20 New Thermistor Thermometer Group Can Be Ordered At Less Cost{0651,0653,0650}

1984/08/20 Instrument Panels Improved{7450}

1984/09/10 Differential Oil Pressure In Oil Filter Housing Can Be Checked With A Differential Pressure Gauge{1306,1318}

1984/09/10 Improved Cylinder Heads And Valve Covers Used{1107,1101}

1984/09/17 New Service Tools Available{0600}

1984/09/17 New Gauge In The 1P545 (Tire) Gauge Group Has Dual Scales [kPa (psi)]{0600}

1984/09/17 New Fittings Used In Fuel Filter Lines Group{1274}

1984/09/17 Correct Installation Of Fuel Injection Pumps Can Prevent Fuel Leaks{1251,1253}

1984/10/01 Correct Use Of The 6V4141 Sleeve Metering Calibration Tool Group{0600,0766,0778}

1984/10/01 Tool Drawings Available For Testing Altronic Magnetos On 2P2340 Magneto Test Bench{0709,0712,0767}

1984/10/01 New Main And Connecting Rod Bearings Have Copper Bond Material{1203,1219,1230}

1984/10/01 Pressure - Force Conversion Decals Available{0617}

1984/10/01 New Gaskets Give A Better Seal To Watercooled Exhaust Manifolds{1059}

1984/10/01 New Cylinder Block Groups Used{1201}