New Bend Specification For Used Or Field Reground Crankshafts{1202}
Usage:
All Caterpillar Engines
A new bend specification of 0.13 mm (.005") maximum T.I.R. (Total Indicator Reading) for main bearing journals is to be used for both used and field reground crankshafts. This new specification is to be used when a crankshaft is measured according to the "Guideline For Reusable Parts--Procedure To Measure Bent Crankshafts," Form No. SEBF8030-01. Make a note of this change in the above publication.
A future revision will have this change.
Caterpillar Information System:
1980/07/14 Some Nuts Used On Main Bearing Caps Are Smaller Than Standard Size Across The Flat Sides{1203}
1980/07/14 Two New Front Power Take-Off Groups Are Available{3055}
1980/07/14 Use The 6V2056 Rod And 6V2057 Point To Find True Top Center{0653}
1980/06/30 New Planetary Group Has Gears Which Operate With Lower Noise Levels{3301,3304}
1980/06/30 Kysor Air-Operated Shutdown Actuators For 3406, 3408, 1693 Truck Engines{7400,1265}
1980/06/23 Follow Correct Procedures For Installation Of Fuel Filters And Priming The Fuel Systems{1261,1258}
1980/06/23 Check Journal Hardness On Reground Crankshafts{1202,1203,1219,1230}
1980/06/23 Do Not Add Caterpillar Cooling System Conditioner (Corrosion Inhibitor) To New Machines Before Delivery; Cooling System Conditioner Service Interval Changed{1350}
1980/06/23 In The Future, Oversize And Undersize Connecting Rod And Main Bearings Will Have Size Identification Marks In Metric Units{1230,1203,1219}
1980/06/23 Check Retainer Screw Depth In Plastic Pads Of 5P8637 Crankshaft Support Groups{0665}
1980/06/23 Improved 2P2342 Hose Group Is Available For Beadless Tires{0611,4211}
1980/06/23 Visual Checks And Easy Tests Can Be Of Assistance When Troubleshooting Coolant Leakage Into The Lubrication System{1305,1318}
1980/08/04 The Service Publications Information Feedback System{0374}
1980/08/04 Pistons Which Use Keystone-Type Rings Can Be Installed In Place Of Pistons Which Use Rectangular-Type Rings{1215,1214,1213}
1980/08/11 6V3030 Digital Multimeter, 6V3031 Case And 6V3032 Test Lead Kit Are Now Available For Troubleshooting Electrical Circuits And Components{0651}
1980/08/11 6V2196 Microscope Available For Inspection Purposes{0653}
1980/08/11 New Oil Filter Base Has Larger Oil Passages; Some Bases Need Modification{1306}
1980/08/11 Improved Piston Ring Used At Turbine End Of Turbocharger{1052,1053,1077}
1980/08/11 New Single Key Lock System Uses The Same Standard Key For All Locks{7300,7550}
1980/08/11 Improved Power Takeoff Service Kits{3055}
1980/08/11 Carbon Cutting On Thrust Side Of Piston Top Land Is Normal Condition For Pistons With Offset (Not In Center) Pin Bores{1213,1214}
1980/08/11 Higher Capacity Auxiliary Pump Group Is Now Available{1371}
1980/08/18 Alcohol Fuels Are Not Recommended For Use In Caterpillar Diesel Engines At The Present Time{1280,0374}
1980/08/18 Some Valve Lifter Assemblies Have A Black Color On The Finished Surface{1209}