1980/02/11 Caterpillar


Use The Correct Water Temperature Contactor{1350,1100}

Usage:


3406, 3408 And 3412 Industrial And Marine Engines

Description of Change: A different water temperature contactor is now used on 3406, 3408 and 3412 Industrial and Marine Engines. The part of the new water temperature contactor which fits into the cylinder head is approximately 45 mm (1.8") long. The part of the former water temperature contactor which fits into the cylinder head is approximately 72 mm (2.8") long.

It is some times possible for the former water temperature contactor to make contact with the inside of the cylinder head. This contact can cause the former contactor to give an indication of a hot engine which will cause the engine to shut down.

When a new water temperature contactor is necessary, be sure to install the new, shorter water temperature contactor.

Adaptable As: The new 5N5723 Water Temperature Contactor is a direct replacement for the former 5L6435 Water Temperature Contactor and can be used on all 3406, 3408 and 3412 Industrial and Marine Engines. The former 5L6435 Water Temperature Contactor is still available for use in other applications.


Part of 5N5723 Water Temperature Contactor which goes inside cylinder head.

Caterpillar Information System:

1980/02/11 Warning: Avoid Use Of Fuel Mixtures Of High Volatility. If You Are Exposed To Such Mixtures, Be Aware Of The Hazards Involved And Take Proper Precautions{1280}
1980/02/04 Real Value Available Through Caterpillar Remanufacturing Programs{0374}
1980/02/04 Change To Gear On Accessory Drive Shaft Assembly Gives Longer Service Life{1207,1206}
1980/02/04 New Cylinder Liner Has Improved Design To Keep Liner Temperatures Lower{1216}
1980/01/28 Oil Drain Hole Added To Spacer Plate Cylinder Block To Permit Use Of Scroll Fuel System{1201,1221}
1980/01/28 New Attachment Air Compressor Group and Lines Groups Have Improved Design{1065}
1980/01/28 Installation Procedures For 5N5880 Remote Shut-Off Group And 5N6336 Oil Pressure Indicator Gauge Group{7418,7403,7455}
1980/01/28 New 6V199 Socket For Use On Fasteners In Areas With Limited Clearance{0612}
1980/01/21 New Fuel Injection Nozzle Assembly Used{1254}
1980/01/21 Extended Shafts Now Available For Front Power Takeoff Units{3055}
1980/01/21 Cooling System Improvements Prevent Expansion Tank Leakage{1354,1380,1153}
1980/01/21 New Piston Groups Have The Piston Pin Bore Off-Center, Away From The Thrust Side Of The Piston{1214}
1980/02/25 How To Check Operation Of Hydramechanical Shutoffs On D379B, D398B, D399 Engines{7418}
1980/02/25 Revision Of Special Instruction Form No. SMHS7267, "Use Of 5P8709 Tool Group For Alignment Of Piston Cooling Jets" Has Important Changes{1307}
1980/02/25 Stronger Braces Used Between Air Cleaner And Engine{1051}
1980/02/25 Plunger Movement Must Be Adjusted When New Rack Shut-Off Solenoid Is Installed{1259}
1980/02/25 Drawings Available For Six Tools Used During Repairs Of Damaged Pin Bores In Two-Piece Booms{6501,0665}
1980/02/25 Identification Of Fuel Injection Lines And Nozzle Bodies For Different Combustion Systems{1252,1254}
1980/03/03 Spacer Plate Block Group Used For Parts Service Of Block Group With Counterbore Design{1101,1201}
1980/03/03 Connecting Rod Changes And Replacement Information{1218}
1980/03/03 Fuel Heaters Are Now Available For Field Installation{1296}
1980/03/24 Inspect Regulator Cover Assembly When Overcooling Is A Problem{1350,1380}
1980/03/24 Crankshaft Rear Seal And Wear Sleeve Are Now Serviced As A Group Instead Of Separate Parts{1161}
1980/03/24 New Top Piston Ring Has Plasma-Coated Face{1215}
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