1984/04/02 Caterpillar

Assembly And Installation Of Duo-Cone Seals {7555}

Usage:

It is most important that correct assembly and installation procedures are followed when Duo-Cone seals are used. Many of the Duo-Cone Seal failures are the direct result of one or more mistakes made during assembly or installation of the seal components.

When the Duo-Cone Seals are assembled, all the parts must be clean (no dust, lint or grease). Oil or grease on the toric ring can result in oil leakage between the metal seals when installed on the machine. This can result in a shorter service life of the Duo-Cone Seal. Components of the Duo-Cone Seals can be cleaned with tri-chloroethane. Tri-chloroethane is a solution that dries rapidly and will not leave an oil film on the surface. Do not use any liquid that will leave an oil film, or does not evaporate quickly.

When Duo-Cone Seals are installed, make sure the correct tool is used. A seal that is not installed correctly can also result in oil leakage. See the Tool Guide for the correct tool that must be used with each Duo-Cone Seal. Tri-chloroethane can be used on the toric ring as a lubricant to help make sure the Duo-Cone Seals are installed correctly.

After the seal is installed, check the height (projection) at four places, 90° apart. There must not be more than 1 mm (.04") difference between the measurements.

For more complete information about the assembly and installation of Duo-Cone Seals, see Special Instruction, Form SEHS8364.

Caterpillar Information System:

1984/03/26 New Ahead Clutch Pilot Bearing Assembly Used On Main Shaft{3302}

1984/03/26 New Pressure/Torque Conversion Decal Available For 6V200 Hydraulic Wrench{0614,0611}

1984/03/26 Fuel Setting And Air Fuel Ratio Control Adjustment Tools For 3406B Engines{0650,1264,1257,1278}

1984/03/26 New Connecting Rod And Main Bearings Used{1230,1219,1203}

1984/03/26 Service And Troubleshooting Information For Electrical Systems{1400,1450,5700,7300,7400,7450}

1984/03/12 Use Of Impact Wrench To Tighten Counterweight, Main Bearing Cap And Connecting Rod Bolts{1202,1203,1218,1219,1230}

1984/03/12 Check Cylinder Heads For Water Passage Plugs{1100,0374}

1984/03/12 Remove Shackle Assembly When The Generator Is Put Into Operation{7002,4450}

1984/03/12 Some 3512 Engines Used In Generator Set Applications No Longer Use Flywheel Balance Weights{1156}

1984/03/12 New Suction Tube And Strainer Housing Give Better Access To O-Ring Seal{3310,3311}

1984/03/12 New Gasket Used In Front Housing Group{1151}

1984/03/05 Make Sure There Is Clearance Between Cylinder Head And Fuel Injection Pump Housing When A New Cylinder Head Is Installed{1100,1101}

1984/04/02 Bolt Used Instead Of Stud In Governor Fastener Group To Prevent Damage To Governor Housing {1264,1287}

1984/04/02 Service Tools With Dual Scale (U.S. Standard And Metric) Will Again Be Available {0623,0653}

1984/04/02 6V3176 Relief Valve Available For Center Hole Double Acting Hydraulic Cylinders {0623}

1984/04/09 Bypass Valve Can Be Installed To Keep Prelubrication Oil At The Correct Level{1319}

1984/04/09 Overvoltage Protection For Woodward 2301 Governor{1289}

1984/04/09 New Adapter Assemblies And Clamps Hold Fuel Nozzles In Position{1106,1252}

1984/04/16 How To Recognize And Reduce The Effect Of Moisture On SR4 Generator Windings{4450,4453,4454}

1984/04/16 New Oil Filter Base Assembly Used In Filter Base Group{1306}

1984/04/16 Piston For Rectangular Rings Available Again{1214,1215}

1984/04/23 3406 Remanufactured Truck Engines Available{1000}

1984/04/23 Repair Of Drain Plug Threads In Oil Pan{1302}

1984/04/23 Dimensions For Reconditioning Cylinder Blocks, Cylinder Heads{1201,1101,1103,1105}