Installation of Conventional Duo-Cone Seals{7561} Caterpillar

Installation of Conventional Duo-Cone Seals{7561}


769C 01X

Information for equipment:


Installation of Conventional Duo-Cone Seals{7561} Installation of Conventional Duo-Cone Seals{7561}
Installation of Inverted Duo-Cone Seals{7561} Installation of Inverted Duo-Cone Seals{7561}

Instructions for Filling the Oil of Nexus and Classic Carrier Roller and Idler {4154, 4159} 2004/08/16

Caterpillar Products: All

When you install Duo-Cone Seals, make sure that the following conditions exist:

  • All parts of the seal are clean and make sure that there is no dust, lint, or grease on the seal.

  • No oil is on the rubber toric, the seal ring ramps, or the housing ramps.

  • The correct installation tool is used.

  • The seal is correctly seated. The seal must have the same projection 360° around within 1 mm (0.04 inch). Refer to the illustration. The height gage is included.

  • If small adjustments are necessary, do not push directly on seal ring (1). Use installation tool (2) to push downward or use adjustment tool (3) to pull upward. Refer to the illustration. The adjustment tools are included.

  • Both seal faces are cleaned and oiled before assembly.

  • The rubber toric is wetted with isopropyl alcohol. The isopropyl alcohol must contain at least 99% isopropyl alcohol.

Note: Isopropyl alcohol requires a minimum of ten minutes drying time prior to assembly. Drying time can be reduced by using filtered compressed air with less than 70 kPa (10 psi) to force dry the seal area.

Note: All safety and disposal guidelines must be followed for flammable liquids.

For further information, refer to the following documents: Special Instructions, SEHS8364, "Assembly and Installation of Conventional Duo-Cone Seals", Special Instructions, SEHS8484, "Tool and Specifications" and Special Instructions, SEHS8758, "Assembly and Installation of Duo-Cone Track Idler Seals with 'L' Shaped Sealing Ring Cross-Section".

The life of the seal depends on the correct installation.

Illustration 1g01100108

Caterpillar Information System:

2004/07/26 Special Instructions Are No Longer Announced In the Service Magazine {1000, 7000}
3406E and C15 Marine Engines Electronic Control System Components
C27 and C32 Engines Cylinder Liner Projection - Inspect
2004/09/01 An Improved Rocker Arm Base and an Improved Seal for the Rocker Arm Base are Now Used {1123, 1123}
C27 and C32 Engines Engine Valve Lash - Inspect/Adjust
G3500B Engines Overhaul (In-Frame)
2004/09/01 A New Aftercooler Core is Used {1063, 1064}
2004/10/01 A New Fuel Injector Reduces the Amount of Soot in the Engine Oil {1251, 1254, 1290, 1713}
3408B and 3408C Industrial and Marine Engines Vibration Damper and Pulley
C32 Marine Engine Model View Illustrations
C27 and C32 Engines Basic Engine
2004/06/28 Information Release Memo, PELJ0340 , "Reusable Couplings for Caterpillar -12 and -16 XT-6 ES Hose" {5057}
C27 and C32 Engines Lubrication System
3500B Engines and 776D, 777D, 784C, 785C, 789C, 793C and 793D Off-Highway Truck/Tractors Valve Mechanism
2004/11/29 Single Purpose Fluid Sampling Valves and Dual Purpose Fluid Sampling Valves Require Different Quick Connect Couplers {0645, 7542}
2004/12/27 Portable Contamination Monitor Group Provides a Lower Cost Alternative to Particle Counting {0781, 0784, 0786, 1300, 5050}
2005/01/31 Tools Are Available for the Installation of Crankshaft Seals and Wear Sleeves {0700}
3408E and 3412E Engines for Caterpillar Built Machines Engine Oil Pan
C27 and C32 Engines Piston Ring Groove - Inspect
C6.6 Marine Generator Set Generator Installation
3512, 3508 and 3516 Generator Sets Product Storage
2008/10/06 New Tubes for Plate Type Heat Exchangers that Are Designed To Order (DTO) {1379}
G3300 Engines After Stopping Engine
3412E, C30 and C32 Marine Engines Water Pump - Remove
Back to top
The names Caterpillar, John Deere, JD, JCB, Hyundai or any other original equipment manufacturers are registered trademarks of the respective original equipment manufacturers. All names, descriptions, numbers and symbols are used for reference purposes only. is in no way associated with any of the manufacturers we have listed. All manufacturer's names and descriptions are for reference only.