1992/05/25 Caterpillar

Hydraulic Cylinder Seal Information Available{0374}

Usage:

Reference: Information Release Memo (IRM), HYD 92-3, Form No. PELM0307, "Hydraulic Cylinder Seals".

Reference: Information Release Memo (IRM), HYD 92-4, Form No. PELM0311, "Hydraulic Cylinder Seals".

The References include Caterpillar's most current and complete listing of hydraulic cylinder seal information. IRM HYD 92-3 is intended for foreign and subsidiary dealer use, and IRM HYD 92-4 is intended for NACD dealers. Both IRMs include:

* A hydraulic cylinder drawing illustrating replacement seal locations.

* A list of Caterpillar's current hydraulic cylinder seals, with a table of contents and application tips.

* A Cylinder Repair Worksheet to aid in record keeping for cylinder repairs.

IRM HYD 92-4 also includes information about how to obtain a seal not included in Caterpillar's current seal coverage.

Caterpillar Information System:

1992/05/25 O-Ring Material, Size, Cross-Reference, And New O-Ring Sizing Cone Information Available{0374}

1992/05/18 New And Remanufactured Fuel Injector Reference{1290}

1992/05/18 New Turbocharger Groups Used{1052}

1992/05/18 New Throttle Actuator In Governor Groups Improves Engine Stability{1289}

1992/05/18 New Turbocharger Groups Help Prevent Surge (Popping){1052}

1992/05/18 Spring Used To Hold Valve In Position In Remanufactured Fuel Transfer Pumps{1256}

1992/05/18 Fuel Injector Group Rack Movement{1290}

1992/05/11 New Components In Aftercooler Water Lines Group Help Reduce Vibration{1380}

1992/05/11 Procedure for Cleaning an Engine Lubrication System when Contaminated with Engine Coolant Containing Antifreeze{1300,1350}

1992/05/11 Troubleshooting 04 Diagnostic Code On Electronic Modular Control Panels (EMCP){4490,4450}

1992/04/20 New Auxiliary Sea Water Pump Group Available{1371}

1992/04/20 Improved Woodward PSG Governor Groups And Improved Carburetor Control Groups Provide Improved Governor To Carburetor Linkage Control{1264,1265}

1992/05/25 New Components Help Prevent Air Leaks In Improved Fuel Ratio Control Groups{1278}

1992/06/15 3F1006 Switch Assembly Now Serviced By Improved 3D9718 Switch Assembly; Procedure To Correctly Install Improved 3D9718 Switch Assembly{1435,1416,7429}

1992/06/15 Battery Shelf Life Guidelines{1401}

1992/06/15 4P6493 Governor Information Plate Available{7557}

1992/06/15 New Diaphragm Used In Fuel Ratio Control Groups{1278}

1992/06/15 New Exhaust Bellows Used In Turbocharger Group{1052}

1992/06/22 New Radial Seal Air Filter Elements And Conversion Kits Available For Parts Service{1054,1051}

1992/06/22 Pin Installation on Side Pinned Tips and Adapters{6800,6805,6806,6808}

1992/06/22 Centrifugal Lube Filter Group Available{1328}

1992/06/22 New Training Material On 3306C And 3406C Truck Engines Available{0374,0375}

1992/06/29 Thinner Spacer Plates Available For Parts Service{1221}

1992/06/29 New Cylinder Heads Have Additional Coolant Passages{1101,1100}