1984/07/16 Caterpillar

A New Baffle Plate And Oil Pump Drive Sleeve Are Used In Marine Transmissions{3310}

Usage:

7231 And 7241 Marine Transmissions

Description of Change: A baffle has been added to the pilot bore of the manifold for the oil pump drive sleeve. The baffle allows the manifold to fill with oil. The oil pump drive sleeve now operates in oil. This helps decrease wear of the sleeve.

A new oil pump drive sleeve is also in use. The new sleeve is easier to install. The new sleeve does not need to be drilled and reamed at installation. Use a new dowel if a new sleeve is installed.

Adaptable As: The new parts when used together are direct replacements for the former parts as shown in the chart. These changes are in effect on 7231 Marine Transmissions (39E547) and 7241 Marine Transmissions (17W795). The changes are adaptable to all earlier 7231 and 7241 Marine Transmissions.

Location of baffle.

Caterpillar Information System:

1984/07/16 Make Sure Crankshaft Is Installed Correctly{1202}

1984/07/09 New Disassembly And Assembly Tools Available For Fuel Ratio Controls{0600,1278}

1984/07/02 Surface Grinding Of Compacted Graphite Iron Cylinder Heads{1101}

1984/07/02 New Crankshaft, Cylinder Block And Camshaft Used{1202,1201,1210}

1984/07/02 Modification To FT1488 Exciter Tester Group Allows Testing Of All Small Frame SR4 Generators{0785,4450,4467}

1984/07/02 Procedure To Clean Oil Passages In Crankshafts And Cylinder Blocks{0622,0675,1201,1202}

1984/06/25 New Rear Crankshaft Seal Group Used {1161}

1984/06/25 New Cylinder Head Has Larger Mounting Holes For The Lifting Brackets {1100,1101}

1984/06/25 Oil Recommendations For Power Shift Transmissions {3179}

1984/06/25 MG507 Marine Transmission Uses Metric Fasteners {3354}

1984/06/25 New Ammeter And Ammeter Calibrator Group Available {0651}

1984/06/25 Copper Seals Available For JIC (Joint Industry Conference) Fittings {0600,0683,0684}

1984/07/16 New Relief Valve Guide Used In Oil Pump{1315}

1984/07/16 Alternator Available For General Use{1405}

1984/07/16 Use Caution When Handling Components That Contain Asbestos{0353}

1984/07/16 New Mechanical Service Meter Used{7478}

1984/07/16 FT1886 Valve Spring Compressor Group Available{0600,1108}

1984/07/16 Use Vacuum Tester For Quality Control Check Of Water Pump Seal{0768,1361}

1984/07/16 Installation Instructions For Turbocharger Bearing Kit{1052,1053}

1984/08/13 Higher Compression Pistons Can Help Reduce White Exhaust Smoke During Cold Weather Starts{1250}

1984/08/13 New Service Tools Available{0600}

1984/08/13 New Films (Decals) Available For Service Meter Face{7478,7480}

1984/08/13 New Fuel Injection Pumps, Fuel Injection Lines, Fuel Injection Nozzles, and Piston And Rod Groups Used On Some Engines{1000,1225,1251,1252,1254}

1984/08/20 Instrument Panels Improved{7450}