1980/06/04 Caterpillar


Oil Pump Drive Sleeves Now Available Separately For Parts Service

Usage:


3192, 7211, 7221, 7231, 7241, 7251, 7261 Marine Transmissions

Description of Change: Oil pump drive sleeves for the above models are now available separately for parts service. These sleeves are part of the main ahead shaft assembly for 7211 and 7221 Marine Transmissions, or the oil pump drive shaft assembly for the other models. When a drive sleeve becomes worn or damaged, and the remainder of the shaft assembly is still in good condition, a new sleeve can now be installed. Formerly, it was necessary to install a complete new shaft assembly.

Adaptable As: Direct replacement when the necessary parts are used together, as shown in the parts chart. A Special Instruction, Form SMHS7721, is available with complete information for installation of the sleeves. One hole must be drilled and reamed to install the retainer dowel.

Caterpillar Information System:

1980/06/04 New Part Available To Check The 3S1467 Plunger And Barrel Assemblies
1980/06/04 New Cylinder Sleeve Is Available For Repairs Of Worn And/Or Damaged Cylinders
1980/06/04 New Check Valve Used In Fuel Injection Pump Assembly
1980/06/04 Check For Short Circuit In Rotor Field Windings If Low AC (Alternating Current) Voltage Is A Problem
1980/06/04 Reverse Flow Check Assembly Now Used In Fuel Injection Pump Assemblies
1980/06/04 Improved Procedure Can Be Used To Adjust Voltage Gain
1980/06/04 New Plug With Straight-Threads Used In Engine Variable Timing Drive
1980/06/04 Improvements To Engine Oil Lines Group Makes Installation Easier; Prevents Reverse Connections
1980/06/04 Possible Cause Of A Low Idle Misfire And/Or Backfire
1980/05/14 Boss Can Be Removed From Spacer Plate Cylinder Block To Get Clearance For Oil Filler Tube
1980/05/14 List Of Service Publications
1980/05/14 Changes To Oil Level Gauge Group Improve Accuracy Of Oil Level Indications
1980/07/09 6V2050 Tapered Rod Tool Group Available For Removal And Installation Of Bearings
1980/07/09 6V3075 Dial Indicator (Metric) Is Available
1980/07/09 Kysor Air-Operated Shutdown Actuators For 3406, 3408, 1693 Truck Engines
1980/07/09 Follow Correct Procedures For Installation Of Fuel Filters And Priming The Fuel Systems
1980/07/09 New Planetary Group Has Gears Which Operate With Lower Noise Levels
1980/07/09 Visual Checks And Easy Tests Can Be Of Assistance When Troubleshooting Coolant Leakage Into The Lubrication System
1980/07/09 Timing Groups To Be Canceled
1980/07/09 List Of Service Publications
1980/07/09 In The Future, Oversize And Undersize Connecting Rod And Main Bearings Will Have Size Identification Marks In Metric Units
1980/07/09 Check Journal Hardness On Reground Crankshafts
1980/07/09 Check Retainer Screw Depth In Plastic Pads Of 5P8637 Crankshaft Support Groups
1980/08/13 Improved Power Takeoff Service Kits
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