1981/05/18 Caterpillar


Change Made To Power Take-Off Adapter Housing{3055}

Usage:


D330C, D333C, 3304, And 3306 Marine Engines

Description of Change: A change has been made to the power take-off adapter housing used on D330C, D333C, 3304 and 3306 Marine Engines. It was possible for the vendor's trademark and the part number on the casting to make contact with the outer edge of the flange on the oil pan before the adapter was completely installed. If the adapter was forced on (put on with force) stress around the areas of the mounting bolts resulted. In time, the adapter cracked in these areas because the material fatigued (became weak because of stress).

The part number and vendor's trademark have been moved to a new location on the adapter. This change will prevent contact between the components during installation.

Adaptable As: Direct replacement. The part number of the 3N1332 Power Take-Off Adapter Housing did not change.

NOTE: The former 3N1332 Power Take-Off Adapter Housing can be used if the casting marks (part number and vendor's trademark) are removed.

Caterpillar Information System:

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1981/05/18 Safety: Battery Vent Caps{1401}
1981/05/11 Installation Of Rear Bearing Oil Seals In 3N6542, 3N8617, And 3N8618 Rear Power Takeoff Clutch Groups{3055}
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1981/05/04 Automatic Shut-Off Systems Not Recommended on Mobile Earthmoving Equipment{7418,7403}
1981/05/04 Larger Valve Springs{1108,1101,1252}
1981/04/27 Special Instruction Available For The Use Of The 6V4040 Nitrogen Tire Inflation Group{4203,0374}
1981/04/27 Fuel Injection Test Bench Specification Sheets Changed{0652}
1981/05/18 Replacement Bushings For Delco-Remy Electric Starting Motors Must Be Machined For Correct Clearances{1453,1454,1465}
1981/05/18 New Mounting Group For Overspeed Switch{7410}
1981/05/25 Instruction Cards For "Go-No Go" Gauges Now Available{0653}
1981/05/25 Use Correct Specifications To Check Piston Ring Gaps{1215}
1981/05/25 Washer Added Between Bolt And Thrust Plate For Oil Pump Idler Gear{1206}
1981/05/25 New Cover Assembly And Gasket Used In Oil Pump Group{7418}
1981/05/25 Air System Leakage Can Cause Problems With Engine Governor Stability At Low Idle RPM{1264,1803}
1981/06/01 Locks No Longer Used On Flywheel Bolts; New Torque Specifications For Flywheel Bolts{1156}
1981/06/01 Correct Use Of Keystone Ring Groove Gauges{1214,1215,1312,0653}
1981/06/01 New Seals And Clutch Discs Used{3300,3302}
1981/06/01 Some Single Part Numbers Have Two Half Bearings{7551}
1981/06/01 New Service Meter Used In Mechanical Shutoff Group{7478}
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