CAP/PLUG-TAPERED 9U7074 - Caterpillar

Information on installation and machine work for the bushing in the drive end housing.
Information on installation and machine work for the bushing in one type of commutator end frame.
Information on installation and machine work for the bushing in a second type of commutator end frame.
Information on installation and machine work for the bushing used in one type of a center housing.
Information on installation and machine work for the bushing used in a third type of center housing.The housing or frame in which each bushing is installed, must be in correct alignment with the bore machine. The frame or housing must be in full contact with the alignment surface, and the bushing must be on the same center line as the bore machine shaft.
Where a tangent wick is used, the new bushings must be drilled. The hole must be the same diameter as the wick hole. Put SAE 20 oil on the wick before assembly of the starting motor. If no tangent wick is used, put the bushing in SAE 20 oil before assembly of the starting motor.
The chart which follows has the bushings, their lengths, and their outside and inside diameters.
The information in this article is only for the specific bearings shown in the chart. New bearings of a different design will be available in the future. The new bearings will be made to a finished size at the factory, and they must not be reamed.