PUMP GP-FUEL 4950714 - Caterpillar

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Drive the insert out of the rocker arm. If the insert is going to be reused, do not allow the insert to strike the work surface.
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Place the rocker arm in a press. Use a suitable press tool that is sized correctly to press out the bearing without damaging the bore for the bearing.
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Inspect the bearing bore for damage. The bearing bore should measure 53.233 0.02 mm (2.0958 0.0008 inch).
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Place the rocker arm in a press. Use a suitable press tool that is sized correctly to press in the bearing without damaging the bore for the bearing. Freezing the bearing prior to installation will aid in the installation. The bearing should not protrude past the bearing bore in the rocker arm.
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Once the bearing is installed into the rocker arm be sure that the lubrication ports are aligned.
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A rocker arm being machined.
Machine the rocker arm bearing to 50.086 0.015 mm (1.9719 0.0006 inch). The surface texture must be a maximum of 0.8 µm (32 µinch).
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Rocker arm lubrication ports being flushed.
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Rocker arm lubrication ports being flushed.
After the bearing has been machined, the rocker arm must be thoroughly cleaned. Flush the lubrication ports to ensure that the rocker arm is free of debris.
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Install the insert into the rocker arm. Take caution from damaging the flat on the insert. Use a rubber mallet to drive the insert into the rocker arm. Be sure that the insert sits flush onto the rocker arm.
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Install the button onto the insert. Use a rubber mallet to drive the button onto the insert.
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Install the rocker arm adjusting screw and the jamb nut.
Once the rocker arm is fully assembled, thoroughly clean the rocker arm. The rocker arm is ready now ready to return to service.