BEARING 1987043 - Caterpillar

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Remove both of the locator blocks from the inside of the fuel sump.
Protect the bottom of the tube assembly from arcing. Place a piece of hydraulic hose between the tube assembly and the bottom of the fuel sump.
Use a fume exhauster in order to protect the welder from the welding fumes.
Prepare the four seams for welding. Refer to ""Prepare the Area for Welding"" for more information.
In order to determine whether the cleaning of the fuel sump has made the fuel sump safe, install Tooling (A). Testing must be completed before any welding is done. Testing must be completed periodically during the welding process.
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(W1) 8.0 mm (0.32 inch) continuous weld (3) plate
Weld the four seams. Refer to ""Weld Specifications"" for the correct welding electrodes and the correct settings. Weld plate (3) with a continuous weld (W1) of 8 mm (0.3 inch). Tie the welds into the existing welds in the four corners.
Remove the slag from the welded areas. Inspect the welds. Refer to ""Weld Inspection"" for the proper inspection procedure. If weld defects are present, reweld the suspected area. Clean up any slag from the inside of the fuel sump. Remove the piece of hydraulic hose from the tube assembly.
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Place 8X-6131 Seal around the cutouts. Repeat this step for the other cutout.
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Place a piece of steel over the sealed cutout. Make sure that the steel is large enough to cover the cutout. Make sure that the piece of steel is flat enough to seal the cutout. It may be necessary to place a wood block over the piece of steel in order to install two C-clamps over the cutout. Repeat this step for the other cutout. Clamp the steel and wood in order to seal the cutout.
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Install both drain plugs for the fuel sump. Install Tooling (B) to the vent line of the fuel sump. Connect shop air to the other side of Tooling (B). Apply 35 kPa (5.0 psi) to the fuel sump. Close the shut off valve. Disconnect the air supply.
A quick check can be performed by using a soapy solution. Spray the solution around the cutouts. Spray the solution around all of the seams of the fuel sump. Spray the solution around the ends of the disconnected fuel lines. Spray the solution around the pressure gauge connection. If any bubbles are present at the ends of the lines, the lines must be cleaned and sealed again. If any bubbles are present on the fuel sump, the welding procedure has a defect. Reweld the area that has the defect. If no bubbles are present, allow the fuel sump to sit under pressure for a period of 8 hours.
There is a leak if the pressure has dropped after 8 hours. Inspect the welded areas for defects. Repair any weld defects. Remove the pressure gauge if the pressure remains at 35 kPa (5.0 psi) after 8 hours. Remove all of the tools that were required to seal the cutouts.
Remove any debris that may