- Turn the ball valve that is located on the fuel tank to the OFF position.
- Lift the hoods. Fasten the hoods in position with the hood locks. Loosen two socket head bolts (2).
- Disconnect two wire harnesses (1). Position wire harness (1) away from the engine electronic control.
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Illustration 2 g00479526 Show/hide table
The fuel in the electronic control module and in the hose assemblies connected to the module may be under high pressure. When the hose assemblies connected to the module are disconnected, the pressure will be released.
Fuel under high pressure can penetrate the body causing personal injury.
To release the pressure, slowly loosen the hose assembly.
- Disconnect two fuel hose assemblies (3). Install caps and plugs to all connections in order to avoid system contamination.
- Remove four bolts (5), the washers, the mounts, the ground strap and the four spacers.
- Remove engine electronic control (4) from the engine.
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Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids. Refer to Special Publication, PERJ1017, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat® products. Dispose of all fluids according to local regulations and mandates. |
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Fuel leaked or spilled onto hot surfaces or electrical components can cause a fire. To help prevent possible injury, turn the start switch off when changing fuel filters or water separator elements. Clean up fuel spills immediately. |
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| Illustration 1 | g00479525 |
- Check all of the O-ring seals and the components for wear or damage. Replace the components, if necessary.
- Lubricate all of the O-ring seals lightly with the lubricant that is being sealed.
Note: If it is necessary to install a different electronic control module, refer to Troubleshooting 3408E and 3412E Engines , "Replacing the ECM".
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Illustration 3 g00479526 - Place engine electronic control (4) in position on the engine.
- Install four bolts (5), the washers, the mounts, the ground strap and the spacers.
- Connect two fuel hose assemblies (3).
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Illustration 4 g00479525 - Put two wire harnesses (1) in position on the engine electronic control.
- Tighten two socket head bolts (2).
- Turn the ball valve that is located on the fuel tank to the ON position.
- Prime the fuel system. Refer to Operation and Maintenance Manual, "Fuel System - Prime".
- Close the hoods.