Personal injury or death can result from a fire. Fuel leaked or spilled onto hot surfaces or electrical components can cause a fire. Clean up all leaked or spilled fuel. Do not smoke while working on the fuel system. Turn the disconnect switch OFF or disconnect the battery when changing fuel filters. |
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Do not pre-fill the fuel filter with fuel before you install the fuel filter. Contaminated fuel WILL DAMAGE the fuel system components. |
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Caterpillar STRONGLY recommends the use of ultra-high efficiency secondary fuel filters for this machine model. Ultra-high efficiency fuel filters are designed in order to better protect diesel engines that have higher injection pressures and closer tolerances. Use of secondary fuel filters that are NOT ultra-high efficiency fuel filters will result in shortened fuel system component life. Caterpillar ultra-high efficiency fuel filters are the preferred secondary filters for this machine model. |
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Severe working conditions can shorten the life of the fuel system. Severe conditions refer to a dusty environment and/or dirty fuel. Under severe conditions, reduce the maintenance interval to 250 service hours. |
In order to keep the engine in optimum condition, it is important to keep the fuel free from contamination. As fuel system contamination usually occurs during refueling, the following points should be observed:
- Only use clean fuel of the correct grade from a reliable source.
- Do not refuel from contaminated containers or containers that are not suitable for fuel storage.
- Do not use contaminated equipment.
- Regularly clean the outside of the fuel filler cap and the area around the fuel filler cap.
- Only use Caterpillar approved fuel filters. The use of Caterpillar filters is essential in order to protect the fuel system.
- Do not service the fuel filters prior to the suggested maintenance interval. This may increase the risk of contamination in the fuel system.
Note: In order to reduce the risk of contamination in the system, do not remove the primary fuel filter and the secondary fuel filter simultaneously. Perform these operations separately.
Note: After the engine has stopped, you must wait for 60 seconds in order to allow the fuel pressure to be purged from the high-pressure fuel lines before any service or repair is performed on the engine fuel lines.
- Open the engine compartment. The secondary fuel filter (1) is located on the right side of the machine toward the rear of the engine compartment.
- Ensure that the fuel supply valve (if equipped) is in the OFF position. Place a suitable container under the fuel filter in order to catch any fuel that might spill. Clean up any spilled fuel.
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Illustration 1 g01681695 - Clean the outside of the fuel filter. Use a Caterpillar strap wrench in order to remove the filter from the engine and dispose of the filter in a safe place.
- Install a new filter.
- Install a new filter hand tight until the seal of the filter contacts the base. Note the position of the index marks on the filter in relation to a fixed point on the filter base.
Note: There are rotation index marks on the filter that are 90 degrees or 1/4 of a turn away from each other. When you tighten the filter, use the rotation index marks as a guide.
- Tighten the filter according to the instructions that are printed on the filter. Use the index marks as a guide.
Note: Do not fill the new filter before you install the new filter.
- Install a new filter hand tight until the seal of the filter contacts the base. Note the position of the index marks on the filter in relation to a fixed point on the filter base.
- Before you start the engine, make sure that the drain valves are closed.
- With the ignition key in the OFF position, hold switch (2) in the ON position for 45 seconds.
- Check for leaks.
- Start the engine. If the engine does not start, repeat step 6.
- Check for leaks.
- Close the engine compartment.