HANDLE 3835606 - Caterpillar

Single Fuel Filter
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.
Note: Refer to Testing and Adjusting Manual , "Cleanliness of Fuel System Components" for detailed information on the standards of cleanliness that must be observed during ALL work on the fuel system.
Ensure that the engine is stopped before any servicing or repair is performed.
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. If necessary, perform minor adjustments. Repair any leaks from the low pressure fuel system and from the cooling, lubrication or air systems. Replace any high pressure fuel line that has leaked. Refer to Disassembly and assembly Manual, "Fuel Injection Lines - Install".Ensure that all adjustments, maintenance and repairs are performed by authorized personnel that have the correct training.
Illustration 1 g01636754
Typical example
The engine can have the ability to auto start. Ensure that the power supply is isolated before any service or repair is performed.
Turn the fuel supply valve to the OFF position before performing this maintenance.
Place a suitable container under the water separator in order to catch any fuel that might spill. Clean up any spilled fuel. Clean the outside of the water separator.
Disconnect the wiring harness (5) from the sensor on the bottom of the bowl (4).
Place a soft cloth over the vent screw on the filter. Open the vent screw in order to relieve the pressure that may be within the fuel system.
Open the drain valve. Allow the fluid to drain into the container. Tighten the drain valve by hand pressure only. Then, tighten the vent screw securely.
Rotate the bowl counterclockwise in order to remove the bowl. Remove O ring seal (3). Clean the bowl.
Use 1U-8760 Chain Wrench in order to remove old canister (2).
Lubricate O ring seal (1) with clean engine oil on the new canister. Install a new canister.
Spin on the canister until the O ring seal contacts the sealing surface. Then rotate the canister ¾ of a full turn. Do not use a tool in order to install the canister.
Install a new O ring seal into the bowl. Lubricate O ring seal (3) with clean engine oil. Install the bowl onto the new canister. Tighten the bowl securely. Install the wiring harness to the sensor.
Open the fuel supply valve. Remove the container and dispose of the fluid in a safe place.
The secondary filter must be replaced at the same time as the primary filter. Refer to the Operation and Maintenance Manual , "Fuel System Secondary Filter - Replace". Duplex Fuel Filters
Some engines are installed with duplex fuel filters. Filter Change with the Engine in Operation
Illustration 2 g01627770
(A)