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 Systems Operation, Testing and Adjusting, "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. Turn the fuel supply valve (if equipped) to the OFF position before performing this maintenance. Drain the water separator. Refer to Operation and Maintenance Manual, "Fuel System Primary Filter/Water Separator - Drain" for the correct procedure. Illustration 1 g02351587 Typical example Hold bowl (5) and remove screw (1). Remove bowl (5) from canister. Remove O-ring (4). Discard O-ring (4). Use a 1U-8760 Chain Wrench in order to remove canister (3). Remove O-ring (2). Discard canister (3) in a safe place. Discard O-ring (2). Clean bowl (5). Lubricate the O ring (2) with clean engine oil on the new canister (3). Install the new canister (3). Spin on the canister until the O ring (2) contacts the filter base. The canister will require a ¾ of a full turn or one full turn in order to tighten the canister correctly. Refer to the information on the canister. Install new O ring (4) into the bowl. Align the bowl (5) to the canister (3). Install setscrew (1). Tighten the setscrew to a torque of 5 N m (44 lb in). Remove the container and dispose of the fuel 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".
