SEAL-O-RING 3170808 - Caterpillar

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.
Type 1 Fuel Filter
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 suitable tool 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.
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". Type 2 Fuel Filter
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. Note: If the fuel filter does not have a drain device installed, release the cap (1) on top of the fuel filter base. Remove the nylon insert to lower the level of the fuel in the filter canister. This will prevent fuel spill when the clamp ring (2) is released.
Illustration 2 g03651641
Typical example
Support filter canister (3). Rotate the clamp ring (2) to the left. Remove the clamp ring (2).
Remove the canister (3) from the fuel filter base by a direct pull downwards. Discard canister (3) in a safe place.
If a sediment bowl (4) is installed, remove the bowl. Remove O-rings. Discard O-rings.
Clean bowl (4).
Install new O-rings to the bowl (4).
Install bowl (4) to new canister (3). Tighten bowl by hand pressure only
Ensure that the fuel filter base is clean. Install the new canister (3) to the fuel filter base.
Support the canister (3), install the clamp ring (2). Rotate the clamp ring (2) to the right to fasten the canister to the fuel filter base.
If the nylon insert was removed to lower the fuel level in the fuel filter, ensure that it is installed