SEAL-O-RING 1229250 - Caterpillar

D330C, D333C, 1673C, 3304, 3306 and 3208 Industrial, Marine, Truck and Electric Set EnginesThe 9N6519 or 1W1166 Water Separator Group can be installed on the above engines; see the specific Parts Book for the correct part number. This instruction gives the procedure needed to install the water separator, but does not give a specific location for the installation, because of the many different types of installation for these engines. Install the water separator in a location that has good access for visual inspection, and also has enough space for performance of the regularly needed maintenance. See pages 4 and 5. Install the water separator in the fuel supply line that comes from the fuel tank, and between the fuel tank and fuel filter.
Do not put base (1) in a vise during installation of the fittings in the steps that follow.
1 Either hole (A) or hole (B) in 8N9801 Base (1) can be used for connection of the inlet fuel line from the fuel tank. Hole (C) is for the connection of the fuel line that goes to the fuel filter. Install suitable 1/2"-20 thread fittings in holes (A) or (B) and (C). In the procedure that follows, 6V2611 Shut-off valves and 3K8460 Plugs will be installed in specific ports of base (1). Always install a 1J9671 O-ring Seal on these parts before they are installed in the port.2 For those engine applications that have the water separator installed in a location that is higher than (above) the fuel tank, install a 6V2611 Shut-off Valve [for use as an air outlet (vent)] in either hole (A) or hole (B), that is opposite the fuel inlet fitting. If the water separator is installed in a location that is lower than (below) the fuel tank, install a 3K8460 Plug in either hole (A) or (B), that is opposite the fuel inlet fitting.3 Install a 6V2611 Shut-off Valve (for use as a water drain) in either of the holes (D) or (E). Install a 3K8460 Plug in the hole (D) or (E) that is opposite the 6V2611 Shut-off Valve.
Do not install the water separator in a highly heated area, such as near the exhaust manifold.
4 Use a minimum of two bolts in any two of the bolt holes in the bracket on the back of base (1), and install the base as follows: Install the base so the word TOP is up and in a location that has good access for visual inspection, with enough space for performance of the necessary maintenance procedures. The location for installation of the base must have a minimum flat area of 1.250" × 3.00" (31.8 × 76.2) for good support when the base is fastened in position. 5 Use a clean cloth and carefully clean the three sealing surfaces (F). Put element (2) on base (1) so pin (3) is in alignment with the hole in the bottom of element (2). Put lock tab (G) in the slot (groove) in the bottom of base (1). Push