31305 Mercury "O" RING

Table 1
Required Tools
Tool Part Number Part Description Qty
A 2P-8250 Strap Wrench 1
B 1P-1855 Retaining Ring Pliers 1
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Refer to Special Publication, PERJ1017, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat® products.Dispose of all fluids according to local regulations and mandates.
Note: Install caps and plugs on all openings in order to prevent dirt or debris from entering the system. Cleanliness is an important factor. Before the removal procedure, the exterior of the component should be thoroughly cleaned. This will help to prevent dirt from entering the internal mechanism.
Illustration 1 g00568274
Turn ball valve (1) to the CLOSED position before primary fuel filter base (6) is removed.
Position a suitable container under primary fuel filter base (6) in order to contain the fuel for storage or disposal. Disconnect two hose assemblies (2) and (3) from the primary fuel filter base (6).
Use Tool (A) in order to remove primary fuel filter case (5) and gasket (9) from primary fuel filter base (6).
Remove two bolts (4), the washers, and primary fuel filter base (6) from the fuel tank.
Illustration 2 g00595130
Personal injury can result from being struck by parts propelled by a released spring force.Make sure to wear all necessary protective equipment.Follow the recommended procedure and use all recommended tooling to release the spring force.
Use Tool (B) (not shown) in order to remove retaining ring (10) from nut (7).
Remove nut (7) and O-ring seal (8) from primary fuel filter base (6).
Remove primary fuel filter element (11) from primary fuel filter case (5).
Push down on element retainer (12) while Tool (B) (not shown) is used to remove retaining ring (13).
Remove element retainer (12) and spring (14) from primary fuel filter case (5). Installation Procedure
Table 2
Required Tools
Tool Part Number Part Description Qty
A 2P-8250 Strap Wrench 1
B 1P-1855 Retaining Ring Pliers 1 Note: Check all the components of the primary fuel filter for wear or for damage. Replace the components, if necessary.Note: Verify that the primary fuel filter is clean and free of foreign material prior to installation.
Illustration 3 g00595130
Personal injury can result from being struck by parts propelled by a released spring force.Make sure to wear all necessary protective equipment.Follow the recommended procedure and use all recommended tooling to release the spring force.
Install Spring (14) and element retainer (12) into primary fuel filter case (5). Push down on element retainer (12) while Tool (B) (not shown) is used to install retaining ring (13).
Install fuel filter element (11) into primary fuel filter case (5).
Position O-ring seal (8) on nut (7). Install nut (7) and O-ring seal 8 into primary fuel filter base (6). Tighten nut (7) to a torque of 25 5 N m (18.4 3.7 lb ft).
Use Tool (B) (not shown) to install retaining ring (10) to nut (7).
Illustration 4 g00568274
Position primary fuel filter base (6) to the fuel tank, as shown. Install two bolts (4) and the washers.
Position primary fuel filter case (5) and gasket (9) onto primary fuel filter base (6). Use Tool (A) to rotate primary fuel filter case (5) for an additional 3/4 of a turn.
Connect two hose assemblies (2) and (3) to primary fuel filter base (6).
Turn ball valve (1) to the OPEN.
Prime the fuel system before starting the engine. Refer to Operation and Maintenance Manual, SEBU7173, "Fuel System - Prime" for the correct procedure.