FILTER AS-AIR 3048631 - Caterpillar

Removal Procedure
Start By:
Remove the high-pressure fuel rail.
Table 1
Required Tools
Tool Part Number Part Description Qty
A 6V-6195 Interlocking Joint Pliers 1
B 339-9352 Inj. Sys Cap Kit 1
265-2256 Wipers 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, NENG2500, "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.
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Do not open the high pressure fuel system without allowing the fuel system to purge. After the engine has shut down, allow the fuel system to purge for ten minutes. This operating fuel system contains high pressure. Exposure to high pressure fuel can result in personal injury.
Note: Use Tooling (B) to cap tube assemblies, fittings, ports, and any opening in the fuel system in order to prevent contamination.Note: Do not remove all the quills in order to maintain the alignment of the rail. Remove one at a time and replace before the removal of the next. If necessary, replace with new quill.
Illustration 1 g02087086
Remove bolt (3) and the washer. Remove tube assembly (1). Disconnect harness assembly (2).
Illustration 2 g02087089
Apply clean engine oil to area (X). Repeat for the opposite collar. Remove bolts (4) and bolts (6). Remove tube assembly (5). Note: Replace with new bolts (4) and (6)
Illustration 3 g02087090
Use Tooling (A) to remove flow limiter (7) from the fuel rail. Note: Apply protective caps to flow limiter (7 ) in order to prevent contamination. Clean Tooling (A) before using in order to avoid contamination in the fuel system.Installation Procedure
Table 2
Required Tools
Tool Part Number Part Description Qty
A 6V-6195 Interlocking Joint Pliers 1
B 339-9352 Inj. Sys Cap Kit 1
265-2256 Wipers 1 Note: When Tooling (B) is removed be careful to prevent contamination.
Install the flow limiter (7) in the reverse order of removal.
Install new bolts (4) and new bolts (6) hand tight. Evenly tighten new bolts (4) to a torque of 20 N m (15 lb ft). Evenly tighten new bolts (6) to a torque of 20 N m (15 lb ft). Evenly tighten new bolts (4) to a torque of 40 N m (30 lb ft). Evenly tighten new bolts (6) to a torque of 40 N m (30 lb ft).