Removal Procedure:
CAUTION
Be sure all adjustments and repairs to the fuel system are performed by authorized personnel with proper training.
Before beginning any work on the fuel system, refer to the Operation and Maintenance Manual, "General Hazard Information and High-Pressure Fuel Lines" for safety information.
For detailed information on the cleanliness standards that must be observed during all fuel system work, refer to Systems Operation, Testing and Adjusting, "Fuel System Component Cleanliness".
1. Turn the fuel supply to the disconnect position.
CAT Comm Adapter 3 478-0235 Diagnostics for Caterpillar
2. Place a temporary identification mark on the tube assembly and hose assembly to show the correct position.
3. Place a suitable container under the primary fuel filter to catch any fuel that may spill.
4. Disconnect the hose assembly (6) from the primary fuel filter (2).
5. Use Tool (A) to plug the fitting on the primary fuel filter base (2).
6. Use Tool (A) to cover the hose assembly (6).
7. Remove the hollow bolt (4) and the sealing washer (3) (not shown).
8. Use Tool (A) to cover the tube assembly (5).
9. Use Tool (A) to plug the primary fuel filter base (2).
10. Remove the bolts (1) and remove the primary fuel filter (2) from the primary fuel filter mounting bracket
11. If necessary, remove the primary fuel filter mounting bracket from the cylinder head. Follow steps 3.
a to 3.c to remove the primary fuel filter mounting bracket.
a. Remove bolts (7) and bolts (9) from the primary fuel filter mounting bracket (10).
b. Remove mounting bracket (12) from cylinder head (8)
12. If necessary, disassemble primary fuel filter (2) by following steps 12.a through 12.d.
a. Remove plug (11) and gasket (12). Use Tool (A) to plug primary fuel filter base (2).
b. Remove fitting (16), then remove gasket (16). Use Tool (A) to plug primary fuel filter base
(2). Use Tool (A) to cover fitting (16).
c. Remove plug (13) and gasket (14). Use Tool (A) to plug primary fuel filter base (2).
d. Remove fuel filter element (17). Refer to Operation and Maintenance Manual, "Fuel System Primary
Filter (Water Separator) Element - Replace" for the correct procedure.
Installation Procedure:
CAUTION
Be sure all adjustments and repairs to the fuel system are performed by authorized personnel with proper training.
Before beginning any work on the fuel system, refer to the Operation and Maintenance Manual,
"General Hazard Information and High-Pressure Fuel Lines" for safety information.
For detailed information on the cleanliness standards that must be observed during all fuel system work,
refer to System Operation, Testing and Adjusting, "Fuel System Component Cleanliness"
1. Make sure the primary fuel filter base is clean and free of damage. If necessary, replace the entire
primary fuel filter base and filter assembly.
2. If necessary, assemble the primary fuel filter (2) by following Steps 2.a through 2.d.
a. Install new sealing gasket (12) to plug (11). Install plug (11) to primary fuel filter (2). Tighten plug to 23 N·m (204 lb in) torque.
b. Install new sealing gasket (15) to fitting (16). Install fitting (16) to primary fuel filter (2). Tighten fitting to 23 N·m (204 lb in) torque.
c. Install new gasket (14) to plug (13). Install plug (13) to primary fuel filter (2). Tighten plug to 23 N·m (204 lb in) torque.
d. Install new filter element (17). Refer to Operation and Maintenance Manual, "Fuel System Primary Filter (Water Separator) Element - Replace" for correct procedure.
3. If necessary, install primary fuel filter mounting bracket to cylinder head. Install primary fuel filter mounting bracket by following steps 3.a through 3.c.
a. Position primary fuel filter mounting bracket (10) to cylinder head (8).
b. Install bolts (7) and bolts (9) onto the primary fuel filter mounting bracket (9).
c. Tighten bolts (7) to a torque of 44 N·m (32 lb ft).
Tighten bolts (9) to a torque of 22 N·m (195 lb in)
4. Position the primary fuel filter assembly (2) onto the primary fuel filter mounting bracket.
5. Install bolts (1) onto the primary fuel filter assembly (2). Tighten bolts to a torque of 44 N·m (32 lb ft).
CAUTION
Ensure that the plastic tube assembly and tube assembly are installed in their original positions. Failure to connect the plastic tube assembly
to the correct port will allow contaminants to enter the fuel system. If contaminated fuel
enters the fuel system, severe engine damage will result.
6. Remove the plug from the primary fuel filter base (2).
7. Remove the cap from the tube assembly (5).
8. Position the new sealing gasket (3) (not shown) onto the banjo bolt (4). Install the banjo bolt (4) into the tube assembly
(5), then install the remaining new sealing gaskets (3) (not shown). Tighten the banjo bolt (4) by hand.
9. Tighten the banjo bolt (4) to a torque of 21 N·m (186 lb in).
10. Remove the cap from the hose assembly (5).
11. Remove the plug from the fitting on the primary fuel filter base (2).
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12. Connect the hose assembly (5) to the fitting on the primary fuel filter base (2)
13. Turn the fuel supply to the on position.
End:
a. Bleed the air from the fuel system. Refer to the Operation and Maintenance Manual, "Fuel System - Prime" for the correct procedure.
