Warning:
Contact with high-pressure fuel may result in liquid seepage and burns. Spillage of high-pressure fuel may cause a fire. Failure to follow inspection, maintenance, and repair guidelines may result in personal injury or death.
Note: Ensure that all adjustments and repairs to the fuel system are performed by properly trained and authorized personnel.
Before commencing 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 followed during all fuel system operations,
see System Operation, Testing and Adjustment, "Fuel System Component Cleanliness."
CAT Comm Adapter 3 478-0235 Diagnostics for Caterpillar
Caution:
When inspecting, maintaining, testing, adjusting, and repairing products, ensure that any oily fluids are collected. Before opening any compartment or disassembling any component containing oil, prepare an appropriate container to collect the liquid.
Dispose of all oily fluids in accordance with local regulations and requirements.
1. Turn the fuel supply to the off position.
Caterpillar ET 2025A & 2019C Electronic Technician Diagnostic Software Download and Installation
2. Disconnect the hose assembly (2) from the injector. Remove the plastic tube assembly (3) from the clamp (1).
3. Cover the injector with tool (A). Plug the hose assembly (2) with tool (A).
4. Disconnect the hose assembly (6) from the connector of the plastic tube assembly (3).
5. Cover the connector of the plastic tube assembly (3) with tool (A). Plug the hose assembly (6) with tool (A).
6. Remove the hollow bolt (5) and then remove the sealing washer (4) (not shown).
7. Use tool (A) to plug the plastic tube assembly (3). Use tool (A) to plug the fuel filter base (12).
8. Remove clamp (10) from the plastic tube assembly (3) and plastic tube assembly (11).
9. Remove the plastic tube assembly (3) and plastic tube assembly (11) from clamps (8) and (9).
10. Disconnect the plastic tube assembly (11) from the fuel filter base (12).
11. Use tool (A) to plug the fuel filter base (12). Use tool (A) to cover the plastic tube assembly (11).
12. Disconnect the plastic tube assembly (3) and plastic tube assembly (11) from the fuel injection pump (7).
13. Use tool (A) to cover the connector of the fuel injection pump (7).
14. Use tool (A) to plug the plastic tube assembly (3) and the plastic tube assembly (11).
15. Disconnect the fuel injection pipe (13) from the injector (14).
16. Use tool (B) to disconnect the fuel injection pipe (13) from the fuel injection pump (7).
17. Remove the fuel injection pipe (13) as a single unit.
18. Use tool (A) to cover the port of the injector (14).
19. Use tool (A) to cover the port of the fuel injection pump (7).
20. If necessary, disassemble the fuel injection pipe assembly according to steps 20.a through 20.c.
a. Before disassembly, make temporary identification marks on all clamps to indicate their position and orientation. Remove clamps (15), (16), and (17) from the fuel injection pipe (13).
b. Before disassembly, make temporary identification marks on all clamps to indicate their position and orientation. Remove clamps (18), (19), and (20) from the fuel injection pipe (13).
c. Remove the fuel injection pipe (13). Note: Make temporary identification marks on all fuel injection pipes before disassembly.
