GEAR (39 & 28 T.) 2F6052 - Caterpillar

Fuel leaked or spilled onto hot surfaces or electrical components can cause a fire. To help prevent possible injury, turn the start switch off when changing fuel filters or water separator elements. Clean up fuel spills immediately.
Do not allow dirt to enter the fuel system. Thoroughly clean the area around a fuel system component that will be disconnected. Fit a suitable cover over any disconnected fuel system components.
Use a suitable container to catch any fuel that might spill. Clean up any spilled fuel immediately.
Specifications
Table 1
Parameter Value
Fuel Manifold Pressure 415 to 620 kPa (60 to 90 psi)
Fuel Transfer Pump Pressure 415 to 620 kPa (60 to 90 psi) Introduction
Use this procedure to check the regulated fuel pressure.Required Tools
Table 2
Required Tools Qty
1U-5470 Engine Pressure Gp 1
Illustration 1 g03779828
1U-5470 Engine Pressure Group
(1) Pressure indicators
(2) Zero adjustment screw
(3) Pressure indicator
(4) Pressure tap
(5) Pressure indicatorThis tool group has an indicator that is used to read the pressure in the fuel manifolds. The Special Instruction, SEHS8907 is with the tool group.Test Preparation - Transfer Pump and Manifold Pressure
Illustration 2 g06299095
(6) Line from fuel filter to fuel manifolds (filtered fuel)
(7) Plug (unfiltered fuel)
(8) Fuel line from transfer pump
(9) Plug (filtered fuel)
(10) Fuel filter
Turn off the engine.
Slowly loosen plugs (7) and (9).
Connect the 1U-5470 Engine Pressure Gp into the unfiltered fuel pressure tap (7).
Connect the 1U-5470 Engine Pressure Gp into the filtered fuel pressure tap (9).Test Procedure - Transfer Pump and Manifold Pressure
Start the engine.
Operate the engine at rated speed and load.
Note the pressure readings.If the pressures are not within the specifications, refer to Troubleshooting, "Fuel Pressure Is High (Diesel Fuel)", Troubleshooting, "Fuel Pressure Is Low (Diesel Fuel)", and Troubleshooting, "Fuel Filter Is Restricted".