SPROCKET-CRC 5049443 - Caterpillar

Illustration 1 g00659526
(1) Strainer
(2) Seal
(3) Cover
If the fuel pressure is less than the minimum pressure, the fuel transfer pump must be repaired or replaced. Refer to the Disassembly and Assembly Module, "Fuel Transfer Pump - Remove" topic for additional information. If the fuel pressure is low, remove cover (3) and seal (2). Inspect strainer (1) for debris.Clean the cover, the seal, and the strainer with a nonflammable solvent. Carefully wash any debris from the chamber of the pump.
Assemble the fuel transfer pump. Ensure that the cover of the fuel transfer pump is secure so that air cannot enter the system. Remove the air from the fuel transfer pump. Refer to the Testing and Adjusting section, "Remove Air From The Fuel System" topic in this module.
Illustration 2 g00508433
Inspect the components of the fuel transfer pump.
(4) Pivot pin
(5) Link arm
(6) Rocker lever
Measure the fuel pressure again. If the pressure remains low, remove the fuel transfer pump from the engine. Inspect the installation of the pivot pin in the rocker lever and the link arm. If pivot pin (4) fits loosely in rocker lever (5) and link arm (6), replace the fuel transfer pump. If the pivot pin, the rocker lever, or the link arm are damaged, replace the fuel transfer pump.
Install the fuel transfer pump on the engine. Refer to the Disassembly and Assembly Module, "Fuel Transfer Pump - Install" topic. Clean the threads of the bolts or the studs and nuts. Apply 4C-4030 Thread Lock Compound to the first three threads of the bolts or studs. Refer to the Specifications module, "Fuel Transfer Pump" topic for the torque for tightening the bolts or the nuts and studs.