User Manual

Fuel Transfer Pump
(1) Unit injector hydraulic pump
(2) Fuel transfer pump
The fuel transfer pump is mounted on the back of the unit injector hydraulic pump. The fuel transfer pump is
the only serviceable part of the unit injector hydraulic pump. The fuel transfer pump is used in order to draw
fuel from the fuel tank . Also, the fuel transfer pump is used in order to pressurize the fuel to 450 kPa (65 psi).
The fuel transfer pump has an internal relief valve in order to protect the system. The pressurized fuel is
supplied to the injectors.