New Holland SmartTrax T8.320 Service Manual page 52

High Pressure Pump
(1) Outlet to common rail
(2) High pressure pump
(3) Pressure regulator valve (Mprop)
(4). Drive gear
(5) Inlet supply from final filter
(6) Return to tank
(7) Inlet from ECU cooling plate
(8) Outlet to final filter
(9) Gear low pressure pump
The CP3 pump is a radial piston pump. It has three pis-
tons that are spring loaded against a common eccentric
shaft. In one revolution of the pump shaft each piston has
completed a pumping cycle. Each piston is spring loaded
to push the piston against the rotary coupling on the ec-
centric shaft.
Each pumping element has an inlet valve and an outlet
valve. The valves act as check valves; the inlet valve
allows low pressure fuel that is metered by the regulator
valve to inter the pumping chamber while the outlet valve
only allows the fuel to exit the pumping chamber and go
to the common rail.
Engine - Engine and crankcase
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