New Holland CX720 Repair Manual page 1863

The schematic shown above illustrates the various features which control or influence pump fuelling, it also includes
the optional cold start aid described in Cold start aid - Static description (B.80.A.30 - C.30.A.20).
Servicing of the actuator components and injection pump must be performed by an authorised service agent.
Identification of components not located within the injection pump housing are as follows:-
Electronic control unit
Located on the vehicle structure to the left hand side of the engine. The unit monitors and controls engine operations.
If the unit fails the engine will stop.
Boost pressure and temperature sensor
Located on the inlet manifold the sensor is used for smoke control
if the sensor fails the engine speed and fuel quantity may be reduced.
Coolant temperature sensor
Located adjacent to the water pump and top engine hose.
The sensor is used for cold start and over heat protection. If the sensor fails cold start capability may be reduced and
overheat protection will be lost.
POWER PRODUCTION - FUEL AND INJECTION SYSTEM
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