New Holland CX720 Repair Manual page 1851

FUEL AND INJECTION SYSTEM - Static description (B.20.A -
C.30.A.20)
The New Holland 7.5 Litre engine is fitted with either a mechanically controlled governor Bosch P7100 in line fuel
injection pump.
or
Electronically controlled Bosch P7100 in line fuel injection pump .
Further explanation on the operation of these pumps is given on Fuel injection pump - Static description (B.20.A.21
- C.30.A.20).
The fuel system irrespective of the type of fuel pump installed is fitted with a fuel prefilter (1) and water separator (2)
located beneath the fuel tank.
The primary purpose of this assembly is to remove water and solid contaminates from the fuel before the fuel enters
the gallery of the injection pump. The plunger and barrel assemblies (pumping elements) of the injection pump are
matched to each other with an accuracy of a few ten thousandths of an inch. Impurities of this size can cause severe
damage, or excessive wear, to the injection pump and injector assemblies.
A separate fuel filter (1) and water separator (2) is also installed immediately before the fuel enters the injection pump.
POWER PRODUCTION - FUEL AND INJECTION SYSTEM
1
BSD1882A
2
BSD1847A_822
3
ZDA2720A
2 4/7/2006
B.20.A / 21