48
EN
4.8.1
Hydraulic diagram of the fuel pump
Pressure
Return
Gears
Oil seal
A
By-pass screw
E
Nozzle
H
Filter
NC
Valve
P
Pressure gauge fitting
P1
Pressure adjustment screw
R
Return
S
Inlet
T
Pressure regulator
V
Vacuum gauge fitting
Fig. 18
4.8.2
Fuel pump
2
4
1
8
7
6
5
3
1
Solenoid valve
2
Solenoid valve connection
3
Fuel conveying pipe
4
Vacuum gauge fitting
5
Inlet
6
Return
7
Fuel pressure regulator
8
Pressure gauge fitting
Fig. 19