7
102
_07
A
Fig. 7.39
Fig. 7.40
M
B
D
E
G
N
Fig. 7.41
D
Q
R
P
Fig. 7.42
S
V
U
T
T
A
AA
ED0053029590
INFORMATION FOR DISASSEMBLY
7.10 Fuel system disassembly
7.10.1 Fuel return pipes
1 - Release the clips A.
Warning
• After removing the unions, the clips A must automatically
return to their initial position; otherwise they must be replaced.
2 - Undo the B distributor return fixing capscrew.
3 - Release the clamp D.
4 - Disconnect the pipe E from the fuel return fitting.
5 - Undo and remove the screw G with the relative gaskets
and put the cap on the Common Rail pressure relief valve
AA.
6 - Disconnect unions M from electronic injectors N.
7 - Remove the fuel return pipes.
7.10.2 Fuel ow pipes
Important
• Seal all openings of the inlet and return unions on the injection
pump D with the relevant caps, in order to prevent impurities
from entering.
1 - Loosen the clamps P.
2 - Remove the pipes Q and R.
7.10.3 High pressure fuel pipes
Danger
• The fuel injection circuit undergoes high pressure, use safety
protections as described in Para 3.4.3.
• Ensure that the Common Rail is not under pressure by slowly
and carefully unscrewing one of the nuts S.
1 -
Loosen the nuts S and T in sequence.
2 - Fully undo the nuts S and T in sequence, and remove the
high pressure pipes U and V.