Product description
Service and Repair Manual
Function description
Fuel diagram
Fig. 21: Fuel diagram
a
Low pressure – single walled
c
High pressure – double
walled
CR
Customer responsibility
b
Return line – single walled
d
Depending on engine config-
uration
1
Fuel tank
4.1
B709 – Before fuel filter
(Temperature)
6
Connecting block
2
Fuel prefilter & water sepa-
rator
4.2
B702 – After fuel filter (Pres-
sure)
7
Injectors A1 – B8
2.1
Servicing point
5
High pressure pump A and B
8
Break leakage detection
block (if available)
2.2
B710 – WIF pre-filter 1
5.1
Y703 and Y704 – Fuel pump
VCV
8a
B7921 – HP leakage detec-
tion Bank A (Leakage)
2.3
B745 – WIF pre-filter 2
5.2
Y708 and Y707 – Fuel pump
PCV 1
8b
B7922 – HP leakage detec-
tion Bank B (Leakage)
3
Low pressure pump
5.3
Y728 and Y727 – Fuel pump
PCV 2
9
Fuel cooler (optional)
See next page for continuation of the image legend
30
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KD83V16 33525088901_2_1 EN_US
2021-07