Technical Data: TD/TAD720-722, TAD730-733, TAD750/760
74
Group 20
Fuel feed pump
Fuel system figures is corresponding to the picture above
Overpressure relief valve (1):
Opening pressure ............................................... 0.6
±0.05
MPa (87
±7.2
psi)
1)
Bypass valve (2)
Opening pressure ............................................... 50
±5
kPa (7.2
±0.7
psi)
Fuel flow
Min fuel flow at 1500 rpm ...................................... 600 l/tim (158.5 gal/hour)
Firing sequence .................................................... 1-5-3-6-2-4
Feed pressure ....................................................... 0.5 MPa (72.5 psi)
Feed pressure after fuel filter at
1500 rpm. min .................................................... 0.28 MPa (40.6 psi)
Fuel filter
Filtering size ......................................................... 0.005 mm (0.0002")
Pre-filter
Filtering size ......................................................... 0.006 mm (0.00024")
In
Out
Fuel specification
The fuel must be approved according to national and international standards for commercial fuels for example:
EN 590 (with environmental and sub-zero temperature specifications according to national requirements)
ASTM D 975 No 1-D and 2-D
JIS KK 2204
Sulfur content: According to current legislation in the respective country.
NOTE! Fuels with extremely low sulfur contents (ex City diesel in Sweden and Finland) can cause a drop in power
output of 5% and an increase in fuel consumption of 2–3%.
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