Doosan DP158LDF - Adjustment Fuel Injection Pump

8. Fuel system
147
Adjustment Fuel Injection Pump
1. DP158L (60Hz)
1) Fuel injection pump : 65.11101-7301 (0 402 618 813)
• Model : PE8P120A500/4LS7935 (0 412 628 937)
• Governor : Doosan electronic governor
• Plunger & Barrel : 2 418 455 545
• Delivery valve : 2 418 559 045
• Feed pump : FP/KD22P78-2 (0 440 008 152)
• Prestroke : 4.5 ± 0.05 mm (13 ± 1.5 mm)
2) Nozzle holder assembly : 65.10101-7051 (0 432 131
667)
3) Nozzle : 65.10102-6047 (0 433 171 174)
4) Injection pipe : 420208-00453, 420208-00454
5) Firing order : 1 - 5 - 7 - 2 - 6 - 3 - 4 - 8
6) Fuel injection timing : BTDC 23°
Rack diagram and setting valve at each point
(A)Test condition for injec-
tion pump
Nozzle & Holder Ass'y 1688 901 019 Opening pressure : 210 bar
Injection pipe (ID X OD - L) -
Ø3.0 x Ø8.0-1,000 mm
Test oil ISO4113
Temperature : 40 ± 5 °C
(B)Engine standard parts
Nozzle & Holder Ass'y 65.10101-7051
Nozzle (4 x Ø0.40)Opening
pressure : 280 bar
Injection pipe (ID X OD -L)
420208-00453,
420208-00454
Ø2.0 x Ø6.35-750 mm
Stand by
Power
Check Point
Rack Position
(mm)
Pump Speed
(rpm)
Injection Q’ty on RIG
(mm
3
/1,000st)
Pressure
(mmHg)
(A)Tes
t
(
mmHg) condi-
tion for Inj.
pump
(B)Engine stan-
dard parts
A 16.0 900 432 - -
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