Doosan PU158TI - Injection Pump Calibration; P158 LE Series Engine

Maintenance of Major Components
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5.1.9. Injection pump calibration
1) P158LE series engine
(1) Injection pump : 65.11101-7301 (0 402 618 813 BOSCH)
– Model : PE8P120A500/4LS7935 (0 412 628 937)
– Governor : Ghana control(DWA-2000)
– 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 at 13 ± 1.5 mm
(2) Nozzle holder assembly : 65.10101-7051 (0 432 131 667)/65.10101-7053(0 432 131 669)
(3) Nozzle : 65.10102-6047 (0 433 171 174)/65.10102-6070(0 433 171 169)
(4) Injection pipe : 65.10301-6053A, 65.10301-6054A
(5) Injection order : 1 – 5 – 7 – 2 – 6 – 3 – 4 – 8
(A) Test condition for
injection pump
Nozzle & holder ass’y 1 688 901 105 Opening pressure : 208.5
± 1.5 bar
Injection pipe (ID ,OD ,L)
– 3.0 × 8.0 – 600 mm
Test oil ISO4113 Temperature : 40
± 5 ° C
(B) Engine standard
parts
Nozzle & holder ass’y
65.10101-7051 Nozzle (4 × 0.40)
285 kg/cm
2
Injection pipe(ID, OD ,L)
65.10301-6053
65.10301-6054
2 × 6 – 650 mm
Rack diagram and setting valve at each point
Standby power
Check
point
Rack
position
(mm)
Pump
speed
(rpm)
Injection Q’ty on RIG
(mm
3
/ 1,000 st)
Press.
(mmHg)
(A) Test condition
for inj. pump
(B) Engine
standard parts
A 12.6 700 304
± 3 ––
––– – – –
––– – – –
––– – – –
––– – – –
Boost pressure : zero boost