Doosan D1146 - PU086 T

5) PU086T
(1) Main Specification
Fuel Injection Pump : 65.11101-7271A
Model Type : PES6AD
Governor Type : RSV
Fuel Feed Pump : 105210-4830
Cam Lift : 11 mm
Injection Timing : BTDC 12°
± 1°
Injection Order : 1-5-3-6-2-4
Rotating Direction : Clockwise (Viewed at driving gear side)
(2) Calibration Data
- 136 -
(A) Test condition
Nozzle & Holder Ass’y 105780-8140
Opening pressure :175kg/cm
2
for injection pump
Injection pipe(ID ,OD ,L) - 2.0 x 8.0
– 600 mm
Test oil ISO4113 Temperature : 40
± 5 ˚C
Nozzle & holder Ass’y
Nozzle (5 x 0.36)
(B) Engine standard parts 65.10101-7050 214 + 8 kg/cm
2
Injection pipe (ID, OD, L) - 6 x 2.2
–
650 mm
Rack diagram and setting valve at each point
Rack Pump
Injection Q`ty on RIG
Refer to (3) Rack Diagram Check
position speed
(mm
3
/ 1,000st) Press.
point
(mm) (rpm)
(A) Test condition Max. Var. (mmHg)
for inj. Pump Bet. Cyl. (%)
A 10.5 1100 113.5 ± 2 ± 2.5 Full
B 7.9 370 11.5 ± 2 ± 25 Idle
C
~
~
100 - - -
Balance Weight 740g Lever ratio(min/max) 1 : 1.2
Governor spring k = 7.2 kg/mm Plunger 9.5 , 20+45 lead
Idle spring k = 1.9 kg/mm Delivery valve retraction volume 70 mm3/st, t=0.11
Idle sub spring k = 3.0 kg/mm Delivery valve opening pressure 23.1 kg/cm
2
Start spring k = 0.01 kg/mm Delivery valve spring k = 1.63 kg/mm
Max. discharge pressure k = 3.4 kg/mm
2
Feed pump
105210-5280
(KP-FP/KE-ADS)