Daewoo DE12T - Page 124

7) DE12TIA (EBIEC)
(1) Fuel injection pump : 65.11101-7368A (106675-4590 DOOWON)
(Modified by 65.11101-7300A injection pump)
- Fuel injection pump : KP-PE6P120/720RS3S (106067-6150 DOOWON)
- Governor : KP-EP/RSV200-1300PQ39C311(105407-7590)
- Fuel feed pump : KP-FP/K-PS (105207-1520)
- Coupling : 105663-0470
(2) Nozzle holder assembly : 65.10101-7300 (105160-4351 DOOWON)
(3) Nozzle : 65.10102-6046 (105029-1330 DOOWON)
(4) Fuel injection pipe : 65.10301-6289
(5) Injection order : 1 – 5 – 3 – 6 – 2 – 4
- 120 -
MAINTENANCE OF MAJOR COMPONENTS
(A) Test condition for Nozzle & Holder ass’y 105780-8140 Opening pressure :175 bar
Fuel injection pump Nozzle 105780-0000 -
Fuel Injection pipe (IDBOD-L) - N 3.0 B N 8.0 - 600 mm
Test oil ISO4113 Temperature :40 L 5 ˚C
(B) Engine standard 65.10102-6046 Nozzle (5 B N 0.31)
parts
Nozzle & holder ass’y
65.10101-7300 Opening pressure : 220 kg/cm
2
Fuel Injection pipe (IDBOD-L) 65.10301-6289 N 2.2 B N 6 - 650 mm
Rack diagram and setting valve at each point
Check
Rack Pump
Injection Q`ty on RIG
point
position speed
(mm
3
/ 1,000st)
Pressure
Test condition for inj. pump
(mmHg)
(mm) (rpm)
A 12.1 1,000 173.5 L 2 Basis
B 6.5 500 16.5 L 1.5 -
C 12.1 700 176 L 4-
E - 100 -
Rack limit
F 7.2 1100 -
-
Governor weight 740 g Lever ratio(min./max.) 1 : 1.2 / 1 : 1.2
Governor spring k = 7.2 kgf/mm Boost compensator spring k = 0.51 kgf/mm
Idle sub spring k = 1.2 kgf/mm Adapter spring k = 6.5 kgf/mm
Start spring k = 0.01 kgf/mm Retraction pressure 130mm
3
/st(N8B2.6mm), t = 0.07
Plunger N12 right hand 22+45 lead
Delivery
Opening pressure 19.6 kgf/cm
2
Idle spring k = 1.9 kgf/mm
valve
Spring k = 0.87 kgf/mm
Boo. com stroke :
Rack position(mm)
Pump speed(rpm)
BF
6
800
4
2
2000 600400 140012001000
F
18
16
14
12
10
8
C
A