Rating:
Information injection-pump assembly
ZEXEL
101472-3820
1014723820
KOMATSU
6144711510
6144711510
Cross reference number
ZEXEL
101472-3820
1014723820
KOMATSU
6144711510
6144711510
| Zexel num | Bosch num | Firm num | Firm | Name |
|
101472-3820
101472-3830 |
6144711510 | KOMATSU |
INJECTION-PUMP ASSEMBLY
4D94 * K |
Calibration Data:
Adjustment conditions
Test oil
1404 Test oil ISO4113 or {SAEJ967d}
1404 Test oil ISO4113 or {SAEJ967d}
Test oil temperature
degC
40
40
45
Nozzle and nozzle holder
105780-8140
Bosch type code
EF8511/9A
Nozzle
105780-0000
Bosch type code
DN12SD12T
Nozzle holder
105780-2080
Bosch type code
EF8511/9
Opening pressure
MPa
17.2
Opening pressure
kgf/cm2
175
Injection pipe
Outer diameter - inner diameter - length (mm) mm 6-2-600
Outer diameter - inner diameter - length (mm) mm 6-2-600
Tester oil delivery pressure
kPa
157
157
157
Tester oil delivery pressure
kgf/cm2
1.6
1.6
1.6
Direction of rotation (viewed from drive side)
Right R
Right R
Injection timing adjustment
Direction of rotation (viewed from drive side)
Right R
Right R
Injection order
1-2-4-3
Pre-stroke
mm
2.2
2.15
2.25
Beginning of injection position
Drive side NO.1
Drive side NO.1
Difference between angles 1
Cyl.1-2 deg. 90 89.5 90.5
Cyl.1-2 deg. 90 89.5 90.5
Difference between angles 2
Cal 1-4 deg. 180 179.5 180.5
Cal 1-4 deg. 180 179.5 180.5
Difference between angles 3
Cal 1-3 deg. 270 269.5 270.5
Cal 1-3 deg. 270 269.5 270.5
Injection quantity adjustment
Adjusting point
A
Rack position
11.1
Pump speed
r/min
700
700
700
Average injection quantity
mm3/st.
43
42
44
Max. variation between cylinders
%
0
-2
2
Basic
*
Fixing the lever
*
Injection quantity adjustment_02
Adjusting point
B
Rack position
8.8+-0.5
Pump speed
r/min
350
350
350
Average injection quantity
mm3/st.
9
8.2
9.8
Max. variation between cylinders
%
0
-15
15
Fixing the rack
*
Remarks
Adjust only variation between cylinders; adjust governor according to governor specifications.
Adjust only variation between cylinders; adjust governor according to governor specifications.
Test data Ex:
Governor adjustment
N:Pump speed
R:Rack position (mm)
(1)Target notch: K
(2)RACK CAP: R1
(3)Idle sub spring setting: L1.
----------
K=7 R1=18+1mm L1=7.7-0.5mm
----------
----------
K=7 R1=18+1mm L1=7.7-0.5mm
----------
Speed control lever angle
F:Full speed
S:Stop
(1)Set the pump speed at aa. ( At delivery )
(2)Pump speed = bb
----------
aa=900r/min bb=750r/min
----------
a=4deg+-5deg b=6deg+-5deg c=32deg+-3deg
----------
aa=900r/min bb=750r/min
----------
a=4deg+-5deg b=6deg+-5deg c=32deg+-3deg
Stop lever angle
N:Pump normal
S:Stop the pump.
----------
----------
a=11.5deg+-5deg b=53deg+-5deg
----------
----------
a=11.5deg+-5deg b=53deg+-5deg
Timing setting
(1)Pump vertical direction
(2)Position of key groove at No 1 cylinder's beginning of injection
(3)Stamp aligning marks on the pump housing flange.
(4)-
(5)-
----------
----------
a=50deg24min+-3deg b=9deg36min+-30min
----------
----------
a=50deg24min+-3deg b=9deg36min+-30min