Rating:
Information injection-pump assembly
ZEXEL
101472-3791
1014723791
KOMATSU
6144711211
6144711211
Cross reference number
ZEXEL
101472-3791
1014723791
KOMATSU
6144711211
6144711211
Zexel num
Bosch num
Firm num
Name
101472-3791
6144711211 KOMATSU
INJECTION-PUMP ASSEMBLY
4D94 * K
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
8.4
Pump speed
r/min
1450
1450
1450
Average injection quantity
mm3/st.
38.5
37.5
39.5
Max. variation between cylinders
%
0
-2
2
Basic
*
Fixing the lever
*
Injection quantity adjustment_02
Adjusting point
B
Rack position
7.5+-0.5
Pump speed
r/min
275
275
275
Average injection quantity
mm3/st.
8
7.2
8.8
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 difference between N = N1 and N = N2
----------
K=5 N1=1450r/min N2=900r/min
----------
----------
K=5 N1=1450r/min N2=900r/min
----------
Speed control lever angle
F:Full speed
I:Idle
(1)Set the pump speed at aa
(2)Stopper bolt setting
----------
aa=900r/min
----------
a=35deg+-5deg b=32deg+-5deg c=15deg+-5deg
----------
aa=900r/min
----------
a=35deg+-5deg b=32deg+-5deg c=15deg+-5deg
Stop lever angle
N:Pump normal
S:Stop the pump.
----------
----------
a=26.5deg+-5deg b=53deg+-5deg
----------
----------
a=26.5deg+-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
Have questions with 101472-3791?
Group cross 101472-3791 ZEXEL
Komatsu
101472-3791
6144711211
INJECTION-PUMP ASSEMBLY
4D94
4D94