Rating:
Information injection-pump assembly
ZEXEL
104749-6060
1047496060
ISUZU
8941676840
8941676840
Cross reference number
ZEXEL
104749-6060
1047496060
ISUZU
8941676840
8941676840
Zexel num
Bosch num
Firm num
Name
104749-6060
8941676840 ISUZU
INJECTION-PUMP ASSEMBLY
4FC1-J * K
4FC1-J * K
Calibration Data:
Adjustment conditions
Test oil
1404 Test oil ISO4113orSAEJ967d
1404 Test oil ISO4113orSAEJ967d
Test oil temperature
degC
45
45
50
Nozzle
105000-2010
Bosch type code
NP-DN12SD12TT
Nozzle holder
105780-2080
Opening pressure
MPa
14.7
14.7
15.19
Opening pressure
kgf/cm2
150
150
155
Injection pipe
Inside diameter - outside diameter - length (mm) mm 2-6-840
Inside diameter - outside diameter - length (mm) mm 2-6-840
Transfer pump pressure
kPa
20
20
20
Transfer pump pressure
kgf/cm2
0.2
0.2
0.2
Direction of rotation (viewed from drive side)
Right R
Right R
Injection timing adjustment
Pump speed
r/min
1250
1250
1250
Average injection quantity
mm3/st.
34.2
33.7
34.7
Difference in delivery
mm3/st.
2.5
Basic
*
Injection timing adjustment_02
Pump speed
r/min
2600
2600
2600
Average injection quantity
mm3/st.
15.6
14.1
17.1
Injection timing adjustment_03
Pump speed
r/min
2250
2250
2250
Average injection quantity
mm3/st.
32.7
30.6
34.8
Injection timing adjustment_04
Pump speed
r/min
1800
1800
1800
Average injection quantity
mm3/st.
33.7
31.7
35.7
Injection timing adjustment_05
Pump speed
r/min
1250
1250
1250
Average injection quantity
mm3/st.
34.2
33.2
35.2
Injection timing adjustment_06
Pump speed
r/min
600
600
600
Average injection quantity
mm3/st.
28.2
26.2
30.2
Injection quantity adjustment
Pump speed
r/min
2600
2600
2600
Average injection quantity
mm3/st.
15.6
14.6
16.6
Difference in delivery
mm3/st.
4.5
Basic
*
Injection quantity adjustment_02
Pump speed
r/min
2900
2900
2900
Average injection quantity
mm3/st.
4
Governor adjustment
Pump speed
r/min
375
375
375
Average injection quantity
mm3/st.
7.5
5.5
9.5
Difference in delivery
mm3/st.
2
Basic
*
Governor adjustment_02
Pump speed
r/min
375
375
375
Average injection quantity
mm3/st.
7.5
5.5
9.5
Governor adjustment_03
Pump speed
r/min
500
500
500
Average injection quantity
mm3/st.
0
0
0
Boost compensator adjustment
Pump speed
r/min
1200
1200
1200
Average injection quantity
mm3/st.
7.2
6.2
8.2
Timer adjustment
Pump speed
r/min
100
100
100
Average injection quantity
mm3/st.
60
50
70
Basic
*
Speed control lever angle
Pump speed
r/min
375
375
375
Average injection quantity
mm3/st.
0
0
0
Remarks
Magnet OFF
Magnet OFF
0000000901
Pump speed
r/min
1250
1250
1250
Overflow quantity
cm3/min
459
330
588
Stop lever angle
Pump speed
r/min
1250
1250
1250
Pressure
kPa
470.5
451
490
Pressure
kgf/cm2
4.8
4.6
5
Basic
*
Stop lever angle_02
Pump speed
r/min
1250
1250
1250
Pressure
kPa
470.5
451
490
Pressure
kgf/cm2
4.8
4.6
5
Stop lever angle_03
Pump speed
r/min
2000
2000
2000
Pressure
kPa
637.5
608
667
Pressure
kgf/cm2
6.5
6.2
6.8
Stop lever angle_04
Pump speed
r/min
2250
2250
2250
Pressure
kPa
715.5
686
745
Pressure
kgf/cm2
7.3
7
7.6
0000001101
Pump speed
r/min
1250
1250
1250
Timer stroke
mm
3.9
3.7
4.1
Basic
*
_02
Pump speed
r/min
570
470
670
Timer stroke
mm
0.5
0.5
0.5
_03
Pump speed
r/min
1250
1250
1250
Timer stroke
mm
3.9
3.6
4.2
_04
Pump speed
r/min
1800
1800
1800
Timer stroke
mm
6.7
6.1
7.3
_05
Pump speed
r/min
2250
2250
2250
Timer stroke
mm
9
8.6
9.4
0000001201
Max. applied voltage
V
8
8
8
Test voltage
V
13
12
14
Timing setting
K dimension
mm
3.3
3.2
3.4
KF dimension
mm
5.8
5.7
5.9
MS dimension
mm
1.6
1.5
1.7
Pre-stroke
mm
0.25
0.23
0.27
Control lever angle alpha
deg.
20
16
24
Control lever angle beta
deg.
33.5
28.5
38.5
Test data Ex:
0000001801 MICROSWITCH ADJUSTMENT
Microswitch adjustment
Stepping motor adjustment
1. With the sub-lever and the control lever contacting the idle stopper bolt, adjust the length of the rod so that the stepping motor bracket and the stepping motor lever aligning mark are aligned (Tightening torque T).
A = rod
B = position of angle alignment marking
C = stepping motor bracket
D = stepping motor lever
2. Idle position adjustment
1) Fix so that idle stopper contacts the control lever.
2) Insert shim L1 between the sub-lever and the idle stopper.
3) Move the microswitch in the direction of the arrow to turn it ON.
4) Move the microswitch in the direction of the arrow and fix it where it turns OFF using the microswitch fixing bolt.
E = microswitch fixing bolt (Tightening torque T2)
3. Full position adjustment
1) 1) Fix so that sub lever contacts the control lever.
2) Insert a shim L2 between the control lever and the full stopper.
3) Turn the plate clockwise as shown in the figure above and confirm that the microswitch turns ON.
4) Move the plate counterclockwise and fix it where the microswitch turns OFF.
F = bolt (Tightening torque T2)
G = plate
----------
L1=1.2mm L2=0.7mm T1=3.4~4.9N-m(0.35~0.5kgf-m) T2=2.0~2.9N-m(0.2~0.3kgf-m)
----------
a=30+-1deg L1=1.2mm L2=0.7mm
----------
L1=1.2mm L2=0.7mm T1=3.4~4.9N-m(0.35~0.5kgf-m) T2=2.0~2.9N-m(0.2~0.3kgf-m)
----------
a=30+-1deg L1=1.2mm L2=0.7mm
0000001901 PARTIAL SETTING
Partial injection quantity adjustment
(A) Stopper bolt
(B) Fixed nut
(C) Sub lever stopper bolt
(D) Fixed nut
(E) Sub lever
1. At pump speed N1, adjust the stopper bolt (A) so that the idle injection quantity is Q1. Then fix using the nut (B).
2. Confirm that the idle injection quantity is Q2 when the pump speed is N2.
3. Insert a shim L1 between the sub lever (E) and the sub lever stopper bolt (C). Adjust the sub lever stopper bolt so that the injection quantity is Q3 at pump speed N3 and fix using the nut.
----------
N1=375r/min N2=500r/min N3=1200r/min Q1=5.5~9.5mm3/st Q2=0mm3/st Q3=6.2~8.2mm3/st L1=9.5+-0.1mm
----------
L1=9.5+-0.1mm
----------
N1=375r/min N2=500r/min N3=1200r/min Q1=5.5~9.5mm3/st Q2=0mm3/st Q3=6.2~8.2mm3/st L1=9.5+-0.1mm
----------
L1=9.5+-0.1mm
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Isuzu
104749-6060
8941676840
INJECTION-PUMP ASSEMBLY
4FC1-J
4FC1-J