Information injection-pump assembly
ZEXEL
104749-6050
1047496050
ISUZU
8941548090
8941548090
Rating:
Cross reference number
ZEXEL
104749-6050
1047496050
ISUZU
8941548090
8941548090
Zexel num
Bosch num
Firm num
Name
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.
35.8
35.3
36.3
Difference in delivery
mm3/st.
3
Basic
*
Injection timing adjustment_02
Pump speed
r/min
2600
2600
2600
Average injection quantity
mm3/st.
16.1
14.6
17.6
Injection timing adjustment_03
Pump speed
r/min
2250
2250
2250
Average injection quantity
mm3/st.
33.6
31.5
35.7
Injection timing adjustment_04
Pump speed
r/min
1800
1800
1800
Average injection quantity
mm3/st.
35
33
37
Injection timing adjustment_05
Pump speed
r/min
1250
1250
1250
Average injection quantity
mm3/st.
35.8
34.8
36.8
Injection timing adjustment_06
Pump speed
r/min
600
600
600
Average injection quantity
mm3/st.
30.3
28.3
32.3
Injection quantity adjustment
Pump speed
r/min
2600
2600
2600
Average injection quantity
mm3/st.
16.1
15.1
17.1
Difference in delivery
mm3/st.
4.5
Basic
*
Injection quantity adjustment_02
Pump speed
r/min
2900
2900
2900
Average injection quantity
mm3/st.
4.5
Governor adjustment
Pump speed
r/min
340
340
340
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
340
340
340
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
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
340
340
340
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
0000001101
Pump speed
r/min
1250
1250
1250
Timer stroke
mm
3.6
3.4
3.8
Basic
*
_02
Pump speed
r/min
1250
1250
1250
Timer stroke
mm
3.6
3.3
3.9
_03
Pump speed
r/min
2000
2000
2000
Timer stroke
mm
6.9
6.3
7.5
_04
Pump speed
r/min
2500
2500
2500
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.
-3
-7
1
Control lever angle beta
deg.
37
32
42
Information:
GENERAL
1. Schematic
Schematic2. Specifications INSPECTION
1. Oil pumpVisually check the pump for rough rotation or other defects. Replace the pump assembly if defective.
Checking oil pump2. Oil pressure switch (1) Test for continuity between the terminal and body with an ohmmeter as shown in the illustration. No continuity is the cause for replacing the switch.
Testing oil pressure switch (1)(2) Insert a small diameter bar into the oil hole in the switch and lightly push it in to test for no continuity as shown in the illustration. Any continuity is the cause for replacing the switch.(3) Apply a pressure air of 0.5 kgf/cm2 (7 psi) [49 kPa] to the switch through the oil hole to test for no continuity. Any continuity is the cause for replacing the switch. Also, check for air leaks. Any air leak is an indication of a ruptured diaphragm. In such a case, replace the switch.
Testing oil pressure switch (2)3. Pressure relief valve (1) Check the valve seat for contact. Check the spring for damage.(2) Measure the oil pressure at which the relief valve opens (the oil pressure with the engine running at the rated rpm). If the pressure is not correct, remove the cap nut and increase or decrease the amount of shims. The engine oil pressure tap is located on the right side of the engine.
Checking pressure relief valve
1. Schematic
Schematic2. Specifications INSPECTION
1. Oil pumpVisually check the pump for rough rotation or other defects. Replace the pump assembly if defective.
Checking oil pump2. Oil pressure switch (1) Test for continuity between the terminal and body with an ohmmeter as shown in the illustration. No continuity is the cause for replacing the switch.
Testing oil pressure switch (1)(2) Insert a small diameter bar into the oil hole in the switch and lightly push it in to test for no continuity as shown in the illustration. Any continuity is the cause for replacing the switch.(3) Apply a pressure air of 0.5 kgf/cm2 (7 psi) [49 kPa] to the switch through the oil hole to test for no continuity. Any continuity is the cause for replacing the switch. Also, check for air leaks. Any air leak is an indication of a ruptured diaphragm. In such a case, replace the switch.
Testing oil pressure switch (2)3. Pressure relief valve (1) Check the valve seat for contact. Check the spring for damage.(2) Measure the oil pressure at which the relief valve opens (the oil pressure with the engine running at the rated rpm). If the pressure is not correct, remove the cap nut and increase or decrease the amount of shims. The engine oil pressure tap is located on the right side of the engine.
Checking pressure relief valve