Information injection-pump assembly
ZEXEL
104761-4131
1047614131
Rating:
Cross reference number
ZEXEL
104761-4131
1047614131
Zexel num
Bosch num
Firm num
Name
104761-4131
INJECTION-PUMP ASSEMBLY
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
750
750
750
Average injection quantity
mm3/st.
59
58.5
59.5
Difference in delivery
mm3/st.
3
Basic
*
Injection timing adjustment_02
Pump speed
r/min
1225
1225
1225
Average injection quantity
mm3/st.
13.8
10.3
17.3
Injection timing adjustment_03
Pump speed
r/min
1125
1125
1125
Average injection quantity
mm3/st.
53.3
50.8
55.8
Injection timing adjustment_04
Pump speed
r/min
750
750
750
Average injection quantity
mm3/st.
59
58
60
Injection timing adjustment_05
Pump speed
r/min
500
500
500
Average injection quantity
mm3/st.
57
54.5
59.5
Injection quantity adjustment
Pump speed
r/min
1225
1225
1225
Average injection quantity
mm3/st.
13.8
10.8
16.8
Difference in delivery
mm3/st.
4.5
Basic
*
Injection quantity adjustment_02
Pump speed
r/min
1300
1300
1300
Average injection quantity
mm3/st.
3
Governor adjustment
Pump speed
r/min
350
350
350
Average injection quantity
mm3/st.
16.6
14.6
18.6
Difference in delivery
mm3/st.
2
Basic
*
Governor adjustment_02
Pump speed
r/min
450
450
450
Average injection quantity
mm3/st.
3
Governor adjustment_03
Pump speed
r/min
350
350
350
Average injection quantity
mm3/st.
16.6
14.6
18.6
Timer adjustment
Pump speed
r/min
100
100
100
Average injection quantity
mm3/st.
70
55
85
Basic
*
Speed control lever angle
Pump speed
r/min
350
350
350
Average injection quantity
mm3/st.
0
0
0
Remarks
Magnet OFF at idling position
Magnet OFF at idling position
Speed control lever angle_02
Pump speed
r/min
125
125
125
Average injection quantity
mm3/st.
5
Remarks
Magnet OFF at full-load position
Magnet OFF at full-load position
0000000901
Pump speed
r/min
750
750
750
Overflow quantity
cm3/min
330
150
510
Stop lever angle
Pump speed
r/min
250
250
250
Pressure
kPa
157
137
177
Pressure
kgf/cm2
1.6
1.4
1.8
Basic
*
Stop lever angle_02
Pump speed
r/min
250
250
250
Pressure
kPa
157
137
177
Pressure
kgf/cm2
1.6
1.4
1.8
Stop lever angle_03
Pump speed
r/min
750
750
750
Pressure
kPa
313.5
284
343
Pressure
kgf/cm2
3.2
2.9
3.5
Stop lever angle_04
Pump speed
r/min
1100
1100
1100
Pressure
kPa
411.5
382
441
Pressure
kgf/cm2
4.2
3.9
4.5
0000001101
Pump speed
r/min
750
750
750
Timer stroke
mm
0.8
0.6
1
Basic
*
_02
Pump speed
r/min
750
750
750
Timer stroke
mm
0.8
0.5
1.1
_03
Pump speed
r/min
950
950
950
Timer stroke
mm
1.6
1.2
2
0000001201
Max. applied voltage
V
16
16
16
Test voltage
V
25
24
26
Timing setting
K dimension
mm
3
2.9
3.1
KF dimension
mm
5.2
5.1
5.3
MS dimension
mm
0.7
0.6
0.8
Control lever angle alpha
deg.
25
21
29
Control lever angle beta
deg.
40
35
45
Information:
Use of the Pickup During Wet Conditions
If the pickup becomes wet, it may operate intermittently or not at all. Although the pickup is water resistant, it is not waterproof. Water spray from rain or other sources may cause the pickup to stop producing an output signal.If this happens, the pickup should be removed from the engine and allowed to dry out thoroughly. If necessary, the pickup can be dried in an oven at approximately 50°C (122°F). After drying, the pickup should operate correctly.If it is not possible to keep the pickup dry, use the following procedure: If the pickup must be used during wet conditions, it may be possible to protect it from moisture by using a water displacing spray such as WD-40®.Remove the pickup from the engine. Thoroughly spray the pickup from all directions. Make sure the pickup is completely covered with the spray. Reinstall the pickup on the engine and check its operation.When water first contacts the pickup, the unit may stop working temporarily, but will start working again after the water has been displaced by the solution. If necessary, spray the solution on the pickup after installation on the injection line.Permanent Installation on the Engine
If the pickup is to be permanently installed on the engine, install the pickup on the fuel injection line in the usual manner. Make sure that the thumbscrew is hand tightened securely, but not over tightened. Run the engine and check the operation of the pickup.Make sure that the pickup and line are clean and dry. If the pickup is working correctly, use a can of spray paint to thoroughly paint the pickup from all directions. Several coats should be applied. Let the paint dry thoroughly before operating the engine.Checking the Operation of the Amplifier and Pickup
(1) 6V2100 Multitach. (2) 5P9698 Calibrator. (3) 5P7366 Power Cable. (4) Digital Multimeter. (5) Screwdriver. (6) 6V6152 Adapter. Screwdriver (5) should have a blade approximately 150 mm (6 in) long with 6 mm (.25 in) diameter shaft of round bare metal (not anodized or insulated).The 6V6152 Adapter (6) is a phono plug-to-BNC connector. Modifications must be made to the 5P9698 Calibrator (2). Refer to Special Instruction, SMHS7504-01.Checking the 4C6812 Amplifier
(1) 6V6152 Adapter Plug. (2) 5P9698 Calibrator. (3) 4C6812 Amplifier. (4) Connector. (5) 5P7366 Power Cable. (6) Knob. (7) Battery Indicator. (8) No Input Signal Light.1. Install 6V6152 Adapter Plug (1) on the end of the output cable on 5P9698 Calibrator (2). Plug the adapter into 4C6812 Amplifier (3).2. Check the operation of the multitach being used by performing the CHECKING PHOTO OPERATION test procedure contained in Special Instruction SEHS7807. (This is to ensure it is operating correctly on PHOTO operation.)3. Plug connector (4), on the end of the amplifier output cable, into the PH (photo) connector on the multitach. Attach 5P7366 Power Cable (5) to the multitach and to a suitable power source. Refer to SEHS7807.4. Program the multitach for .5 P/REV and to read R/MIN on the PH (photo) input. Turn knob (6) on
If the pickup becomes wet, it may operate intermittently or not at all. Although the pickup is water resistant, it is not waterproof. Water spray from rain or other sources may cause the pickup to stop producing an output signal.If this happens, the pickup should be removed from the engine and allowed to dry out thoroughly. If necessary, the pickup can be dried in an oven at approximately 50°C (122°F). After drying, the pickup should operate correctly.If it is not possible to keep the pickup dry, use the following procedure: If the pickup must be used during wet conditions, it may be possible to protect it from moisture by using a water displacing spray such as WD-40®.Remove the pickup from the engine. Thoroughly spray the pickup from all directions. Make sure the pickup is completely covered with the spray. Reinstall the pickup on the engine and check its operation.When water first contacts the pickup, the unit may stop working temporarily, but will start working again after the water has been displaced by the solution. If necessary, spray the solution on the pickup after installation on the injection line.Permanent Installation on the Engine
If the pickup is to be permanently installed on the engine, install the pickup on the fuel injection line in the usual manner. Make sure that the thumbscrew is hand tightened securely, but not over tightened. Run the engine and check the operation of the pickup.Make sure that the pickup and line are clean and dry. If the pickup is working correctly, use a can of spray paint to thoroughly paint the pickup from all directions. Several coats should be applied. Let the paint dry thoroughly before operating the engine.Checking the Operation of the Amplifier and Pickup
(1) 6V2100 Multitach. (2) 5P9698 Calibrator. (3) 5P7366 Power Cable. (4) Digital Multimeter. (5) Screwdriver. (6) 6V6152 Adapter. Screwdriver (5) should have a blade approximately 150 mm (6 in) long with 6 mm (.25 in) diameter shaft of round bare metal (not anodized or insulated).The 6V6152 Adapter (6) is a phono plug-to-BNC connector. Modifications must be made to the 5P9698 Calibrator (2). Refer to Special Instruction, SMHS7504-01.Checking the 4C6812 Amplifier
(1) 6V6152 Adapter Plug. (2) 5P9698 Calibrator. (3) 4C6812 Amplifier. (4) Connector. (5) 5P7366 Power Cable. (6) Knob. (7) Battery Indicator. (8) No Input Signal Light.1. Install 6V6152 Adapter Plug (1) on the end of the output cable on 5P9698 Calibrator (2). Plug the adapter into 4C6812 Amplifier (3).2. Check the operation of the multitach being used by performing the CHECKING PHOTO OPERATION test procedure contained in Special Instruction SEHS7807. (This is to ensure it is operating correctly on PHOTO operation.)3. Plug connector (4), on the end of the amplifier output cable, into the PH (photo) connector on the multitach. Attach 5P7366 Power Cable (5) to the multitach and to a suitable power source. Refer to SEHS7807.4. Program the multitach for .5 P/REV and to read R/MIN on the PH (photo) input. Turn knob (6) on
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Komatsu
Komatsu
Komatsu
104761-4131
INJECTION-PUMP ASSEMBLY