Information injection-pump assembly
ZEXEL
101472-3630
1014723630
KOMATSU
6144751103
6144751103

Rating:
Cross reference number
ZEXEL
101472-3630
1014723630
KOMATSU
6144751103
6144751103
Zexel num
Bosch num
Firm num
Name
101472-3630
6144751103 KOMATSU
INJECTION-PUMP ASSEMBLY
4D94 *
4D94 *
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
12
Pump speed
r/min
700
700
700
Average injection quantity
mm3/st.
47.3
46.3
48.3
Max. variation between cylinders
%
0
-2
2
Basic
*
Fixing the lever
*
Injection quantity adjustment_02
Adjusting point
B
Rack position
9+-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=5 R1=18+1mm L1=7-0.5mm
----------
----------
K=5 R1=18+1mm L1=7-0.5mm
----------
Speed control lever angle

F:Full speed
S:Stop
(1)Speed set at aa (setting at shipping)
(2)Set the pump speed at bb.
----------
aa=900r/min bb=750r/min
----------
a=10deg+-5deg b=13deg+-5deg c=32deg+-3deg
----------
aa=900r/min bb=750r/min
----------
a=10deg+-5deg b=13deg+-5deg c=32deg+-3deg
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
Information:
Illustration 1 g06545921
Typical view inside the DEF pump
(1) Internal heater blanket
Illustration 2 g06545997
Typical view of the DEF pump heater blanket
(2) Pump head heater (top)
(3) Positioning blocksAdaptable To:
Do not operate or work on this product unless you have read and understood the instruction and warnings in the relevant Operation and Maintenance Manuals and relevant service literature. Failure to follow the instructions or heed the warnings could result in injury or death. Proper care is your responsibility.
Illustration 3 g06546003
Typical view of the DEF pump identification label
(4) Part number
(5) Serial number
(6) Date code
Table 1
Part Number Description Serial Number Date Code
466-8285 Diesel Exhaust Fluid Pump Gp (12 V) 19357001 19D357
533-2738 Diesel Exhaust Fluid Pump Gp (24 V) 20058030 20D058 Refer to Table 1 for the effective serial number and date code of the improved heater blanket. Refer to Illustration 3 for the location of the DEF pump identification label.
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Group cross 101472-3630 ZEXEL
Komatsu
101472-3630
6144751103
INJECTION-PUMP ASSEMBLY
4D94
4D94