Information injection-pump assembly
ZEXEL
106871-2870
1068712870

Rating:
Cross reference number
ZEXEL
106871-2870
1068712870
Zexel num
Bosch num
Firm num
Name
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 8-3-600
Outer diameter - inner diameter - length (mm) mm 8-3-600
Overflow valve
131424-4620
Overflow valve opening pressure
kPa
255
221
289
Overflow valve opening pressure
kgf/cm2
2.6
2.25
2.95
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
1-2-7-3-
4-5-6-8
Pre-stroke
mm
4.8
4.75
4.85
Beginning of injection position
Governor side NO.1
Governor side NO.1
Difference between angles 1
Cyl.1-2 deg. 45 44.5 45.5
Cyl.1-2 deg. 45 44.5 45.5
Difference between angles 2
Cal 1-7 deg. 90 89.5 90.5
Cal 1-7 deg. 90 89.5 90.5
Difference between angles 3
Cal 1-3 deg. 135 134.5 135.5
Cal 1-3 deg. 135 134.5 135.5
Difference between angles 4
Cal 1-4 deg. 180 179.5 180.5
Cal 1-4 deg. 180 179.5 180.5
Difference between angles 5
Cal 1-5 deg. 225 224.5 225.5
Cal 1-5 deg. 225 224.5 225.5
Difference between angles 6
Cal 1-6 deg. 270 269.5 270.5
Cal 1-6 deg. 270 269.5 270.5
Difference between angles 7
Cal 1-8 deg. 315 314.5 315.5
Cal 1-8 deg. 315 314.5 315.5
Injection quantity adjustment
Adjusting point
-
Rack position
11.4
Pump speed
r/min
700
700
700
Each cylinder's injection qty
mm3/st.
156
151
161
Basic
*
Fixing the rack
*
Standard for adjustment of the maximum variation between cylinders
*
Injection quantity adjustment_02
Adjusting point
C
Rack position
6.1+-0.5
Pump speed
r/min
225
225
225
Each cylinder's injection qty
mm3/st.
20
17
23
Fixing the rack
*
Standard for adjustment of the maximum variation between cylinders
*
Injection quantity adjustment_03
Adjusting point
A
Rack position
R1(11.4)
Pump speed
r/min
700
700
700
Average injection quantity
mm3/st.
156
155
157
Basic
*
Fixing the lever
*
Boost pressure
kPa
33.3
33.3
Boost pressure
mmHg
250
250
Injection quantity adjustment_04
Adjusting point
D
Rack position
-
Pump speed
r/min
100
100
100
Average injection quantity
mm3/st.
90
70
110
Fixing the lever
*
Boost pressure
kPa
0
0
0
Boost pressure
mmHg
0
0
0
Boost compensator adjustment
Pump speed
r/min
650
650
650
Rack position
(9.2)
Boost pressure
kPa
4
4
4
Boost pressure
mmHg
30
30
30
Boost compensator adjustment_02
Pump speed
r/min
650
650
650
Rack position
R1(11.4)
Boost pressure
kPa
20
20
20
Boost pressure
mmHg
150
150
150
Timer adjustment
Pump speed
r/min
750--
Advance angle
deg.
0
0
0
Remarks
Start
Start
Timer adjustment_02
Pump speed
r/min
700
Advance angle
deg.
0.5
Timer adjustment_03
Pump speed
r/min
1100
Advance angle
deg.
2.5
2
3
Remarks
Finish
Finish
Test data Ex:
Governor adjustment

N:Pump speed
R:Rack position (mm)
(1)Damper spring setting: DL
(2)Boost compensator cancel stroke: BSL
(3)Boost compensator stroke
----------
DL=4.3-0.2mm BSL=2.6mm
----------
----------
DL=4.3-0.2mm BSL=2.6mm
----------
Speed control lever angle

F:Full speed
----------
----------
a=14deg+-5deg
----------
----------
a=14deg+-5deg
0000000901

F:Full load
I:Idle
(1)Stopper bolt setting
----------
----------
a=10deg+-5deg b=31deg+-3deg
----------
----------
a=10deg+-5deg b=31deg+-3deg
Stop lever angle

N:Engine manufacturer's normal use
S:Stop the pump.
(1)Stopper bolt setting
(2)Rack position = aa
(3)Rack position bb
(4)Free (at shipping)
----------
aa=4-0.5mm bb=14.6mm
----------
a=43deg+7deg-5deg b=30deg+-5deg c=(10.5deg)
----------
aa=4-0.5mm bb=14.6mm
----------
a=43deg+7deg-5deg b=30deg+-5deg c=(10.5deg)
0000001501 MICRO SWITCH
Adjustment of the micro-switch
Adjust the bolt to obtain the following lever position when the micro-switch is ON.
(1)Speed N1
(2)Rack position Ra
----------
N1=325+-5r/min Ra=5.6mm
----------
----------
N1=325+-5r/min Ra=5.6mm
----------
Timing setting

(1)Pump vertical direction
(2)Coupling's key groove position at No 1 cylinder's beginning of injection
(3)-
(4)-
----------
----------
a=(40deg)
----------
----------
a=(40deg)
Information:
Introduction
Injector height setting is extremely important during the engine assembly process. The recommended intervals that are specified in the Operation and Maintenance Manual must be followed.Problem
An issue has been identified with the correct injector height settings. Check the injector height. Bottoming of the fuel injector rocker arm may be caused by the injector height being to high or low. Bottoming of the fuel injector can create a crack at the nose of the fuel injector rocker arm through the first and second threads of the adjusting screw hole. Once the crack has started it can result in the breaking of the fuel injector rocker arm at the nose. Breaking of the fuel injector rocker arm will result in an immediate poor engine performance.Solution
Performing the recommended inspection of the fuel injector rocker arm at the specified intervals in the operation and maintenance manual is important. Inspect the height
Injector height setting is extremely important during the engine assembly process. The recommended intervals that are specified in the Operation and Maintenance Manual must be followed.Problem
An issue has been identified with the correct injector height settings. Check the injector height. Bottoming of the fuel injector rocker arm may be caused by the injector height being to high or low. Bottoming of the fuel injector can create a crack at the nose of the fuel injector rocker arm through the first and second threads of the adjusting screw hole. Once the crack has started it can result in the breaking of the fuel injector rocker arm at the nose. Breaking of the fuel injector rocker arm will result in an immediate poor engine performance.Solution
Performing the recommended inspection of the fuel injector rocker arm at the specified intervals in the operation and maintenance manual is important. Inspect the height