Information injection-pump assembly
ZEXEL
106871-1124
1068711124

Rating:
Service parts 106871-1124 INJECTION-PUMP ASSEMBLY:
1.
_
6.
COUPLING PLATE
7.
COUPLING PLATE
8.
_
9.
_
11.
Nozzle and Holder
1-15300-328-0
12.
Open Pre:MPa(Kqf/cm2)
15.7{160}/22.1{225}
15.
NOZZLE SET
Include in #1:
106871-1124
as INJECTION-PUMP ASSEMBLY
Cross reference number
ZEXEL
106871-1124
1068711124
Zexel num
Bosch num
Firm num
Name
106871-1124
INJECTION-PUMP ASSEMBLY
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
105780-8250
Bosch type code
1 688 901 101
Nozzle
105780-0120
Bosch type code
1 688 901 990
Nozzle holder
105780-2190
Opening pressure
MPa
20.7
Opening pressure
kgf/cm2
211
Injection pipe
Outer diameter - inner diameter - length (mm) mm 8-3-600
Outer diameter - inner diameter - length (mm) mm 8-3-600
Overflow valve
134424-4320
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
255
255
255
Tester oil delivery pressure
kgf/cm2
2.6
2.6
2.6
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
1-8-7-3-
6-5-4-2
Pre-stroke
mm
5.5
5.47
5.53
Rack position
Point A R=A
Point A R=A
Beginning of injection position
Governor side NO.1
Governor side NO.1
Difference between angles 1
Cal 1-8 deg. 45 44.75 45.25
Cal 1-8 deg. 45 44.75 45.25
Difference between angles 2
Cal 1-7 deg. 90 89.75 90.25
Cal 1-7 deg. 90 89.75 90.25
Difference between angles 3
Cal 1-3 deg. 135 134.75 135.25
Cal 1-3 deg. 135 134.75 135.25
Difference between angles 4
Cal 1-6 deg. 180 179.75 180.25
Cal 1-6 deg. 180 179.75 180.25
Difference between angles 5
Cal 1-5 deg. 225 224.75 225.25
Cal 1-5 deg. 225 224.75 225.25
Difference between angles 6
Cal 1-4 deg. 270 269.75 270.25
Cal 1-4 deg. 270 269.75 270.25
Difference between angles 7
Cyl.1-2 deg. 315 314.75 315.25
Cyl.1-2 deg. 315 314.75 315.25
Injection quantity adjustment
Adjusting point
-
Rack position
10.3
Pump speed
r/min
700
700
700
Average injection quantity
mm3/st.
109
107.5
110.5
Max. variation between cylinders
%
0
-3
3
Basic
*
Fixing the rack
*
Standard for adjustment of the maximum variation between cylinders
*
Injection quantity adjustment_02
Adjusting point
Z
Rack position
6.5+-0.5
Pump speed
r/min
420
420
420
Average injection quantity
mm3/st.
13.5
11.5
15.5
Max. variation between cylinders
%
0
-13
13
Fixing the rack
*
Standard for adjustment of the maximum variation between cylinders
*
Injection quantity adjustment_03
Adjusting point
A
Rack position
R1(10.3)
Pump speed
r/min
700
700
700
Average injection quantity
mm3/st.
109
108
110
Basic
*
Fixing the lever
*
Injection quantity adjustment_04
Adjusting point
B
Rack position
R1+1.2
Pump speed
r/min
1150
1150
1150
Average injection quantity
mm3/st.
115
111
119
Fixing the lever
*
Test data Ex:
Governor adjustment

N:Pump speed
R:Rack position (mm)
(1)Torque cam stamping: T1
(2)Tolerance for racks not indicated: +-0.05mm.
(3)Damper spring setting
----------
T1=AD64
----------
----------
T1=AD64
----------
Timer adjustment

(1)Adjusting range
(2)Step response time
(N): Speed of the pump
(L): Load
(theta) Advance angle
(Srd1) Step response time 1
(Srd2) Step response time 2
1. Adjusting conditions for the variable timer
(1)Adjust the clearance between the pickup and the protrusion to L.
----------
L=1-0.2mm N2=800r/min C2=(8)deg t1=1.5--sec. t2=1.5--sec.
----------
N1=950++r/min P1=0kPa(0kgf/cm2) P2=392kPa(4kgf/cm2) C1=8+-0.3deg R01=0/4load R02=4/4load
----------
L=1-0.2mm N2=800r/min C2=(8)deg t1=1.5--sec. t2=1.5--sec.
----------
N1=950++r/min P1=0kPa(0kgf/cm2) P2=392kPa(4kgf/cm2) C1=8+-0.3deg R01=0/4load R02=4/4load
Speed control lever angle

F:Full speed
I:Idle
(1)Use the pin at R = aa
(2)Stopper bolt setting
----------
aa=42.5mm
----------
a=22.5deg+-5deg b=(34.5deg)+-3deg
----------
aa=42.5mm
----------
a=22.5deg+-5deg b=(34.5deg)+-3deg
Stop lever angle

N:Pump normal
S:Stop the pump.
(1)Use the hole at R = aa
(2)Speed = bb, rack position = cc
(3)Set the stopper bolt (confirm non-injection).
----------
aa=37.5mm bb=0r/min cc=1.5+-0.3mm
----------
a=40deg+-5deg b=43deg+-5deg
----------
aa=37.5mm bb=0r/min cc=1.5+-0.3mm
----------
a=40deg+-5deg b=43deg+-5deg
0000001501 RACK SENSOR

Rack sensor adjustment
1. Flange type rack sensor (rack sensor adjustment -5*20)
(1)These types of rack sensors do not need adjustment. Confirm the performance with the following procedures.
(2)Mount the rack sensor main body to the pump main body.
(3)Fix the pump lever at full.
(4)At supply voltage V1, pump speed N1 and rack position Ra, confirm that the amp's output voltage is Vist.
(5)Move the pump lever two or three times.
(6)Set again to full.
(7)Confirm that the amplifier output voltage is Vist.
(8)Fix the caution plate to the upper part of the rack sensor.
(For those without the caution plate instructions, make sure the nameplate of the rack sensor carries the "Don't hold here" caution.)
(9)Apply red paint to the rack sensor mounting bolts (2 places).
----------
V1=5+-0.01V N1=1150r/min Ra=R1(10.3)+1.2mm Vist=1.65+-0.14V
----------
----------
V1=5+-0.01V N1=1150r/min Ra=R1(10.3)+1.2mm Vist=1.65+-0.14V
----------
Timing setting

(1)Pump vertical direction
(2)Position of "Z" mark at the No 1 cylinder's beginning of injection (governor side)
(3)B.T.D.C.: aa
(4)-
----------
aa=4deg
----------
a=(180deg)
----------
aa=4deg
----------
a=(180deg)
Information:
A maximum of $100 will be allowed for machining of cylinder head face to achieve required surface finish after failure.
Product smu/age whichever comes first Caterpillar Dealer Suggested Customer Suggested
Parts % Labor Hrs% Parts % Labor Hrs% Parts % Labor Hrs%
*******Group 2*******
0-3000 hrs,
0-48 mo 100.0% 100.0% 0.0% 0.0% 0.0% 0.0%
This is a 13.0-hour job for Group 2
A maximum of $100 will be allowed for machining of cylinder head face to achieve required surface finish after failure.
Product smu/age whichever comes first Caterpillar Dealer Suggested Customer Suggested
Parts % Labor Hrs% Parts % Labor Hrs% Parts % Labor Hrs%
*******Group 3*******
0-3000 hrs,
0-48 mo 100.0% 100.0% 0.0% 0.0% 0.0% 0.0%
This is a 13.0-hour job for Group 3
A maximum of $100 will be allowed for machining of cylinder head face to achieve required surface finish after failure.
PARTS DISPOSITION
****Parts Stock****
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.
****Affected Product****
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.
Rework Procedure
If the head gasket has failed follow the rework procedure for both head gasket replacement and for fuel injection pump replacement. Check that the fuel pump has not suffered a mechanical failure that has resulted in a head gasket failure, such as mechanical failure of the advance box due to air ingress. Head gasket failure due to mechanical failure of the fuel pump is not covered by this service letter.
Head gasket replacement:
Confirm the head gasket has failed through removal of the cylinder head and visual inspection of the gasket. Remove cylinder head ? refer to Disassembly and Assembly, "Cylinder Head - Remove". Confirm head gasket has failed through visual inspection, as per the images shown in Image 1.1.1.
Clean the cylinder head face and the cylinder block face to remove any deposits on the gasket sealing surface using an appropriate cleaner. Do not use abrasive materials to remove the deposits during the cleaning process to ensure that the correct surface flatness is maintained.
Inspect cylinder head for flatness and distortion. Refer to Image 1.1.2 for surface finish. Refer to System Operation Testing and Adjusting, "Cylinder Head ? Inspect" for more information. Resurface the cylinder head if required as per Testing and Adjusting, "Cylinder Head ? Inspect".
Inspect cylinder block for surface finish on the top deck of the cylinder block. Refer to Image 1.1.2 for surface finish. If the cylinder block is within specifications, install a new 258-4946 Cylinder Head Gasket. If the block is not within specification, refer to Reuse And Salvage Guidelines, SEBF8076, "Specifications to Salvage Contact Surfaces of Cylinder Blocks" for more information.
Note: A 369-3705 Cylinder Head Gasket may be required, depending on reuse and salvage guidelines.
Follow Disassembly and Assembly, "Cylinder Head ? Install" with a new gasket as per above information.
Fuel injection pump replacement:
Follow Disassembly and Assembly, "Fuel Injection Pump - Remove - Delphi DP210". Do not reuse the fuel pump. Record removed fuel pump serial number in claim story. The fuel pump serial number is in the format "12345ABC".
Install the new 483-2328 Fuel Pump as per Disassembly and Assembly, "Fuel Injection Pump -
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106871-1124
INJECTION-PUMP ASSEMBLY