Information injection-pump assembly
ZEXEL
101603-7410
1016037410
ISUZU
8943962110
8943962110
Rating:
Cross reference number
ZEXEL
101603-7410
1016037410
ISUZU
8943962110
8943962110
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
105780-8210
Nozzle
105780-0070
Bosch type code
DN12SD12T-1
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
Overflow valve
131424-4920
Overflow valve opening pressure
kPa
127
107
147
Overflow valve opening pressure
kgf/cm2
1.3
1.1
1.5
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)
Left L
Left L
Injection timing adjustment
Direction of rotation (viewed from drive side)
Left L
Left L
Injection order
1-5-3-6-
2-4
Pre-stroke
mm
4.2
4.15
4.25
Rack position
After adjusting injection quantity. R=A
After adjusting injection quantity. R=A
Beginning of injection position
Governor side NO.1
Governor side NO.1
Difference between angles 1
Cal 1-5 deg. 60 59.5 60.5
Cal 1-5 deg. 60 59.5 60.5
Difference between angles 2
Cal 1-3 deg. 120 119.5 120.5
Cal 1-3 deg. 120 119.5 120.5
Difference between angles 3
Cal 1-6 deg. 180 179.5 180.5
Cal 1-6 deg. 180 179.5 180.5
Difference between angles 4
Cyl.1-2 deg. 240 239.5 240.5
Cyl.1-2 deg. 240 239.5 240.5
Difference between angles 5
Cal 1-4 deg. 300 299.5 300.5
Cal 1-4 deg. 300 299.5 300.5
Injection quantity adjustment
Adjusting point
-
Rack position
11.2
Pump speed
r/min
900
900
900
Average injection quantity
mm3/st.
73.5
71.9
75.1
Max. variation between cylinders
%
0
-2.5
2.5
Basic
*
Fixing the rack
*
Standard for adjustment of the maximum variation between cylinders
*
Injection quantity adjustment_02
Adjusting point
H
Rack position
9.5+-0.5
Pump speed
r/min
260
260
260
Average injection quantity
mm3/st.
8.3
7
9.6
Max. variation between cylinders
%
0
-14
14
Fixing the rack
*
Standard for adjustment of the maximum variation between cylinders
*
Injection quantity adjustment_03
Adjusting point
A
Rack position
R1(11.2)
Pump speed
r/min
900
900
900
Average injection quantity
mm3/st.
73.5
72.5
74.5
Basic
*
Fixing the lever
*
Injection quantity adjustment_04
Adjusting point
B
Rack position
R1-0.1
Pump speed
r/min
1500
1500
1500
Average injection quantity
mm3/st.
84.6
80.6
88.6
Fixing the lever
*
Injection quantity adjustment_05
Adjusting point
C
Rack position
R1-0.3
Pump speed
r/min
600
600
600
Average injection quantity
mm3/st.
55.3
52.1
58.5
Fixing the lever
*
Injection quantity adjustment_06
Adjusting point
I
Rack position
-
Pump speed
r/min
150
150
150
Average injection quantity
mm3/st.
103
103
135
Fixing the lever
*
Timer adjustment
Pump speed
r/min
1210--
Advance angle
deg.
0
0
0
Load
3/4
Remarks
Start
Start
Timer adjustment_02
Pump speed
r/min
1160
Advance angle
deg.
0.3
Load
3/4
Timer adjustment_03
Pump speed
r/min
1500
Advance angle
deg.
5.5
5
6
Load
4/4
Remarks
Finish
Finish
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.
----------
T1=E76
----------
----------
T1=E76
----------
Speed control lever angle
F:Full speed
I:Idle
(1)Use the pin at R = aa
(2)Stopper bolt set position 'H'
----------
aa=35mm
----------
a=11deg+-5deg b=(38deg)+-3deg
----------
aa=35mm
----------
a=11deg+-5deg b=(38deg)+-3deg
Stop lever angle
N:Pump normal
S:Stop the pump.
----------
----------
a=12.5deg+-5deg b=40deg+-5deg
----------
----------
a=12.5deg+-5deg b=40deg+-5deg
0000001501 I/P WITH LOAD PLUNGER ADJ
Plunger assembly number: PL (stamping: ST)
1. Adjustment procedures
(1)Insert the pre-stroke adjusting shims L1 for each cylinder.
(2)Adjust injection quantity.(max. var. bet. cyl. idling a1, full a2)
(3)At basic point A, adjust so that the pre-stroke is L2.
(4)Reconfirm the injection quantity.
----------
PL=131153-4520 ST=A724 L1=1mm L2=4.2+-0.05mm a1=+-14% a2=+-2.5%
----------
----------
PL=131153-4520 ST=A724 L1=1mm L2=4.2+-0.05mm a1=+-14% a2=+-2.5%
----------
Timing setting
(1)Pump vertical direction
(2)Position of timer's threaded hole at No 1 cylinder's beginning of injection
(3)B.T.D.C.: aa
(4)-
----------
aa=10deg
----------
a=(150deg)
----------
aa=10deg
----------
a=(150deg)
Information:
This Program can only be administered after a failure occurs.The decision whether to apply the Program is made by the dealer. When reporting the repair, use "PS52035" as the Part Numberand "7755" as the Group Number. Use "96" as the Warranty Claim Description Code and use "Z" as the SIMS Description Code.
The information supplied in this service letter may not be valid after the termination date of this program.Do not perform the work outlined in this Service Letter after the termination date without first contacting your Caterpillar product analyst.
TERMINATION DATE
30Jun2013
PROBLEM
The existing 162-9612 Fuel Transfer Pump Group that is part of the 162-9608 Unit Injector Hydraulic Pump Group can fail on certain 3126B Gen Set Engines. The failure has been associated to undersized splines inside of the fuel transfer pump. This may cause an accelerated wear to the splines of the fuel transfer pump and the unit injector hydraulic pump.
AFFECTED PRODUCT
Model Identification Number
3126B BDZ00012-00013, 24-38, 49-105, 107-350, 357-364, 369-631, 650-972, 981-986, 994-1027, 1029-1288, 1290-1471, 1487-1497, 1559-2522
PARTS NEEDED
Qty
Part Number Description
1 20R0122 PUMP GP-INJECTOR
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 3% of dealership population. This is an initial order recommendation only, and the ultimate responsibility for ordering the total number of parts needed to satisfy the program lies with the dealer.
ACTION REQUIRED
Replace the failed 162-9608 Unit Injector Hydraulic Pump Group with a 20R-0122 Unit Injector Hydraulic Pump Group.
Note: Refer to Image1 to determine that the correct part is being installed. The correct fuel transfer pumps will have an "H" stamped in the part.
Refer to SENR9589, Disassembly and Assembly for instructions on the removal and installation of the unit injector hydraulic pump.
Image1
SERVICE CLAIM ALLOWANCES
Product smu/age whichever comes first Caterpillar Dealer Suggested Customer Suggested
Parts % Labor Hrs% Parts % Labor Hrs% Parts % Labor Hrs%
0-12000 hrs,
0-72 mo 100.0% 100.0% 0.0% 0.0% 0.0% 0.0%
This is a 2.0-hour job
PARTS DISPOSITION
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.