Information injection-pump assembly
BOSCH
9 400 612 045
9400612045
ZEXEL
106676-2520
1066762520
Rating:
Service parts 106676-2520 INJECTION-PUMP ASSEMBLY:
1.
_
7.
COUPLING PLATE
8.
_
9.
_
11.
Nozzle and Holder
ME440089
12.
Open Pre:MPa(Kqf/cm2)
15.7{160}/21.6{220}
14.
NOZZLE
Include in #1:
106676-2520
as INJECTION-PUMP ASSEMBLY
Cross reference number
BOSCH
9 400 612 045
9400612045
ZEXEL
106676-2520
1066762520
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
131425-0220
Overflow valve opening pressure
kPa
157
123
191
Overflow valve opening pressure
kgf/cm2
1.6
1.25
1.95
Tester oil delivery pressure
kPa
157
157
157
Tester oil delivery pressure
kgf/cm2
1.6
1.6
1.6
RED4 control unit part number
407915-0
590
RED4 rack sensor specifications
mm
19
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
1-5-3-6-
2-4
Pre-stroke
mm
3.9
3.85
3.95
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
Rack position
(13.4)
PWM
%
63.5
Pump speed
r/min
700
700
700
Average injection quantity
mm3/st.
178
175
181
Max. variation between cylinders
%
0
-2.5
2.5
Basic
*
Injection quantity adjustment_02
Rack position
(7.3)
PWM
%
29+-2.8
Pump speed
r/min
225
225
225
Average injection quantity
mm3/st.
8.5
7
10
Max. variation between cylinders
%
0
-15
15
Test data Ex:
Governor 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=1.5-0.2mm N2=800r/min C2=(10)deg t1=2.5--sec. t2=2.5--sec.
----------
N1=750++r/min P1=0kPa(0kgf/cm2) P2=392kPa(4kgf/cm2) C1=10+-0.3deg R01=0/4load R02=4/4load
----------
L=1.5-0.2mm N2=800r/min C2=(10)deg t1=2.5--sec. t2=2.5--sec.
----------
N1=750++r/min P1=0kPa(0kgf/cm2) P2=392kPa(4kgf/cm2) C1=10+-0.3deg R01=0/4load R02=4/4load
Speed control lever angle
N:Pump normal
S:Stop the pump.
(1)Rack position = aa
(2)Rack position bb
----------
aa=1mm bb=20mm
----------
a=2deg+-5deg b=37deg+-5deg
----------
aa=1mm bb=20mm
----------
a=2deg+-5deg b=37deg+-5deg
0000000901
(1)Pump vertical direction
(2)Coupling's key groove position at No 1 cylinder's beginning of injection
(3)B.T.D.C.: aa
(4)-
----------
aa=10deg
----------
a=(5deg)
----------
aa=10deg
----------
a=(5deg)
Stop lever angle
(PWM) Pulse width modulation (%)
(R) Rack position (mm)
Rack sensor output characteristics
1. Rack limit adjustment
(1)Measure the rack position R2 for PWM a2%.
(2)Confirm that it is within the range R2 = 15+-1 mm.
(3)Measure the rack position R1 at PWM a %.
(4)Confirm that it is within the range R2 - R1 = 10+-0.1 mm.
2. Check the limp home operation.
(1)Move the switch box's limp home switch to the limp home side.
(2)Confirm rack position L1 (mm ) and L2 (mm) for PWM in the above table.
3. Check the pull down operation.
(1)Confirm that the rack position is 19 mm at PWM B%.
(2)In the conditions described in the above table, move the switch box's pull down switch to the pull down side and confirm that the rack position momentarily becomes 1 mm or less.
----------
a1=16.25% a2=72.5% L1=1--mm L2=19++mm A=5 % B=95%
----------
----------
a1=16.25% a2=72.5% L1=1--mm L2=19++mm A=5 % B=95%
----------
Information:
PROBLEM
The fuel inlet check valves, on the fuel injection pump, may fail on certain C6.6 Industrial Engines that are installed in specific OEM Applications. A failure of the inlet check valves could result in any of the following symptoms: failure to start, prevention of the engine from achieving full power, or a de-rate of the engine.
Before any repair is carried out, ensure the appropriate trouble shooting steps have been followed and carried out.
AFFECTED PRODUCT
Model Identification Number
C6.6 TIER 3 66605372, 5675-5678, 5680-5683, 5685-5686, 5688-5695, 5697-5699, 5701-5703, 5718, 5720, 5722-5723, 5726, 5728-5729, 5733, 5735-5737, 5739, 5741-5749, 5751-5754, 5756, 5758-5771, 6007-6008, 6010, 6012-6013, 6015, 6018, 6020-6021, 6024, 6438, 7207-7209, 7211-7215, 7222-7225, 7227-7231, 7235, 7237-7239, 7268-7271, 7273-7275, 7277, 7280-7281, 7284-7287, 7428, 9732, 9747, 9749-9751, 9753-9754, 9756-9760, 9765, 9790-9791, 9794-9800, 9804-9807, 9809, 9823-9826, 9828, 9830-9837, 9839, 9842, 9877, 9879-9884, 9886-9891, 9893-9894, 9897-9898, 9901-9902, 9931, 9933-9937, 9940-9943, 9945, 9947, 9950, 9952-9954, 9959-9960, 10000, 10003, 10005, 10009-10010, 10012-10013, 10015-10016, 10018-10023, 10116, 10119-10125, 10129, 10131-10133, 10135-10136, 10138-10141, 10144-10145, 10147-10149
PARTS NEEDED
Qty
Part Number Description
1 1113423 WASHER
1 2258019 GASKET-PUMP-HSG
6 2323149 WASHER-SEALING
1 2782285 ELBOW
1 2784138 PROTECTION KT
1 3368180 TUBE FUEL-INJ
1 3495736 PUMP GP-FUEL
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 1% 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 existing fuel injection pump group with a new 349-5736 fuel injection pump group.
Refer to appropriate service manuals as necessary.
Rework Procedure:
1. Remove machine parts as necessary to gain sufficient access to the engine.
2. Remove existing fuel injection pump and replace it with a new 349-5736 fuel injection pump group. Refer to the Disassembly & Assembly Instruction RENR9722 Fuel Injection Pump - Remove and Install. If a compression fitting is used to connect the pipe from the filter to the pump a new nut and olive will be required. This is part of the elbow assembly 278-2285, remove one of the nuts and olives from the elbow and use this to reconnect the pipe to the new pump, the rest of the elbow can be discarded.
3. Ensure that all the warnings and notices are adhered to and safety practices are followed. Ensure that the protection caps are used during this operation to prevent issues with contamination.
4. Install all parts that were removed to gain access to the engine.
5. Check for leaks and repair as necessary.
SERVICE CLAIM ALLOWANCES
Product smu/age whichever comes first Caterpillar Dealer Suggested Customer Suggested
Parts % Labor Hrs% Parts % Labor Hrs% Parts % Labor Hrs%
0-3000 hrs,
0-36 mo 100.0% 100.0% 0.0% 0.0% 0.0% 0.0%
This is a 8.0-hour job
PARTS DISPOSITION
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.