Information injection-pump assembly
ZEXEL
107691-0180
1076910180

Rating:
Cross reference number
ZEXEL
107691-0180
1076910180
Zexel num
Bosch num
Firm num
Name
107691-0180
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
134424-4120
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
RED4 control unit part number
407915-0
590
RED4 rack sensor specifications
mm
19
PS/ACT control unit part no.
407980-2
24*
Digi switch no.
14
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
1-4-2-6-
3-5
Pre-stroke
mm
5.1
5.07
5.13
Beginning of injection position
Drive side NO.1
Drive side NO.1
Difference between angles 1
Cal 1-4 deg. 60 59.75 60.25
Cal 1-4 deg. 60 59.75 60.25
Difference between angles 2
Cyl.1-2 deg. 120 119.75 120.25
Cyl.1-2 deg. 120 119.75 120.25
Difference between angles 3
Cal 1-6 deg. 180 179.75 180.25
Cal 1-6 deg. 180 179.75 180.25
Difference between angles 4
Cal 1-3 deg. 240 239.75 240.25
Cal 1-3 deg. 240 239.75 240.25
Difference between angles 5
Cal 1-5 deg. 300 299.75 300.25
Cal 1-5 deg. 300 299.75 300.25
Injection quantity adjustment
Rack position
(11.3)
PWM
%
51.5
Pump speed
r/min
700
700
700
Average injection quantity
mm3/st.
108
107
109
Max. variation between cylinders
%
0
-4
4
Basic
*
PS407980-224*
V
2.25+-0.
01
PS407980-224*
mm
3.1+-0.0
5
Injection quantity adjustment_02
Rack position
(6.7)
PWM
%
25.6+-2.
8
Pump speed
r/min
445
445
445
Average injection quantity
mm3/st.
11
9.2
12.8
Max. variation between cylinders
%
0
-10
10
PS407980-224*
V
V1+0.05+
-0.01
PS407980-224*
mm
5+-0.03
Remarks
Refer to items regarding the pre-stroke actuator
Refer to items regarding the pre-stroke actuator
Governor adjustment
Pump speed
r/min
1150--
Advance angle
deg.
0
0
0
Remarks
Start
Start
Governor adjustment_02
Pump speed
r/min
1100
Advance angle
deg.
0.3
Governor adjustment_03
Pump speed
r/min
1300
Advance angle
deg.
4
3.7
4.3
Remarks
Finish
Finish
0000001201
CU407980-224*
*
Actuator retarding type
*
Supply voltage
V
24
23.5
24.5
Ambient temperature
degC
23
18
28
Pre-stroke
mm
2
1.95
2.05
Output voltage
V
2.83
2.82
2.84
Adjustment
*
_02
CU407980-224*
*
Supply voltage
V
24
23.5
24.5
Ambient temperature
degC
23
18
28
Pre-stroke
mm
5.1
5.07
5.13
Output voltage
V
1.2
1
1.4
Confirmation
*
Remarks
Output voltage V1
Output voltage V1
_03
CU407980-224*
*
Supply voltage
V
24
23.5
24.5
Ambient temperature
degC
23
18
28
Output voltage
V
3.05
3.05
Confirmation of operating range
*
Test data Ex:
Speed control lever angle

N:Pump normal
S:Stop the pump.
(1)Rack position = aa
(2)Rack position bb
----------
aa=20mm bb=1mm
----------
a=27deg+-5deg b=37deg+-5deg
----------
aa=20mm bb=1mm
----------
a=27deg+-5deg b=37deg+-5deg
0000000901

(1)Pump vertical direction
(2)Coupling's key groove position at No 1 cylinder's beginning of injection
(3)Pre-stroke: aa
(4)-
----------
aa=5.1+-0.03mm
----------
a=(20deg)
----------
aa=5.1+-0.03mm
----------
a=(20deg)
Stop lever angle

(1)Pointer
(2)Injection timing aligning mark
(3)Fly weight
(4)The actual shape and direction may be different from this illustration.
Operation sequence
1. Turn the prestroke actuator OFF.
2. Turn the camshaft as far as the No.1 cylinder's beginning of injection position.
3. Check that the pointer alignment mark of the injection pump and the alignment mark of the flywheel are matching.
4. If they are not matching, erase the alignment mark on the flywheel side, and stamp an alignment mark on the flywheel position that matches with the pointer side alignment mark.
5. Check again that the coupling's key groove position is in the No.1 cylinder's beginning of injection position.
----------
----------
----------
----------
0000001301

A : Stopper pin
B: Connector
----------
----------
----------
----------
0000001401

C:Shim
----------
----------
----------
----------
0000001501

A:Sealing position
B:Pre-stroke actuator
1. When installing the pre-stroke actuator on the pump, first tighten the installation bolts loosely, then move the actuator fully counterclockwise (viewed from the drive side).
Temporary tightening torque: 1 - 1.5 N.m (0.1 - 0.15 kgf.m)
2. Move the actuator in the clockwise direction when viewed from the drive side, and adjust so that it becomes the adjustment point of the adjustment value. Then tighten it.
Tightening torque: 7^9 N.m (0.7^0.9 kgf.m)
3. After prestroke actuator installation adjustment, simultaneously stamp both the actuator side and housing side.
----------
----------
----------
----------
0000001701

(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:
This Program must be administered either before or after failure.In either case the decision whether to apply the Program is made by the dealer. When reporting the repair, use "PS42405" as the Part Numberand "7755" as the Group Number. If administered before failure, use "56" as the Warranty Claim Description Code and "T" as the SIMS Description code.If administered after failure, use "96" as the Warranty Claim Description Code, and "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
31May2009
PROBLEM
The 207-5248 Injector Rock Arms used in some C18 Marine Engine applications have been found to crack and break through the adjusting screw threads at the nose of the arm.
AFFECTED PRODUCT
Model Identification Number
C18 CKH00359, 426, 741, 744-745, 748-749, 1542-1543, 1594, 1641-1642, 1763-1764, 1805, 2053
PARTS NEEDED
Qty
Part Number Description
6 10R4704 ARM AS-UI ROCKER
ACTION REQUIRED
Refer to attached Rework Procedure.
SERVICE CLAIM ALLOWANCES
Product smu/age whichever comes first Caterpillar Dealer Suggested Customer Suggested
Parts % Labor Hrs% Parts % Labor Hrs% Parts % Labor Hrs%
0-2000 hrs,
0-24 mo 100.0% 100.0% 0.0% 0.0% 0.0% 0.0%
This is a 4.0-hour job
PARTS DISPOSITION
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.
Rework Procedure
For the following units listed remove (6) 207-5248 Injector Rocker Arms, and replace with (6) 10R4704 Injector Rocker Arms.
For proper Disassembly & Assembly instructions of the injector rocker arms please refer to the following Publications in SIS Web. (SENR9832 Testing & Adjusting - Finding Top Dead Center Position for No. 1 Piston), (SENR9832 Testing & Adjusting - Electronic Unit Injector Adjusting & Setting), and (SENR9832 Testing & Adjusting - Engine Valve Lash Inspect/Adjust).
Note: It is important that while installing the 10R4704 Injector Rocker Arms, that the engine is in the proper position (Top Dead Center and 180 degrees out) so the Injector Rocker Arms are properly adjusted and set. It is also important that during the installation of the Injector Rocker Arms that the Exhaust Valve, and Intake Valve lash settings be inspected and if needed reset to factory specifications.
Note: During the rework process please inspect the 6I-0901 Rocker Arm Shafts for any signs of misalignment of the stud mounting holes, wear, damage, fretting etc. If damage is found to the shaft or if fretting or damage is found with any of the through bolt/stud mounting holes, the shaft is to be replaced, and reported against this service letter as contingent damage.
Have questions with 107691-0180?
Group cross 107691-0180 ZEXEL
107691-0180
INJECTION-PUMP ASSEMBLY