Information injection-pump assembly
ZEXEL
108822-2790
1088222790
Rating:
Service parts 108822-2790 INJECTION-PUMP ASSEMBLY:
1.
_
5.
AUTOM. ADVANCE MECHANIS
7.
COUPLING PLATE
11.
Nozzle and Holder
ME093732
12.
Open Pre:MPa(Kqf/cm2)
17.7{180}/21.6{220}
14.
NOZZLE
Include in #1:
108822-2790
as INJECTION-PUMP ASSEMBLY
Cross reference number
ZEXEL
108822-2790
1088222790
Zexel num
Bosch num
Firm num
Name
108822-2790
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
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
255
255
255
Tester oil delivery pressure
kgf/cm2
2.6
2.6
2.6
PS/ACT control unit part no.
407980-2
24*
Digi switch no.
42
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
8.5
8.47
8.53
Beginning of injection position
Governor side NO.1
Governor side NO.1
Difference between angles 1
Cyl.1-2 deg. 45 44.75 45.25
Cyl.1-2 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 1-4 deg. 180 179.75 180.25
Cal 1-4 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 1-6 deg. 270 269.75 270.25
Cal 1-6 deg. 270 269.75 270.25
Difference between angles 7
Cal 1-8 deg. 315 314.75 315.25
Cal 1-8 deg. 315 314.75 315.25
Injection quantity adjustment
Adjusting point
-
Rack position
13.3
Pump speed
r/min
650
650
650
Average injection quantity
mm3/st.
136.5
134.9
138.1
Max. variation between cylinders
%
0
-3
3
Basic
*
Fixing the rack
*
PS407980-224*
V
2.45+-0.
01
PS407980-224*
mm
6.1+-0.0
5
Standard for adjustment of the maximum variation between cylinders
*
Injection quantity adjustment_02
Adjusting point
Z
Rack position
8.7+-0.5
Pump speed
r/min
345
345
345
Average injection quantity
mm3/st.
23.5
20.9
26.1
Max. variation between cylinders
%
0
-15
15
Fixing the rack
*
PS407980-224*
V
V1+0.05+
-0.01
PS407980-224*
mm
8.4+-0.0
3
Standard for adjustment of the maximum variation between cylinders
*
Remarks
Refer to items regarding the pre-stroke actuator
Refer to items regarding the pre-stroke actuator
Injection quantity adjustment_03
Adjusting point
A
Rack position
R1(13.3)
Pump speed
r/min
650
650
650
Average injection quantity
mm3/st.
136.5
135.5
137.5
Basic
*
Fixing the lever
*
PS407980-224*
V
2.45+-0.
01
PS407980-224*
mm
6.1+-0.0
5
Injection quantity adjustment_04
Adjusting point
B
Rack position
R1+1.35
Pump speed
r/min
1100
1100
1100
Average injection quantity
mm3/st.
136.5
132.5
140.5
Fixing the lever
*
PS407980-224*
V
2.45+-0.
01
PS407980-224*
mm
6.1+-0.0
5
Injection quantity adjustment_05
Adjusting point
C
Rack position
(R1-0.7)
Pump speed
r/min
500
500
500
Average injection quantity
mm3/st.
132.5
128.5
136.5
Fixing the lever
*
PS407980-224*
V
2.45+-0.
01
PS407980-224*
mm
6.1+-0.0
5
0000001601
Pre-stroke
mm
8.5
8.47
8.53
Remarks
When the timing sleeve is pushed up
When the timing sleeve is pushed up
_02
Connector angle
deg.
8.5
8
9
Remarks
When the eccentric pin is tightened
When the eccentric pin is tightened
_03
Supply voltage
V
24
23.5
24.5
Ambient temperature
degC
23
22.5
23.5
Pre-stroke
mm
6.1
6.05
6.15
Output voltage
V
2.45
2.44
2.46
Adjustment
*
_04
Supply voltage
V
24
23.5
24.5
Ambient temperature
degC
23
22.5
23.5
Pre-stroke
mm
8.5
8.47
8.53
Output voltage
V
1.2
1
1.4
Confirmation
*
Remarks
Output voltage V1
Output voltage V1
_05
Supply voltage
V
24
23.5
24.5
Ambient temperature
degC
23
22.5
23.5
Pre-stroke
mm
5.5
Output voltage
V
3
2.98
3
Confirmation
*
_06
Supply voltage
V
24
23.5
24.5
Ambient temperature
degC
23
22.5
23.5
Output voltage
V
3.05
3.05
Confirmation of operating range
*
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=AF44
----------
----------
T1=AF44
----------
Speed control lever angle
F:Full speed
I:Idle
(1)Use the hole at R = aa
(2)Stopper bolt set position 'H'
(3)Viewed from feed pump side.
----------
aa=37.5mm
----------
a=34deg+-5deg b=(42deg)+-3deg
----------
aa=37.5mm
----------
a=34deg+-5deg b=(42deg)+-3deg
Stop lever angle
N:Pump normal
S:Stop the pump.
(1)Use the hole at R = aa
(2)Set the stopper bolt so that speed = bb and rack position = cc. (Confirm non-injection.)
(3)Normal engine position (Rack position corresponding to dd)
----------
aa=54mm bb=1100r/min cc=3.5+-0.3mm dd=18mm
----------
a=41deg+-5deg b=5.5deg+-5deg c=(31deg)
----------
aa=54mm bb=1100r/min cc=3.5+-0.3mm dd=18mm
----------
a=41deg+-5deg b=5.5deg+-5deg c=(31deg)
0000001301
(1)Pump vertical direction
(2)Coupling's key groove position at No 1 cylinder's beginning of injection
(3)At the No 1 cylinder's beginning of injection position, stamp an aligning mark on the damper to align with the pointer's groove.
(4)Damper
(5)Pointer
(6)B.T.D.C.: aa
(7)Pre-stroke: bb
----------
aa=4deg bb=8.5+-0.03mm
----------
a=(45deg) b=(44deg)
----------
aa=4deg bb=8.5+-0.03mm
----------
a=(45deg) b=(44deg)
0000001901
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.
----------
----------
----------
----------
0000002201 RACK SENSOR
(VR) measurement voltage
(I) Part number of the control unit
(G) Apply red paint.
(H): End surface of the pump
1. Rack sensor adjustment (-0620)
(1)Fix the speed control lever at the full position
(2)Set the speed to N1 r/min.
(If the boost compensator is provided, apply boost pressure.)
(3)Adjust the bobbin (A) so that the rack sensor's output voltage is VR+-0.01.
(4)At that time, rack position must be Ra.
(5)Apply G at two places.
Connecting part between the joint (B) and the nut (F)
Connecting part between the joint (B) and the end surface of the pump (H)
----------
N1=1100r/min Ra=R1(13.3)+1.35mm
----------
----------
N1=1100r/min Ra=R1(13.3)+1.35mm
----------
Information:
AFFECTED PRODUCT
Model Identification Number
994K MM900301-00322
MRK00201-00204, 312-333
SMX00201-00209
PARTS NEEDED
Qty
Part Number Description
2 4538963 INJECTOR AS
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 9% 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
The existing standard grease injectors will need to be replaced with new 453-8963 XL Injector Assemblies for the both left-hand and right-hand K-pins. Refer to Image1.
Refer to the attached Rework Procedure.
Image1
SERVICE CLAIM ALLOWANCES
Product smu/age whichever comes first Caterpillar Dealer Suggested Customer Suggested
Parts % Labor Hrs% Parts % Labor Hrs% Parts % Labor Hrs%
0-15000 hrs,
0-36 mo 100.0% 100.0% 0.0% 0.0% 0.0% 0.0%
This is a 1.0-hour job
PARTS DISPOSITION
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.
Rework Procedure
Refer to the following Rework Procedure in order to install two new 453-8963 XL Injector Assemblies.
Refer to Image1.1.1 for the location of the injector bank.
1. Remove cover (A). Refer to Image1.1.2.
Image1.1.1
Image1.1.2
2. Remove existing injectors (C). Refer to Image1.2.1.
Image1.2.1
3. In order to remove the existing injector, loosen lower bolt (D) from the injector bank until half of the injector is free. Refer to Image1.3.1.
4. Remove the existing grease zerks, grease zerk caps, and adapters and reinstall on the new 453-8963 XL Injector Assemblies.
Image1.3.1
5. Install new 453-8963 XL Injector Assemblies (1).
6. Purge 453-8963 XL Injector Assemblies (1) with grease.
7. Adjust to full output (20 turns).
8. Reinstall cover (A).
Image1.4.1
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108822-2790
INJECTION-PUMP ASSEMBLY