Information injection-pump assembly
ZEXEL
101601-9881
1016019881
YANMAR
12768751010
12768751010
Rating:
Service parts 101601-9881 INJECTION-PUMP ASSEMBLY:
1.
_
2.
FUEL INJECTION PUMP
7.
COUPLING PLATE
8.
_
9.
_
10.
NOZZLE AND HOLDER ASSY
11.
Nozzle and Holder
12.
Open Pre:MPa(Kqf/cm2)
13.
NOZZLE-HOLDER
14.
NOZZLE
15.
NOZZLE SET
Cross reference number
ZEXEL
101601-9881
1016019881
YANMAR
12768751010
12768751010
Zexel num
Bosch num
Firm num
Name
Calibration Data:
Adjustment conditions
Test oil
1404 Test oil ISO4113 or {SEAJ967d}
1404 Test oil ISO4113 or {SEAJ967d}
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 6-2-600
Outer diameter - inner diameter - length (mm) mm 6-2-600
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
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
3.8
3.75
3.85
Beginning of injection position
Drive side NO.1
Drive side NO.1
Difference between angles 1
Cal 1-4 deg. 60 59.5 60.5
Cal 1-4 deg. 60 59.5 60.5
Difference between angles 2
Cyl.1-2 deg. 120 119.5 120.5
Cyl.1-2 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
Cal 1-3 deg. 240 239.5 240.5
Cal 1-3 deg. 240 239.5 240.5
Difference between angles 5
Cal 1-5 deg. 300 299.5 300.5
Cal 1-5 deg. 300 299.5 300.5
Injection quantity adjustment
Adjusting point
A
Rack position
10.7
Pump speed
r/min
1300
1300
1300
Each cylinder's injection qty
mm3/st.
137.5
134.8
140.2
Basic
*
Fixing the lever
*
Injection quantity adjustment_02
Adjusting point
B
Rack position
5.3+-0.5
Pump speed
r/min
225
225
225
Each cylinder's injection qty
mm3/st.
18.8
16.3
21.3
Fixing the rack
*
Injection quantity adjustment_03
Adjusting point
C
Rack position
-
Pump speed
r/min
100
100
100
Average injection quantity
mm3/st.
167
152
182
Fixing the lever
*
Rack limit
*
Timer adjustment
Pump speed
r/min
450--
Advance angle
deg.
0
0
0
Remarks
Start
Start
Timer adjustment_02
Pump speed
r/min
400
Advance angle
deg.
0.5
Timer adjustment_03
Pump speed
r/min
1100
Advance angle
deg.
2.5
2
3
Remarks
Finish
Finish
Test data Ex:
Governor adjustment
N:Pump speed
R:Rack position (mm)
(1)Target notch: K
(2)RACK LIMIT
----------
K=5
----------
----------
K=5
----------
Speed control lever angle
F:Full speed
I:Idle
S:Stop
----------
----------
a=7deg+-5deg b=28deg+-5deg c=32deg+-3deg
----------
----------
a=7deg+-5deg b=28deg+-5deg c=32deg+-3deg
Stop lever angle
N:Pump normal
S:Stop the pump.
----------
----------
a=20deg+-5deg b=53deg+-5deg
----------
----------
a=20deg+-5deg b=53deg+-5deg
Timing setting
(1)Pump vertical direction
(2)Coupling's key groove position at No 1 cylinder's beginning of injection
(3)-
(4)-
----------
----------
a=(60deg)
----------
----------
a=(60deg)
Information:
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.
This Revised Service Letter replaces the 18Jul2019 (Revised 23Jul2019) Service Letter. Changes have been made to the Affected Product.
TERMINATION DATE
31Jul2020
PROBLEM
The existing injector can improperly fuel under certain conditions on certain C175-16 Generator Sets. If the existing injector trim files are not updated it can/will cause engine instability at low loads.
AFFECTED PRODUCT
Model Identification Number
C175-16 WYC01003, 2006-2020
PARTS NEEDED
Qty
Part Number Description
16 INJECTOR_TRIM_FILE INJECTOR TRIM FILE
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 32% 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
1. Download a Product Status Report (PSRPT) from the engine ECM.
2. Obtain the Injector Serial Numbers from the PSRPT.
3. Download the latest Injector Trim Files for each injector through SIS web.
4. Flash the updated Injector Trim Files to the ECM.
SERVICE CLAIM ALLOWANCES
Product smu/age whichever comes first Caterpillar Dealer Suggested Customer Suggested
Parts % Labor Hrs% Parts % Labor Hrs% Parts % Labor Hrs%
0-6000 hrs,
0-48 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.