106672-4820 ZEXEL 9 400 617 136 BOSCH INJECTION-PUMP ASSEMBLY 9400617136 1066724820 1212606200

Information Cross number Calibration Data Calibration Data Ex

Information injection-pump assembly

BOSCH 9 400 617 136 9400617136

ZEXEL 106672-4820 1066724820

KUBOTA 1212606200 1212606200

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Cross reference number

BOSCH 9 400 617 136 9400617136

ZEXEL 106672-4820 1066724820

KUBOTA 1212606200 1212606200

Zexel num

Bosch num

Firm num

Name

106672-4820

9 400 617 136

1212606200 KUBOTA

INJECTION-PUMP ASSEMBLY
LH50 * K

Calibration Data:

Adjustment conditions

Test oil
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

Overflow valve 132424-0620

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

Injection timing adjustment

Direction of rotation (viewed from drive side)
Right R

Injection order 1-5-3-6- 2-4

Pre-stroke mm 3 2.95 3.05

Beginning of injection position
Drive side NO.1

Difference between angles 1
Cal 1-5 deg. 60 59.5 60.5

Difference between angles 2
Cal 1-3 deg. 120 119.5 120.5

Difference between angles 3
Cal 1-6 deg. 180 179.5 180.5

Difference between angles 4
Cyl.1-2 deg. 240 239.5 240.5

Difference between angles 5
Cal 1-4 deg. 300 299.5 300.5

Injection quantity adjustment

Adjusting point A

Rack position R(11.3)

Pump speed r/min 750 750 750

Each cylinder's injection qty mm3/st. 180 175.5 184.5

Basic *

Fixing the lever *

Injection quantity adjustment_02

Adjusting point B

Rack position 6.3+-0.5

Pump speed r/min 300 300 300

Each cylinder's injection qty mm3/st. 27 24 30

Fixing the lever *

Test data Ex:

Governor adjustment

N:Pump speed R:Rack position (mm) (1)Target notch: K (2)Idle sub spring setting: L1.
----------
K=5 L1=3.4-0.5mm
----------

Speed control lever angle

F:Full speed I:Idle (1)Stopper bolt setting
----------

----------
a=6deg+-5deg b=18deg+-5deg

Stop lever angle

N:Pump normal S:Stop the pump.
----------

----------
a=0deg+-5deg b=53deg+-5deg

Information:

Caterpillar: Confidential Yellow
PSP FOR REPLACING UNIT INJECTOR RETURN SPRINGS ON CERTAIN D11N TRACTORS; 776B TRACTORS; 777B, 785, 789 TRUCKS; 3508, 3512, 351 6 ENGINES - PS4591 - MAILED US AND CANADA, CACO, COFA, CFEL, COSA, MARINE TEPS
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.
May 30, 1991 U-110 A-78 AU-66 E-69 O-82 TM-9 PRODUCT SUPPORT PROGRAM FOR REPLACING UNIT INJECTOR RETURN SPRINGS ON CERTAIN D11N TRACTORS; 776B TRACTORS; 777B, 785, AND 789 TRUCKS; AND 3508, 3512, AND 3516 ENGINES. 1290 PS4591 This Program can be administered either before or after a failure. In either case the decision whether to apply the Program is made by the dealer. When reporting the repair, use "PS4591" as Part Number, "7755" as Group Number, and "96" as Description Code. Although this Program is to be administered as described above on the Affected Product, parts stock should be reworked as soon as possible. Termination Date
May 31, 1992
Problem
The return springs for Type 2 unit injectors on certain D11N Tractors; 776B Tractors; 777B, 785, and 789 Trucks; and 3508, 3512, and 3516 Engines may fail in some applications. Type 2 injectors are described on