106971-0920 ZEXEL INJECTION-PUMP ASSEMBLY Calibration Data 1069710920

Information Cross number Calibration Data Calibration Data Ex

Information injection-pump assembly

ZEXEL 106971-0920 1069710920

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Cross reference number

ZEXEL 106971-0920 1069710920

Zexel num

Bosch num

Firm num

Name

106971-0920

INJECTION-PUMP ASSEMBLY

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 134424-4220

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 10-9-4-3 -6-5-8-7 -2-1

Pre-stroke mm 3.65 3.6 3.7

Beginning of injection position
Governor side NO.1

Difference between angles 1
Cal 10-9 deg. 45 44.5 45.5

Difference between angles 2
Cal 10-4 deg. 72 71.5 72.5

Difference between angles 3
Cal 10-3 deg. 117 116.5 117.5

Difference between angles 4
Cal 10-6 deg. 144 143.5 144.5

Difference between angles 5
Cal 10-5 deg. 189 188.5 189.5

Difference between angles 6
Cal 10-8 deg. 216 215.5 216.5

Difference between angles 7
Cal 10-7 deg. 261 260.5 261.5

Difference between angles 8
Cal 10-2 deg. 288 287.5 288.5

Difference between angles 9
Cal 10-1 deg. 333 332.5 333.5

Injection quantity adjustment

Adjusting point A

Rack position 9.6

Pump speed r/min 700 700 700

Average injection quantity mm3/st. 118.4 117.4 119.4

Max. variation between cylinders % 0 -4 4

Basic *

Fixing the lever *

Injection quantity adjustment_02

Adjusting point B

Rack position 9.4+-0.5

Pump speed r/min 1100 1100 1100

Average injection quantity mm3/st. 118.1 116.1 120.1

Max. variation between cylinders % 0 -4 4

Fixing the lever *

Injection quantity adjustment_03

Adjusting point C

Rack position 6.7+-0.5

Pump speed r/min 235 235 235

Average injection quantity mm3/st. 10.4 8.4 12.4

Max. variation between cylinders % 0 -10 10

Fixing the rack *

Injection quantity adjustment_04

Adjusting point D

Rack position -

Pump speed r/min 100 100 100

Average injection quantity mm3/st. 155 155

Fixing the lever *

Remarks
After startup boost setting

Timer adjustment

Pump speed r/min 1000

Advance angle deg. 1.1 0.6 1.6

Timer adjustment_02

Pump speed r/min 1100

Advance angle deg. 5 4.5 5.5

Remarks
Finish

Test data Ex:

Governor adjustment

N:Pump speed R:Rack position (mm) (1)Tolerance for racks not indicated: +-0.05mm. (2)Excess fuel setting for starting: SXL (3)Damper spring setting (4)Variable speed specification: idling adjustment (5)Fix the lever at the full-load position at delivery. (6)Main spring setting
----------
SXL=10.3+-0.1mm
----------

Speed control lever angle

F:Full speed I:Idle (1)Pump speed = aa (2)Set the stopper bolt (fixed at full-load position at delivery.)
----------
aa=290r/min
----------
a=(13deg)+-5deg b=6deg+-5deg

0000000901

F:Full load I:Idle (1)Use the hole at R = aa (2)Stopper bolt setting
----------
aa=64.3mm
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a=18.5deg+-5deg b=23.5deg+-3deg

Stop lever angle

N:Pump normal S:Stop the pump. (1)Drive side
----------

----------
a=12deg+-5deg b=64deg+-5deg

Timing setting

(1)Pump vertical direction (2)Position of the coupling's key groove at the start of injection for the No. 10 cylinder. (3)- (4)-
----------

----------
a=(90deg)

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.
Termination Date
August 31, 1997Problem
0R0906, 0R1756, 0R1758, 0R2921, 0R2922, 0R2923, 0R2924, 0R2925, 0R3051, and 0R3052 Remanufactured Unit Injectors with date codes between January 01, 1997 and April 30, 1997 need to be removed from Parts Stock.Action Required
Inspect all 0R0906, 0R1756, 0R1758, 0R2921, 0R2922, 0R2923, 0R2924, 0R2925, 0R3051, and 0R3052 Remanufactured Unit Injectors with date codes between January 01, 1997 and April 30, 1997 from Parts Stock.
The date code can be located below the part name and above the part number on part number tag attached to the box. The date code is formatted as DDMMYYXXX (example; a box marked with a date code of 150195068 would indicate a part manufactured on January 15, 1995 at plant number 068).
If the injector is no longer in the original box, use the date code engraved on the top of the unit injector tappet. It is in the "NUMERAL KOD" format. The code consists of the month and the year.
Where the numbers for the months and years are coded as follows:
January 1997 ... NUDKFebruary 1997... NMDKMarch 1997 ... NEDKApril 1997 ... NRDKTo inspect the injectors, push the rack bar in against the trim adjustment screw (the fuel off position). On the flat "D" section of the rack bar extending out of the injector and beyond the rack teeth, inspect for a shinny grooved machine mark completely across the flat surface and parallel with the rack teeth. This mark is caused by the plunger gear contacting the flat of the rack bar If the mark is present, the injector should be returned to Caterpillar.
Service Claim Allowances
Submit one claim for all 0R0906, 0R1756, 0R1758, 0R2921, 0R2922, 0R2923, 0R2924, 0R2925, 0R3051, and 0R3052 Remanufactured Unit Injectors with date codes between January 01, 1997 and April 30, 1997 removed from Parts Stock.
MEPS dealers are reimbursed for recalled Parts Stock by returning the affected Parts Stock to their administering Caterpillar dealer for replacement.
Parts Disposition
All injectors removed from Parts Stock are to be returned as cores for remanufacturing.
U.S. and Canadian Dealers
Return all 0R0906, 0R1756, 0R1758, 0R2921, 0R2922, 0R2923, 0R2924, 0R2925, 0R3051, and 0R3052 Remanufactured Unit Injectors with date codes between January 01, 1997 and April 30, 1997 that are removed from Parts Stock and a copy of the claim to:
Caterpillar Inc.
Attn: Bill Harland - Warranty Review
501 Cardinal Drive
Corinth, MS 38834
All Other Dealers
Handle the parts in accordance with your Warranty Bulletin on Remanufactured Engines and Components, refer to the topic "Disposition of the Core Under Warranty".