106873-7251 ZEXEL INJECTION-PUMP ASSEMBLY Calibration Data 1068737251


106873-7251 INJECTION-PUMP ASSEMBLY
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Information injection-pump assembly

ZEXEL 106873-7251 1068737251

Service parts 106873-7251 INJECTION-PUMP ASSEMBLY:

1. _
2. FUEL INJECTION PUMP 106080-7010
3. GOVERNOR 105923-1421
4. SUPPLY PUMP 105237-4770
5. AUTOM. ADVANCE MECHANIS 105681-1650
6. COUPLING PLATE 105664-2230
7. COUPLING PLATE
8. _
9. _
10. NOZZLE AND HOLDER ASSY 105110-7450
11. Nozzle and Holder ME093733
12. Open Pre:MPa(Kqf/cm2) 15.7{160}/21.6{220}
13. NOZZLE-HOLDER 105041-4120
14. NOZZLE
15. NOZZLE SET 105019-0620

Include in #1:

106873-7251 as INJECTION-PUMP ASSEMBLY

Cross reference number

ZEXEL 106873-7251 1068737251


Zexel num
Bosch num
Firm num
Name
106873-7251 
 
   
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   105780-8250
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
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
Direction of rotation (viewed from drive side)
Right
  R
Injection timing adjustment
Direction of rotation (viewed from drive side)
Right
  R
Injection order   1-2-7-3- 4-5-6-8
Pre-stroke mm   3.9 3.85 3.95
Beginning of injection position
Governor side
  NO.1
Difference between angles 1
Cyl.1-2
deg.   45 44.5 45.5
Difference between angles 2
Cal 1-7
deg.   90 89.5 90.5
Difference between angles 3
Cal 1-3
deg.   135 134.5 135.5
Difference between angles 4
Cal 1-4
deg.   180 179.5 180.5
Difference between angles 5
Cal 1-5
deg.   225 224.5 225.5
Difference between angles 6
Cal 1-6
deg.   270 269.5 270.5
Difference between angles 7
Cal 1-8
deg.   315 314.5 315.5
Injection quantity adjustment
Adjusting point   -
Rack position   11.6
Pump speed r/min   700 700 700
Each cylinder's injection qty mm3/st.   116 112.5 119.5
Basic   *
Fixing the rack   *
Standard for adjustment of the maximum variation between cylinders   *
Injection quantity adjustment_02
Adjusting point   Z
Rack position   8+-0.5
Pump speed r/min   480 480 480
Each cylinder's injection qty mm3/st.   14 11.9 16.1
Fixing the rack   *
Standard for adjustment of the maximum variation between cylinders   *
Injection quantity adjustment_03
Adjusting point   A
Rack position   R1(11.6)
Pump speed r/min   700 700 700
Average injection quantity mm3/st.   116 115 117
Basic   *
Fixing the lever   *
Injection quantity adjustment_04
Adjusting point   B
Rack position   R1+1.2
Pump speed r/min   1100 1100 1100
Average injection quantity mm3/st.   123.5 119.5 127.5
Fixing the lever   *
Injection quantity adjustment_05
Adjusting point   C
Rack position   (R1-0.55 )
Pump speed r/min   500 500 500
Average injection quantity mm3/st.   112.5 108.5 116.5
Fixing the lever   *
Timer adjustment
Pump speed r/min   900--
Advance angle deg.   0 0 0
Remarks
Start
 
Timer adjustment_02
Pump speed r/min   850
Advance angle deg.   0.5
Timer adjustment_03
Pump speed r/min   1100
Advance angle deg.   3 2.5 3.5
Remarks
Finish
 

Test data Ex:

Governor adjustment

Test data 106873-7251
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=AC91
----------

Speed control lever angle

Test data 106873-7251
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=32deg+-5deg b=35.5deg+-3deg

Stop lever angle

Test data 106873-7251
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 (equivalent to R = dd).
----------
aa=54mm bb=1100r/min cc=3+-0.3mm dd=17.5mm
----------
a=41deg+-5deg b=5.5deg+-5deg c=(31deg)

0000001501 MICRO SWITCH

Adjustment of the micro-switch Adjust the bolt to obtain the following lever position when the micro-switch is ON. (1)Speed N1 (2)Rack position Ra
----------
N1=335r/min Ra=7.9+-0.1mm
----------

Timing setting

Test data 106873-7251
(1)Pump vertical direction (2)Coupling's key groove position at No 1 cylinder's beginning of injection (3)B.T.D.C.: aa (4)-
----------
aa=10deg
----------
a=(40deg)




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