Information injection-pump assembly
ZEXEL
106871-0970
1068710970

Rating:
Service parts 106871-0970 INJECTION-PUMP ASSEMBLY:
1.
_
7.
COUPLING PLATE
8.
_
9.
_
10.
NOZZLE AND HOLDER ASSY
11.
Nozzle and Holder
12.
Open Pre:MPa(Kqf/cm2)
17.7{180}/22.6{230}
13.
NOZZLE-HOLDER
15.
NOZZLE SET
Include in #1:
106871-0970
as INJECTION-PUMP ASSEMBLY
Cross reference number
ZEXEL
106871-0970
1068710970
Zexel num
Bosch num
Firm num
Name
106871-0970
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
105780-8140
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
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
Right R
Injection timing adjustment
Direction of rotation (viewed from drive side)
Right R
Right R
Injection order
1-8-7-5-
4-3-6-2
Pre-stroke
mm
4.7
4.65
4.75
Beginning of injection position
Governor side NO.1
Governor side NO.1
Difference between angles 1
Cal 1-8 deg. 45 44.5 45.5
Cal 1-8 deg. 45 44.5 45.5
Difference between angles 2
Cal 1-7 deg. 90 89.5 90.5
Cal 1-7 deg. 90 89.5 90.5
Difference between angles 3
Cal 1-5 deg. 135 134.5 135.5
Cal 1-5 deg. 135 134.5 135.5
Difference between angles 4
Cal 1-4 deg. 180 179.5 180.5
Cal 1-4 deg. 180 179.5 180.5
Difference between angles 5
Cal 1-3 deg. 225 224.5 225.5
Cal 1-3 deg. 225 224.5 225.5
Difference between angles 6
Cal 1-6 deg. 270 269.5 270.5
Cal 1-6 deg. 270 269.5 270.5
Difference between angles 7
Cyl.1-2 deg. 315 314.5 315.5
Cyl.1-2 deg. 315 314.5 315.5
Injection quantity adjustment
Adjusting point
A
Rack position
11.2
Pump speed
r/min
650
650
650
Average injection quantity
mm3/st.
143.7
142.7
144.7
Max. variation between cylinders
%
0
-4
4
Basic
*
Fixing the lever
*
Injection quantity adjustment_02
Adjusting point
-
Rack position
7.3+-0.5
Pump speed
r/min
235
235
235
Average injection quantity
mm3/st.
13
11
15
Max. variation between cylinders
%
0
-10
10
Fixing the rack
*
Remarks
Adjust only variation between cylinders; adjust governor according to governor specifications.
Adjust only variation between cylinders; adjust governor according to governor specifications.
Injection quantity adjustment_03
Adjusting point
E
Rack position
-
Pump speed
r/min
100
100
100
Average injection quantity
mm3/st.
142
142
Fixing the lever
*
Remarks
After startup boost setting
After startup boost setting
Timer adjustment
Pump speed
r/min
850
Advance angle
deg.
0.5
Timer adjustment_02
Pump speed
r/min
1000
Remarks
Measure the actual advance angle.
Measure the actual advance angle.
Timer adjustment_03
Pump speed
r/min
1100
Advance angle
deg.
6
5.5
6.5
Remarks
Finish
Finish
Test data Ex:
Governor adjustment

N:Pump speed
R:Rack position (mm)
(1)Lever ratio: RT
(2)Target shim dimension: TH
(3)Tolerance for racks not indicated: +-0.05mm.
(4)Supplied with torque spring not set.
(5)Excess fuel setting for starting: SXL
(6)Damper spring setting
(7)Variable speed specification: idling adjustment
(8)Fix the lever at the full-load position at delivery.
(9)Main spring setting
----------
RT=1 TH=2.5mm SXL=11.9+-0.1mm
----------
----------
RT=1 TH=2.5mm SXL=11.9+-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=12deg+-5deg b=7deg+-5deg
----------
aa=290r/min
----------
a=12deg+-5deg b=7deg+-5deg
0000000901

F:Full load
I:Idle
(1)Stopper bolt setting
(2)Use the hole at R = aa
----------
aa=64.3mm
----------
a=18.5deg+-5deg b=28.5deg+-3deg
----------
aa=64.3mm
----------
a=18.5deg+-5deg b=28.5deg+-3deg
Stop lever angle

N:Pump normal
S:Stop the pump.
(1)Drive side
(2)Use the pin at R = aa
----------
aa=28mm
----------
a=10.5deg+-5deg b=64deg+-5deg
----------
aa=28mm
----------
a=10.5deg+-5deg b=64deg+-5deg
Timing setting

(1)Pump vertical direction
(2)Position of the coupling's key groove at the beginning of injection of the No. 8 cylinder.
(3)-
(4)-
----------
----------
a=(90deg)
----------
----------
a=(90deg)
Information:
To prevent possible personal injury, care must be taken when pin (17) is removed. The spring and plunger behind pin (17) are under spring force.
11. Remove pin (17), the spring and the plunger from the control lever.12. Remove band assembly (18) from the lever assembly. 13. Remove two seals (20) and bearing (19) from the governor housing. 14. Remove spring (22) from governor bolt (21).15. Remove seat (23) from riser (24).16. Remove the dowel from riser (24).17. Remove riser (24) and governor bolt (21) as a unit from governor plate (25).18. Remove governor bolt (21) from riser (24). 19. Remove spring (27) and washer (26) from the sleeve.20. Remove sleeve (28) from the servo piston valve. 21. Remove ring (32), large race (31), bearing (29) and small race (30) from sleeve (28). 22. Remove lock (34) from flyweights (33).23. Remove flyweight (33) from the governor plate. 24. Turn the governor plate over, and bend locks (36) down. Remove bolts (37), bracket (35) and the servo piston assembly from the governor plate. 25. Remove dowel (43), lever (44) and the servo piston assembly from bracket (35).26. Remove pin (42) and piston (38) from sleeve (40).27. Remove valve (39) from piston (38).28. Remove O-ring seal (41) from sleeve (40). 29. Tap lightly on cylinder (45) to remove it from the governor plate. 30. Remove O-ring seals (46) from cylinder (45). 31. Use Tool (A) to remove retaining ring (47) from the gear assembly. 32. Remove ring (51), spring (50), drive assembly (48) and ring (49) from gear assembly (52). 33. Use Tool (B) to remove ring (53) from drive gear assembly (52). Remove drive gear assembly (52) from the governor plate. 34. If dowel replacement is needed remove dowels (55), (56) and (57) from the governor plate.35. Remove bearing (54) from the governor plate.Assemble Governor
1. If a replacement of the dowels in the governor plate is necessary, see the illustration for correct installation dimensions. 2. Install bearing (1) for drive gear (2) in governor plate (3) with Tooling (A) until it is 0.51 0.25 mm (.020 .010 in) below the top surface of the governor plate. 3. Put clean engine oil on the inside diameter of bearing (1). Install drive gear (2) in governor plate (3). 4. Turn governor plate (3) over, and install snap ring (4) that holds drive gear (2) in place. 5. Install O-ring seals (6) on cylinder (5). 6. Put clean engine oil on the O-ring seals on cylinder (5). Install cylinder (5) in the governor plate with the notch in the cylinder in alignment with the bolt hole in the governor plate as shown.7. Install the O-ring seal on sleeve (9).8. Put clean engine oil on piston (7), sleeve (9) and valve (8). Install sleeve (9) on piston (7) and valve (8) in piston (7) as shown.9. Install the servo piston assembly in cylinder (5). Valve (8), sleeve (9) and piston (7) are parts of the servo piston assembly. 10. Put lever (11)
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106871-0970
INJECTION-PUMP ASSEMBLY