Information injection-pump assembly
ZEXEL
101492-3460
1014923460
KOMATSU
6204711510
6204711510

Rating:
Cross reference number
ZEXEL
101492-3460
1014923460
KOMATSU
6204711510
6204711510
Zexel num
Bosch num
Firm num
Name
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 6-2-600
Outer diameter - inner diameter - length (mm) mm 6-2-600
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
1-2-4-3
Pre-stroke
mm
3.6
3.55
3.65
Rack position
Point A R=A
Point A R=A
Beginning of injection position
Drive side NO.1
Drive side NO.1
Difference between angles 1
Cyl.1-2 deg. 90 89.5 90.5
Cyl.1-2 deg. 90 89.5 90.5
Difference between angles 2
Cal 1-4 deg. 180 179.5 180.5
Cal 1-4 deg. 180 179.5 180.5
Difference between angles 3
Cal 1-3 deg. 270 269.5 270.5
Cal 1-3 deg. 270 269.5 270.5
Injection quantity adjustment
Adjusting point
A
Rack position
9.9
Pump speed
r/min
1200
1200
1200
Average injection quantity
mm3/st.
31.7
30.7
32.7
Max. variation between cylinders
%
0
-2.5
2.5
Basic
*
Fixing the lever
*
Injection quantity adjustment_02
Adjusting point
-
Rack position
10.5+-0.
5
Pump speed
r/min
425
425
425
Average injection quantity
mm3/st.
10.5
9.5
11.5
Max. variation between cylinders
%
0
-15
15
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.
Test data Ex:
Governor adjustment

N:Pump speed
R:Rack position (mm)
(1)Target notch: K
(2)The No. 1 torque control spring must have no set force.
(3)RACK CAP: R1
(4)Rack difference between N = N1 and N = N2
----------
K=10 R1=(17.5)mm N1=1200r/min N2=750r/min
----------
----------
K=10 R1=(17.5)mm N1=1200r/min N2=750r/min
----------
Speed control lever angle

F:Full speed
I:Idle
(1)Stopper bolt setting
----------
----------
a=7deg+-5deg b=21deg+-5deg
----------
----------
a=7deg+-5deg b=21deg+-5deg
Stop lever angle

N:Pump normal
S:Stop the pump.
----------
----------
a=26.5deg+-5deg b=53deg+-5deg
----------
----------
a=26.5deg+-5deg b=53deg+-5deg
Timing setting

(1)Pump vertical direction
(2)Position of key groove at No 1 cylinder's beginning of injection
(3)Stamp aligning marks on the pump housing flange.
(4)-
(5)-
----------
----------
a=59deg36min+-3deg b=0deg24min+-30min
----------
----------
a=59deg36min+-3deg b=0deg24min+-30min
Information:
Start By:a. remove crankshaft rear seal and wear sleeveb. remove oil pan 1. Fasten a hoist to implement pump (1) and remove the pump (if equipped). The weight of implement pump (1) is 29 kg (75 lb). 2. Remove plates (2).3. Remove pump drives (3) (if equipped) with Tool (A) and a hoist. The weight of each pump drive is 29 kg (65 lb). 4. Remove plate (4). 5. Remove starting motor (5) and disconnect oil supply line (6) at the flywheel housing. 6. Remove engine rear supports (7). 7. Remove turbocharger oil supply line (8) and bracket (9). 8. Remove top section of turbocharger heat shield (10). 9. Remove turbocharger drain line (11) and elbow (12). 10. Remove plate (13). 11. Remove bolts (14) and the remainder of the bolts which hold bracket (15) to the engine and remove bracket (15). 12. Use Tooling (A) and fasten a hoist to flywheel housing (16). Remove the bolts that hold flywheel housing (16) in position and pull flywheel housing off the dowels and remove it. The weight of the flywheel housing is 191 kg (425 lb).13. Put the flywheel housing in the position shown. 14. Remove bolts (17) from shafts (19).
Bearings (20) can fall out of gears (18) when the gears are removed from the flywheel housing.
15. Remove gears (18) from the flywheel housing. 16. Remove shafts (19), bearing cones (22), spacers (21) and bearing cones (20) from gears (18). 17. If necessary, remove bearing cups (23) and (25), spacers (24) and the snap rings from gears (18). The bearing cups will have damage after removal. Use new parts for replacement.Install Flywheel Housing
1. Install the snap rings in the groove in idler gear (2).2. Install the spacers for bearing cups (1) in gears (2) from the side of gears (2) that have the part number. Make sure the notches in the spacers are toward the snap rings. The snap rings are not in the center of the gear bores. The spacers must be installed in the gear bores that have the longer measurement from the snap ring to the surface of the gear.3. Lower the temperature of bearing cups (1) and install them in gears (2) until they make contact with the spacers. 4. Put the flywheel housing in the position shown and install bearing cones (3). 5. Put idler gears (2) in position on the bearing cones. Make sure the side of gears (2) with the part number is toward the flywheel housing. 6. Put spacer (4) on the inner race of the bearing cone. 7. Install bearing cones (5) in the gears. 8. Install shafts (6) and the bolts to hold them.
Put the No. 1 piston at top center to make an alignment of the timing marks on the crankshaft rear gear (9) with the balancer gear (8). Failure to follow this procedure can cause damage to the engine.
9. Clean the front face of the flywheel housing and the rear face of the cylinder block. Make
Bearings (20) can fall out of gears (18) when the gears are removed from the flywheel housing.
15. Remove gears (18) from the flywheel housing. 16. Remove shafts (19), bearing cones (22), spacers (21) and bearing cones (20) from gears (18). 17. If necessary, remove bearing cups (23) and (25), spacers (24) and the snap rings from gears (18). The bearing cups will have damage after removal. Use new parts for replacement.Install Flywheel Housing
1. Install the snap rings in the groove in idler gear (2).2. Install the spacers for bearing cups (1) in gears (2) from the side of gears (2) that have the part number. Make sure the notches in the spacers are toward the snap rings. The snap rings are not in the center of the gear bores. The spacers must be installed in the gear bores that have the longer measurement from the snap ring to the surface of the gear.3. Lower the temperature of bearing cups (1) and install them in gears (2) until they make contact with the spacers. 4. Put the flywheel housing in the position shown and install bearing cones (3). 5. Put idler gears (2) in position on the bearing cones. Make sure the side of gears (2) with the part number is toward the flywheel housing. 6. Put spacer (4) on the inner race of the bearing cone. 7. Install bearing cones (5) in the gears. 8. Install shafts (6) and the bolts to hold them.
Put the No. 1 piston at top center to make an alignment of the timing marks on the crankshaft rear gear (9) with the balancer gear (8). Failure to follow this procedure can cause damage to the engine.
9. Clean the front face of the flywheel housing and the rear face of the cylinder block. Make