Information injection-pump assembly
BOSCH
9 400 610 440
9400610440
ZEXEL
101402-3793
1014023793
KOMATSU
3863350
3863350
Rating:
Service parts 101402-3793 INJECTION-PUMP ASSEMBLY:
1.
_
5.
AUTOM. ADVANCE MECHANIS
6.
COUPLING PLATE
7.
COUPLING PLATE
8.
_
9.
_
10.
NOZZLE AND HOLDER ASSY
11.
Nozzle and Holder
12.
Open Pre:MPa(Kqf/cm2)
21.6{220}
13.
NOZZLE-HOLDER
14.
NOZZLE
15.
NOZZLE SET
Cross reference number
BOSCH
9 400 610 440
9400610440
ZEXEL
101402-3793
1014023793
KOMATSU
3863350
3863350
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
Overflow valve
131424-3420
Overflow valve opening pressure
kPa
255
221
289
Overflow valve opening pressure
kgf/cm2
2.6
2.25
2.95
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
1-3-4-2
Pre-stroke
mm
2.5
2.45
2.55
Beginning of injection position
Drive side NO.1
Drive side NO.1
Difference between angles 1
Cal 1-3 deg. 90 89.5 90.5
Cal 1-3 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
Cyl.1-2 deg. 270 269.5 270.5
Cyl.1-2 deg. 270 269.5 270.5
Injection quantity adjustment
Adjusting point
A
Rack position
10.5
Pump speed
r/min
1250
1250
1250
Average injection quantity
mm3/st.
97.5
96.5
98.5
Max. variation between cylinders
%
0
-2.5
2.5
Basic
*
Fixing the lever
*
Boost pressure
kPa
46.7
46.7
Boost pressure
mmHg
350
350
Hydraulic cylinder ON
*
Injection quantity adjustment_02
Adjusting point
C
Rack position
7.1+-0.5
Pump speed
r/min
525
525
525
Average injection quantity
mm3/st.
8.5
7.5
9.5
Max. variation between cylinders
%
0
-15
15
Fixing the rack
*
Boost pressure
kPa
0
0
0
Boost pressure
mmHg
0
0
0
Hydraulic cylinder ON
*
Injection quantity adjustment_03
Adjusting point
D
Rack position
-
Pump speed
r/min
100
100
100
Average injection quantity
mm3/st.
80
80
90
Fixing the lever
*
Boost pressure
kPa
0
0
0
Boost pressure
mmHg
0
0
0
Hydraulic cylinder OFF
*
Rack limit
*
Boost compensator adjustment
Pump speed
r/min
800
800
800
Rack position
R1-1
Boost pressure
kPa
17.3
14.6
20
Boost pressure
mmHg
130
110
150
Boost compensator adjustment_02
Pump speed
r/min
800
800
800
Rack position
R1(10.5)
Boost pressure
kPa
33.3
26.6
40
Boost pressure
mmHg
250
200
300
Test data Ex:
Governor adjustment
N:Pump speed
R:Rack position (mm)
(1)Target notch: K
(2)Tolerance for racks not indicated: +-0.05mm.
(3)Adjust the secondary timing before adjusting the governor.
(4)RACK LIMIT (When hydraulic cylinder is OFF)
(5)Set idle sub-spring
(6)Main spring setting
(7)The torque control spring must does not have a set force.
(8)Boost compensator stroke: BCL
(9)When the hydraulic cylinder is ON (P1)
----------
K=11 BCL=1+-0.1mm P1=((392)kPa{(4)kgf/cm2})
----------
----------
K=11 BCL=1+-0.1mm P1=((392)kPa{(4)kgf/cm2})
----------
Speed control lever angle
F:Full speed
I:Idle
(1)-
(2)-
(3)Stopper bolt setting
----------
----------
a=20deg+-5deg b=36deg+-5deg
----------
----------
a=20deg+-5deg b=36deg+-5deg
Stop lever angle
N:Pump normal
S:Stop the pump.
----------
----------
a=0deg+-5deg b=53deg+-5deg
----------
----------
a=0deg+-5deg b=53deg+-5deg
Timing setting
(1)Pump vertical direction
(2)Key groove position at No. 1 cylinder's beginning of injection position (at BTDC: aa).
(3)Position of the key groove of the No. 1 cylinder at B.T.D.C. bb (fix the governor flyweight at this position for delivery).
(4)B.T.D.C.: aa
(5)At second timing adjustment, set the camshaft at the * position and tighten the flyweight locknut.
(6)Align the flyweight's timing gear position with the lockpin groove and then fully tighten the flyweight to the camshaft.
(7)Remove the lock pin and adjust the governor. Reinstall the lock pin to fix the flyweight for delivery.
----------
aa=16deg bb=0deg
----------
a=54deg54min+-3deg b=8deg+-30min
----------
aa=16deg bb=0deg
----------
a=54deg54min+-3deg b=8deg+-30min
Information:
Introduction
This Special Instruction contains the necessary procedure in order to install unit injectors for 3114, 3116, and 3126 MUI engines.Removal and Installation Procedure
Note: To avoid damage to the unit injector during removal of the unit injector from the cylinder head, refer to the Service Manual for the removal procedure of the unit injector.Use the latest process for servicing the unit injector sleeves in the cylinder head before you install replacement unit injectors. Refer to the Service Manual and other service news articles in order to find the latest service information, including new tools and procedures.Before a new unit injector or a remanufactured unit injector is installed into an engine, take adequate precautions in order to clean the internal fuel lines and the unit injector sleeve. Also, install a new Caterpillar high efficiency fuel filter.Lubricate the injector rack bar with clean diesel fuel or 1U-8265 Penetrating Oil .
Illustration 1 g02144296
Incorrect testing procedure for the tappet springDo not depress the tappet spring. Refer to Illustration 1. Do not force the injector rack bar in and out since this action may damage the internal parts of the unit injector. A tight rack on a unit injector that is not installed in the engine is not an indication of a faulty unit injector. Forcing the injector rack bar in and out may cause the unit injector to become damaged. Forcing the injector rack bar in and out may possibly void all the warranty.Do not test the unit injectors prior to engine installation. The unit injectors are tested 100% at the factory and Pop Testing may contaminate the unit injector.Before you install the unit injector, apply clean engine oil on the O-ring seals for ease of installation.Install the unit injector according to the procedure in the Service Manual by using 173-1530 Injector Seating Tool . Tighten the unit injector clamp retaining bolt to a torque of 12 3 N m (9 2 lb ft).Verify the following parameters and settings according to the procedures in the Service Manual: unit injector synchronization, fuel setting, fuel timing and valve lash. Adjust the parameters and settings in order to meet specifications only.
This Special Instruction contains the necessary procedure in order to install unit injectors for 3114, 3116, and 3126 MUI engines.Removal and Installation Procedure
Note: To avoid damage to the unit injector during removal of the unit injector from the cylinder head, refer to the Service Manual for the removal procedure of the unit injector.Use the latest process for servicing the unit injector sleeves in the cylinder head before you install replacement unit injectors. Refer to the Service Manual and other service news articles in order to find the latest service information, including new tools and procedures.Before a new unit injector or a remanufactured unit injector is installed into an engine, take adequate precautions in order to clean the internal fuel lines and the unit injector sleeve. Also, install a new Caterpillar high efficiency fuel filter.Lubricate the injector rack bar with clean diesel fuel or 1U-8265 Penetrating Oil .
Illustration 1 g02144296
Incorrect testing procedure for the tappet springDo not depress the tappet spring. Refer to Illustration 1. Do not force the injector rack bar in and out since this action may damage the internal parts of the unit injector. A tight rack on a unit injector that is not installed in the engine is not an indication of a faulty unit injector. Forcing the injector rack bar in and out may cause the unit injector to become damaged. Forcing the injector rack bar in and out may possibly void all the warranty.Do not test the unit injectors prior to engine installation. The unit injectors are tested 100% at the factory and Pop Testing may contaminate the unit injector.Before you install the unit injector, apply clean engine oil on the O-ring seals for ease of installation.Install the unit injector according to the procedure in the Service Manual by using 173-1530 Injector Seating Tool . Tighten the unit injector clamp retaining bolt to a torque of 12 3 N m (9 2 lb ft).Verify the following parameters and settings according to the procedures in the Service Manual: unit injector synchronization, fuel setting, fuel timing and valve lash. Adjust the parameters and settings in order to meet specifications only.