1) The document provides identification information for various tractor models including the engine, air intake, injection type, number of cylinders, injector pump model, and injector type.
2) It describes the components and operation of the fuel injection system including the fuel tank, lines, pump, filter, injector pump, injectors and return lines. Diagrams show the components and their connections.
3) Technical details are given for components like the injector pump, fuel pump, filters, sensors and solenoid valves along with their specifications, diagrams and torque settings.
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Comprehensive program for Agricultural Finance, the Automotive Sector, and Empowerment . We will define the full scope and provide a detailed two-week plan for identifying strategic partners in each area within Limpopo, including target areas.:
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• Scope: Develop collaborations with automotive service providers to improve service quality and business operations.
• Target Areas: Polokwane, Lephalale, Mokopane, Phalaborwa, and Bela-Bela.
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CLAAS NECTIS VE 237 2+4WD (Type T14) Tractor Service Repair Manual.pdf
1. A2.2 Nectis 207 – 12.2005 – GB
Identification
Identification of injector pumps
160vfm00 Fig. 1
Tractor
217 VE
217 VL
227 VE
227 VL
227 F
237 VE
237 VL
247 F 257 VL
267 VL
267 F
Engine F4CE0304B*D F4CE0354C*D F4CE0354A*D F4CE0404A*D F4CE0454C*D F4CE0454A*D
Air intake Atmospheric Turbo-charged Atmospheric Turbo-charged
Injection Direct
Number of cylinders 3 4
Injector pump Bosch
Model VE 3/12 F VE 4/12 F
Type L 1035 L 1016 L 947 L 955 L 1000 L 957
Injection sequence 1 – 3 – 2 1 – 3 – 4 – 2
Injector Bosch
Type of injector DSLA145PV DSLA145P DSLA145PV DSLA145P
Reference on injectors 043213371 0432133780 043213371 0432133780
Injector calibration
pressure (bar)
266 ± 6
6. A2.6 Nectis 207 – 12.2005 – GB
Description
161vfm05 Fig. 4
Operating principle
Fuel is drawn from the fuel tank by the camshaft-driven
fuel pump located on the engine block . The fuel then
passes through the filter (19) to the transfer pump suction
chamber inlet. The transfer pump (vane type) is located
inside the injector pump and its role is to raise fuel
pressure as a function of increases of engine rpm. The
fuel then arrives at the valve that regulates the pressure
within the injector pump. The distributor piston later raises
this pressure and sends the fuel to the injectors via the
outlet connector. Excess fuel is recovered and returned to
the tank.
Nomenclature
5 Injector pump.
19 Fuel filter.
20 Line between feed pump and filter.
21 Line between fuel filter and injector pump.
22 Fuel pump.
21
22
5
20
19
7. Nectis 207 – 12.2005 – GB A2.7
Description
Injector pump
The pinion of the rotary injector pump is driven by the
camshaft pinion.
Identification plate
The identification plate is located on the pump body.
Typical identification: VE4/12F1150L955.
V = Rotary distributor piston.
E = Pump size.
4 = 4 cylinder engines (3 = 3 cylinder engines).
12 = Diameter of distributor piston (in mm).
F = Mechanical regulator.
1 150 = Pump rpm.
L = Direction of rotation.
955 = Pump model variant.
161vfm04 Fig. 5
Nomenclature (injector pump longitudinal section)
23 Membrane.
24 Adjustment collar.
25 Pushrod.
26 Operating lever.
27 Speed regulator.
28 Transfer pump.
29 Drive shaft.
30 Cam plate.
31 Advance mechanism.
32 Distributor piston.
33 Return connector.
34 Hydraulic head.
35 Control platen.
36 Floating shaft.
37 Return spring.
37
36
35
34
33
31
30
28
27
26
25
24
23
29
32
8. A2.8 Nectis 207 – 12.2005 – GB
Description
Fuel pump
The role of the pump is to deliver the fuel from the tank to
the injector pump inlet. It is located on the engine block
and is driven from the camshaft.
Nomenclature
22 Pump.
38 Fuel outlet (towards the filter).
39 Operating lever.
40 Fuel inlet (from the tank).
41 Camshaft.
161vfm03 Fig. 6
161vfm02 Fig. 7
Line filter
Filters: 300 microns.
Refer to chapter "L" of the operator's manual for
instructions on changing the line filter (57).
160vfm04 Fig. 8
OUT
IN
39
38
40
22
41
39
57
9. Nectis 207 – 12.2005 – GB A2.9
Description
Fuel filter
The filter is located near the injector/supply pump and its
role is to collect impurities and to separate any water
present in the fuel. At the base of the filter cartridge a
water drain screw or a water detector is provided.
Filters: 5 microns.
Nomenclature
19 Fuel filter.
42 Fuel filter bracket.
43 Water drain screw.
44 Water detector.
161vfm01 Fig. 9
161vfm06 Fig. 10
43
19
42
42
19
44
11. Nectis 207 – 12.2005 – GB A2.11
Description
Engine temperature sensor
The engine temperature sensor is mounted on the
cylinder head, close to the thermostat housing, and
records coolant temperature.
Characteristics:
System voltage: .............................................. 6 V to 12 V
Resistances:
at 80 °C........................................ 0,304 to 0,342 K.ohms
at 20 °C........................................ 2,262 to 2,760 K.ohms
at –10 °C.................................... 8,244 to 10,661 K.ohms
161vfm09 Fig. 12
Water temperature sensor for the cold start
advance mechanism
This sensor is fitted to the cylinder head on the left side of
the engine.
Characteristics
System voltage: 12 V.
Operating threshold
– 63 ± 3°C
Contacts open with increasing temperature.
– 53 ± 3°C
Closure of contacts with decreasing temperature.
161vfm10 Fig. 13
C
A
B
46
B
C
A
48
12. A2.12 Nectis 207 – 12.2005 – GB
Description
Solenoid valves on the injector pump
Nomenclature
4 Engine shutdown solenoid valve.
6 Solenoid valve for cold start advance mechanism.
161vfm12 Fig. 14
Water detector
A water detector (44) is fitted to the base of the fuel filter.
For further information see chapter "Instrument panel,
Characteristics".
161vfm13 Fig. 15
Oil pressure sensor
This sensor (53) is fitted to the block on the left side of the
engine.
Characteristics
System voltage: 12 V.
Operating threshold
– Contact closes.
With decreasing pressure: 0,6 bar.
– Contact opens.
With rising pressure: 0,9 bar.
161vfm14 Fig. 16
6
4
12 V
44
B
D
B
A
C
A
C
0,6
0,9
b
13. Nectis 207 – 12.2005 – GB A2.13
Description
Preheating element
This is an electric element (50) located in the inlet
manifold that is used to heat the air during pre-heating
operations. The element is supplied from a remote
controlled switch usually located near the engine.
Characteristics
System voltage: 12 V.
Maximum possible air flow: 2 cm³/min (at a pressure of
138 kPa).
161vfm17 Fig. 17
50
14. A2.14 Nectis 207 – 12.2005 – GB
Description
Electrical diagram (output)
This controller uses the remote switch to control the
element as a function of engine coolant temperature.
Characteristics
System voltage: 12 V.
Operating voltage: 7 V to 12 V.
Operating temperature: – 40 °C to 85 °C.
Maximum current in line "GH": 0,3 A.
Pre-heating controller
Description
F = Fuse.
R = Preheating element.
T = Relay.
GHC = Pre-heating controller.
161vfm18 Fig. 18
Pin N° Description
1 Output to "cold start" warning light.
2 Not used.
3 "feedback" signal input from the pre-heating element (FB).
4 Engine start signal input (D).
5 Start signal input (50).
6 Output to remote switch supplying preheating element (GH).
7 Supply positive (15).
8 Supply negative (31).
9 Not used.
10 Analogue temperature signal input (NTC).
30
N31
15
50
NTC
31
7
5
10
8
4
1 3
6 GH
FB
F
R
F
T
1,2 W
+0 30
GHC
15. Nectis 207 – 12.2005 – GB A2.15
Checks/Adjustments
Accelerator control adjustment
152vfm00 Fig. 19
105
104
100
103
105
101
102
106
104
100
101
102
106
A
B
16. A2.16 Nectis 207 – 12.2005 – GB
Checks/Adjustments
– Attach the control cable to the accelerator lever on the
injector pump (100).
– Connect the control cable to the accelerator pedal
(101).
– Check in the cab that the manual control lever is set to
minimum "A" (Fig. 19).
– Adjust the cable at the pedal end to achieve a light
tension then tighten the nuts (102). Ensure that the pump
lever is tight against the idle speed adjustment
screw (103).
– Adjust the manual control cable (105) then tighten the
nuts (106).
– Correct adjustment should enable the engine throttle
control (104) to return to the mechanical stop (103)
when the lever or the pedal is at its minimum setting and
enable an extension of the accelerator cable spring on
the pump when the manual lever or the pedal is at its
maximum setting.
Injector pump
Internal setting
The pump must be removed and cylinder n° 1 must be at
TDC on the compression stroke (refer to chapter
"Removal/refitting", "Injector pump").
– Remove the central screw (101) on the distributor
head.
– Align the keyway slot in the shaft with the outlet for
cylinder n° 1 item (B) for the 4 cylinder pump (5b) and
item (A) for the 3 cylinder pump (5a).
– Mount the pump shaft in a soft-faced vice.
– Attach tool (89) reference n° 60 05 005 560 with the
dial gauge (88) placing the shaft in contact with the head
of the distributor piston.
– Install the dial gauge at mid travel.
– Turn the pump so that the shaft turns clockwise until
the needle stops moving.
– Set the dial gauge to zero.
– Turn the pump so that the shaft turns anti-clockwise
until the dial gauge reads 1 for turbo-charged engines
and 1,15 for normally aspirated engines.
160vfm13 Fig. 20
160vfm14 Fig. 21
89
88
86
5a
A
101
101
86
5b
B
17. Nectis 207 – 12.2005 – GB A2.17
Checks/Adjustments
– Lock the shaft by tightening screw (86) then refit the
pump (refer to chapter "Removal/refitting", "Injector
pump").
– Check the pump installation (refer to paragraph
"Checking the timing of the injector pump").
Checking the timing of the injector pump
N° 1 cylinder must be at TDC on the compression stroke
(refer to chapter "Removal/refitting", "Injector pump").
The pump must be attached to the engine block with the
pump shaft free and the operating lever attachment nut
tightened.
– Remove the central screw on the distributor head.
– Attach tool (89) reference n° 60 05 005 560 with the
dial gauge (88) placing the shaft in contact with the head
of the distributor piston (Fig. 22).
– Install the dial gauge at mid travel.
– Turn the engine flywheel against the normal operating
direction until the dial gauge needle stops moving.
– Set the dial gauge to zero.
– Turn the engine flywheel in the normal operating
direction to return to TDC (replace the flywheel locking
pin). The dial gauge should show a reading of 1 for
turbo-charged engines and 1,15 for normally aspirated
engines.
– If these values are not obtained, slacken the 3 pump
attachment nuts and rotate it clockwise or anti-clockwise
to obtain the desired reading.
– Re-tighten the 3 pump attachment nuts.
160vfm07 Fig. 22
88
89
18. A2.18 Nectis 207 – 12.2005 – GB
Checks/Adjustments
Injector
Instructions for the removal of the injectors will be found in
the chapter "Removal/refitting of injectors".
Check the injector's pressure setting (see chapter
"identification" for pressure values).
Note: It is recommended to aim for the maximum
value in the adjustment because after operating for
some time the pressure drops slightly before
stabilising. Repeat the adjustment in order to obtain a
reliable result.
Note: The injector nozzle must never be pointing
towards the person performing the adjustment. The
jet escaping from a port can pierce clothing and skin,
and cause serious infections. The jet should be
recovered in a transparent container.
160vfm05 Fig. 23
19. Nectis 207 – 12.2005 – GB A2.19
Checks/Adjustments
Supply pressure
– Create a test installation as shown in figure n° 22 to
check the fuel supply pressure.
– Connect the ends of the lines (100a) to the filter
outlet (19), (100b), to the injector pump inlet (5), (100c)
and to the reference pressure gauge n° 60 05 005 521.
– Start the engine.
– Check the pressure (refer to chapter A1
"measurement and test points" for pressure values).
– If the pressure is low, check the supply system (filter,
strainer, hoses) and re-test.
Nomenclature
5 Injector pump.
19 Fuel filter.
97 Pressure gauge.
98 2 elbow connectors reference n° 00 11 306 150.
99 6 hose clamps.
100 Fuel pipe (internal diameter 9,5 mm).
101 "T" piece reference n° 77 00 067 854.
160vfm08 Fig. 24
100b
100a
100c
97
98
98 5
99
19
101
20. A2.20 Nectis 207 – 12.2005 – GB
Removal/refitting
Fuel filter
Removal of the fuel filter bracket
– Place a container under the fuel filter and unscrew the
condensation drain covers under the filter. Drain out all
the fuel present.
– Unscrew fully the valve and remove the fuel filter (19).
– Disconnect the fuel lines (20), (21) from the feed pump
to the filter bracket and from the latter to the injector
pump.
– Remove the fuel filter bracket (42).
To disconnect the fuel lines (20), (21) (Fig. 25), press
down on the fastener (54) as shown in figure (B). After
disconncting the lines, withdraw the fastener (54) to its
locked position (Fig. A).
Refitting the fuel filter
Proceed in reverse order to the removal operations.
N.B.: Before refitting the fuel filter (19), it must be
refilled with fuel to facilitate the bleeding of the fuel
feed system.
161vfm19 Fig. 25
161vfm20 Fig. 26
Injection system
Injection system bleeding
Refer to the user manual.
42
19
21
20
54
54
A B
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22. Nectis 207 – 12.2005 – GB A2.21
Removal/refitting
Injector pump
Finding top dead centre (TDC)
– Remove the starter motor.
– Fit the flywheel rotation tool (90) reference
n° 77 01 388 169 (Fig. 27).
160vfm09 Fig. 27
1st method (Fig. 27)
– Turn the flywheel carefully in the normal rotational
sense to take up the play in the gear train.
– Turn the flywheel until the 8mm pin ø8 (91) engages in
the socket on the flywheel provided for this purpose.
– Check that cylinder n° 1 is at TDC on the compression
stroke, in other words the inlet and exhaust valves are
both fully closed and not partially lifted.
2nd method (Fig. 28)
– Remove the first injector, fit tool n° 00 11 308 920 (81)
with a dial gauge (82) and remove the rocker cover (83).
– Use the flywheel rotation tool (90) n° 77 01 388 169 to
turn the crankshaft until n° 1 cylinder is at TDC.
TDC on the compression stroke for n° 1 cylinder is
obtained when the dial gauge needle is at its maximum
value and the inlet and exhaust valves are both closed
and not partially lifted.
161vfm34 Fig. 28
91
90
83
81
82
23. A2.22 Nectis 207 – 12.2005 – GB
Removal/refitting
Removal of injector pump on 3-cylinder
engines
– Disconnect the elecrical harness (58) from the engine
shut down and cold start solenoid valves.
– Release the clamp from the fuel scavenge pipe (18)
return to the injector pump.
– Release the clamp from the fuel supply (10) and
scavenge (59) pipes.
– Remove the turbo pressure line (55).
– Remove the roll bar (depending on equipment fit).
– Remove the feed pump and if necessary the oil
pressure sensor.
160vfm06 Fig. 29
55
58
6
18
10
59
24. Nectis 207 – 12.2005 – GB A2.23
Removal/refitting
161vfm25 Fig. 30
– Unscrew the injector connectors (60).
– Unscrew the screws that retain the tube attachment
brackets (63), (64), (61), (62) then remove the tubes (1a).
– Fit blanks to the ends of the tubes.
Nomenclature
1a Injection pipes.
2a Injector.
5a Injector pump.
18a Fuel return line to the injector pump.
60 Injector pump outlet connector.
61 Attachment screw for small rear bracket
(on the inlet manifold plate).
62 Bracket attachment screw.
63 Attachment screw for small front
bracket (on the inlet manifold plate).
64 Attachment screw for the small bracket
near the injector pump.
A Cylinder n° 1 outlet.
61
18a
5a
A
60
64
2a
63
62 1a