Engine Iveco Vector 8. Manual — part 20

Tecnical view

1. electrical signal - 2. Ground

Pressure sensors
The pressure sensors are used to indicate the oil pressure (reference 3, Figure 1), atmospheric pressure (reference 5, Figure 1)
and turbo outlet air pressure (reference 13, Figure 1) values to the electronic unit.

Features:

Air pressure sensor
- max pressure

:

472 kPa (absolut)

. . . . . .

- voltage

5 ± 0.25 Vdc

. . . . . . . . . . . .

- energy absorption

20 mA Max

. . . .

- Tightening torque

10 ± 2 Nm

. . . .

Engine oil pressure sensor
- max pressure

1135 kPa (absolut)

. . . . . . .

- voltage

5 ± 0,25 Vdc

. . . . . . . . . . . .

- energy absorption

20 mA Max

. . . .

- Tightening torque

10 ± 2 Nm

. . . .

Atmosferic pressure sensor
- max pressure

116 kPa (assoluta)

. . . . . . .

- voltage

5 ± 0,25 Vdc

. . . . . . . . . . . .

- energy absorption

20 mA Max

. . . .

- Tightening torque

10 ± 2 Nm

. . . .

Figure 3

Figure 4

Engine components

Temperature sensors

These are NTC type sensors and are used to indicate the operating temperatures of the engine coolant (reference 1, Figure 1),
engine oil (reference 2, Figure 1), fuel (reference 6, Figure 1) and exchanger outlet air (reference 12, Figure 1) to the electronic
unit

A. feed - B. ground - C. Electrical signal

89783

89784

SECTION 3 - INDUSTRIAL APPLICATION

47

VECTOR 8 ENGINES

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Base - April 2006

Tecnical view

Engine speed/timing sensor on crankshaft

This is an inductive type sensor and it is positioned on the engine flywheel (reference 8, Figure 1).

It generates signals obtained by means of the magnetic flow lines that close up through the holes that are made in the flywheel.
The electronic unit uses this signal in order to detect different engine r.p.m. states.

Figure 5

Figure 6

Engine speed/timing sensor on camshaft

This is an inductive type sensor and is positioned on the distribution shaft (reference 9, Figure 1).

It generates signals that are obtained by means of the magnetic flow lines that close up through the holes on the gears that are
keyed on the distribution shaft.. The signal that is generated and sent to the electronic unit that can calculate the injection moment.
The sensor must be assembled by tightening it to torque 28 ± 7 Nm.

Tecnical view

48

SECTION 3 - INDUSTRIAL APPLICATION

VECTOR 8 ENGINES

Base - April 2006

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Figure 7

Engine oil level sensor

This sensor is used to indicate that the sump oil level is too low.

Features:
- max pressure

:

5 - 28 Vdc

. . . . . .

- resistance

130 mA a 28 Vdc Max

. . . . . . . . . .

- work temperature

-40˚C / + 125˚C

. . .

- Tightening torque

10 ± 2 Nm

. . . .

A. Electrical contact in open position — B. Electrical contact in close position - low level in the oil sump

SECTION 3 - INDUSTRIAL APPLICATION

49

VECTOR 8 ENGINES

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Base - April 2006

Figure 8

A

Figure 9

A: Ground wire

XJ1: connector on utilities

XJ2: connector on engine side.

It is fitted directly on the engine using flexible plugs that dampen the vibration transmitted by the engine.

Connector on engine side.

ADEM III engine control unit

81391

89788

50

SECTION 3 - INDUSTRIAL APPLICATION

VECTOR 8 ENGINES

Base - April 2006

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