Engine JAC HFC4DA1-2C. Manual — part 59

IP Instrument

Instrument

Instrument

Instrument and

and

and

and Warning

Warning

Warning

Warning System

System

System

System

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Diagnosis

Diagnosis

Diagnosis

Diagnosis and

and

and

and Test

Test

Test

Test

Function

Function

Function

Function description

description

description

description of

of

of

of the

the

the

the combination

combination

combination

combination instrument

instrument

instrument

instrument

1.

Water temperature gauge

It processes water temperature signals received by
the instrument, converts these signals to voltage
signals firstly then to digital signals via AD and
controls the water temperature stepping motor for
the indication of corresponding values.

2.

Tachometer

It carries out the algorithmic-processing for signals
sent by the generator, controls the speed stepping
motor for the indication of corresponding values.
Corresponding speed signal frequency for every
1000R/MIN is 260HZ.

3.

Speedometer

It carries out the algorithmic-processing for signals
sent by the vehicle speed sensor and controls the
vehicle speed stepping motor for the indication of
corresponding values.

4.

Fuel gauge

It processes resistance signals sent by the fuel
sensor, converts these signals to voltage signals
firstly then to digital signals via AD and controls
the fuel stepping motor for the indication of
corresponding values.

IP Instrument

Instrument

Instrument

Instrument and

and

and

and Warning

Warning

Warning

Warning System

System

System

System

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Diagnosis

Diagnosis

Diagnosis

Diagnosis and

and

and

and Test

Test

Test

Test

Function

Function

Function

Function description

description

description

description of

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of

of the

the

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combination instrument

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instrument

5.

Accumulative total and subtotal odometer
The LCD is applied for the indication of total
mileage and subtotal mileage. The display interface
can be switched via the application of the adjusting
lever at the right side. The subtotal odometer can
be reset via pressing the adjusting lever for 2S.

6.

Water temperature warning lamp
In

the

case

of

overhigh

engine

antifreeze

temperature, the warning lamp lightens.

7.

Brake shoe wear indicator lamp
In the case of friction lining wear with a certain
extent, the brake shoe wear indicator lamp will be
lit to remind you of brake lining replacement.

8.

Engine oil pressure warning lamp
In the case of excessively low engine oil pressure,
the warning lamp will keep lit after engine start or
it will be lit during vehicle running, indicating
insufficient engine oil pressure.

IP Instrument

Instrument

Instrument

Instrument and

and

and

and Warning

Warning

Warning

Warning System

System

System

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Diagnosis

Diagnosis

Diagnosis

Diagnosis and

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and Test

Test

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Function

Function

Function

Function description

description

description

description of

of

of

of the

the

the

the combination

combination

combination

combination instrument

instrument

instrument

instrument

9.

Charging warning lamp
If the indicator lamp keeps lit or it will be lit during
vehicle running, it indicates that there may be
electrical faults in the charging system.

10. Exhaust fault indicator lamp

In the case of exhaust emission exceeding the
standard value, this lamp will be lit.

11. Fuel filter warning lamp

In the case of water level of oil-water separator
reaching danger level, the oil-water separator water
volume indicator lamp lightens.

12. Diesel oil preheating indicator lamp

The preheating indicator lamp may keep lit for a
while or go out immediately. The lit time varies
according to the engine and coolant temperatures.

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and Warning

Warning

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Diagnosis

Diagnosis

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Diagnosis and

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and Test

Test

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Function

Function

Function

Function description

description

description

description of

of

of

of the

the

the

the combination

combination

combination

combination instrument

instrument

instrument

instrument

13. EPC indicator lamp

If the indicator lamp is in the state of normally on,
it indicates that there are electronic faults.

14. Seat belt warning lamp

It will keep lit until the driver’s seat belt has been
fastened.

15. Left turn signal indicator lamp

When the left turn signal lamp is lit, this indicator
lamp will be lit together with a turn indicator lamp
in the corresponding direction. When the turn
signal lamp is turned off, this indicator lamp will
go out automatically.

16. Right turn signal indicator lamp

When the right turn signal lamp is lit, this indicator
lamp will be lit together with a turn indicator lamp.
When the turn signal lamp is turned off, this
indicator lamp will go out automatically.