How to Use YANMAR SMViO45-5 ViO55-5 Monitor Alarm System

For safer machine operation, the operator needs to have a clear understanding of the machine’s condition. However, it is difficult for the operator to keep an eye on every aspect of the machine he/she operating.This instrucitons how you guide on how to use YANMAR SMViO45-5 ViO55-5 monitor and alarm system.

Therefore, gauges and alarms are installed to warn the operator of any trouble of the machine at the early stage.

Note :The monitors do not give a full assurance of the machine’s condition. The indications shown on them should be used as a guide for daily check and periodic maintenance according to the operation and maintenance manual.

 

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1) Part Name

 

2) Function of Alarm Sensor
• All the lamps should go on for a few seconds when the starter switch is turned on.
• All the lamps should go off when the engine is running.
• The engine oil pressure and battery charge alarm lamps should go on when the engine is stopped.
• The buzzer should sound when a lamp goes on while the engine is running.

3) Alarm Sensor Operation
(1) Lube oil pressure drop monitoring (engine oil pressure switch)
When the engine oil pressure falls, the lamp goes on and the buzzer sounds.

The switch monitors the lube oil pressure drop of the engine and causes the engine oil pressure alarm lamp to go on and the alarm buzzer to sound.
Working pressure : 5.69 to 8.53 PSI (0.04 to 0.06 MPa)
Installation position : Engine block

When the alarm buzzer sounds, check the following items.
[1] Degeneration of engine oil
[2] Clogging of oil filter element
[3] Malfunction of engine oil pressure switch
[4] Malfunction of pressure control valve
[5] Wear or breakage of engine oil pressure pump

(2) Overheating sensor (water temperature switch)
The water temp. meter indicates the engine cooling water temperature.
The pointer should be within the white range while the engine is running.
If the pointer goes up to the red range, the engine is overheating.

Turned on : Cooling water temp. : 224.6 to 235.4°F (107 to 113°C)
Turned off : Cooling water temp. : 212°F (100°C) or less
Installation position : Cooling water pump on engine
When the alarm buzzer sounds, check the following items.
[1] Refer to Section “4. Engine” and “10. Troubleshooting”.
(3) Battery charge

When there occurs a potential difference between the output voltage of the alternator and the voltage of the battery, the lamp goes on and the buzzer sounds.

When the alarm buzzer sounds, check the following items.
[1] Degeneration or malfunction of battery.
[2] Refer to Section “7-1-4 Circuit Description of Engine Start and Stop, and Battery Charging”.

 

(4) Fuel gauge
When the starter switch is turned on, the fuel gauge starts to work to indicate the oil level in the fuel tank.
• It is normal for the fuel gauge to take some time to indicate the correct level after the starter switch is turned on.
• The remaining oil level indication can change depending on the inclination of the machine body.

 

Fuel gauge unit

(5) Hour meter
When the starter switch is turned on, the hour meter starts to work.

More repair cases for YANMAR,please refer to YANMAR Trouble Repair

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