TOHATSU MFS 25C Owner's Manual page 34

34
PRE-OPERATING PREPARATIONS
ENOM00041-B
Warning indicators, faults and remedy
Sound
One beep
Continuous
*2
Continuous
Continuous
Intermittent
*2
short beep
Remarks
*1: In this case, oil pressure switch is "ON".
*2: It is necessary to stop the engine, if you want to stop the working indicators and re-set the warning
6
system.
High speed ESG (Electronic Safety Governor)
High speed ESG is a device to prevent over revolution of the engine. If the load to the engine becomes light for
some reason, it runs at a higher speed than the usual. In such the case, the buzzer sounds and the ESG is
activated not to ignite the spark plug, therefore, the engine speed varies and be controlled under 6300min
(rpm).
Low speed ESG
Low speed ESG is a device to prevent the engine from getting damage. If the engine has problems regarding
cooling water, oil pressure, and sensors, the low speed ESG is activated not to ignite the spark plug, and
disable fueling therefore, the engine speed varies and be controlled under 2800min
Warning indicators
Low
Lamp (LED) speed
ESG
On for 5 sec.
ON
*2 *2
ON ON
ON ON
*2 *2
Blinking ON
High
Description of faults
speed
ESG
Normal system test when start up
Engine speed exceeds maximum
ON
allowable RPM
Low oil pressure
Water over temperature
Water temp or MAP sensor out of
range
Remedy
1
2
*1
3
4
-1
-1
(rpm).