TOHATSU MFS 15E Series User Manual

PRE-OPERATING PREPARATIONS 31
6
ENOM00041-B
Warning indicators, faults and remedy
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
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 is reduced 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 6300 min
-1
(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 2800 min
-1
(rpm).
Warning indicators
Description of faults Remedy
Sound Lamp (LED)
Low
speed
ESG
High
speed
ESG
One beep On for 5 sec. Normal system test when start up
Continuous ON ON
Engine speed exceeds maximum
allowable RPM
1
Continuous
*2
ON
*2
ON
*2
Low oil pressure
*1
2
Continuous ON ON Water over temperature
3
Intermittent
short beep
*2
Blinking
*2
ON
*2
Water temp or MAP sensor out of
range
4
Remedy
1. Reduce the throttle to less than half
opening, and move to safe place
quickly, and stop the engine.
Check the propeller for bent or dam-
aged blades.
Consult an authorized dealer if engine
shows the same result even after
replacing propeller with new one.
2. Move to safe place quickly, and stop
the engine.
Check the engine oil level, and add
engine oil if necessary.
Consult your dealer if the engine oil
level is too low or too high.
3. Move to safe place quickly, and check
the discharge of cooling water from
the water check port at idle speed
and stop engine.
Remove any foreign matter on the
gear case and propeller if necessary.
Consult an authorized dealer if no
discharge of cooling water.
4. Consult an authorized dealer.
ENOW00025-B
z Low speed ESG ON: Engine speed will be
limited under 2800 min
-1
(rpm), however
you should not continue to run engine.
z High speed ESG ON: Engine speed will be
limited to 6300 min
-1
(rpm) and engine
will run rough until throttle is reduced.
CAUTION

TOHATSU MFS 15E Series Specifications

General

Brand	TOHATSU
Model	MFS 15E Series
Category	Outboard Motor
Language	English