Operating Hour Notification System - TOHATSU BFT75A Service Manual

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1. Lubricate more frequently when used in salt water.
2. For professional commercial use, log hours of operation to determine proper maintenance intervals.
3. When operating in salt water, turbid or muddy water, the engine should be flushed with clean water after each use.
4. Upon starting, check for unusual engine sounds and cooling water flowing freely from the check hole.
5. Replace the anodes when they have been reduced to about two-thirds of their original size, or if they are crumbling.
6. Except LRTA/XRTA/LRTC/XRTC type: The user who performs shift operation frequently will recommend you exchange of a
shift cable around three years.
7. Check the fuel line for leaks, cracks, or damage. Replace the fuel line if there are signs of leaks, cracks, or damage.

OPERATING HOUR NOTIFICATION SYSTEM

This ECM counts the number of operating hours since the last periodic maintenance. When the next periodic maintenance is due,
the engine notifies the NMEA 2000 network, and a maintenance indication is displayed on an NMEA 2000-compatible device. To
maintain the operating hours correctly, the operating hour counter must be reset every time after each periodic maintenance is
performed.
Periodic maintenance is required when either the operating hours or the time since last maintenance reaches the prescribed limit.
Therefore, periodic maintenance may be required based on the number of months since the last maintenance before the alert
based on engine operating hours displays.
• The operating hours are notified by the function of the notification system.
• The period (the number of months since the last maintenance) cannot be notified by the system.
Reset the hour counter whenever maintenance is performed, whether based on the time interval or the number of operating hours.
Operating hour notification timing:
Start of
operation
OPERATING HOUR COUNTER RESET PROCEDURE
• Before performing the reset procedure, be sure to stop the engine.
1. Put the shift lever in "F" (Forward) or "R" (Reverse).
2. Turn the combination switch ON. The buzzer will sound once.
3. Press the emergency stop switch 5 times within 20 seconds. The buzzer will sound once when the hour counter is reset.
• When replacing the ECM, perform the reset procedure necessary the number of times according to the total operating hours at
the time of replacement, or adjust the operating hour notification timing.
• When installing the NMEA 2000 display later, perform the reset procedure the necessary number of times according to the total
operating hours at the time of installation, or adjust the operating hour notification timing.
OPERATING HOUR NOTIFICATION TIMING ADJUSTMENT
The operating hour notification timing can be adjusted from the maintenance notification setting of Dr. H. The following information
recorded in the ECM can be checked from the Data list.
• The total operating hours since the last reset
• The total operation hours when the next notification will be done
• The total number of times the reset is performed
Example:
When replacing the ECM within 20 hours of operation
• Set the remaining operating hours to the first periodic maintenance
When replacing the ECM after spending 20 hours or more
1. Reset the operating hours once.
2. Adjust the operating hours to the next periodic maintenance.
20 hours 80 hours after
first reset
Notify
Notify
Every 100 hours
100 hours after
second reset
Notify
MAINTENANCE
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