MMD Equipment 400S-6B1 - Manual (Page 49)

5. Periodic Inspection/Maintenance
5-10
5.5.9 Check battery electrolyte and specific gravity of battery electrolyte
[Battery electrolyte : every 250 hours]
[Specific gravity of battery electrolyte : every 500 hours]
If there to be a problem in starting an engine due to a flat battery, carry out the checks by following
the procedures below:
1.Ordinary type battery:
Measure specific gravity of battery electrolyte, and if it shows below 1.24, recharge the battery
immediately. (See 6.1)
2.Enclosed type battery:
Check the indicator on top surface of the battery.
If the indicator shows that charge is needed, recharge the battery immediately.
5.5.10 Check wiring of each part
[Every 500 hours]
Check each wiring for any loose connection, damage, disconnection, and short circuit.
5.5.11 Clean outside of radiator
[Every 500 hours]
When the fin tubes“2”of radiator“1”are
clogged by dust or other foreign materials,
the heat exchange efficiency drops and
this will raise coolant temperature. These
tubes and fins should be cleaned
depending on the state of dirt inside the
tubes even before maintenance schedule.
Do not use high pressure washer for
washing to prevent fin tubes“2”from being
damaged.
When the unit is used, installed near
seaside and on boat board, clean the
radiator using fresh water more times
than once a month.
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