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S08 MAINTENANCE
ELECTRICAL SYSTEM
DANGER !
Stop the engine and switch off the main breaker before
working on the electrical system. Isolate shore current
to any accessories supplying the engine.
CAUTION !
The main breaker switch must remain ON when the
engine is operating. Never disconnect the cable
between the alternator and the battery when the engine
is running.
WIRES AND CONNECTORS
Check that electrical wires and connectors are dry and
in good condition. Replace any defective part. Do not
scrape green deposits on lugs in using grit : nickel plating
would be removed and bare copper would corrode even
faster.Tighten time to time all terminals secured by
screws. Do not forget breakers in the electrical cabinet.
BATTERY
DANGER !
Disconnect the battery cables before contemplating any
kind of soldering work. Arc welding is a carrier of heavy
transients currents and may affect (or destroy) many
sensitive electronic components such as the E.C.U.
Read below recommendations before
operating or servicing the battery.
To charge two independent batteries with a single
alternator, an isolator is available as an option on most
engines. Contact an authorized Nanni representative.
KEEP CLEAN THE BATTERY
the Battery(ies) should be kept clean and dry. Oxidization
deposits on the battery and on terminals posts may lead
to a wide variety of disturbances like : dead shorts,
voltage drops, premature discharging, notably in wet or
cold weather. In some occurances, these disturbances
may be hard to locate. Use a brass brush to clean battery
terminals posts.
DISCONNECT THE STARTER CABLES
1. Disconnect the negative cable (-) rst.
2. Then remove the positive (+) cable.
If the battery is replaced, make sure that the previous
one was the correct model. Check against the table
below:
Engine Nominal Capacity (K20) Cold Test Icc
A.h A
T8V.320
100 (Min) -150 (Best) 900-1000
T8V.350
100 (Min) -150 (Best) 900-1000
T8V.370
100 (Min) -150 (Best) 900-1000
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