73
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.
S08
MAINTENANCE
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 (-) first.
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
T6.420TDI
150 (Min) -180 (Best)
900-1000
T6.280-300
150 (Min) -180 (Best)
900-1000
Z6.300
150 (Min) -180 (Best)
900-1000
Summary of Contents for T6.280
Page 1: ...NANNI MARINE ENGINE OPERATOR MANUAL DGBXXT09010 ENGINE 6 420TDI T6 280 T6 300 Z6 300...
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Page 39: ...39 S06 COMPONENTS ENGINES VIEWS 6 420TDI T6 280 T6 300...
Page 40: ...40 S06 COMPONENTS ENGINE VIEW Z6 300 1...
Page 77: ...77 NOTES...
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