Electrical System; Wires And Connectors; Battery; Keep Clean The Battery - Nanni N4.65 Operator's Manual

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 foloowing 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
N4.65
100 (Min) -120 (Best)
N4.80
100 (Min) -120 (Best)
72
A.h A
650-700
650-700