Nanni N4.140 - Page 75

75
S08 MAINTENANCE
FUSES
The engine electrical system is protected from electrical
overloads by fuses. Fuses and relays are located in the
electrical loom.
If the engine does not start or if the instruments panel does
not operate, a fault might be somewhere in the electrical
system and a fuse may have blown up.
Investigate the cause before replacing the faulty fuse
straight away. Keep an assortment of spare fuses on hand.
Replace a fuse with one of the same rating.
CAUTION !
If the replaced fuse blows again, the failure is larger than
a simple incident. If you are still at shore, do not start
the engine, and check first on your on in taking all usual
precautions. If the fault is not resolved quickly, contact
your nearest Nanni representative for repair.
If you are at open sea, try to locate the fault and to repair
by yourself. Depending of the severity of the fault and
if the event is endangering navigation, establish a radio
contact to get help. Take steps as advised.
Fuses:
Item Fuse Type N4.115 N4.140
Glow Plugs Relay Mini F1 15 A 15 A
Control Panel Mini F2 10 A 10 A
Stop Relay Mini F3 15 A 15 A
Glow Plugs ATO F4 40 A 40 A
Mini fuses and ATO fuses:
The engine fuses look like this.
Mini ATO
Location of fuses:
Fuses F1, F2, F3, are located in a dedicated box on the
wiring harness:
Fuse box
Fuse adapter
Fuse F4 is located in the box containing the glow plugs
and start relays at the end of the harness:
Relays
Fuse F4
Fuse and relay box
Location of fuses and relays boxes