Volvo MD2020 Instruction Manual download pdf (Page 36)

Electrical system

WARNING! Always stop the engine and break the current using the main switches before working on the

electrical system. Isolate shore current to the engine block heater, battery charger, or accessories mounted

on the engine.

Main switch

The main switch must never be turned off before the

engine has stopped. If the circuit between the

generator and the battery is cut off when the engine is

running the generator can be seriously damaged. For

the same reason charging circuits must never be

switched over while the engine is running.

Fuses

The engine has a fuse holder with four 15 A fuses.

This is located on the relay box to the left at the rear

of the engine. One fuse protects the system and cuts

power in the event of an overload, the others are

spares.

If a fuse blows the system can be reconnected by

moving the cable to the next fuse. Always investigate

the cause of an overload before resetting the fuse!

IMPORTANT! Make sure that you always have

spare fuses on board.

Electrical connections

Also check that all electrical connections are dry and

free of oxidation and that there are no loose connec-

tions. If necessary, spray these connections with a

water-repellent spray (Volvo Penta Universal oil).

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Volvo MD2020 Instruction Manual Page 36