Electrical System; Battery Cables - Volvo Penta DPX 500 Instruction Book

5. Clean up any spilled fuel.
6. Run the bilge blower for at least five minutes to vent the engine compartment, then start the engine and check for
leakage.
7. Smell for fuel in the bilge.
IF YOU CAN SMELL FUEL, TURN THE ENGINE OFF IMMEDIATELY — EXPLOSION AND
FIRE ARE AN EXTREME DANGER.
8. Clean up the bilge until fuel cannot be detected by smell.
Note: A loud whining noise at idle may be due to a restricted fuel filter causing a noisy fuel pump. Operating the
engine with a restricted filter may damage the pressure regulator or fuel pumps. See your Volvo Penta dealer if the
pump makes an unusual noise.
IF YOU CAN SMELL FUEL, TURN THE ENGINE OFF IMMEDIATELY — EXPLOSION AND
FIRE ARE AN EXTREME DANGER.
9. Clean up the bilge until fuel cannot be detected by smell.

Electrical system______________________________________________________________

The engine's electrical system features cranking, charging, ignition and trim/tilt circuits. A battery and all necessary
wiring provide power.
If electrical connections are reversed, or wires are disconnected when the key switch is ON or the engine is
running, sensitive electrical components may be immediately damaged. Do not turn off the main battery
switch until the engine has stopped.

Battery cables

The following are the minimum specifications for stranded copper cables from the motor to the battery for all models.
The maximum length is 20 feet regardless of cable diameter.
•
0 to 10 ft. (3.05 m) require a 1/0 AWG (80 MWG) cable
•
10 to 15 ft. (3.05 to 4.6 m) require a 2/0 AWG (100 MWG) cable
•
15 to 20 ft. (4.6 to 6.1 m) require a 3/0 AWG (120 MWG) cable
1. Do not use aluminum core battery cables.
Failure to use battery cables of recommended gauge and material could result in poor starting and electrical
component damage.
39