Active Corrosion Protection System; (Sx-A/Dps-A Only) - Volvo 5.0OSiE-J Operator's Manual

Active Corrosion Protection System (SX-A/DPS-A Only)
Your boat may be equipped with a Volvo Penta active corrosion protection system (APCS). This system operates
with very little current drain from the boat's electrical system. It keeps the voltage potential in the area around the
drive unit in a range that is not corrosive to aluminum. (This is accomplished by changing the charge of water
molecules so that they do not remove electrons from the drive unit's metal parts to cause corrosion.) If you do not
have an active corrosion protection system already installed, you may purchase one from your authorized Volvo
Penta dealer.
NOTICE! ACPS is designed for salt water applications only; using the system in fresh water–while harmless–will
not protect your sterndrive from corrosion. If you will be operating your boat in fresh water exclusively,
you must install magnesium anodes to adequately protect your sterndrive.
The protection system's control box has both red and green LED indicator lights (A). The lights will indicate the
amount of protection that the unit is providing to protect the sterndrive and transom shield. The ACP system is
designed to protect one sterndrive and transom shield assembly. If copper based antifouling paint is used or the
drive is installed on a metal hull, the unit may be inadequate to protect the drive and transom shield.
VPA 7748131 English 09-2007
22251
22863-1
1. The green LED (1) indicates the unit is ade-
quately protected.
2. If the green and red LEDs (2: see next page) are
illuminated, the drive is protected but the system
is drawing power (between 3 to 150 mA) to pro-
tect the drive unit. Check the following conditions
and solutions.
Water too severely contaminated or polluted.
Install additional anode on the transom and
bond to the grounding system.
Too much unpainted metal on the drive or
transom shield. Clean and paint exposed
metal on drive and transom shield. Please re-
fer to the section entitled Painting the Drive
(SX-A/DPS-A Only) on page 100 and Propel-
ler Care on page 102 for paint repair proce-
dures.
Corroded, missing, or painted anodes. Serv-
ice or replace anode as required.
Stray current from shore power or surround-
ing boats. Disconnect shore power, wait 8
hours and recheck. If still present, temporarily
relocate boat to another area away from the
marina and check again.
Maintenance
97