Sea Ray 175 Sport Owner's Manual download pdf (Page 68)

6.5

SECTION 6 • ELECTRICAL SYSTEM

175 Sport

SURFACE MOUNTED LIGHTING

(FIG. 6.5.1)

4. LIGHTING

Your boat is equipped with 12 volt navigation lights.

Always replace a bulb using the type and

wattage of the original bulb.

MAST NAV.

LIGHT

BOW NAV. LIGHT

BULB REPLACEMENT

BULB# GE2641L

12V R 10W

DO NOT PAINT BETWEEN THE ZINC AND THE METAL

IT CONTACTS, AND DO NOT PAINT OVER THE ZINC.

NOTICE

5. ELECTROLYTIC CORROSION AND

ZINC ANODES

Electrolytic corrosion of metals on power boats can

result in rapid and serious deterioration of metal

parts. You must set a regular schedule and look for

the possibility of electrolytic corrosion (the

deterioration of metals due to dissimilar

characteristics when placed in salt water). It is your

responsibility to check for and replace parts

damaged due to electrolytic corrosion.

To minimize electrolytic corrosion of the metals on

your boat, zinc anode plates are provided to protect

underwater hardware. Zinc, being much less “noble”

than the copper-based alloys and aluminum used

in underwater fittings, will deteriorate first and

protect the other metals.

Stern drives are fitted with zinc anodes on their

lower units (refer to your Engine Owner’s Manual

for their locations). If your boat is equipped with

trim tabs, zinc plates are installed on each of the

trim tabs. If the boat is equipped with a Mercathode

the stern drive will not have a zinc anode.

Zinc anodes require replacement about every six

months if the boat is operated in salt water for

extended periods of time. In fresh water, the zinc

anodes can be replaced about once a year.

BULB REPLACEMENT

ML906

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Sea Ray 175 Sport Owner's Manual Page 68

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