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Chapter 1: Welcome Aboard!
Trip Checklist
Make sure you know where the exhaust outlets are located on your boat.
Educate all passengers about the symptoms of CO poisoning and where CO may accumulate.
When docked, or rafted with another boat, be aware of exhaust emissions from the other boat.
Listen for any change in exhaust sound, which could mean an exhaust component failure.
Test the operation of each CO monitor by pressing the test button.
Monthly Checklist
Make sure all exhaust clamps are in place and secure.
Look for exhaust leaking from exhaust system components. Signs include rust and/or black streaking, water
leaks, or corroded or cracked fittings.
Inspect rubber exhaust hoses for burned, cracked, or deteriorated sections. All rubber hoses should be pliable and
free of kinks.
Annual Checklist - Have a Trained Marine Technician:
Replace exhaust hoses if cracking, charring, or deterioration is found.
Ensure that your engines and generators are properly tuned, and well maintained.
Inspect each water pump impeller and the water pump housing. Replace if worn. Make sure cooling systems are
in working condition.
Inspect all metallic exhaust components for cracking, rusting, leaking, or loosening. Make sure they check the
cylinder head gasket, exhaust manifold, water injection elbow, and the threaded adapter nipple between the man-
ifold and the elbow.
Clean, inspect, and confirm proper operation of the generator cooling water anti-siphon valve (if equipped).
CO Monitor
• The stereo memory and the CO monitor place a small, but constant drain on the battery.
• If your boat will be unattended for an extended amount of time, plug into shore power (if
equipped) with the battery charger turned On.
• Do not disconnect the CO monitor.
• Read the manufacturer's instructions for your CO monitor. If you did not get the manufacturer's instructions,
call (800) 383-0269 and they will be mailed to you.
• If your boat is not equipped with a CO monitor, consider purchasing one from your dealer or marine supply store.
More Information
For more information about preventing CO poisoning on recreational boats and other boating safety tips, contact:
United States Coast Guard
Office of Boating Safety (G-OPB-3)
2100 Second Street SW
Washington, DC 20593
www.uscgboating.org
1-800-368-5647
For information about free VESSEL SAFETY CHECKs, visit www.vesselsafetycheck.org or contact your local U.S.
Coast Guard Auxiliary or United States Power Squadrons®.
• U.S. Coast Guard Auxiliary: 1-800-368-5647 or on the Internet at: http://www.cgaux.org
• U.S. Power Squadrons: 1-888-FOR-USPS (1-888-367-8777) or on the Internet at: http://www.usps.org
8
N O T I C E
National Marine Manufacturers
Association (NMMA)
200 East Randolph Drive
Suite 5100
Chicago, IL 60601-9301
www.nmma.org
312-946-6200
Discovery 266 • Owner's Manual Supplement
American Boat & Yacht Council,
Inc. (ABYC)
3069 Solomon's Island Road
Edgewater, MD 21037-1416
www.abycinc.org
410-956-1050
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