Maxum 4200 SY Sport Yacht, Owner'S Manual Supplement, Page: 56 / 96

Chapter 6: Plumbing
50
Seawater Systems
Seacocks
Thru-hull inlet or outlet fittings near or below the waterline fea-
ture seacock valves. You can close a seacock to stop water entry:
•
If the hose connected to the seacock fails, or;
•
To work on equipment served by the seacock.
Seacocks are used on your yacht in seawater intake or liquid-dis-
charge systems including, but not limited to:
•
Engines
•
Generator
•
Air conditioner
•
Marine head
Before using any system with a seacock, make sure the seacock is Open and stays Open until the system is shut Off.
Seawater Strainers
•
Seawater strainers are used to filter incoming seawater in some seawater intake systems. NOTE: Not all seawater
intake systems have seawater strainers.
•
If equipped, the seawater strainer is located near the seawater intake system’s seacock.
•
Check the strainers for leaks and/or debris every time you use your yacht.
•
Refer to the seawater strainer instruction sheet for cleaning and maintenance information.
FLOODING and SWAMPING HAZARD!
•
Close the seacock(s) when leaving your yacht unattended for any length of time.
•
If a seacock is left open, a hose failure could flood the bilge, swamp the batteries and the
engines, and even sink your yacht.
WARNI N G! !
SYSTEM DAMAGE HAZARD!
•
BEFORE using any system that has a seacock, make sure that the system’s seacock is Open.
•
Inspect and lubricate all seacocks annually.
CAUTI ON !
HULL
SEACOCK GASKET
SEACOCK
SEACOCK
LEVER
SECTION
SEACOCK & THRU-HULL
COMPONENTS (TYPICAL)
90 DEGREE
THRU-HULL INTAKE
STRAINER
FLOODING HAZARD!
•
BEFORE taking apart a seawater strainer for cleaning or other maintenance, Close the
seacock that sends seawater to that strainer.
•
Failure to close the seacock before taking apart the seawater strainer may allow large
amounts of water to flood the bilge, which could swamp the batteries and the engines, and
even sink your yacht.
•
Keep the seacock Closed until the seawater strainer is completely reassembled.
SYSTEM DAMAGE HAZARD!
•
After putting the seawater strainer back together, make sure that the seacock valve is Open
BEFORE using the component/system.
CAUTI ON !