20 Chapter 2: Components/Systems
37OO SCR Sport Yacht
•
Owner’s Manual Supplement
Fuel Filters & Separators
Fuel filters and separators should be inspected periodically for debris and replaced according to the guidelines and
instructions detailed in your engine manual, (optional) generator manual and in the filter literature.
Fuel Transfer Pump
If your yacht is diesel powered, it is equipped with a fuel transfer pump. The fuel transfer pump is activated by a
switch at the helm and is used to draw fuel from a full tank to a nearly empty tank.
Anti-siphon Valve
If your yacht is gas-powered, it may be equipped with an anti-siphon valve. An anti-siphon valve is an integral part of
the gas fuel line barb fitting on each fuel tank. These valves are spring loaded and are opened by fuel pump vacuum.
In the unlikely event of a fuel line rupturing, the valve would prevent fuel from siphoning from the tank.
Fuel System Diagrams
ENVIRONMENTAL HAZARD! NEVER transfer fuel into a full (or nearly full) fuel tank. Fuel
transferred into a full tank may spill overboard through the tank venting system.
CAUTI O N!
!
FIRE & EXPLOSION HAZARD! If an engine problem is caused by fuel starvation,
check the anti-siphon valve. If the valve is stuck or clogged, shut down the engine and
replace it. Except in a crisis, never operate the engines without the anti-siphon valve.
WARNI NG!
!
SENDER
FUEL FILL
VENT
PORT ENG. PICKUP
GEN.
FUEL
FILTER
PORT ENG. RETURN
SENDER
FUEL FILL
VENT
STBD ENG. PICKUP
STBD. ENG. RETURN
GENERATOR PICKUP
GENERATOR RETURN
FUEL SHUT-OFF VALVE
FUEL SHUT-OFF VALVE
FUEL SHUT-OFF VALVE
PORT FUEL TANK
STARBOARD FUEL TANK
PORT
STARBOARD
ENGINE
ENGINE
SENDER
FUEL FILL
VENT
PORT ENG. PICKUP
PORT
GEN.
FUEL
FILTER
PORT ENG. RETURN
SENDER
FUEL FILL
VENT
STBD. ENG. PICKUP
STBD. ENG. RETURN
GENERATOR PICKUP
GENERATOR RETURN
FUEL
FILTER
STARBOARD
FUEL
FILTER
ENGINE
ENGINE
FUEL SHUT-OFF VALVE
FUEL SHUT-OFF VALVE
FUEL SHUT-OFF VALVE
PORT FUEL TANK
STARBOARD FUEL TANK
DIESEL ENGINES WITH OPTIONAL GENERATOR
GAS ENGINES WITH OPTIONAL GENERATOR
Summary of Contents for 3700 SCR
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Page 6: ......
Page 42: ...36 Appendix B Wiring Schematics 37OO SCR Sport Yacht Owner s Manual Supplement Deck Harness...
Page 49: ...Owner s Notes...
Page 50: ...Owner s Notes...
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Page 52: ...Part Number 1706480 Rev A Maxum Marine P O Box 6050 Arlington WA 98223 6050 360 435 6534...