36e Operator's Manual 2012.pdf - Marlow-Hunter, LLC

Fuel Systems
This is a safety feature of your boat, to ensure that the
generator never depletes the fuel to the engines.
5.4 Filters (Fuel Water Separators)
Generator
Pick-up
Engine pick-up
Fig.5.4
The fuel supplied to the engines or the generator (if so
equipped) may contact impurities found in the fuel tanks
or in the fuel from your supplier. If these impurities are
not removed prior to starting the engine or generator, performance
may be seriously affected. Removal of the fuel
impurities is accomplished by external fuel filters.
5.4.1 Main Engine Filters
5.3 Fuel Valves
Your boat has fuel shutoff valves located at the tank in the
supply line route. These valves are used to start or stop
the flow of fuel through the supply lines.
Note: Even if the fuel supply valves are closed, there may be
fuel in the supply lines to the filters and engines (or generator).
Disconnecting these fittings without properly bleeding the system
of fuel could result in emptying the fuel filters and causing a
fuel spill. Only a qualified technician should ever make repairs
to your fuel system.
The fuel supply valves are the “ball type” valves. Turning
the handle so it is perpendicular to the valve body shuts
off the supply or return. Turning the handle so it is in line
with the valve body opens the valve, as shown in Fig.
5.5.
Each engine/generator has a separate filter located
away from the engine. Check the Fuel Arrangement
illustration at the end of this chapter for the exact location
of these filters.
An authorized service technician should replace all filters
annually prior to spring launch. They may need more
frequent replacement if you notice poor engine/generator
performance due to contaminated fuel.
On the following page, Fig. 5.7, pg. 5.7, you will find an
illustration for the Racor Fuel Water separator (commonly
referred to as the fuel filter). This will break down the
components of the filter and their uses within the filter.
Main engine fuel filter
Example of Fuel Supply Lines and Valves
Flow of fuel.
Fig. 5.5
5.4.2 Generator Fuel Filter
Open
Closed
Rotating the handle 90° from the
fuel line, closes the valve.
Check your fuel system arrangement at the end of this
chapter for the location of the Generator Filter (tagged).
This is a fuel – water separator type filter.
5.5
To service the filter: