INSTALLATION INSTRUCTIONS
Installation Location
The Fuel Pro must be installed between the fuel tank and
the fuel transfer pump . In some cases, the Fuel Pro can be
used as the only fuel filter in the system . This is generally
dependent on the engine model year . Consult the engine
manufacturer for their recommendation . If the Fuel Pro can
be used as a single filter, DAVCO offers a diverter cap to
replace the secondary filter . (See diverter cap installation
section)
Mounting the Fuel Pro
Mount the Fuel Pro keeping the following points in
mind:
• Do not install the Fuel Pro directly on the engine .
• Mount vertically with the cover and element pointing
up .
• Make sure there is enough top and side clearance for
the cover to be conveniently removed for filter replace-
ment .
• The Fuel Pro MUST be installed so that the Filter Ele-
ment is above the "FULL" level of the fuel tank .
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The ignition key must be in the off position, unless
otherwise directed. To avoid unintentional engine
startup, use a lockout key and/or signage to alert
personnel that work is being performed. Chock the
wheels.
1 . With the engine shut down and at ambient temperature,
close the fuel shutoff valve (if equipped) and place a
suitable container under the fuel filters .
2 . Remove the primary fuel filter element assembly, sedi-
menter, and/or water separator . Drain the used element
and dispose of it in an environmentally responsible
manner, according to state and/or federal (EPA) recom-
mendations .
Fuel Line Routing
To minimize fuel system restriction, observe the follow-
ing guidelines when plumbing the fuel system:
• Keep the fuel line routing as smooth as possible with
no low-hanging loops which can trap water .
• Use 90° elbows only when necessary .
• If the fuel hoses are cut to length on the job, be sure
that the inner liner of the fuel hose is not cut by the fit-
ting, which can cause check valve performance issues .
Make sure hoses are clean and free of debris before
installing .
• To avoid damaging the aluminum Fuel Pro body, do not
overtighten fuel lines or fuel line fittings .
1 . Route the fuel supply line from the pick up on the fuel
tank to the Fuel Pro inlet (labeled “Fuel In”) .
2 . Route the fuel outlet line from the Fuel Pro outlet (la-
beled “Fuel Out”) to the inlet of the fuel pump .
Priming the Fuel System
1 . Check to make sure the drain valve at the base of the
Fuel Pro is closed .
2 . Remove the vent cap from the top of the clear cover .
Fill the Fuel Pro full with clean fuel . Reinstall the vent
cap . Tighten the vent cap by hand until it clicks .
3 . Start the engine . When the lubrication system reaches
its normal operating pressure, increase engine RPM to
high idle for one to two minutes . After the air is purged
loosen the vent cap until the fuel level lowers to just
above the collar . Tighten the vent cap by hand until it
clicks .
4 . Tightening the collar with the wrench—simultaneously
apply downward pressure to the top of the clear cover
until it is seated on the body of the Fuel Pro and hand
tighten the collar until it no longer spins freely . Torque
the cover assembly by rotating the collar clockwise
three additional ribs using the collar wrench (~18 ft-lbs) .
Note:
The clear filter cover will not fill completely during
engine operation . It will gradually fill over time and the fuel
level will rise as the filter becomes contaminated .
FUEL PRO
®
382
TECHNICAL MANUAL
T e c h n o l o g y , L L C
DAVCO Technology, LLC P. O. Box 487 Saline, MI 48176 Call 800-328-2611 www.davco.com F1271 REV J
October 3, 2016 11:34 AM
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