T e c h n o l o g y , L L C
5
DAVCO Technology, LLC
www.davco.com
800-328-2611
1600 Woodland Drive, Saline, MI 48176-1629
DIESEL PRO
®
243
TECHNICAL MANUAL
F1215 REV H
Installation Location
The Diesel Pro must be installed between the fuel tank and
the fuel transfer pump . In some cases, the Diesel 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 .
•
Do not install the Diesel 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 replacement
(3 .5" minimum) .
•
The Diesel Pro
MUST
be installed so that the filter
element is above the “FULL” level of the fuel tank . If
mounted below full tank level, a shut off valve will be
required at the inlet to allow filter changes without
overflow of fuel .
E
The ignition key must be in the off position. To avoid
unintentional engine startup, use a lockout key and/or
signage to alert personnel that work is being per‑
formed. 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 . Drain and remove the primary fuel filter element assem‑
bly, sedimenter, and/or water separator . Dispose of it in
an environmentally responsible manner .
3 . Mount the Diesel Pro in the desired location using ⅜"
Grade 8 bolts .
Painting Precautions
The collar/cover joint and threads are designed to be free
of paint in order to function properly . The cover and collar
assembly must be completely masked off if the Diesel Pro is
to be painted .
Fuel Line Routing
To minimize fuel system restriction, observe the following
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 site, be sure that the
inner liner of the fuel hose is not cut by the fitting, which
can cause check valve performance issues . Make sure
hoses are clean and free of debris before installing .
•
To avoid damaging the aluminum Diesel 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 Diesel Pro inlet (labeled “FUEL IN” on the
housing)
2 . Route the fuel outlet line from the Diesel Pro outlet
(labeled “FUEL OUT” on the housing) to the inlet of the
fuel pump .
The inlet and outlet fittings can be moved from side to side
depending on the applications needs . (Example : FUEL IN
right and FUEL OUT right use only one inlet and one outlet
port per installation .
RIGHT SIDE
LEFT SIDE
FUEL IN
FUEL OUT
INSTALLATION INSTRUCTIONS
DIESEL PRO
®
243 TECHNICAL MANUAL
