Visual Diagnostics With Clear Cover - Davco fuel pro 382 Technical Manual

T e c h n o l o g y , L L C
Fuel level is not at the top of the fuel
filter .
ÎNormal - Do not change the filter .
Fuel level is at the top of the filter and
appears to be full of wax .
ÎChange the filter - Run the engine for
a minimum of 25 minutes at idle . Do not
run at full RPM .
Bubbles are seen flowing in with the fuel .
ÎCheck all fittings and lines from the
fuel tank to the fuel processor . Check
lower and upper collar o-rings .
Fuel drains back to the fuel tank when
changing the fuel filter or draining sepa-
rator .
ÎRemove the check valve assembly .
Clean or replace and retest . Check air
leaks in the fuel system .
DAVCO Technology, LLC

VISUAL DIAGNOSTICS WITH CLEAR COVER

P. O. Box 487 Saline, MI 48176
TECHNICAL MANUAL
Fuel level is at the top of the filter . Low
power .
ÎChange the filter at the first available
opportunity .
There is a power complaint and the fuel
level is below the collar .
ÎCheck for a missing grommet at the
lower end of the filter or missing/broken
spring at top of filter .
Water is noticed in the cover .
ÎDrain the water . If engine coolant is
visible, follow proper engine pressure
testing procedures to determine root
cause .
No engine coolant flow to the Fuel Pro
heater .
ÎCheck for closed cutoff valves at the
coolant lines to the fuel processor . Make
sure the cab heater valve is open .
Call 800-328-2611
13
FUEL PRO
®
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October 3, 2016 11:34 AM
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