Initial start procedure, Checking pump noise, Pureflow airdog airdog – PureFlow AirDog FP-150 - GM Duramax 2001-2010 User Manual
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PureFlow AirDog
AirDog
®
FP-100 & FP-150 2001-2010 DuraMax Diesel
Section 7 Initial Startup Procedures
INITIAL START PROCEDURE
The AirDog
®
is a self priming system, however, to prevent potential damage to the system, it is
recommended to fill the pre-filter with diesel fuel before initial startup.
7-1.
Fill the water separator with diesel fuel.
7-2.
Turn the starter key to the on/run position.
7-3.
While the AirDog
®
is operating, bleed the air from the fuel line to the engine by
loosening the fuel line connection at the engine fitting. As soon as the line is purged of
air and pure fuel is observed, properly tighten the fuel fitting.
NOTE: put a rag or shop
towel over and around fitting to prevent splatter. Catch all spilled fuel and dispose of
properly.
7-4.
Start the engine!
RECHECK ALL FUEL FITTINGS FOR LEAKAGE AND PROPERLY TORQUE. BE
SURE ALL FUEL LINES ARE PROPERLY ROUTED TO PROTECT FROM
EXCESSIVE HEAT AND SECURED TO PROTECT FROM CHAFFING AND
ABRASION. RECHECK ALL ELECTRICAL LINES, SECURE AS NECESSARY.
Checking Pump Noise!
NOTE: Each AirDog
®
has been manufactured in a Quality Controlled process and fully tested
for operation and performance before shipment. This is a very quiet and smooth running
system. However, if any fuel fitting on the vacuum side, between the fuel tank and the AirDog
®
or the pre-filter, has been left loose during the installation process, the system may suck air at
an excessive rate and will be very noisy. To check for this problem, unscrew the pre-filter 3 or
4 full turns and activate the AirDog
®
by turning the ignition switch to on. If the AirDog
®
runs
quietly, then excessive air from a loose fitting or leaking pre-filter seal is most likely the reason
for the excessive noise. Correct as necessary.
A.
The seal groove in the pre-filter is a snug fit and on occasion the seal has been found
to not be fully seated. Remove the pre-filter, remove the seal from the top of the nut
plate. Clean and lubricate the seal groove. Carefully replace the seal in the groove.
Be
sure to fully seat the seal.
B.
Check the fittings, especially the quick connect at the tank.
Additionally, as the brushes wear in the noise level will diminish and the pump becomes very
quiet!