Initial start procedure, Checking pump noise, Pureflow airdog airdog – PureFlow AirDog FP-150 - 7.3L Ford 1999-2003 User Manual

Page 21

PureFlow AirDog

AirDog

FP-100 & FP-150 Ford PowerStroke 1999 – 2003 7.3L

Section 7 Initial Startup Procedures

INITIAL START PROCEDURE

The AirDog

is a self priming system, however, to prevent potential damage and reduce the

life expectancy of the system, it is recommended to pre-fill only the water separator with
diesel fuel before initial startup.

7-1.

Pre-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 fuel line to the engine of air 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 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 wet tested

for operation and performance before shipment. This is a very quiet and smooth running
system. With fuel or air alone, the AirDog® fuel pump will run very quietly. However, if any
fuel fitting on the vacuum side, between the fuel tank and the AirDog

or the water separator,

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 water separator 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 water separator seal is most likely
the reason for the excessive noise. Correct as necessary.

The seal groove in the 3” filter is a snug fit and on occasion the seal has been found

to not be fully seated. Remove the water separator, remove the seal from the top of

the nut plate. Clean and lubricate the seal grove. Carefully replace the seal in the

grove. Be sure to fully seat the seal.

Check all fittings, especially the quick connect at the tank.

This manual is related to the following products:

FP-100 - 7.3L Ford 1999-2003