Installation Manual

PureFlow AirDog®

AirDog® FP-100 & FP-150 1998.5-2004 Cummins Diesel

Section 6-C Fuel lines (Return Line to Tank)

AirDog

Fuel Return Line

Installing the fuel 'Return to Tank' assembly in Filler Tube

6C-1. Cut filler tube as illustrated in figure 25, removing 1/2 inch of hose. Loose assemble the

clamps on each end of filler tube before the filler tube is pushed in.

6C-2. Insert the “Return Fuel Filler Tube” assembly (P/N 001-4A-1-0150) in the filler tube.

INSTALL THE FILLER TUBE WITH ARROWS, WHICH ARE STAMPED IN THE PART,

POINTING TOWARD THE TANK!! SEE FIG 26. Properly tighten clamps.

6C-3. Assemble one end of the hose (Reference section 5) using Fuel line end FQC1290 and

plug it into the “Return” J2044 fitting installed in the AirDog® (Figure 28). A “click” will

be heard once the fitting is properly connected.

6C-4. Run the fuel line along the frame as mentioned in step 5-3 to the filler neck tee. Cut the

fuel line to length and insert fuel line end FQC12S per step 5-1. Once the connector is

installed, connect it to the male J2044 fitting in the filler neck tee (001-4A-1-0150). A

“click” will be heard once properly connected.

HS20

Fuel Tank

Hose Clamp

Filler

Tube

Fuel

Return

Fitting

Figure 25

Figure 27

Figure 26

Towards

Tank

Figure 28

FQC1290

HS20

FQC12S

HS20

Figure 29