Airdog DETROIT 60 Series User manual

INDUSTRIAL
Fuel Air Separation System
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INSTALLATION MANUAL
DETROIT SERIES 60®ENGINES
Model Years 2003 - 2009
Part No. A3SPBT403
NOW WITH DEMAND FLOW
Providing “Test Cell Performance” in “Real World Conditions” Since 1993!
Proudly Made in the USA
www.airdogdiesel.com
1-573-635-0555 or
1-877-463-4373
PLEASE READ
THESE INSTRUCTIONS
THOROUGHLY
BEFORE BEGINNING
INSTALLATION
Revised 8/05/2020

THE RIGHT CHOICE FOR YOUR DIESEL ENGINE
CARB Executive Orders D-595-3 & D-595U-4 permit the advertisement, sales and installation of
PureFlow Technologies AirDog®Diesel Fuel Systems in California on 2016 and older model year
on-road diesel vehicles and o-road diesel vehicles/equipment.
Low Fuel Pressure Switch
and LED Indicator
Lets you know when to service
the fuel lter and water separator
before suering power loss.
NO MORE GUESSING!
4G-HD Fuel Pump
Pump shaft, stabilized with bearings on each end, holds the gerotor in virtually perfect
alignment for quiet running and extended longevity!
LoveJoy Coupler System
The LoveJoy Coupler System is
self-aligning and eliminates
virtually all vibrations.
Dual Port Pump
Balances the gerotor for quiet
operation and higher ows.
Protective Wire Screen
In water separator nipple.
6 Micron Particulate Filters
Long-Lasting MicroGlass Media
Water Separator/Prelter
Long-Lasting Wire Mesh Media
Bearings
Positive Air Separation
with primary air discharge port.
Demand Flow System
Easy installation, only one small line
connected to the engine return line to
return air/vapor to the tank.
Adjustable Regulator
For just the right fuel pressure.
INDUSTRIAL
Fuel Air Separation System

3
SYSTEM OVERVIEW
Welcome to the AirDog®Heavy Duty Industrial
Fuel Air Separation System for Class 8 Trucks
The AirDog®, with ADVANCED FUEL AIR SEPARATION, DEMAND FLOW, ADJUSTABLE
REGULATOR, LOW PRESSURE SENSOR with LED INDICATOR and the 4G-HD FUEL
PUMP, is a premium fuel ltration and delivery system for the Detroit Diesel Series 60®engine,
model years 2003 thru 2009.
Specically, if the fuel pressure/ow to the injector, even with entrained air and vapor
removed, is insucient to totally ll the injector barrel on the up stroke of the plunger, a void
or low pressure will form that allows vapor to re-form within the injector. The result, “injector
lag”, is just another name for “delayed injection timing”. No matter what term is used, it leaves
the engine with increased fuel consumption, lost power, and increased exhaust emissions.
The Detroit Diesel Series 60® engine, model years 2003 thru 2009, utilizes “FOR-SEAL” ttings
with steel lines on the high pressure side of the transfer pump. These ttings have small passageways
and are restrictive to the fuel ow to the engine. To maximize the eciency of the 2003 THRU 2009
Series 60® engine, it is necessary to replace the restrictive fuel ttings and lines with the larger and
less restrictive lines & ttings.
The “UPGRADE” kit is NOT included with the Detroit installation kit, although the complete
and detailed instructions are included.
Contact PureFlow®Technologies at 1.573.635.0555 for additional information and ordering.
All AirDog®products are manufactured with a personal touch,
unsurpassed attention to detail, and the most stringent quality assurance!
TYPICAL INSTALLATION LAYOUT
The AirDog® requires only one small return line connected to the engine return line, for quick
and easy installations.
Pure Fuel to Engine
at Positive Pressure
Air/Vapor Return Line
Fuel Supply Line
Entrained Air in Fuel
from Agitation & Sloshing
Fuel Preporator®
Transfer Pump

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AirDog®FPII-150 Detroit Series 60 2003-09
TABLE OF CONTENTS
Section 1……..….….…...........……................................…...…….....Table of Contents
Section 2…….........….………………….....................Installation and Safety Guidelines
Section 3……..……...…..……….….…..............….…………………...….….Parts List
Installation Procedures
Section 4…....…...................................................Selecting the Best Mounting Location
Section 5……….…................................................Mounting the AirDog® & Bracket Kit
Fuel Lines, Fittings & Low Fuel Pressure Sensor
Section 6A........................................................................Fittings & Fuel Pressure Sensor
Section 6B……..…...…...........................………........Fuel Line from AirDog®to Engine
Section 6C….….….......…..................................................AirDog®Fuel Return to Tank
Section 6D…............…….....……..........………………………..From Tank to AirDog®
OPTIONAL Fuel System Upgrade (Sold as Separate Kit, Not Included)
Section 7A......................................................Engines Without a Secondary Fuel Filter
Section 7B...........................................................Engines With a Secondary Fuel Filter
Section 8….....……....................…..……....………….….………....…..Wiring Harness
Section 9..……......….…...............….…..….................….………...……Initial Start Up
Maintenance
Section 10.……….........................…............…..............................………Filter Service
Section 1 Table of Contents

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AirDog®FPII-150 Detroit Series 60 2003-09
Section 2 Installation & Safety Guidelines
The installation of your AirDog®can be made relatively easy by following the steps outlined in this
manual, and:
1. Inventory the package components. Immediately notify PureFlow® Technologies, Inc.,
of any missing or damaged parts.
2. Read the installation manual completely. Understand how the system operates and the
installation recommendations before beginning.
3. Proper location of the AirDog® on the vehicle is essential. Consider hazards presented to
the equipment by road debris and the elements.
4. The installation recommendations and guidelines contained herein are suggestions only.
Individual installations may vary.
5. Use diesel compatible thread sealer when installing ttings with NPT threads.
(Loctite® 545 Thread Sealer is diesel compatible.)
DO NOT REMOVE FACTORY INSTALLED SECONDARY FUEL FILTERS.
REMOVAL OF A FACTORY INSTALLED SECONDARY FUEL FILTER
MAY VOID YOUR ENGINE WARRANTY.
SAFETY GUIDELINES
CAUTION: Chock the vehicle’s tires to prevent rolling.
CAUTION: Disconnect the battery cables before proceeding with the AirDog® installation.
CAUTION: Wear safety glasses when operating power tools such as drills and grinders or when
using a punch or chisel.
CAUTION: Do Not drill into or weld the top of the frame rail or within 1-½” of the frame rail
ange on the side of the frame rail.
CAUTION: Route the fuel lines and electrical harnesses keeping them away from hot exhaust
components and/or moving parts. Properly secure the fuel lines and electrical
harnesses to prevent chang.
If you are uncertain of any installation procedure, please call:
PureFlow®Technologies, Inc. at 573-635-0555 for technical assistance.
NOTE: The pictures used in this manual are for example only and may not depict
the exact components as found on your truck.

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AirDog®FPII-150 Detroit Series 60 2003-09
Installation Parts List
Section 3 Parts List
1 #6 M JIC x 3/8” F NPT Return Fitting 4A-1-04-06-06-S
1 3/8” Return Tee 4A-4-08-06-06-B
1 #6 x #6 F Union Swivel 4A-1-22-06-06-B
2 # 6 F JIC Swivel x 3/8” Pushlock Hose Barb 4A-1-09-06-06-B
1 #6 F Swivel x #6 M JIC 90° Elbow 4A-2-04-06-06-S
1 3/8” Street Tee 4A-4-01-06-S
1 #6 M JIC x 3/8” M NPT Straight Adapter 4A-1-02-06-06-S
908-01-0403-RLFK Return Line Fitting Kit
1 Installation Manual 206-1-0403
1 AirDog®- with Serial Number Plate
FPII-150
1 Wiring Harness with Indicator Light 5E-2-010
1 Fuel Filter Monitor Light Plate 201-3-0004-S
1 3/8” Low Pressure Hose (Air/Vapor Return Line) - 7 ft Section 4C-1-02-05-010-7FT
1 Fuel Pressure Sensor 908-5C-9-007 or
908-5C-9-0010
ADFK-403 Installation Kit
Fuel Filter FF200-MG-6
Water Separator WS200-WS
QTY Description Part Number Image
908-00-0304 Frame Mount Kit
2 Mounting Bracket 002-3C-0003
002-3C-0004
2 #10 M JIC x 1/2” M NPT Straight Adapter 4A-1-01-10-08-S
2 #10 F JIC Swivel x #10 M JIC 90° Elbow 4A-2-04-10-10-S
2 #8 M JIC x 1/2” M NPT Straight Adapter 4A-1-01-08-08-S
2 #8 F JIC x 8 M JIC 90° Elbow 4A-2-04-08-08-S
1 #6 M JIC x 1/4” M NPT Straight Adapter 4A-1-01-A-C-SZ
1 Grommet 5J-1-1-04-2758
908-08-0800-UNIV AirDog®FPII Basic Fitting Kit - Universal Applications
SBK-1000 Sandwich Bracket Kit
1 901-08-0100-SB Hardware Kit Includes:
4 ea 3/8”-16 x 1” Socket Head Cap Screw 1M-C16SZ
3 ea 3/8”-16 x 3-1/2” Hex Head Bolt 1J-1-C56SZ
3 each 3/8”-16 x 4-1/2” Hex Head Bolt 1J-1-C72SZ
7 ea 3/8” Nut 1S-1-CSZ
7 ea 3/8” Lock Washer 1R-6-CSZ
1 Sandwich Mounting Bracket Kit for AirDog®& Champ 002-3C-0010-SBF
Includes: 1 Front - 1 Back & 002-3C-0011-SBB
1 Center Bracket 002-3C-0006PCB
OPTIONAL
1 901-08-0100 Hardware Kit Includes:
4 ea 3/8” x 1-1/4” Hex Head Bolt 1J-1-C20SZ
4 ea 3/8” Nut 1S-1-CSZ
4 ea 3/8” Lock Washer 1R-6-CSZ
4 ea 1/4-20 x 2” Socket Head Cap Screw 1L-A32C
4 ea 1/4” Lock Washer 1R-6-AC
4 ea 1/4-20 Hex Nut 1S-1-AC

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AirDog®FPII-150 Detroit Series 60 2003-09
Selecting the Best Location to Mount the AirDog®
Installing the AirDog® at the proper location on the vehicle is most important. When deciding where
to locate the AirDog®, the following points should be considered:
• Best relationship to the transfer pump and the original primary fuel lter location
• Protection from the elements and road debris
• Accessibility for service
CAUTION: DO NOT mount the AirDog®directly on the engine.
Mounting the AirDog®directly on the engine will
immediately VOID your AirDog®Warranty!
Pictures below show examples of dierent AirDog®installations. There are many
variations in the arrangements of the components on the various trucks. With a
little ingenuity, the AirDog® can be successfully installed on any Class 8 Truck.
This installation shows the AirDog® mounted under the steering column ahead of the shock absorber.
Plenty of room here!
NOTE: Check for clearance with the tire turned both toward and away from the AirDog®.
Section 4 Selecting the Best Mounting Location

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AirDog®FPII-150 Detroit Series 60 2003-09
Selecting the Best Mounting Location, cont’d
This picture nds space to mount the AirDog®on a bracket
in the location of the original primary fuel lter.
This installation on a short nose “Day Cab”
is on the driver’s side, behind the battery
box.
This shows space to mount the
AirDog®to the rear of the shock
absorber.
Section 4 Selecting the Best Mounting Location

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AirDog®FPII-150 Detroit Series 60 2003-09
NO DRILL Universal Sandwich Mounting Bracket
Sandwich bracket comes with all hardware that is needed and NO DRILLING
Sandwich bracket can be used in any combination of ways to t your truck.
Sandwich bracket slides right over existing frame.
Section 5 Optional Bracket Kit
OPTIONAL KIT AVAILABLE (PN: SBK-1000)

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PureFlow®Technologies, Inc.
AirDog®FPII-150 Detroit Series 60 2003-09
Mounting the AirDog® on the Truck’s Frame (Drilling Method)
5-1. Disconnect the fuel lines and remove the primary fuel lter.
NOTE: Mount the AirDog® as close to the location of the primary fuel lter as possible. This
will allow you, in most cases, to use the original fuel supply line from the fuel tank and also the
fuel line to the engine.
5-2. Loosely assemble the mounting brackets and lters to the AirDog®.
5-3. Hold the AirDog®, with the brackets and lters attached, next to the frame at the selected
mounting location. Check for clearance. If mounted between the frame and steer tire, turn the
steering wheel fully to the left and right to check for tire clearance.
Section 5 Mounting the AirDog®
5-4. Hold the AirDog® at the selected mounting location on the frame. Mark and center punch
each hole location.

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PureFlow®Technologies, Inc.
AirDog®FPII-150 Detroit Series 60 2003-09
Installing the AirDog® on the Truck’s Frame, cont’d
5-5. Drill a 3/8” hole at each of the 4 previously marked
locations.
WARNING!
DO NOT DRILL INTO OR DAMAGE ANY
WIRING, AIR LINES OR OTHER COMPONENTS
LOCATED BEHIND THE FRAME RAIL.
5-6. Loosely assemble the mounting brackets to the frame.
5-7. Mount and loosely assemble the AirDog® on the brackets.
5-8. After mounting the AirDog® on the brackets, snug the fasteners to achieve a good relaxed t.
5-9. Properly tighten all of the fasteners.
NOTE: These steps are necessary to prevent stress
cracks from forming in the mounting
brackets due to vibration.
Section 5 Mounting the AirDog®

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AirDog®FPII-150 Detroit Series 60 2003-09
FUEL LINE OVERVIEW
Optional Secondary Fuel System Eciency Upgrade Available!
(See page 16 for installation details)
For Peak Engine Eciency and Maximum Fuel Economy, AirDog®installation
kits for the Detroit Diesel Series 60® include: instructions, ttings, and fuel lines
to upgrade the OE fuel lines. THIS IS RECOMMENDED FOR OPTIMAL
PERFORMANCE WHEN INSTALLING THE AIRDOG®ON THE DETROIT
DIESEL SERIES 60®ENGINE!
The AirDog® has been engineered to eliminate fuel related problems. It is important
that the fuel lines are assembled and installed properly so as not to cause fuel ow
restriction.
When possible, use the fuel lines that are on the vehicle. This will reduce your
installation costs and make the installation go much more quickly.
NOTE: On various class 8 trucks, the manufacturer may use “plastic” or other than
traditional steel braid fuel lines. These lines require special ttings. The ttings used
with the original primary fuel lter are specic to the fuel lines used on the truck.
When possible, mount the AirDog®in the location that will allow the use of the
original fuel lines and ttings.
Inspect the original fuel lines for size, length, and condition. If the fuel lines are in
good condition and the correct size and length to adequately reach the AirDog®, you
may want to go ahead and use them. If any of the fuel lines need to be replaced, it is
recommended that the fuel lines selected meet or exceed SAE 100R5 requirements.
Fuel Supply Line: The fuel supply lines from the tank to the AirDog®and to the
engine should be size 10, or at the absolute minimum, size 8.
Air/Vapor Return Line: The AirDog®return line should be connected to the engine’s
return line, low pressure side. A size 6 line for the Air/Vapor return line is adequate.
Primary Fuel Filters: It is most important that there are no fuel lters between the
fuel tank and the AirDog®or between the AirDog®and the engine’s transfer pump to
plug and cause fuel ow issues. These lters must be removed from the system as part
of the AirDog® installation.
Secondary Fuel Filters: DO NOT REMOVE SECONDARY FUEL FILTERS. This is
the lter between the transfer pump and the engine head.
Section 6 Fuel Lines
Assembly Instruction for Hose Barb
1. Cut hose line to length.
2. Apply oil to tting.
3. Push tting into line until seated.

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PureFlow®Technologies, Inc.
AirDog®FPII-150 Detroit Series 60 2003-09
Section 6B: Connecting the AirDog®Pressure Line
to the Transfer Pump on the Engine
6B-1. Connect the original fuel line from the primary fuel lter to the transfer pump to the AirDog®
out to “Engine” port. If the fuel line is not in good condition or the proper length to make the con-
nection, replace it with a new fuel line.
Note: This engine does not have
a secondary fuel lter.
Section 6 Fuel Lines
Installing the Fuel Fittings and Pressure Sensor
IMPORTANT: Use diesel compatible thread sealer when installing NPT ttings.
NOTE: Pictures below illustrate the installation of straight ttings - #8 JIC and #10 JIC ttings have
been included - you will use one or the other based on your fuel line size. In some instances, 90º
ttings may be required to connect the fuel lines to the AirDog®. Therefore, 90º ttings have also
been included in the kit.
6A-1. Install the straight #10 (or #8) JIC x ½” NPT fuel tting in the AirDog® fuel port
marked “ENGINE”.
6A-2. Install a straight #10 (or #8) JIC x ½” NPT fuel tting into the fuel inlet port next to the
regulator marked “FUEL IN”.
6A-3. Install the ¼” NPT x #6 JIC Male Air/Vapor return tting into the Air/Vapor return port
marked “TANK”.
6A-4. Remove the 1/8” NPT plug in the 45° elbow. Install the pressure sensor into the elbow.

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AirDog®FPII-150 Detroit Series 60 2003-09
Connecting the AirDog®Fuel Line to the Transfer Pump
on the Engine, cont’d
6B-2. When replacing the fuel line connecting the AirDog®to the engine transfer pump, measure
and cut the length of fuel line required, when properly routed, to make the connection. Assemble the
fuel line per standard procedures.
6B-3. Connect one end of the fuel line to the AirDog® port marked “ENGINE”.
6B-4. Route the new fuel line from the AirDog® to the transfer pump. Connect the fuel line to the
transfer pump fuel inlet tting. Properly tighten the ttings. Secure the fuel line as necessary to
prevent abrasion and chang.
SECTION 6C: Installing the AirDog®Return Line
The AirDog® returns entrained air & vapor to the fuel tank. It is best to connect the AirDog® Air/Vapor
return line directly to the engine fuel return line. Be sure to connect it after the pressure regulator.
NOTE: it is recommended to use a # 6 size line (included in kit) for the Air/Vapor return.
Connecting the AirDog®Air/Vapor return to the engine fuel return line.
6C-1. Disconnect the fuel return line connected to the Rail Pressure Regulator at the back of the head.
A curved 90º fuel line tting
was used with this installation.
Detroit Diesel Series 60®w/EGR fuel
transfer pump fuel Inlet.
Engine Fuel Return
Line at back of head
6C-2. Install the Connector, Return Tee, and Return Fitting” between the Restrictor Fitting and the
return line to connect the AirDog® Air/Vapor return line.
NOTE: Some class 8 trucks may have a cab with a short hood. This style of truck will have the
engine recessed into the rewall making the return fuel tting on the back of the head dicult to
reach. If the truck you are installing the AirDog®on has this style cab, it may be easiest to connect
the AirDog®Air/Vapor return line directly to splitter Tee.
Section 6 Fuel Lines

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PureFlow®Technologies, Inc.
AirDog®FPII-150 Detroit Series 60 2003-09
Installing the AirDog®Return Line, cont’d
For trucks with only one fuel tank, it may be easiest to connect the AirDog®return line
directly to the fuel tank. Keep in mind that the #6 return line included with the AirDog®is only long
enough to connect to the engine return line at the engine.
6C-3. If the fuel tank has an extra port, as shown in photo, remove the plug.
6C-4. Install a 3/8” NPT x #6 JIC tting into the port. Use a bushing (not included), if necessary.
6C-5. To install the Air/Vapor return line in a tank with no extra port, install a 3/8” Tee tting in the
engine return line at the fuel tank.
6C-6. The lter assembly has return fuel from the engine running through it to heat the incoming
fuel. When removing this lter, re-connect the return line, from the engine to the return line to the
tank with the 3/8” Tee. Connect the AirDog® return line at the Tee.
6C-7. Measure and cut a length of fuel line required, when properly routed, to connect from the
AirDog®Air/Vapor return tting to the fuel return Tee.
AirDog®
Air/Vapor Return Port
6C-8. Assemble the fuel line using standard procedures for push lock ttings (see page 12).
6C-9. Route and connect the Air/Vapor return line to the air/vapor return tting on the AirDog®and
the return Tee. Properly tighten the ttings. Secure the fuel line as necessary to prevent abrasion and
chang.
Section 6 Fuel Lines
OR

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PureFlow®Technologies, Inc.
AirDog®FPII-150 Detroit Series 60 2003-09
PureFlow®Technologies, Inc.
AirDog®FPII-150
Section 6
Detroit Series 60 2003-09
Fuel Lines
Connecting the AirDog® fuel supply line to the Fuel Tank
6D-1. Inspect the fuel supply lines that connect the fuel tank(s) to the primary fuel lter for size,
length, and condition. If a fuel line has deteriorated or if it is too short to connect to the AirDog®,
replace it or make an extension as necessary.
6D-2. If it is necessary to replace the fuel line, measure and cut the length of fuel line required when
properly routed and secured, to make the connection. Assemble the fuel line per standard procedures.
6D-3. Route the fuel supply line from the fuel tank to the tting on the AirDog®fuel inlet port
marked “FUEL IN”.
Optional Kit available from PureFlow Technologies, Inc. - this kit is NOT
included but recommended for optimal fuel system performance.
Section 7: OPTIONAL AirDog®Detroit Series 60 Fuel Line Upgrade
OR continue on to page 26 for start-up procedure...
6D-4. Connect the fuel supply line from the fuel tank to the tting. Secure the line to prevent
chang and abrasion.
Section 4: AirDog®Detroit Series 60 Fuel Line Upgrade Overview
The Detroit Series 60 engine utilizes “FOR-SEAL” ttings with steel lines on the high pressure side
of the transfer pump. These ttings have small passageways and are restrictive to the fuel ow to the
engine. To maximize the eciency of the Series 60 engines, it is necessary to replace the restrictive
fuel ttings and lines with the larger and less restrictive lines and ttings. These ttings are supplied
with the AirDog® installation kit.
NOTE: Secondary fuel lters are optional on Detroit Diesel Series 60 engines. Section 7A is for
engines WITHOUT secondary fuel lters. Section 7B is for engines WITH secondary fuel lters.
14mm “FOR-SEAL”
Fitting 0.240” ID
Passageway
AirDog®
#8 JIC x 14mm
Passageway 0.375” ID
Detroit Series 60 WITH
Secondary Fuel Filter
Detroit Series 60 WITHOUT
Secondary Fuel Filter. Steel line carries
fuel from transfer pump directly to the engine head.

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PureFlow®Technologies, Inc.
AirDog®FPII-150 Detroit Series 60 2003-09
Section 7 Fuel Line Upgrade
Section 7A: Series 60 Engines WITHOUT a Secondary Fuel Filter
7A-1. Disconnect the steel fuel line from the “FOR-SEAL”
fuel tting at the fuel “OUT” port on the transfer pump and
remove OE Fuel tting.
7A-2. Install the new “Ported” 16mm x #8 JIC tting in the
transfer pump fuel “Out” port OR the “Ported” 1/4” M NPT
x #8 M JIC tting.
7A-3. Disconnect the OE fuel supply line from the “FOR-SEAL” fuel tting at the back of the head
and remove the tting.
NOTE: You may remove the OE steel fuel line from the engine.
7A-4. Install the extended 3/8” NPT x #8 JIC 90° elbow into the fuel in port vacated by the
“FOR-SEAL” tting. Use diesel fuel compatible thread sealer on all NPT threads.
Extended 90° 3/8” NPT
x #8 JIC Fitting
7A-5: Measure and cut the length of the fuel line required, when properly routed and secured, to
make the connection from the transfer pump to the fuel inlet tting at the back of the engine head.
Assemble the fuel line with eld attachable fuel line end ttings on each end.
OR
16mm
1/4” NPT

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PureFlow®Technologies, Inc.
AirDog®FPII-150 Detroit Series 60 2003-09
Section 7 Fuel Line Upgrade
Installing the Series 60 Fuel Line Upgrade, cont’d
7A-6. Connect and secure one end of the fuel line assembled in step 4A-5 to the transfer pump fuel
“OUT” port.
Section 4B: Series 60 Engines WITH a Secondary Fuel Filter
7B-1. Disconnect and remove the steel fuel
line from the “FOR-SEAL” fuel tting at the
fuel “OUT” port on the transfer pump and
from the secondary fuel lter, fuel in port.
7B-2. Replace the “FOR-SEAL” tting in the transfer pump with the “Ported” 16mm ORB x #8 JIC
tting OR the “Ported” 1/4” M NPT x #8 M JIC tting.
7B-3. Replace the “FOR-SEAL” tting in the secondary lter with the “Ported” 14mm x #8 JIC
tting OR the “Ported” 1/4” M NPT x #8 M JIC tting.
OR
7A-8. Properly tighten all fuel line connections and ttings. Secure the fuel lines with included zip
ties to prevent chang.
7A-7. Route and connect the new fuel line to the new 90° #8 JIC tting just installed in the back of
the engine head.
16mm 1/4” NPT
1/4” NPT
14mm

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PureFlow®Technologies, Inc.
AirDog®FPII-150 Detroit Series 60 2003-09
Section 7 Fuel Line Upgrade
Section 4B: Installing the Series 60 Fuel Line
Upgrade, cont’d
7B-4. Measure and cut the length of the fuel line required to
connect the transfer pump fuel “OUT” port to the secondary lter
fuel “IN” port.
7B-5. Assemble the fuel line with one straight and one 90°, eld attachable fuel line end tting, as
illustrated in.
7B-6. Attach the straight end to the
transfer pump “OUT” port and the
90° end to the secondary fuel lter.
7B-8. Install the “Ported” 14mm x #8 JIC tting OR the “Ported” 1/4” M NPT x #8 M JIC tting in
the “Out to Engine” port.
7B-9. Disconnect the OE fuel supply line from the “FOR-SEAL” fuel inlet tting at the back of the
head. Remove the steel line and tting.
7B-10. Install the 90° extended 3/8” NPT x #8 JIC tting into the fuel in port vacated by the
“FOR-SEAL” tting. Use diesel fuel compatible thread sealer on all NPT threads.
Extended 90° 3/8” NPT
x #8 JIC Flare Fitting
OR
7B-7. Disconnect and remove the steel fuel line and shut-o valve from the secondary fuel lter
outlet.
1/4” NPT
14mm

20
PureFlow®Technologies, Inc.
AirDog®FPII-150 Detroit Series 60 2003-09
Section 7 Fuel Line Upgrade
Section 4B: Installing the Series 60 Fuel Line Upgrade, cont’d
7B-11. Measure and cut the length of fuel line required to connect the secondary lter “OUT” port to
the 90° #8 JIC tting just installed in the back of the engine head.
7B-12. Assemble the fuel line with a straight eld attachable fuel line end ttings on each end.
7B-13. Connect the end of the new fuel line to the fuel “OUT” port on the secondary fuel lter.
Route and connect the other end to the 90° #8 JIC fuel tting in the head.
7B-14. Properly tighten all fuel line connections and ttings. Secure the fuel lines with included zip ties
to prevent chang.