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INDUSTRIAL
Fuel Air Separation System
INSTALLATION MANUAL
UNIVERSAL DIESEL ENGINE APPLICATIONS
AIRDOG
FPII-125
®
Revised 6/22/2021
NOW WITH DEMAND FLOW
Proudly Made in the USA
www.airdogdiesel.com
1-573-635-0555 or
1-877-463-4373
Providing "Test Cell Performance" in "Real World Conditions" Since 1993
PROTECTED UNDER THE FOLLOWING PATENTS
CANADA
UNITED STATES OF AMERICA
MEXICO
2,108,391
5,355,860; 5,746,184; 6,729,310
270409
NEW ZEALAND
ITALY
AUSTRALIA
HONG KONG
ECUADOR
532356
1362177
2005101054
1061420
PL10-2021
Additional Foreign Patents Issued and Pending in Europe, South America, Japan, and China
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Table of Contents
Related Manuals for PureFlow Airdog FPII-125
Summary of Contents for PureFlow Airdog FPII-125
- Page 1 INDUSTRIAL Fuel Air Separation System INSTALLATION MANUAL UNIVERSAL DIESEL ENGINE APPLICATIONS AIRDOG FPII-125 ® Revised 6/22/2021 NOW WITH DEMAND FLOW Proudly Made in the USA www.airdogdiesel.com 1-573-635-0555 or 1-877-463-4373 Providing “Test Cell Performance” in “Real World Conditions” Since 1993 PROTECTED UNDER THE FOLLOWING PATENTS CANADA UNITED STATES OF AMERICA MEXICO...
- Page 2 INDUSTRIAL Fuel Air Separation System THE RIGHT CHOICE FOR YOUR DIESEL ENGINE SMALL and COMPACT 7” Long x 3.2” Wide x 10” Tall...
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Page 3: System Overview
SYSTEM OVERVIEW Welcome to the AirDog Heavy Duty FPII-125 ® Fuel Air Separation System The AirDog FPII-125 with ADVANCED FUEL AIR SEPARATION, DEMAND FLOW, ® ADJUSTABLE REGULATOR, LOW PRESSURE SENSOR with LED INDICATOR LIGHT and the 4G-HD FUEL PUMP, is a premium fuel filtration and delivery system for the diesel engine. - Page 4 PureFlow Technologies, Inc. ® AirDog FPII-125 Universal Applications ® QUICK CONNECT COMPONENT OVERVIEW Provided in this kit is an OE style quick connection system. This system works to allow for a quick, clean, and professional install. SAE J2044 Quick Connect System The SAE J2044 quick connect system is the most commonly used system in the automotive industry.
- Page 5 PureFlow Technologies, Inc. ® AirDog FPII-125 Universal Applications ® Section 1 Table of Contents TABLE OF CONTENTS Section 1……..….….…...……........…...……..Table of Contents Section 2……..….…………………....Installation and Safety Guidelines Section 3……..……...…..……….….…....….…………………...….….Parts List INSTALLATION PROCEDURES Section 4…..…............Fittings, Brackets, and Mounting Section 5……..…...…..............………..Fuel Lines Section 6…..……....…..……..………….….…………..Wire Harness Section 7..……....….…..…....……..……Initial Start Up Procedure...
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Page 6: Installation & Safety Guidelines
CAUTION: Do not subject the AirDog® system directly to high-pressure wash systems. Doing so may damage seals and electrical components, and such damage is NOT covered under warranty. If you are uncertain of any installation procedure, please call PureFlow ® Technologies, Inc. at 877-463-4373 for technical assistance. -
Page 7: Parts List
PureFlow Technologies, Inc. ® AirDog FPII-125 Universal Applications ® Section 3 Parts List Installation Parts List QTY Description Part Number Image Fuel Filter FF100-2 AirDog FPII-125 FPII-125 ® Water Separator WS100 001-3C-0004-PC AirDog FPII-125 Bracket ® Frame Brackets 010-3C-0002PC 010-3C-0001PC... - Page 8 PureFlow Technologies, Inc. ® AirDog FPII-125 Universal Applications ® Section 4 Fittings, Brackets, and Mounting Illustration of Quick Connect Components...
- Page 9 PureFlow Technologies, Inc. ® AirDog FPII-125 Universal Applications ® Section 4 Fittings, Brackets, and Mounting Installing the J2044 Quick Connect Fittings & Pressure Sensor into the AirDog FPII-125 Filter Base ® 4-1. Dip the threaded end of the 1/2” M J2044 quick connect x 9/16” UNF (4A-9-08J2044916UNF) fittings into clean motor oil and hand-thread into the “ENGINE”and...
- Page 10 PureFlow Technologies, Inc. ® AirDog FPII-125 Universal Applications ® Section 4 Fittings, Brackets, and Mounting mounting bracket (PN 001-3C-0004-PC) to the frame bracket (PN 4-4. Assemble the AirDog ® 010-3C-0001PC) using the spacer (PN 010-3C-0003A-P) as shown in Figure 5 using the four bolts, lock washers, and nuts included in the mounting bracket hardware kit (PN 901-61-0125) shown in Figure 6.
- Page 11 PureFlow Technologies, Inc. ® AirDog FPII-125 Universal Applications ® Section 4 Fittings, Brackets, and Mounting NOTE: Some frame rails have a bracket that is used to support the frame during the manufacturing process. If this bracket is on your frame rail and obstructs the proper positioning of the AirDog ®...
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Page 12: Fuel Lines
PureFlow Technologies, Inc. ® AirDog FPII-125 Universal Applications ® Section 5 Fuel Lines Assembling the Fuel Lines Assemble the fuel lines and fuel line ends as you install them. It is not recommended to pre-cut fuel lines, as pre-cut lengths may not be accurate. - Page 13 PureFlow Technologies, Inc. ® AirDog FPII-125 Universal Applications ® Section 5 Fuel Lines When installing the AirDog fuel system, it is recommended to bypass the factory filter canister ® for optimum engine performance. 5-2. Remove the original factory fuel supply line at the fuel inlet port of the injection pump (Figure 16).
- Page 14 PureFlow Technologies, Inc. ® AirDog FPII-125 Universal Applications ® Section 5 Fuel Lines 5-5. It is advised to remove the factory supply lines between the tank and the filter canister, if equipped. Also, remove the factory supply line between the filter canister and the injection pump.
- Page 15 PureFlow Technologies, Inc. ® AirDog FPII-125 Universal Applications ® Section 5 Fuel Lines 5-6. Assemble one end of the 1/2” fuel return line (reference Section 5) using fuel line end FQC3890 and plug it into the “Return” J2044 fitting installed in the AirDog (Figure 20).
- Page 16 PureFlow Technologies, Inc. ® AirDog FPII-125 Universal Applications ® Section 5 Fuel Lines NOTE: For the return to tank connections, a 3/8” NPT Tee (PN 4A-4-01-06-S) and #8 M JIC x 3/8” M NPT Adapter (PN 4A-1-02-08-06-SZ) have been included in this kit, and are adaptable to most applications.
- Page 17 PureFlow Technologies, Inc. ® AirDog FPII-125 Universal Applications ® Section 5 Fuel Lines Fuel Suction Line Connecting the Fuel Supply Line from the Tank to the AirDog® FPII-125 5-8. Remove the original fuel suction line fitting from fuel tank. The original suction line can be tied out of the way or removed.
- Page 18 PureFlow Technologies, Inc. ® AirDog FPII-125 Universal Applications ® Section 6 Wire Harness Wire Harness *VERY IMPORTANT: The AirDog electrical harness requires a 15 amp fuse. ® The AirDog wire harness has a low pressure sensor and an amber LED indicator light as standard ®...
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Page 19: Wire Harness
PureFlow Technologies, Inc. ® AirDog FPII-125 Universal Applications ® Section 6 Wire Harness Relay Trigger Lead and Indicator Light Lead The indicator light lead must be routed through the firewall and to the dashboard. The relay trigger lead must be connected to a contact point that is electrically “HOT” when the key is in the “RUN”... - Page 20 PureFlow Technologies, Inc. ® AirDog FPII-125 Universal Applications ® Section 6 Wire Harness 6-7. Select a location on the dashboard that is easily visible to the driver. 6-8. Remove the dash components as necessary to access the area behind the selected location.
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Page 21: Initial Start Up Procedure
PureFlow Technologies, Inc. ® AirDog FPII-125 Universal Applications ® Section 7 Initial Start Up Initial Start Up Procedure 7-1. The AirDog FPII-125 is a self priming system, however, to prevent possible damage to the ® system, it is recommended to fill the water separator with diesel fuel before initial start up. -
Page 22: Filter Service
PureFlow Technologies, Inc. ® AirDog FPII-125 Universal Applications ® Section 8 Filter Service Filter Service Recommendations Plugging of either the fuel filter or the water separator itself will cause low fuel pressure and low flow to the engine. If a low fuel pressure issue exists, replace the fuel filter. Typical fuel filter life is 15-20k miles depending on fuel quality. - Page 23 NOTES...
- Page 24 PureFlow Technologies, Inc. ® AirDog FPII-125 Universal Applications ® Copyright 2017 Rev. 3 © CD Patents, LLC June 22, 2021 All Rights Reserved...
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